Effect of P15E related retroviral material isolated from head and neck carcinomas on delayed type hypersensitivity skin reactions in mice
Open Access
- 1 June 1987
- journal article
- Published by Wiley in The Laryngoscope
- Vol. 97 (6), 710-712
- https://doi.org/10.1288/00005537-198706000-00012
Abstract
Low molecular weight factors, derived from head and neck carcinomas (H/N ca LMWFs), exert a serious inhibitory effect on monocyte chemotaxis both in vivo and in vitro. This effect can be neutralized by the treatment of the factors with three different monoclonal antibodies to P15E, one of the structural envelope proteins of murine leukemia virus (MuLV). In this study, we report the effect of the H/N ca LMWFs on the delayed type hypersensitivity responsiveness in mice: the factors significantly inhibited the 24 hour DNFB skin reaction. These effects of the H/N ca LMWFs were again neutralizable by antibodies to P15E. Additional experiments showed that the H/N ca LMWFs had equal suppressive effects on toxic skin reactions to croton oil, and this indicates that the P15E-like H/N ca LMWFs exert their effect by aspecific mechanisms.Keywords
This publication has 14 references indexed in Scilit:
- Immunosuppressive Retroviral P15E-Related Factors in Head and Neck CarcinomasJAMA Otolaryngology–Head & Neck Surgery, 1986
- Defective Monocyte Chemotaxis in Patients With Head and Neck Cancer: Restoration After TreatmentJAMA Otolaryngology–Head & Neck Surgery, 1986
- Mononuclear phagocyte function in head and neck cancer: Depression of murine macrophage accumulation by low molecular weight factors derived from head and neck carcinomasThe Laryngoscope, 1984
- Mixing two monoclonal antibodies yields enhanced affinity for antigen.The Journal of Immunology, 1982
- Inhibitors of monocyte responses to chemotaxins are present in human cancerous effusions and react with monoclonal antibodies to the P15(E) structural protein of retroviruses.JCI Insight, 1981
- CANCER AND SUBVERSION OF HOST DEFENCESImmunology & Cell Biology, 1981
- Macrophages and Resistance to Tumors. IV. Influence of Age on Susceptibility of Mice to Anti-inflammatory and Antimacrophage Effects of Tumor Cell Products23JNCI Journal of the National Cancer Institute, 1980
- Abnormal Monocyte Chemotaxis in Patients With Breast Cancer: Evidence for a Tumor-Mediated Effect2JNCI Journal of the National Cancer Institute, 1978
- Antiinflammatory Effects of Murine Malignant CellsProceedings of the National Academy of Sciences, 1974
- Macrophage content of tumours in relation to metastatic spread and host immune reactionNature, 1974