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Old 09-05-2008, 11:29 AM   #1
RobinP
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ovarian abalatioin upregulates her2

http://www.ncbi.nlm.nih.gov/pubmed/14503797

Older article, but interesting that estrogen/progesterone down regulates her2.
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2002- dx her2 positive DCIS/bc TX Mast, herceptin chemo
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Old 09-28-2008, 11:08 AM   #2
dilly
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What does this mean

Is upregulation good or bad?
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Old 09-28-2008, 02:07 PM   #3
Janelle
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ovarian ablation and HER2

Can you dumb this down for me? Does this study suggest we should consider NOT taking drugs that remove estrogen from our bodies (tamox) if we are triple positives???

Thanks!
Janelle
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Diagnosed October 2006 at age 37 wtih grade 3 IDC and high grade DCIS
Stage 1c triple positive, no node involvement but
vascular invasion
multifocal disease
Lumpectomy November, 2006
A/C every 3 weeks (started Jan., 2007 and finished March 2007); followed weekly Taxol (finished June 2007) concurrent with Herceptin (finished March 2008);
Bilateral Mast with immediate recon in Sept 2007; finished recon Dec. 2007
Started 5 years of tamoxifen Nov. 2007; started peptide vaccine clinical trial at MD Anderson October 2008 and finished active part of trial in April 2009 (monthly injections of AE37 peptitde (HLA type specific) with GM-CSF or GM-CSF alone depending on if I was in experimental or control group); started Zometa infusions June 25, 2009- 4mg every 6 months for 3 years (taking it "off-label" to try to prevent mets)
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Old 10-02-2008, 05:31 PM   #4
Nguyen
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Upregulation: increasing - downregulation: decreasing.
In this case, increasing the level of her2/neu.

Usually Increasing Her2/neu level indicates recurring disease or resisting disease. HOWEVER, the abstract specifically said that since the CA27.29 was "unchanged", this increasing in Her2/neu can not be used as a disease status indicator.

I don't think just this one study can be used to "...NOT taking drugs...estrogen..." as per Janelle question. Tripple postive (ER+, PR+, Her2+) tumor will "increase" the remaining receptors to compensate when the other is blocked. I think there are data that indicate Her2+ tumor become resistance to tamoxifen faster than Her2 negative.

Nguyen
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Old 10-02-2008, 08:10 PM   #5
Janelle
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Thanks for your input, Nguyen!
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Janelle
Diagnosed October 2006 at age 37 wtih grade 3 IDC and high grade DCIS
Stage 1c triple positive, no node involvement but
vascular invasion
multifocal disease
Lumpectomy November, 2006
A/C every 3 weeks (started Jan., 2007 and finished March 2007); followed weekly Taxol (finished June 2007) concurrent with Herceptin (finished March 2008);
Bilateral Mast with immediate recon in Sept 2007; finished recon Dec. 2007
Started 5 years of tamoxifen Nov. 2007; started peptide vaccine clinical trial at MD Anderson October 2008 and finished active part of trial in April 2009 (monthly injections of AE37 peptitde (HLA type specific) with GM-CSF or GM-CSF alone depending on if I was in experimental or control group); started Zometa infusions June 25, 2009- 4mg every 6 months for 3 years (taking it "off-label" to try to prevent mets)
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