Leptin effects on the regenerative capacity of human periodontal cells

Nokhbehsaim, Marjan; Keser, Sema; Nogueira, Andressa Vilas Boas; Jäger, Andreas; Jepsen, Søren; Cirelli, Joni Augusto; Bourauel, Christoph; Eick, Sigrun; Deschner, James (2014). Leptin effects on the regenerative capacity of human periodontal cells. International journal of endocrinology, 2014, p. 180304. Hindawi 10.1155/2014/180304

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Obesity is increasing throughout the globe and characterized by excess adipose tissue, which represents a complex endocrine organ. Adipose tissue secrets bioactive molecules called adipokines, which act at endocrine, paracrine, and autocrine levels. Obesity has recently been shown to be associated with periodontitis, a disease characterized by the irreversible destruction of the tooth-supporting tissues, that is, periodontium, and also with compromised periodontal healing. Although the underlying mechanisms for these associations are not clear yet, increased levels of proinflammatory adipokines, such as leptin, as found in obese individuals, might be a critical pathomechanistic link. The objective of this study was to examine the impact of leptin on the regenerative capacity of human periodontal ligament (PDL) cells and also to study the local leptin production by these cells. Leptin caused a significant downregulation of growth (TGFβ1, and VEGFA) and transcription (RUNX2) factors as well as matrix molecules (collagen, and periostin) and inhibited SMAD signaling under regenerative conditions. Moreover, the local expression of leptin and its full-length receptor was significantly downregulated by inflammatory, microbial, and biomechanical signals. This study demonstrates that the hormone leptin negatively interferes with the regenerative capacity of PDL cells, suggesting leptin as a pathomechanistic link between obesity and compromised periodontal healing.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology

UniBE Contributor:

Eick, Sigrun

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1687-8337

Publisher:

Hindawi

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

19 Jan 2015 16:08

Last Modified:

25 Jan 2017 12:15

Publisher DOI:

10.1155/2014/180304

PubMed ID:

25136363

BORIS DOI:

10.7892/boris.61666

URI:

https://boris.unibe.ch/id/eprint/61666

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