CD38/cADPR Signaling Pathway in Airway Disease: Regulatory Mechanisms

Mediators Inflamm. 2018 Feb 7:2018:8942042. doi: 10.1155/2018/8942042. eCollection 2018.

Abstract

Asthma is an inflammatory disease in which proinflammatory cytokines have a role in inducing abnormalities of airway smooth muscle function and in the development of airway hyperresponsiveness. Inflammatory cytokines alter calcium (Ca2+) signaling and contractility of airway smooth muscle, which results in nonspecific airway hyperresponsiveness to agonists. In this context, Ca2+ regulatory mechanisms in airway smooth muscle and changes in these regulatory mechanisms encompass a major component of airway hyperresponsiveness. Although dynamic Ca2+ regulation is complex, phospholipase C/inositol tris-phosphate (PLC/IP3) and CD38-cyclic ADP-ribose (CD38/cADPR) are two major pathways mediating agonist-induced Ca2+ regulation in airway smooth muscle. Altered CD38 expression or enhanced cyclic ADP-ribosyl cyclase activity associated with CD38 contributes to human pathologies such as asthma, neoplasia, and neuroimmune diseases. This review is focused on investigations on the role of CD38-cyclic ADP-ribose signaling in airway smooth muscle in the context of transcriptional and posttranscriptional regulation of CD38 expression. The specific roles of transcription factors NF-kB and AP-1 in the transcriptional regulation of CD38 expression and of miRNAs miR-140-3p and miR-708 in the posttranscriptional regulation and the underlying mechanisms of such regulation are discussed.

Publication types

  • Review

MeSH terms

  • ADP-ribosyl Cyclase 1 / metabolism*
  • Animals
  • Calcium Signaling / physiology
  • Cyclic ADP-Ribose / metabolism*
  • Humans
  • Respiratory System / metabolism
  • Signal Transduction / physiology

Substances

  • Cyclic ADP-Ribose
  • ADP-ribosyl Cyclase 1