Abstract：
:Immunotherapy in cancer patients is a very promising treatment and the development of new protocols and the study of the mechanisms of regression is imperative. The objective of this study was to evaluate the production of cytokines in helper T (CD4+) lymphocytes during immunotherapy with pegylated IFN-α in patients with cervical intraepithelial neoplasia (CIN). We conducted a prospective study with 17 patients with CIN II-III using immunotherapy with pegylated IFN-α subcutaneouly weekly, and using flow cytometry we evaluated the peripheric CD4+ T lymphocytes. The results show that in the regression group the patients presented a significant increase in the amount of IFN-γ during the entire immunotherapy, compared with the group without a response. The amount of CD4+ T lymphocytes positive for IL-2, IL-4, IL-10 and TGF-β is significantly lower in patients with good clinical response. The results also demonstrate that patients with regression have a higher amount of intracellular TNF-α in CD4+ T lymphocytes before the start of treatment. Analyzing these data sets, it can be concluded that immunotherapy is a viable clinical treatment for patients with high-grade CIN and that the regression is dependent on the change in the immune response to a Th1 pattern.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Michelin MA,Montes L,Nomelini RS,Trovó MA,Murta EFdoi
10.3390/ijms16035497subject
Has Abstractpub_date
2015-03-10 00:00:00pages
5497-509issue
3issn
1422-0067pii
ijms16035497journal_volume
16pub_type
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