PMID: 2065267Aug 1, 1991Paper

The relationship of chemotherapeutic and endocrine intervention on natural killer cell activity in human breast cancer

Cancer
B G Brenner, R G Margolese

Abstract

Peripheral blood natural killer (NK) activity against K562 target tumor cells was monitored in patients with breast cancer receiving no treatment, combination chemotherapy, and/or endocrine therapy. NK activity in untreated Stage I patients with no evidence of disease (ned) was significantly higher than in healthy controls. NK activity was shown to decline in individuals with cytotoxic drug therapy (P equals 0.036). There also were reduction in lymphocyte recoveries concomitant with chemotherapeutic intervention (P less than 0.001). Lymphocyte counts were incorporated in a calculation of absolute NK activity that more accurately reflected the significant reduction in NK activity that occurred in patients with localized and systemic disease on chemotherapy. Different chemotherapeutic agents were found to selectively affect NK activity. Stage II patients on phenylalanine mustard (P)/5-fluorouracil (F) (PF) and cyclophosphamide (C)/methotrexate (M)/5-fluorouracil (F) (CMF) protocols showed significant reductions in overall NK activity relative to healthy controls and Stage I patients with ned. Patients on P/doxorubicin (A)/F/tamoxifen (Tx) (PAFT) protocols showed reduced NK activity relative to Stage I patients. Patients on the sh...Continue Reading

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Citations

Jun 15, 2007·Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer·Christina LindemalmHåkan Mellstedt
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