Regulation of mitochondrial bioenergetic function by hydrogen sulfide. Part II Pathophysiological and therapeutic aspects

Katalin Modis, Eelke M. Bos, Enrico Calzia, Harry Van Goor, Ciro Coletta, Andreas Papapetropoulos, Mark Hellmich, Peter Radermacher, Frédéric Bouillaud, Csaba Szabo

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Emerging work demonstrates the dual regulation of mitochondrial function by hydrogen sulfide (H2S), including, at lower concentrations, a stimulatory effect as an electron donor, and, at higher concentrations, an inhibitory effect on cytochrome C oxidase. In the current article, we overview the pathophysiological and therapeutic aspects of these processes. During cellular hypoxia/acidosis, the inhibitory effect of H2S on complex IV is enhanced, which may shift the balance of H2S from protective to deleterious. Several pathophysiological conditions are associated with an overproduction of H2S (e.g. sepsis), while in other disease states H2S levels and H2S bioavailability are reduced and its therapeutic replacement is warranted (e.g. diabetic vascular complications). Moreover, recent studies demonstrate that colorectal cancer cells up-regulate the H2S-producing enzyme cystathionine β-synthase (CBS), and utilize its product, H2S, as a metabolic fuel and tumour-cell survival factor; pharmacological CBS inhibition or genetic CBS silencing suppresses cancer cell bioenergetics and suppresses cell proliferation and cell chemotaxis. In the last chapter of the current article, we overview the field of H2S-induced therapeutic 'suspended animation', a concept in which a temporary pharmacological reduction in cell metabolism is achieved, producing a decreased oxygen demand for the experimental therapy of critical illness and/or organ transplantation.

Original languageEnglish (US)
Pages (from-to)2123-2146
Number of pages24
JournalBritish Journal of Pharmacology
Volume171
Issue number8
DOIs
StatePublished - 2014

Fingerprint

Hydrogen Sulfide
Energy Metabolism
Cystathionine
Pharmacology
Diabetic Angiopathies
Cell Hypoxia
Investigational Therapies
Organ Transplantation
Electron Transport Complex IV
Chemotaxis
Therapeutics
Acidosis
Critical Illness
Biological Availability
Colorectal Neoplasms
Neoplasms
Cell Survival
Sepsis
Up-Regulation
Cell Proliferation

Keywords

  • 3-mercaptopyruvate sulfurtransferase
  • bioenergetics
  • blood vessels
  • cysteine
  • free radicals
  • gasotransmitters
  • ischaemia
  • mitochondrial electron transport
  • nitric oxide
  • shock
  • superoxide
  • suspended animation

ASJC Scopus subject areas

  • Pharmacology
  • Medicine(all)

Cite this

Regulation of mitochondrial bioenergetic function by hydrogen sulfide. Part II Pathophysiological and therapeutic aspects. / Modis, Katalin; Bos, Eelke M.; Calzia, Enrico; Van Goor, Harry; Coletta, Ciro; Papapetropoulos, Andreas; Hellmich, Mark; Radermacher, Peter; Bouillaud, Frédéric; Szabo, Csaba.

In: British Journal of Pharmacology, Vol. 171, No. 8, 2014, p. 2123-2146.

Research output: Contribution to journalArticle

Modis, Katalin ; Bos, Eelke M. ; Calzia, Enrico ; Van Goor, Harry ; Coletta, Ciro ; Papapetropoulos, Andreas ; Hellmich, Mark ; Radermacher, Peter ; Bouillaud, Frédéric ; Szabo, Csaba. / Regulation of mitochondrial bioenergetic function by hydrogen sulfide. Part II Pathophysiological and therapeutic aspects. In: British Journal of Pharmacology. 2014 ; Vol. 171, No. 8. pp. 2123-2146.
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