Talk:HER2
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[edit] This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): EmJT, Saramcallaster.
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Does HER2 have a ligand?
[edit]The following excerpt from the article seems self-contradictory: HER2 is thought to be an orphan receptor, with none of the EGF family of ligands able to activate it. However, ErbB receptors dimerise on ligand binding. Is HER2 an "adopted orphan" receptor, and if so, what is its ligand? Boghog2 19:03, 4 June 2007 (UTC)
- I disagree- if the ligand is unknown it is an orphan receptor, and that should be stated (If the ligand is known that should be stated). Receptors of this family (EGFR) dimerize on binding, and presumably HER2 does also, even if it can't be demonstrated for lack of ligand. So the first statement should definitely be kept, second perhaps modify to "receptors of the EGFR family . . ." Eaberry (talk) 22:08, 14 March 2013 (UTC)
HER2 testing
[edit]How do you test for HER2? Is it a simple blood test?Libraryboy70 (talk) 14:48, 28 October 2009 (UTC)
Image: receptor distribution
[edit]Hi, can someone please explain what's the significance of the receptor distribution illustrated on the second image. Otherwise, it makes no sense to have it in the article. Thanks. -Eleassar my talk 15:29, 27 November 2011 (UTC)
Citation
[edit]I found a citation stating that 30 % of all breast cancers overexpress HER2/neu, however it is only one study including 189 patients, so I don't think it's statistically significant[1] And another one included 61 patients and found a HER2/neu overexpression in 28 % [2]
Pickdu (talk) 21:03, 6 January 2014 (UTC)
- ^ Slamon, DJ (1987 Jan 9). "Human breast cancer: correlation of relapse and survival with amplification of the HER-2/neu oncogene". Science (New York, N.Y.). 235 (4785): 177–82. PMID 3798106.
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suggested) (help) - ^ Tiwari, RK (1992 Mar-Apr). "HER-2/neu amplification and overexpression in primary human breast cancer is associated with early metastasis". Anticancer research. 12 (2): 419–25. PMID 1349794.
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- Thanks for the citations. Per WP:MEDRS, secondary sources are needed to support medical claims, and preferably more recent citations (within the last five years). Fortunately there was a recent review article already cited in the HER2/neu#HER2_and_cancer section that supports the 30% number (see PMID 23320171). I have also added this citation to the lead. Boghog (talk) 22:45, 6 January 2014 (UTC)
Need more on it being a proto-oncogene
[edit]since being a proto-oncogene is behind some of its aliases. What mutations and how does that cause over-activation ? - Rod57 (talk) 12:53, 10 November 2015 (UTC)
External links modified
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The official gene name according to HGNC (genenames.org) is ERBB2
[edit]What is the Wikipedia policy on using official gene names as endorsed by the HUGO Gene Nomenclature Committee? --130.60.206.75 (talk) 09:24, 30 December 2019 (UTC)
Diagnostics, cancer biopsy
[edit]Is the information here (shown below) correct, it states that " is important that trastuzumab is restricted to HER2-positive". Should that read HER2 negative?
" Diagnostics Cancer biopsy HER2 testing is performed in breast cancer patients to assess prognosis and to determine suitability for trastuzumab therapy. It is important that trastuzumab is restricted to HER2-positive individuals as it is expensive and has been associated with cardiac toxicity. For HER2-positive tumours, the risks of trastuzumab clearly outweigh the benefits." 176.252.111.21 (talk) 04:52, 24 July 2021 (UTC)
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