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result sql = [Effect of soy isoflavones on cAMP/PKA pathway in breast cancer cells of the rat.].
[Effect of soy isoflavones on cAMP/PKA pathway in breast cancer cells of the rat.].
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char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = P;code = 80
char = K;code = 75
char = A;code = 65
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = R;code = 82
char = I;code = 73
char = A;code = 65
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = g;code = 103
char = a;code = 97
char = m;code = 109
char = m;code = 109
char = a;code = 97
char = -;code = 45
char = (;code = 40
char = 3;code = 51
char = 2;code = 50
char = );code = 41
char = P;code = 80
char = );code = 41
char = ;code = 32
char = A;code = 65
char = T;code = 84
char = P;code = 80
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = o;code = 111
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 = 46
char = ;code = 32
char = R;code = 82
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = s;code = 115
char = c;code = 99
char = r;code = 114
char = i;code = 105
char = p;code = 112
char = t;code = 116
char = -;code = 45
char = p;code = 112
char = o;code = 111
char = l;code = 108
char = y;code = 121
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = R;code = 82
char = T;code = 84
char = -;code = 45
char = P;code = 80
char = C;code = 67
char = R;code = 82
char = );code = 41
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 = 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 = ;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 = c;code = 99
char = A;code = 65
char = M;code = 77
char = P;code = 80
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = p;code = 112
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = l;code = 108
char = e;code = 101
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = b;code = 98
char = i;code = 105
char = n;code = 110
char = d;code = 100
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 = ;code = 32
char = (;code = 40
char = C;code = 67
char = R;code = 82
char = E;code = 69
char = B;code = 66
char = );code = 41
char = ;code = 32
char = m;code = 109
char = R;code = 82
char = N;code = 78
char = A;code = 65
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
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 = 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 = r;code = 114
char = e;code = 101
char = s;code = 115
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = h;code = 104
char = o;code = 111
char = w;code = 119
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 = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
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 = c;code = 99
char = A;code = 65
char = M;code = 77
char = P;code = 80
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
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 = s;code = 115
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
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 = 5;code = 53
char = 0;code = 48
char = ;code = 32
char = m;code = 109
char = u;code = 117
char = g;code = 103
char = /;code = 47
char = m;code = 109
char = l;code = 108
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = i;code = 105
char = d;code = 100
char = z;code = 122
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 1;code = 49
char = 5;code = 53
char = ;code = 32
char = m;code = 109
char = u;code = 117
char = g;code = 103
char = /;code = 47
char = m;code = 109
char = l;code = 108
char = ;code = 32
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
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
char = ;code = 32
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 = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = 9;code = 57
char = .;code = 46
char = 5;code = 53
char = %;code = 37
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 1;code = 49
char = 1;code = 49
char = .;code = 46
char = 0;code = 48
char = %;code = 37
char = ,;code = 44
char = ;code = 32
char = r;code = 114
char = e;code = 101
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 = 44
char = ;code = 32
char = 5;code = 53
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = <;code = 60
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 5;code = 53
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = ;code = 32
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 = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = 3;code = 51
char = 1;code = 49
char = .;code = 46
char = 0;code = 48
char = %;code = 37
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 4;code = 52
char = 0;code = 48
char = .;code = 46
char = 3;code = 51
char = %;code = 37
char = ,;code = 44
char = ;code = 32
char = r;code = 114
char = e;code = 101
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 = 44
char = ;code = 32
char = 1;code = 49
char = 0;code = 48
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = <;code = 60
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 1;code = 49
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = a;code = 97
char = r;code = 114
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 = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = o;code = 111
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
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 = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
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 = A;code = 65
char = C;code = 67
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = d;code = 100
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 = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = r;code = 114
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ,;code = 44
char = ;code = 32
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = P;code = 80
char = D;code = 68
char = E;code = 69
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
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 = t;code = 116
char = o;code = 111
char = ;code = 32
char = 7;code = 55
char = 1;code = 49
char = .;code = 46
char = 8;code = 56
char = %;code = 37
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 7;code = 55
char = 1;code = 49
char = .;code = 46
char = 6;code = 54
char = %;code = 37
char = ,;code = 44
char = ;code = 32
char = r;code = 114
char = e;code = 101
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 = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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char = c;code = 99
char = o;code = 111
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char = t;code = 116
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = ;code = 32
char = g;code = 103
char = r;code = 114
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char = u;code = 117
char = p;code = 112
char = ;code = 32
char = 5;code = 53
char = ;code = 32
char = m;code = 109
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char = n;code = 110
char = ;code = 32
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = <;code = 60
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 5;code = 53
char = );code = 41
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = P;code = 80
char = K;code = 75
char = A;code = 65
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 = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
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 = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = 1;code = 49
char = 2;code = 50
char = 5;code = 53
char = .;code = 46
char = 8;code = 56
char = %;code = 37
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 1;code = 49
char = 2;code = 50
char = 2;code = 50
char = .;code = 46
char = 3;code = 51
char = %;code = 37
char = ,;code = 44
char = ;code = 32
char = r;code = 114
char = e;code = 101
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 = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = o;code = 111
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
char = ;code = 32
char = 2;code = 50
char = 0;code = 48
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = f;code = 102
char = t;code = 116
char = e;code = 101
char = r;code = 114
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char = t;code = 116
char = h;code = 104
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 = 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 = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
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 = d;code = 100
char = a;code = 97
char = i;code = 105
char = d;code = 100
char = z;code = 122
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = <;code = 60
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 5;code = 53
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = k;code = 107
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = g;code = 103
char = h;code = 104
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 = t;code = 116
char = i;code = 105
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = 4;code = 52
char = 0;code = 48
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = f;code = 102
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = m;code = 109
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char = ;code = 32
char = i;code = 105
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result sql = Soy isoflavones have been reported to be natural chemopreventive in several types of human cancer. Daidzein and genistein are two main components of soy isoflavones. In our previous study, they were shown to be anti-proliferative and induce cell cycle arrest at S phase of SHZ-88 rat breast cancer cells. We hypothesized that soy isoflavones might exert its anticancer effect by activating cAMP/PKA pathway. The present study was designed to analyze the effect of soy isoflavones on the cAMP/PKA pathway in SHZ-88 cells. Daidzein and genistein were dissolved in DMSO. Cells were treated with 50 mug/ml daidzein and 15 mug/ml genistein, respectively, and with only equal DMSO in the culture medium as control. The cellular cAMP content was tested by radioimmunoassay (RIA). The activity of adenylate cyclase (AC), phosphodiesterase (PDE) and PKA were measured by RIA and (gamma-(32)P) ATP incorporation. Reverse transcript-polymerase chain reaction (RT-PCR) was used to analyze the expression of cAMP response element binding protein (CREB) mRNA of the cells. The results showed that the concentration of cAMP in the cells treated with 50 mug/ml daidzein and 15 mug/ml genistein was significantly increased by 9.5%and 11.0%, respectively, 5 min later (P<0.05), then increased by 31.0%and 40.3%, respectively, 10 min later (P<0.01), compared with that of the control group cells. The activity of AC was not affected during the course of experiment, but that of PDE was decreased to 71.8%and 71.6%, respectively, in the control group 5 min later (P<0.05). The PKA activity was increased to 125.8%and 122.3%, respectively, in the control group 20 min after the cells were treated with daidzein and genistein (P<0.05), and kept at high level till 40 min after treatment CREB : mRNA of the cells treated with daidzein and genistein was increased by 31.6%and 51.1%, respectively, 3 h later (P<0.05), then began to decrease 6 h after treatment. The current study suggests that soy isoflavones activate the cAMP/PKA pathway in SHZ-88 rat breast cancer cells by inhibiting the activity of phosphodiesterase.

Publication: Sheng Li Xue Bao 2005 Aug 25 ;57(4)::517-22.
Publication Date: 2005 Aug 25
Study Author(s): Lin, Cheng-Zhao;Ma, Hai-Tian;Zou, Si-Xiang;Wang, Guo-Jie;Chen, Wei-Hua;Han, Zheng-Kang;
Institution: College of Veterinary Medicine, Nanjing Agriculture University, Nanjing 210095, ChinaûE-mail: [email protected]
Shortcut link to this study:
Soy isoflavones have been reported to be natural chemopreventive in several types of human cancer. Daidzein and genistein are two main components of soy isoflavones. In our previous study, they were shown to be anti-proliferative and induce cell cycle arrest at S phase of SHZ-88 rat breast cancer cells. We hypothesized that soy isoflavones might exert its anticancer effect by activating cAMP/PKA pathway. The present study was designed to analyze the effect of soy isoflavones on the cAMP/PKA pathway in SHZ-88 cells. Daidzein and genistein were dissolved in DMSO. Cells were treated with 50 mug/ml daidzein and 15 mug/ml genistein, respectively, and with only equal DMSO in the culture medium as control. The cellular cAMP content was tested by radioimmunoassay (RIA). The activity of adenylate cyclase (AC), phosphodiesterase (PDE) and PKA were measured by RIA and (gamma-(32)P) ATP incorporation. Reverse transcript-polymerase chain reaction (RT-PCR) was used to analyze the expression of cAMP response element binding protein (CREB) mRNA of the cells. The results showed that the concentration of cAMP in the cells treated with 50 mug/ml daidzein and 15 mug/ml genistein was significantly increased by 9.5%and 11.0%, respectively, 5 min later (P<0.05), then increased by 31.0%and 40.3%, respectively, 10 min later (P<0.01), compared with that of the control group cells. The activity of AC was not affected during the course of experiment, but that of PDE was decreased to 71.8%and 71.6%, respectively, in the control group 5 min later (P<0.05). The PKA activity was increased to 125.8%and 122.3%, respectively, in the control group 20 min after the cells were treated with daidzein and genistein (P<0.05), and kept at high level till 40 min after treatment CREB : mRNA of the cells treated with daidzein and genistein was increased by 31.6%and 51.1%, respectively, 3 h later (P<0.05), then began to decrease 6 h after treatment. The current study suggests that soy isoflavones activate the cAMP/PKA pathway in SHZ-88 rat breast cancer cells by inhibiting the activity of phosphodiesterase.
PMID: 16094502

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