The Lymphangioleiomyomatosis Lung Cell and Its Human Cell Models.
Am J Respir Cell Mol Biol
; 58(6): 678-683, 2018 06.
Article
in En
| MEDLINE
| ID: mdl-29406787
ABSTRACT
Lymphangioleiomyomatosis (LAM) is a multisystem disease of women, affecting lungs, kidneys, and lymphatics. It is caused by the proliferation of abnormal smooth muscle-like LAM cells, with mutations and loss of heterozygosity in the TSC1 or, more frequently, TSC2 genes. Isolated pulmonary LAM cells have been difficult to maintain in culture, and most studies of LAM lung cells involve mixtures of TSC2 wild-type and TSC2-null cells. A clonal population of LAM lung cells has not been established, making analysis of the cells challenging. Cell lines have been established from angiomyolipomas, a common manifestation of LAM, and from tumors from patients with TSC. Circulating LAM cells have also been isolated from blood and other body fluids. LAM cells may also be identified in clusters apparently derived from lymphatic vessels. Genetics, patterns of antigen expression, and signaling pathways have been studied in LAM lung tissue and in LAM cell models, although rarely all in the same study. We show here that LAM cells manifest differences in these characteristics, depending on the source investigated, suggesting further studies.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Lymphangioleiomyomatosis
/
Lung Neoplasms
Type of study:
Prognostic_studies
Limits:
Female
/
Humans
Language:
En
Journal:
Am J Respir Cell Mol Biol
Journal subject:
BIOLOGIA MOLECULAR
Year:
2018
Type:
Article