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Tumors Can Change Biologically as They Progress

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123Donna View Drop Down
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    Posted: Jun 27 2012 at 11:14pm
Breast Cancers Can Change Biologically as They Progress and Relapse

In many women with recurrent breast cancer, the estrogen receptor (ER), progesterone receptor (PR), andhuman epidermal growth factor receptor 2 (HER2) status of their tumors changes between treatment for the primary tumor and relapse, a large retrospective study has found. The findings, published June 18 in the Journal of Clinical Oncology, support previous studies that have also detected changes in these biomarkers during cancer progression.

These three biomarkers help doctors choose the best treatments for individual women. Therefore, tumors that recur in the breast or appear elsewhere in the body should be biopsied “as a routine procedure” because the results may influence treatment decisions, recommended the authors led by Dr. Linda Lindström of Cancer Center Karolinska in Sweden.

Dr. Lindström and her colleagues used information from pathology reports for 1,010 women treated at three hospitals in Stockholm, all of whom had biopsies taken from their primary and recurrent breast tumors. All three hospitals had stringent quality-control methods for verifying the accuracy of all three biomarkers.

Primary and recurrent tumors from 459 women were tested for ER expression. In almost 33 percent of those women, the ER status of the tumor changed (ER expression started or stopped) between treatment and relapse. More than 40 percent of the 430 women whose tumors were tested for PR expression had a change in PR status between treatment and relapse. And almost 15 percent of the 104 women whose primary and recurrent tumors were tested for HER2 expression had a change in HER2 status between treatment and relapse.

In women whose cancers relapsed multiple times, similar proportions of changes to biomarkers were observed.

http://www.cancer.gov/ncicancerbulletin/062612/page3

DX IDC TNBC 6/09 age 49, Stage 1,Grade 3, 1.5cm,0/5Nodes,KI-67 48%,BRCA-,6/09bi-mx, recon, T/C X4(9/09)
11/10 Recur IM node, Gem,Carb,Iniparib 12/10,MRI NED 2/11,IMRT Radsx40,CT NED11/13,MRI NED3/15

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123Donna View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 123Donna Quote  Post ReplyReply Direct Link To This Post Posted: Jun 27 2012 at 11:14pm
DX IDC TNBC 6/09 age 49, Stage 1,Grade 3, 1.5cm,0/5Nodes,KI-67 48%,BRCA-,6/09bi-mx, recon, T/C X4(9/09)
11/10 Recur IM node, Gem,Carb,Iniparib 12/10,MRI NED 2/11,IMRT Radsx40,CT NED11/13,MRI NED3/15

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123Donna View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 123Donna Quote  Post ReplyReply Direct Link To This Post Posted: Jun 27 2012 at 11:16pm
DX IDC TNBC 6/09 age 49, Stage 1,Grade 3, 1.5cm,0/5Nodes,KI-67 48%,BRCA-,6/09bi-mx, recon, T/C X4(9/09)
11/10 Recur IM node, Gem,Carb,Iniparib 12/10,MRI NED 2/11,IMRT Radsx40,CT NED11/13,MRI NED3/15

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Post Options Post Options   Thanks (0) Thanks(0)   Quote mainsailset Quote  Post ReplyReply Direct Link To This Post Posted: Jun 28 2012 at 12:00am
You're the best!
dx 7/08 TN 14x6.5x5.5 cm tumor

3 Lymph nodes involved, Taxol/Sunitab+AC, 5/09 dbl masectomy, path 2mm tumor removed, lymphs all clear, RAD 32 finished 9/11/09. 9/28 CT clear 10/18/10 CT clear
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HappyGoLucky Quote  Post ReplyReply Direct Link To This Post Posted: Jun 29 2012 at 9:16pm
Donna
do you mind if I repost this to inspire? We need to see this.
Hugs,
Karen
2/2009 7cm tumor, sent nod. pos. Lumpectomy 3/19/09,a/c dose dense+avastin clinical trial, taxol avastin stopped with pneumonia. 33 Rads 01/2010 ~ reccur 2011 supraclav.and internal mammary nodes. rad
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123Donna View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 123Donna Quote  Post ReplyReply Direct Link To This Post Posted: Jun 29 2012 at 9:28pm
Karen,

Sure, please post where it may help others.

Donna
DX IDC TNBC 6/09 age 49, Stage 1,Grade 3, 1.5cm,0/5Nodes,KI-67 48%,BRCA-,6/09bi-mx, recon, T/C X4(9/09)
11/10 Recur IM node, Gem,Carb,Iniparib 12/10,MRI NED 2/11,IMRT Radsx40,CT NED11/13,MRI NED3/15

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Post Options Post Options   Thanks (0) Thanks(0)   Quote HappyGoLucky Quote  Post ReplyReply Direct Link To This Post Posted: Jun 29 2012 at 9:32pm
Thanks  :))
Karen
2/2009 7cm tumor, sent nod. pos. Lumpectomy 3/19/09,a/c dose dense+avastin clinical trial, taxol avastin stopped with pneumonia. 33 Rads 01/2010 ~ reccur 2011 supraclav.and internal mammary nodes. rad
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123Donna View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 123Donna Quote  Post ReplyReply Direct Link To This Post Posted: May 18 2014 at 11:25am
bumping for new members
DX IDC TNBC 6/09 age 49, Stage 1,Grade 3, 1.5cm,0/5Nodes,KI-67 48%,BRCA-,6/09bi-mx, recon, T/C X4(9/09)
11/10 Recur IM node, Gem,Carb,Iniparib 12/10,MRI NED 2/11,IMRT Radsx40,CT NED11/13,MRI NED3/15

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