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Isolation and characterization of a mesenchyme associated antigen from dimethylbenzanthracene induced rat
Abstract:
Using an antiserum directed against human neurospecific antigen and the indirect immunofluorescence technique, we have obtained evidence for the presence of a mesenchyme associated cross-reacting antigen (MAA) in the dimethylbenzanthracene induced fibrosarcoma of the rat. This antigen has been purified from this tumor and compared with the antigen associated with the human nervous system and that associated with the nervous system of the rat. An anti-rat MAA antiserum has been obtained. It has cytotoxic activity against cultured fibrosarcoma cells as measured by release of radioactivity. This antigen can be considered as a marker of fibrosarcomas.
Insights
Researchers identified a mesenchyme associated cross-reacting antigen (MAA) in rat fibrosarcomas. This novel antigen shows potential as a specific marker for fibrosarcoma tumors.
Area of Science:
- Immunology
- Oncology
- Biochemistry
Background:
- Neurospecific antigens are typically found in the nervous system.
- Tumor-associated antigens can serve as diagnostic or therapeutic targets.
- Mesenchyme-associated cross-reacting antigen (MAA) has been investigated in various contexts.
Purpose of the Study:
- To investigate the presence of MAA in chemically induced rat fibrosarcomas.
- To characterize MAA isolated from fibrosarcoma.
- To evaluate the potential of MAA as a fibrosarcoma marker.
Main Methods:
- Indirect immunofluorescence technique using antiserum against human neurospecific antigen.
- Antigen purification from dimethylbenzanthracene-induced rat fibrosarcoma.
- Generation of anti-rat MAA antiserum and assessment of cytotoxic activity against fibrosarcoma cells.
Main Results:
- Evidence for MAA presence in rat fibrosarcoma was obtained.
- MAA was purified and compared to nervous system antigens.
- An anti-rat MAA antiserum demonstrated cytotoxic activity against cultured fibrosarcoma cells.
Conclusions:
- Mesenchyme associated cross-reacting antigen (MAA) is present in rat fibrosarcomas.
- MAA exhibits cytotoxic activity when targeted by specific antiserum.
- MAA can be considered a potential marker for fibrosarcomas.