|
|
char = [;code = 91
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char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
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char = o;code = 111
char = f;code = 102
char = ;code = 32
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char = f;code = 102
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char = n;code = 110
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = m;code = 109
char = p;code = 112
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char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = i;code = 105
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char = i;code = 105
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char = o;code = 111
char = p;code = 112
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char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
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char = f;code = 102
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char = M;code = 77
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char = l;code = 108
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char = 4;code = 52
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char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ];code = 93
char = .;code = 46
result sql = [Effect of caffeine on camptothecin-induced apoptosis of Molt-4 cells].
[Effect of caffeine on camptothecin-induced apoptosis of Molt-4 cells].char = <;code = 60
char = b;code = 98
char = >;code = 62
char = B;code = 66
char = A;code = 65
char = C;code = 67
char = K;code = 75
char = G;code = 71
char = R;code = 82
char = O;code = 79
char = U;code = 85
char = N;code = 78
char = D;code = 68
char = ;code = 32
char = &;code = 38
char = ;code = 32
char = O;code = 79
char = B;code = 66
char = J;code = 74
char = E;code = 69
char = C;code = 67
char = T;code = 84
char = I;code = 73
char = V;code = 86
char = E;code = 69
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
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char = >;code = 62
char = C;code = 67
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
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char = ;code = 32
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char = ;code = 32
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char = t;code = 116
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char = l;code = 108
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char = c;code = 99
char = y;code = 121
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char = s;code = 115
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char = f;code = 102
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char = o;code = 111
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char = l;code = 108
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char = c;code = 99
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char = i;code = 105
char = m;code = 109
char = p;code = 112
char = a;code = 97
char = c;code = 99
char = t;code = 116
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char = ;code = 32
char = a;code = 97
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char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = u;code = 117
char = m;code = 109
char = o;code = 111
char = r;code = 114
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char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = i;code = 105
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char = d;code = 100
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char = b;code = 98
char = a;code = 97
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char = e;code = 101
char = .;code = 46
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char = T;code = 84
char = h;code = 104
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char = s;code = 115
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char = u;code = 117
char = d;code = 100
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char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = r;code = 114
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char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = i;code = 105
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char = e;code = 101
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char = t;code = 116
char = i;code = 105
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char = a;code = 97
char = t;code = 116
char = e;code = 101
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char = t;code = 116
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char = e;code = 101
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char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
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char = t;code = 116
char = s;code = 115
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char = o;code = 111
char = f;code = 102
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char = c;code = 99
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char = f;code = 102
char = f;code = 102
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char = e;code = 101
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char = ;code = 32
char = c;code = 99
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char = d;code = 100
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char = a;code = 97
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char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = c;code = 99
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char = l;code = 108
char = l;code = 108
char = ;code = 32
char = c;code = 99
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char = c;code = 99
char = l;code = 108
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char = c;code = 99
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char = e;code = 101
char = c;code = 99
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char = s;code = 115
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char = o;code = 111
char = f;code = 102
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char = l;code = 108
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char = a;code = 97
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char = c;code = 99
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char = l;code = 108
char = l;code = 108
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char = l;code = 108
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char = e;code = 101
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char = M;code = 77
char = o;code = 111
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char = 4;code = 52
char = .;code = 46
char = <;code = 60
char = b;code = 98
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char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = M;code = 77
char = E;code = 69
char = T;code = 84
char = H;code = 72
char = O;code = 79
char = D;code = 68
char = S;code = 83
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char = :;code = 58
char = ;code = 32
char = <;code = 60
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char = b;code = 98
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char = T;code = 84
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char = c;code = 99
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char = l;code = 108
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char = o;code = 111
char = p;code = 112
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char = s;code = 115
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char = c;code = 99
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char = c;code = 99
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char = m;code = 109
char = p;code = 112
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char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
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char = n;code = 110
char = ,;code = 44
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char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
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char = n;code = 110
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = a;code = 97
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char = u;code = 117
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
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char = i;code = 105
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char = f;code = 102
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char = e;code = 101
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result sql = BACKGROUND & OBJECTIVE : Caffeine could act on cell cycle checkpoints and affect the progression of cell cycle, but its impact on apoptosis of tumor cells is in debate. This study was carried out to investigate the effects of caffeine on camptothecin-induced apoptosis and cell cycle checkpoints of leukemia cell line Molt-4.
METHODS : The cell apoptosis was induced by camptothecin, and caffeine was used to interfere with cell cycle checkpoints. The apoptosis rate and cell cycle during apoptosis were analyzed using sub-G1 method and Annexin V-propidium iodide (Annexin V/PI) staining.
RESULTS : Caffeine (2.0-20.0 mmon/L) had no effect on proliferation of Molt-4 cells in exponentially growth phase. Camptothecin selectively induced apoptosis of Molt-4 cells in S phase; when induced with camptothecin (0.15 micromol/L) for 4 or 6 h, the apoptosis rates were (23.69+/-2.26)% and (36.99+/-1.42)%. This cell cycle-specific apoptosis were inhibited obviously by caffeine with the apoptosis rates of (4.79+/-0.64)% and (2.69+/-0.56)%. When caffeine was removed, the apoptosis rates increased obviously to (46.23+/-0.21)% and (55.81+/-0.41)%, and still mainly happened in S phase.
CONCLUSIONS : Caffeine could inhibit camptothecin-induced apoptosis of Molt-4 cells. As a drug acting on cell cycle checkpoints, caffeine could transiently shield the surveillance of checkpoints to damaged cells and inhibit cell apoptosis. The effect may be reversed when caffeine is removed away.
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result sql = [Effect of caffeine on camptothecin-induced apoptosis of Molt-4 cells].
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char = s;code = 115
char = ;code = 32
char = i;code = 105
char = m;code = 109
char = p;code = 112
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = u;code = 117
char = m;code = 109
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = b;code = 98
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = r;code = 114
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = g;code = 103
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = -;code = 45
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = k;code = 107
char = p;code = 112
char = o;code = 111
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = u;code = 117
char = k;code = 107
char = e;code = 101
char = m;code = 109
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = M;code = 77
char = o;code = 111
char = l;code = 108
char = t;code = 116
char = -;code = 45
char = 4;code = 52
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = M;code = 77
char = E;code = 69
char = T;code = 84
char = H;code = 72
char = O;code = 79
char = D;code = 68
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = k;code = 107
char = p;code = 112
char = o;code = 111
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = u;code = 117
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = z;code = 122
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = b;code = 98
char = -;code = 45
char = G;code = 71
char = 1;code = 49
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = A;code = 65
char = n;code = 110
char = n;code = 110
char = e;code = 101
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = V;code = 86
char = -;code = 45
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = p;code = 112
char = i;code = 105
char = d;code = 100
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = i;code = 105
char = o;code = 111
char = d;code = 100
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = A;code = 65
char = n;code = 110
char = n;code = 110
char = e;code = 101
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = V;code = 86
char = /;code = 47
char = P;code = 80
char = I;code = 73
char = );code = 41
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = R;code = 82
char = E;code = 69
char = S;code = 83
char = U;code = 85
char = L;code = 76
char = T;code = 84
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = C;code = 67
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = 2;code = 50
char = .;code = 46
char = 0;code = 48
char = -;code = 45
char = 2;code = 50
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = ;code = 32
char = m;code = 109
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = /;code = 47
char = L;code = 76
char = );code = 41
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = d;code = 100
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = M;code = 77
char = o;code = 111
char = l;code = 108
char = t;code = 116
char = -;code = 45
char = 4;code = 52
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = p;code = 112
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = o;code = 111
char = w;code = 119
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = .;code = 46
char = ;code = 32
char = C;code = 67
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = l;code = 108
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = M;code = 77
char = o;code = 111
char = l;code = 108
char = t;code = 116
char = -;code = 45
char = 4;code = 52
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = S;code = 83
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;;code = 59
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = 0;code = 48
char = .;code = 46
char = 1;code = 49
char = 5;code = 53
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = o;code = 111
char = l;code = 108
char = /;code = 47
char = L;code = 76
char = );code = 41
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = 4;code = 52
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = 6;code = 54
char = ;code = 32
char = h;code = 104
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = 2;code = 50
char = 3;code = 51
char = .;code = 46
char = 6;code = 54
char = 9;code = 57
char = +;code = 43
char = /;code = 47
char = -;code = 45
char = 2;code = 50
char = .;code = 46
char = 2;code = 50
char = 6;code = 54
char = );code = 41
char = %;code = 37
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = 3;code = 51
char = 6;code = 54
char = .;code = 46
char = 9;code = 57
char = 9;code = 57
char = +;code = 43
char = /;code = 47
char = -;code = 45
char = 1;code = 49
char = .;code = 46
char = 4;code = 52
char = 2;code = 50
char = );code = 41
char = %;code = 37
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = -;code = 45
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = h;code = 104
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = b;code = 98
char = v;code = 118
char = i;code = 105
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = (;code = 40
char = 4;code = 52
char = .;code = 46
char = 7;code = 55
char = 9;code = 57
char = +;code = 43
char = /;code = 47
char = -;code = 45
char = 0;code = 48
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char = S;code = 83
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char = f;code = 102
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char = e;code = 101
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char = o;code = 111
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char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = h;code = 104
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = -;code = 45
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
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char = o;code = 111
char = p;code = 112
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char = o;code = 111
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char = i;code = 105
char = s;code = 115
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char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
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char = ;code = 32
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char = s;code = 115
char = ;code = 32
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char = ;code = 32
char = d;code = 100
char = r;code = 114
char = u;code = 117
char = g;code = 103
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = c;code = 99
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char = l;code = 108
char = l;code = 108
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = k;code = 107
char = p;code = 112
char = o;code = 111
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = l;code = 108
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = h;code = 104
char = i;code = 105
char = e;code = 101
char = l;code = 108
char = d;code = 100
char = ;code = 32
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char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = r;code = 114
char = v;code = 118
char = e;code = 101
char = i;code = 105
char = l;code = 108
char = l;code = 108
char = a;code = 97
char = n;code = 110
char = c;code = 99
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char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
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char = h;code = 104
char = e;code = 101
char = c;code = 99
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char = p;code = 112
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char = i;code = 105
char = n;code = 110
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char = p;code = 112
char = t;code = 116
char = o;code = 111
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char = e;code = 101
char = ;code = 32
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char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
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char = e;code = 101
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char = n;code = 110
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char = i;code = 105
char = s;code = 115
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = v;code = 118
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result sql = BACKGROUND & OBJECTIVE : Caffeine could act on cell cycle checkpoints and affect the progression of cell cycle, but its impact on apoptosis of tumor cells is in debate. This study was carried out to investigate the effects of caffeine on camptothecin-induced apoptosis and cell cycle checkpoints of leukemia cell line Molt-4.
METHODS : The cell apoptosis was induced by camptothecin, and caffeine was used to interfere with cell cycle checkpoints. The apoptosis rate and cell cycle during apoptosis were analyzed using sub-G1 method and Annexin V-propidium iodide (Annexin V/PI) staining.
RESULTS : Caffeine (2.0-20.0 mmon/L) had no effect on proliferation of Molt-4 cells in exponentially growth phase. Camptothecin selectively induced apoptosis of Molt-4 cells in S phase; when induced with camptothecin (0.15 micromol/L) for 4 or 6 h, the apoptosis rates were (23.69+/-2.26)% and (36.99+/-1.42)%. This cell cycle-specific apoptosis were inhibited obviously by caffeine with the apoptosis rates of (4.79+/-0.64)% and (2.69+/-0.56)%. When caffeine was removed, the apoptosis rates increased obviously to (46.23+/-0.21)% and (55.81+/-0.41)%, and still mainly happened in S phase.
CONCLUSIONS : Caffeine could inhibit camptothecin-induced apoptosis of Molt-4 cells. As a drug acting on cell cycle checkpoints, caffeine could transiently shield the surveillance of checkpoints to damaged cells and inhibit cell apoptosis. The effect may be reversed when caffeine is removed away.
Publication: Ai Zheng 2005 Dec ;24(12)::1479-83.
Publication Date: 2005 Dec
Study Author(s): Tan, Hui-Ling;Feng, Yong-Dong;Tao, De-Ding;Xiao, Hui;Xie, Da-Xing;Yu, Cong-Nian;Gong, Jian-Ping;
Institution: Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P. R. China.
Shortcut link to this study:
Publication Date: 2005 Dec
Study Author(s): Tan, Hui-Ling;Feng, Yong-Dong;Tao, De-Ding;Xiao, Hui;Xie, Da-Xing;Yu, Cong-Nian;Gong, Jian-Ping;
Institution: Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P. R. China.
Shortcut link to this study:
BACKGROUND & OBJECTIVE : Caffeine could act on cell cycle checkpoints and affect the progression of cell cycle, but its impact on apoptosis of tumor cells is in debate. This study was carried out to investigate the effects of caffeine on camptothecin-induced apoptosis and cell cycle checkpoints of leukemia cell line Molt-4.
METHODS : The cell apoptosis was induced by camptothecin, and caffeine was used to interfere with cell cycle checkpoints. The apoptosis rate and cell cycle during apoptosis were analyzed using sub-G1 method and Annexin V-propidium iodide (Annexin V/PI) staining.
RESULTS : Caffeine (2.0-20.0 mmon/L) had no effect on proliferation of Molt-4 cells in exponentially growth phase. Camptothecin selectively induced apoptosis of Molt-4 cells in S phase; when induced with camptothecin (0.15 micromol/L) for 4 or 6 h, the apoptosis rates were (23.69+/-2.26)% and (36.99+/-1.42)%. This cell cycle-specific apoptosis were inhibited obviously by caffeine with the apoptosis rates of (4.79+/-0.64)% and (2.69+/-0.56)%. When caffeine was removed, the apoptosis rates increased obviously to (46.23+/-0.21)% and (55.81+/-0.41)%, and still mainly happened in S phase.
CONCLUSIONS : Caffeine could inhibit camptothecin-induced apoptosis of Molt-4 cells. As a drug acting on cell cycle checkpoints, caffeine could transiently shield the surveillance of checkpoints to damaged cells and inhibit cell apoptosis. The effect may be reversed when caffeine is removed away.
METHODS : The cell apoptosis was induced by camptothecin, and caffeine was used to interfere with cell cycle checkpoints. The apoptosis rate and cell cycle during apoptosis were analyzed using sub-G1 method and Annexin V-propidium iodide (Annexin V/PI) staining.
RESULTS : Caffeine (2.0-20.0 mmon/L) had no effect on proliferation of Molt-4 cells in exponentially growth phase. Camptothecin selectively induced apoptosis of Molt-4 cells in S phase; when induced with camptothecin (0.15 micromol/L) for 4 or 6 h, the apoptosis rates were (23.69+/-2.26)% and (36.99+/-1.42)%. This cell cycle-specific apoptosis were inhibited obviously by caffeine with the apoptosis rates of (4.79+/-0.64)% and (2.69+/-0.56)%. When caffeine was removed, the apoptosis rates increased obviously to (46.23+/-0.21)% and (55.81+/-0.41)%, and still mainly happened in S phase.
CONCLUSIONS : Caffeine could inhibit camptothecin-induced apoptosis of Molt-4 cells. As a drug acting on cell cycle checkpoints, caffeine could transiently shield the surveillance of checkpoints to damaged cells and inhibit cell apoptosis. The effect may be reversed when caffeine is removed away.
PMID: 16351796
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