Semin Reprod Med 2008; 26(6): 500-514
DOI: 10.1055/s-0028-1096130
© Thieme Medical Publishers

The Expression and Potential Regulatory Function of MicroRNAs in the Pathogenesis of Leiomyoma

Xiaoping Luo1 , 3 , Nasser Chegini2 , 3
  • 1Research Assistant Professor
  • 2Professor
  • 3Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Florida, Gainesville, Florida
Further Information

Publication History

Publication Date:
24 October 2008 (online)


Leiomyomas are benign uterine tumors considered to arise from transformation of myometrial cells. What initiates the conversion of myometrial cells into leiomyoma is unknown, however cytogenetic analysis often shows occurrence of nonrandom chromosomal abnormalities that may account for their establishment. It is clear that ovarian steroids are essential for leiomyoma growth, and local expression of many autocrine/paracrine mediators serving as key regulators of cell-cycle progression, cellular hypertrophy, extracellular matrix accumulation, and apoptosis appear to play central roles in this capacity. However, the stability of the expression of these genes represents the hallmarks of leiomyoma establishment, growth, and regression. With the emergence of microRNA (miRNA) as a key regulator of gene expression stability, in this review we present evidence for the expression and potential regulatory functions on miRNAs in leiomyoma with particular emphasis on the expression of their selective target genes whose products influence various cellular activities critical to pathogenesis of leiomyomas.


Xiaoping Luo, M.D. 

Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology

University of Florida, Gainesville, FL 32610

Email: [email protected]