Intermediate and fine filaments of vascular leiomyomas (angiomyoma), leiomyoma and leiomyosarcomas of large veins
- 1 July 1989
- Vol. 97 (7-12), 637-645
- https://doi.org/10.1111/j.1699-0463.1989.tb00455.x
Abstract
The expression of fine and intermediate filaments in 10 cases of leiomyosarcoma originating from a large vein. 9 cases of vascular leiomyoma (angiomyoma) and one case of a leiomyoma originating from the wall of the saphena magna vein was studied immunohistochemically by using 6 different anti-desmin antibodies, one anti-vimentin antibody and 2 antibodies to muscle-specific isoforms of actin. All the benign tumors and all the leiomyosarcomas of a large vein as well as the vein of origin were positively stained for desmin. The staining results obtained using the different anti-desmin antibodies varied considerably, however, and formaldehyde-fixed tissues were apparently inappropriate for some of them. No single anti-desmin antibody produced a positivity in all cases, and the extent and distribution of the positivity varied by being irregular and patchy in the leiomyosarcomas and in the muscle walls of the veins, while the benign tumors generally revealed a more uniform and strong positivity. Antibodies to muscle-specific and smooth muscle-specific actin produced a positive staining in all the benign tumors, as well as all the leiomyosarcomas and the veins from which they originated. A strong and uniform positivity was observed in the benign tumors and muscle walls of the veins, while the positivity in the leiomyosarcomas was more irregular, as it was for desmin. Vimentin was constantly expressed in the benign tumors and in the veins of origin, but only in 5/10 of the leiomyosarcomas. It is concluded from this study that the immunohistochemical demonstration of desmin, utilizing a monoclonal antibody appropriate to the type of fixation used, and muscle specific isoforms of actin, provide strong support to the light-microscopic diagnosis of leiomyosarcoma of venous origin.Keywords
This publication has 27 references indexed in Scilit:
- Alveolar and poorly differentiated rhabdomyosarcomaAPMIS, 1988
- A monoclonal antibody against alpha-smooth muscle actin: a new probe for smooth muscle differentiation.The Journal of cell biology, 1986
- Expression of smooth muscle-specific alpha-isoactin in cultured vascular smooth muscle cells: relationship between growth and cytodifferentiation.The Journal of cell biology, 1986
- A smooth muscle-specific monoclonal antibody recognizes smooth muscle actin isozymes.The Journal of cell biology, 1985
- Antibodies to Intermediate Filament Proteins in the Diagnosis and Classification of Human TumorsUltrastructural Pathology, 1984
- Intermediate filaments in smooth muscle tumoursJournal of Clinical Pathology, 1983
- Intermediate Filaments: A Chemically Heterogeneous, Developmentally Regulated Class of ProteinsAnnual Review of Biochemistry, 1982
- Distribution of vimentin and desmin filaments in smooth muscle tissue of mammalian and avian aortaExperimental Cell Research, 1982
- Heterogeneity of Intermediate Filament Expression in Vascular Smooth Muscle: A Gradient in Desmin Positive Cells from the Rat Aortic Arch to the Level of the Arteria Iliaca CommunisDifferentiation, 1981