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result sql = Mechanisms for the activity of heterocyclic cyclohexanone curcumin derivatives in estrogen receptor negative human breast cancer cell lines.
Mechanisms for the activity of heterocyclic cyclohexanone curcumin derivatives in estrogen receptor negative human breast cancer cell lines.
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char = A;code = 65
char = -;code = 45
char = M;code = 77
char = B;code = 66
char = -;code = 45
char = 2;code = 50
char = 3;code = 51
char = 1;code = 49
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char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = S;code = 83
char = K;code = 75
char = B;code = 66
char = r;code = 114
char = 3;code = 51
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
char = r;code = 114
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char = s;code = 115
char = p;code = 112
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 = 46
char = ;code = 32
char = M;code = 77
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char = c;code = 99
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = c;code = 99
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char = a;code = 97
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = s;code = 115
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = R;code = 82
char = L;code = 76
char = 9;code = 57
char = 0;code = 48
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = R;code = 82
char = L;code = 76
char = 9;code = 57
char = 1;code = 49
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = l;code = 108
char = y;code = 121
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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 = G;code = 71
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = /;code = 47
char = M;code = 77
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char = p;code = 112
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = e;code = 101
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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 = a;code = 97
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = n;code = 110
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 = 46
char = ;code = 32
char = R;code = 82
char = L;code = 76
char = 9;code = 57
char = 0;code = 48
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = R;code = 82
char = L;code = 76
char = 9;code = 57
char = 1;code = 49
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = s;code = 115
char = o;code = 111
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = d;code = 100
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
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 = k;code = 107
char = e;code = 101
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = g;code = 103
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ,;code = 44
char = ;code = 32
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 = a;code = 97
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = S;code = 83
char = K;code = 75
char = B;code = 66
char = r;code = 114
char = 3;code = 51
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 = 44
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = H;code = 72
char = e;code = 101
char = r;code = 114
char = -;code = 45
char = 2;code = 50
char = ,;code = 44
char = ;code = 32
char = A;code = 65
char = k;code = 107
char = t;code = 116
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = N;code = 78
char = F;code = 70
char = &;code = 38
char = #;code = 35
char = 9;code = 57
char = 5;code = 53
char = 4;code = 52
char = ;;code = 59
char = B;code = 66
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = t;code = 116
char = i;code = 105
char = m;code = 109
char = e;code = 101
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = p;code = 112
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = n;code = 110
char = n;code = 110
char = e;code = 101
char = r;code = 114
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = i;code = 105
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = k;code = 107
char = i;code = 105
char = n;code = 110
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = J;code = 74
char = N;code = 78
char = K;code = 75
char = 1;code = 49
char = /;code = 47
char = 2;code = 50
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = P;code = 80
char = 3;code = 51
char = 8;code = 56
char = ;code = 32
char = M;code = 77
char = A;code = 65
char = P;code = 80
char = K;code = 75
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
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char = i;code = 105
char = n;code = 110
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = .;code = 46
char = ;code = 32
char = S;code = 83
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char = g;code = 103
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = n;code = 110
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char = ;code = 32
char = e;code = 101
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char = e;code = 101
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = M;code = 77
char = D;code = 68
char = A;code = 65
char = -;code = 45
char = M;code = 77
char = B;code = 66
char = -;code = 45
char = 2;code = 50
char = 3;code = 51
char = 1;code = 49
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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 = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = l;code = 108
char = y;code = 121
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char = i;code = 105
char = m;code = 109
char = p;code = 112
char = l;code = 108
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = E;code = 69
char = G;code = 71
char = F;code = 70
char = R;code = 82
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = s;code = 115
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char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
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char = d;code = 100
char = e;code = 101
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = G;code = 71
char = S;code = 83
char = K;code = 75
char = -;code = 45
char = 3;code = 51
char = &;code = 38
char = #;code = 35
char = 9;code = 57
char = 4;code = 52
char = 6;code = 54
char = ;;code = 59
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
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char = d;code = 100
char = e;code = 101
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = i;code = 105
char = l;code = 108
char = e;code = 101
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char = &;code = 38
char = #;code = 35
char = 9;code = 57
char = 4;code = 52
char = 6;code = 54
char = ;;code = 59
char = -;code = 45
char = c;code = 99
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = P;code = 80
char = 3;code = 51
char = 8;code = 56
char = ;code = 32
char = M;code = 77
char = A;code = 65
char = P;code = 80
char = K;code = 75
char = ,;code = 44
char = ;code = 32
char = A;code = 65
char = k;code = 107
char = t;code = 116
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = J;code = 74
char = N;code = 78
char = K;code = 75
char = 1;code = 49
char = /;code = 47
char = 2;code = 50
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
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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
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char = i;code = 105
char = n;code = 110
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = n;code = 110
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char = c;code = 99
char = o;code = 111
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char = c;code = 99
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char = u;code = 117
char = s;code = 115
char = i;code = 105
char = o;code = 111
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char = p;code = 112
char = l;code = 108
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = m;code = 109
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char = n;code = 110
char = t;code = 116
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = o;code = 111
char = u;code = 117
char = p;code = 112
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = c;code = 99
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char = c;code = 99
char = l;code = 108
char = o;code = 111
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char = e;code = 101
char = x;code = 120
char = a;code = 97
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char = o;code = 111
char = n;code = 110
char = e;code = 101
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char = d;code = 100
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = m;code = 109
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char = n;code = 110
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char = d;code = 100
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = v;code = 118
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = s;code = 115
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char = w;code = 119
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char = t;code = 116
char = h;code = 104
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char = h;code = 104
char = e;code = 101
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char = e;code = 101
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char = o;code = 111
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = c;code = 99
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char = r;code = 114
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char = n;code = 110
char = g;code = 103
char = s;code = 115
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = c;code = 99
char = l;code = 108
char = a;code = 97
char = s;code = 115
char = s;code = 115
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = c;code = 99
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char = a;code = 97
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char = i;code = 105
char = o;code = 111
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char = a;code = 97
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char = a;code = 97
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = s;code = 115
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char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = a;code = 97
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char = e;code = 101
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char = m;code = 109
char = o;code = 111
char = r;code = 114
char = e;code = 101
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char = p;code = 112
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = n;code = 110
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char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
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char = b;code = 98
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char = t;code = 116
char = h;code = 104
char = ;code = 32
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = i;code = 105
char = n;code = 110
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char = a;code = 97
char = n;code = 110
char = d;code = 100
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char = o;code = 111
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char = h;code = 104
char = e;code = 101
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char = d;code = 100
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = v;code = 118
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = n;code = 110
char = e;code = 101
char = w;code = 119
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = v;code = 118
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result sql = Estrogen receptor (ER)-negative breast cancer is an aggressive form that currently requires more drug treatment options. Thus, we have further modified cyclohexanone derivatives of curcumin and examined them for cytotoxicity towards ER-negative human breast cancer cells. Two of the analogs screened elicited increased cytotoxic potency compared to curcumin and other previously studied derivatives. Specifically, 2,6-bis(pyridin-3-ylmethylene)-cyclohexanone (RL90) and 2,6-bis(pyridin-4-ylmethylene)-cyclohexanone (RL91) elicited EC(50) values of 1.54 and 1.10 µM, respectively, in MDA-MB-231 cells and EC(50) values of 0.51 and 0.23 in SKBr3 cells. All other new compounds examined were less potent than curcumin, which elicited EC(50) values of 7.6 and 2.4 µM in MDA-MB-231 and SKBr3 cells, respectively. Mechanistic analyses demonstrated that RL90 and RL91 significantly induced G(2)/M-phase cell cycle arrest and apoptosis. RL90 and RL91 also modulated the expression of key cell signaling proteins, specifically, in SKBr3 cells, protein levels of Her-2, Akt, and NFκB were decreased in a time-dependent manner, while activity of stress kinases JNK1/2 and P38 MAPK were increased. Signaling events in MDA-MB-231 cells were differently implicated, as EGFR protein levels were decreased and activity of GSK-3β transiently decreased, while β-catenin protein level and activity of P38 MAPK, Akt, and JNK1/2 were transiently increased. In conclusion replacement of the phenyl group of cyclohexanone derived curcumin derivatives with heterocyclic rings forms a class of second-generation analogs that are more potent than both curcumin and other derivatives. These new derivatives provide a platform for the further development of drugs for the treatment of ER-negative breast cancer.

Publication: Invest New Drugs 2011 Feb ;29(1)::87-97. :doi: 10.1007/s10637-009-9339-0.
Publication Date: 2011 Feb
Study Author(s): Somers-Edgar, Tiffany J;Taurin, Sebastien;Larsen, Lesley;Chandramouli, Anupama;Nelson, Mark A;Rosengren, Rhonda J;
Institution: Department of Pharmacology & Toxicology, University of Otago, 18 Frederick Street, Adams Building, Dunedin, New Zealand.
Shortcut link to this study:
Estrogen receptor (ER)-negative breast cancer is an aggressive form that currently requires more drug treatment options. Thus, we have further modified cyclohexanone derivatives of curcumin and examined them for cytotoxicity towards ER-negative human breast cancer cells. Two of the analogs screened elicited increased cytotoxic potency compared to curcumin and other previously studied derivatives. Specifically, 2,6-bis(pyridin-3-ylmethylene)-cyclohexanone (RL90) and 2,6-bis(pyridin-4-ylmethylene)-cyclohexanone (RL91) elicited EC(50) values of 1.54 and 1.10 µM, respectively, in MDA-MB-231 cells and EC(50) values of 0.51 and 0.23 in SKBr3 cells. All other new compounds examined were less potent than curcumin, which elicited EC(50) values of 7.6 and 2.4 µM in MDA-MB-231 and SKBr3 cells, respectively. Mechanistic analyses demonstrated that RL90 and RL91 significantly induced G(2)/M-phase cell cycle arrest and apoptosis. RL90 and RL91 also modulated the expression of key cell signaling proteins, specifically, in SKBr3 cells, protein levels of Her-2, Akt, and NFκB were decreased in a time-dependent manner, while activity of stress kinases JNK1/2 and P38 MAPK were increased. Signaling events in MDA-MB-231 cells were differently implicated, as EGFR protein levels were decreased and activity of GSK-3β transiently decreased, while β-catenin protein level and activity of P38 MAPK, Akt, and JNK1/2 were transiently increased. In conclusion replacement of the phenyl group of cyclohexanone derived curcumin derivatives with heterocyclic rings forms a class of second-generation analogs that are more potent than both curcumin and other derivatives. These new derivatives provide a platform for the further development of drugs for the treatment of ER-negative breast cancer.
PMID: 19816657

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