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Anti-HER2 CD4(+) T-helper type 1 response is a novel immune correlate to pathologic response following neoadjuvant therapy in HER2-positive breast cancer.

Breast Cancer Res.. 2015; 
DattaJashodeep,BerkErik,XuShuwen,FitzpatrickElizabeth,RosemblitCinthia,LowenfeldLea,GoodmanNoah,LewisDavid A,ZhangPaul J,FisherCarla,RosesRobert E,DeMicheleAngela,CzernieckiBri
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Peptide Synthesis After plates were blocked, cryopreserved PBMCs, isolated using density gradient centrifugation, were plated in triplicate (2 × 105 cells/well) and incubated at 37 °C for 24–36 h with either HER2 peptides (4 μg; Genscript, Piscataway, NJ, USA); media alone (unstimulated control); or positive control (antihuman CD3/CD28 antibodies (0.5 μg/mL; BD Pharmingen, San Jose, CA, USA)). Get A Quote

摘要

A progressive loss of circulating anti-human epidermal growth factor receptor-2/neu (HER2) CD4(+) T-helper type 1 (Th1) immune responses is observed in HER2(pos)-invasive breast cancer (IBC) patients relative to healthy controls. Pathologic complete response (pCR) following neoadjuvant trastuzumab and chemotherapy (T + C) is associated with decreased recurrence and improved prognosis. We examined differences in anti-HER2 Th1 responses between pCR and non-pCR patients to identify modifiable immune correlates to pathologic response following neoadjuvant T + C.

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