GHRH Antagonists Protect against Hydrogen Peroxide-Induced Breakdown of Brain Microvascular Endothelium Integrity

Nektarios Barabutis, Mohammad S. Akhter, Mohammad A. Uddin, Khadeja Tul Kubra, Andrew V. Schally

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Growth hormone releasing hormone is a hypothalamic neuropeptide, which regulates the release of growth hormone from the anterior pituitary gland. Growth hormone releasing hormone antagonists are anticancer agents, associated with strong anti-inflammatory activities. In the present study, we investigated the effects of the GHRH antagonist MIA-602 in the integrity of the brain microvascular endothelium in vitro. Our observations suggest that MIA-602 protects against the H 2 O 2 -induced breakdown of the brain endothelium and enhances its integrity by inducing P53, deactivating cofilin, and suppressing the RhoA inflammatory pathway. Thus, GHRH antagonists may offer an exciting possibility for the treatment of pathologies related to the blood brain barrier dysfunction, including the Parkinson's and Alzheimer's diseases.

Original languageEnglish (US)
Pages (from-to)336-339
Number of pages4
JournalHormone and Metabolic Research
Volume52
Issue number5
DOIs
StatePublished - May 1 2020

Keywords

  • P53
  • growth hormone
  • inflammation

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Biochemistry
  • Endocrinology
  • Clinical Biochemistry
  • Biochemistry, medical

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