Memy I: a novel murine model for uterine leiomyoma using adenovirus-enhanced human fibroid explants in severe combined immune deficiency mice.
OBJECTIVE
This study was undertaken to develop a representative murine model for human leiomyoma.


METHODS
Human fibroid tumor tissues were cut into small pieces and treated with medium alone, adenoviral-beta-galactosidase, adenoviral-vascular endothelial growth factor-A, adenoviral-cyclooxygenase-2, or both adenoviral-vascular endothelial growth factor-A and adenoviral- cyclooxygenase-2. Tissue pieces were inserted subcutaneously in the flank of each severe combined immunodeficient mouse. The developed lesion was measured twice per week. Xenograft tissues were harvested after 30 days and analyzed.


RESULTS
Tissue pieces transfected with both adenoviral-cyclooxygenase-2 and adenoviral-vascular endothelial growth factor-A continued to grow up to 30 days postimplantation. The number of proliferating and apoptotic cells, as well as the expression of smooth muscle actin, desmin, vimentin, estrogen receptors, and progesterone receptors was similar between retrieved grafts from that group and the original patient tissue. Furthermore, hematoxylin and eosin and Masson's Trichrome stains confirmed this similarity.


CONCLUSIONS
Human uterine leiomyoma xenografts, pretreated with both adenoviral- cyclooxygenase-2 and adenoviral-vascular endothelial growth factor-A and implanted subcutaneously in severe combined immunodeficient mice, represent a novel model for human uterine leiomyoma.
Hassan
Memy H
MH
Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA.
Eyzaguirre
Eduardo
E
Arafa
Hossam M M
HM
Hamada
Farid M A
FM
Salama
Salama A
SA
Al-Hendy
Ayman
A
D000256:Adenoviridae / Q000235:genetics / Q000378:metabolism; D000328:Adult; D000818:Animals; D017209:Apoptosis; D049109:Cell Proliferation; D003094:Collagen / Q000096:biosynthesis; D051546:Cyclooxygenase 2 / Q000378:metabolism; D004195:Disease Models, Animal; D005260:Female; D005822:Genetic Vectors; D006801:Humans; D007889:Leiomyoma / Q000378:metabolism; D051379:Mice; D016513:Mice, SCID; D009385:Neoplastic Processes; D009389:Neovascularization, Pathologic; D014162:Transfection; D014183:Transplantation, Heterologous; D014594:Uterine Neoplasms / Q000378:metabolism; D042461:Vascular Endothelial Growth Factor A / Q000378:metabolism; D001616:beta-Galactosidase / Q000378:metabolism
D042461:Vascular Endothelial Growth Factor A; D003094:Collagen; D051546:Cyclooxygenase 2; D001616:beta-Galactosidase