PMID- 12694665 OWN - NLM STAT- MEDLINE DCOM- 20030515 LR - 20190826 IS - 0090-8258 (Print) IS - 0090-8258 (Linking) VI - 89 IP - 1 DP - 2003 Apr TI - No alteration in NK function or zeta chain expression in NK and T cells of cervical cancer patients. PG - 120-8 AB - OBJECTIVE: To investigate in vitro natural killer (NK) cell activity and expression of signal-transducing zeta chains in patients with cervical cancer. PATIENTS AND METHODS: Experiments were performed with frozen lymphocytes from patients at all disease stages and from healthy controls. Thawed NK were activated by overnight incubation in interferon-gamma (IFN-gamma); activity against two target cell lines was assessed by 4-h (51)Cr release assay. Targets chosen were K562, an erythroleukemic cell line, and a cervical carcinoma cell line designated 808. T and NK cell zeta chain expression was measured by flow cytometry. RESULTS: Patients' NK were found to be as cytotoxic as those of normal controls against cell lines K562 and 808. Patient T and NK cells did not show significant down-regulation of the zeta chain. CONCLUSIONS: We have found no evidence to suggest that loss of zeta chains is a mechanism for immunocompromise in patients with cervical carcinoma. IFN-recoverable patient NK activity is not reduced compared to matched controls. This may be clinically relevant since NK are active against cells exhibiting class I human leukocyte antigen (HLA) down-regulation and many cervical cancers show loss of HLA. FAU - Onon, Toli S AU - Onon TS AD - Department of Immunology, Paterson Institute for Cancer Research, Christie Hospital, Manchester, United Kingdom. toli.onon@srht.nhs.uk FAU - Kitchener, Henry C AU - Kitchener HC FAU - Duggan-Keen, Margaret AU - Duggan-Keen M FAU - Stern, Peter L AU - Stern PL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Gynecol Oncol JT - Gynecologic oncology JID - 0365304 RN - 0 (CD3 Complex) RN - 0 (CD3 antigen, zeta chain) RN - 0 (Chromium Radioisotopes) RN - 0 (Receptors, IgG) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Age Factors MH - CD3 Complex/biosynthesis/*immunology MH - Chromium Radioisotopes MH - Cytotoxicity, Immunologic MH - Female MH - Flow Cytometry MH - Humans MH - Interferon-gamma/pharmacology MH - K562 Cells MH - Killer Cells, Natural/*immunology/metabolism MH - Middle Aged MH - Neoplasm Staging MH - Receptors, IgG/biosynthesis/*immunology MH - T-Lymphocytes/*immunology/metabolism MH - Uterine Cervical Neoplasms/*immunology/metabolism/pathology EDAT- 2003/04/16 05:00 MHDA- 2003/05/16 05:00 CRDT- 2003/04/16 05:00 PHST- 2003/04/16 05:00 [pubmed] PHST- 2003/05/16 05:00 [medline] PHST- 2003/04/16 05:00 [entrez] AID - S009082580300009X [pii] AID - 10.1016/s0090-8258(03)00009-x [doi] PST - ppublish SO - Gynecol Oncol. 2003 Apr;89(1):120-8. doi: 10.1016/s0090-8258(03)00009-x.