A method that allows easy characterization of tumor-infiltrating lymphocytes - PubMed (original) (raw)
Comparative Study
. 2001 Jul 1;253(1-2):163-75.
doi: 10.1016/s0022-1759(01)00356-8.
Affiliations
- PMID: 11384678
- DOI: 10.1016/s0022-1759(01)00356-8
Comparative Study
A method that allows easy characterization of tumor-infiltrating lymphocytes
D W Kowalczyk et al. J Immunol Methods. 2001.
Abstract
A method was developed to compare the lymphocytic infiltrates in regressing vs. progressing experimental mouse tumors using a model for human papillomavirus-16 (HPV-16) oncoprotein-linked cancer. Tumor cells mixed with matrigel, composed of natural matrix substances that provide a basement membrane structure for adherent cells, were inoculated into mice vaccinated with an efficacious vaccine to the E7 oncoprotein or a vaccine to a control antigen. The tumor cells remained within the solidified gel and recruited a cellular infiltrate that could readily be analyzed upon removal of the gelatinous mass containing progressing or regressing tumors. The results show that tumors recruit activated CD8(+) T cells regardless of their antigen specificity. In regressing tumors expressing an appropriate target antigen for the vaccine-induced CD8(+) T cells, a strong increase of the tumor antigen-specific T cell population was observed over time. Progressing tumors that lacked the target antigen for the activated CD8(+) T cell population did not show this selective enrichment.
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