Abstract
Overexpression of human telomerase reverse transcriptase (hTERT) has facilitated establishing in vitro model systems for biological research. The plasmid containing hTERT gene was stably transfected into ULTR cells, a retroviral transformed human uterine leiomyomatous smooth-muscle cell line. Cells that express hTERT, termed as ULTR-hT, shared the morphological characteristics of the parental proliferative ULTR cells. They expressed a set of smooth-muscle-specific genes and had increased proliferation rate and prolonged lifespan. Quantitative real-time polymerase chain reaction (PCR) analysis revealed a correlation of proliferation rates of ULTR-hT clonal cells with the level of hTERT expression. ULTR-hT cells also preserved expression of estrogen, progesterone, and oxytocin receptor genes, confirming a myometrial phenotype. Expression of angiotensin II receptors and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase isoforms were also preserved. Our finding suggests that ULTR-hT cells can be a useful in vitro model for studying human myometrium differentiation both in pregnancy and pathological growth.
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Chang, B., Myatt, L. & Cui, XL. Loss of Proliferative Capacity in a Retroviral Immortalized Human Uterine Smooth Muscle Cell Line Derived From Leiomyoma Is Restored by hTERT Overexpression. Reprod. Sci. 16, 1062–1071 (2009). https://doi.org/10.1177/1933719109344773
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DOI: https://doi.org/10.1177/1933719109344773