Regulatable atrial natriuretic peptide gene therapy for hypertension

Kurt J. Schillinger, Sophia Y. Tsai, George Taffet, Anilkumar K. Reddy, Ali J. Marian, Mark L. Entman, Kazuhiro Oka, Lawrence Chan, Bert W. O'Malley

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

Hypertension (HTN) is a disease that begins with dysfunctional renal-sodium excretion and progresses to a syndrome of highly elevated systolic, diastolic, and mean arterial pressures. Inadequacies in the therapy of HTN have led to the investigation of the gene therapy of this disease by using systemic overproduction of vasodilatory peptides, such as atrial natriuretic peptide (ANP). However, gene-therapy approaches to HTN using ANP are limited by the need for long-term ANP gene expression and, most important, control of ANP gene expression. Here, we introduce a helper-dependent adenoviral vector carrying the mifepristone (Mfp)-inducible gene-regulatory system to control in vivo ANP expression. In the BPH/2 mouse model of HTN, Mfp-inducible ANP expression was seen for a period of > 120 days after administration of vector. Physiological effects of ANP, including decreased systolic blood pressure, increased urinary cGMP output, and decreases in heart weight as a percentage of body weight were also under the control of Mfp. Given these capabilities, this vector represents a paradigm for the gene therapy of HTN.

Original languageEnglish (US)
Pages (from-to)13789-13794
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume102
Issue number39
DOIs
StatePublished - Sep 27 2005

Keywords

  • Adenovirus
  • Mifepristone-inducible

ASJC Scopus subject areas

  • Genetics
  • General

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