Mechanisms of Anti-tumor Action of Corynebacterium Parvum. I. Potentiated Tumor-specific Immunity and Its Therapeutic Limitations
Overview
General Medicine
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The anti-tumor mechanism in mice induced by a subcutaneous injection of syngeneic tumor cells admixed with Corynebacterium parvum was investigated. When mice were implanted in a hind footpad with x 2 1096) tumor cells admixed with 100 microgram C. parvum, the tumor that emerged grew progressively for about 9 d and then underwent progressive and complete regression. It was found that this C. parvum-induced regression was associated with the acquisition of a systemic, T cell-mediated mechanism of immunity to tumor-specific transplantation antigens, which enabled the host to cause the regression of an untreated test tumor growing simultaneously at a distant site. The generation of a C. parvum-potentiated anti-tumor response was dependent on the presence of tumor cells in close association with C. parvum, tumor immunogenicity, and the quantity of tumor antigen in the admixture. The anti-tumor immunity was specific for the tumor in the therapeutic admixture and could be adoptively transferred to normal recipients with Thy-1.2-positive lymphocytes, but not with serum. Complete regression of a distant test tumor by the C. parvum-tumor admixture was limited to tumors below a certain critical size.
Adoptive T Cell Therapy Targeting MAGE-A4.
Chandora K, Chandora A, Saeed A, Cavalcante L Cancers (Basel). 2025; 17(3).
PMID: 39941782 PMC: 11815873. DOI: 10.3390/cancers17030413.
Tumor Profiling at the Service of Cancer Therapy.
Fernandez-Rozadilla C, Simoes A, LLeonart M, Carnero A, Carracedo A Front Oncol. 2021; 10:595613.
PMID: 33505911 PMC: 7832432. DOI: 10.3389/fonc.2020.595613.
Talib W, Saleh S PLoS One. 2015; 10(4):e0124384.
PMID: 25919398 PMC: 4412818. DOI: 10.1371/journal.pone.0124384.
Innate NKT lymphocytes confer superior adaptive immunity via tumor-capturing dendritic cells.
Liu K, Idoyaga J, Charalambous A, Fujii S, Bonito A, Mordoh J J Exp Med. 2005; 202(11):1507-16.
PMID: 16330814 PMC: 2213343. DOI: 10.1084/jem.20050956.
Matsutake T, Srivastava P Proc Natl Acad Sci U S A. 2001; 98(7):3992-7.
PMID: 11274422 PMC: 31167. DOI: 10.1073/pnas.071523398.