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Afroze SH, Sloan J, Osuji GAC, Drever N, Pilkinton K, Zawieja DC, Kuehl TJ, Nasir Uddin M. Cinobufotalin impedes Sw.71 cytotrophoblast cell line function via cell cycle arrest and apoptotic signaling. Mol Cell Biochem 2016; 422:189-196. [PMID: 27699589 DOI: 10.1007/s11010-016-2820-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/08/2016] [Indexed: 10/20/2022]
Abstract
Preeclampsia (preE) is a hypertensive disorder of pregnancy. Cardiotonic steroids (CTS) are endogenous inhibitors of Na+/K+ ATPase, and at least one CTS, marinobufagenin (MBG), is elevated in a rat model of preE prior to the development of the syndrome. MBG and ouabain impair cytotrophoblast (CTB) cell function, which is critical for placental development. We evaluated the effect of a CTS, cinobufotalin (CINO), on CTB cell function in vitro. CINO at ≥1 nM inhibited CTB cell proliferation, migration, and invasion (p < 0.05), but had no effect on cell viability. There was a higher (p < 0.05) percentage of G0/G1 phase cells in groups treated with CINO at ≥1 nM. CINO caused an increase in stress signaling p38 MAPK and a positive annexin-V staining in CTB cells, indicating the activation of apoptotic signaling. However, the CINO-induced apoptotic signaling was prevented by p38 inhibition. These data demonstrate that CINO impairs CTB cell function via cell cycle arrest and apoptotic signaling.
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Affiliation(s)
- Syeda H Afroze
- Department of Medical Physiology, Texas A&M Health Science Center College of Medicine, Temple, TX, USA
| | - Jenna Sloan
- Department of Obstetrics and Gynecology, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Scott & White Hospital (Building 1), Room #352, 2401 South 31st Street, Temple, TX, 76508, USA
| | - Grace-Ann C Osuji
- Department of Clinical Pathology, Baylor Scott & White Health, Temple, TX, USA
| | - Nathan Drever
- Department of Obstetrics and Gynecology, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Scott & White Hospital (Building 1), Room #352, 2401 South 31st Street, Temple, TX, 76508, USA
| | - Kimberly Pilkinton
- Department of Obstetrics and Gynecology, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Scott & White Hospital (Building 1), Room #352, 2401 South 31st Street, Temple, TX, 76508, USA
| | - David C Zawieja
- Department of Medical Physiology, Texas A&M Health Science Center College of Medicine, Temple, TX, USA
| | - Thomas J Kuehl
- Department of Obstetrics and Gynecology, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Scott & White Hospital (Building 1), Room #352, 2401 South 31st Street, Temple, TX, 76508, USA
- Department of Pediatrics, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Temple, TX, USA
| | - M Nasir Uddin
- Department of Obstetrics and Gynecology, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Scott & White Hospital (Building 1), Room #352, 2401 South 31st Street, Temple, TX, 76508, USA.
- Department of Pediatrics, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Temple, TX, USA.
- Department of Internal Medicine, Baylor Scott & White Health/Texas A&M Health Science Center College of Medicine, Temple, TX, USA.
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