Modzelewska B, Jóźwik M, Kleszczewski T, Sulkowski S, Jóźwik M. Myometrial Responses to Beta-Adrenoceptor Antagonists in Gynecological Malignancies.
Gynecol Obstet Invest 2021;
86:162-169. [PMID:
33640886 DOI:
10.1159/000513718]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 12/11/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE
The aim of the study was to determine the influence of beta-adrenoceptor (ADRB) antagonists on contractile activity of the nonpregnant human uterus in patients affected by gynecological malignancies.
DESIGN
This was a controlled and prospective ex vivo study.
SETTING
The work was conducted as a collaboration between 4 academic departments.
MATERIALS AND METHODS
Myometrial specimens were obtained from women undergoing hysterectomy for benign gynecological disorders (reference group; N = 15), and ovarian (N = 15), endometrial (N = 15), synchronous ovarian-endometrial (N = 3), and cervical cancer (N = 10). Contractions of myometrial strips in an organ bath before and after applications of ADRB antagonists (propranolol, bupranolol, SR 59230A, and butoxamine) were studied under isometric conditions.
RESULTS
Propranolol and bupranolol attenuated contractions in the endometrial and cervical cancer groups similar to that in the reference group (all p < 0.05), whereas opposite effects were observed in the ovarian and synchronous ovarian-endometrial cancer groups. SR 59230A and butoxamine significantly increased contractions in the ovarian cancer group (both p < 0.001).
LIMITATIONS
These results require now to be placed into a firm clinical context.
CONCLUSIONS
Our study indicates that ovarian cancer considerably alters contractile activity of the nonpregnant human uterus in response to ADRB antagonists. This suggests a pathogenetic role of beta-adrenergic pathways in this malignancy. Furthermore, propranolol and bupranolol substantially influence spontaneous uterine contractility.
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