Dommel, S.* ; Berger, C.* ; Kunath, A.* ; Kern, M.* ; Gericke, M.* ; Kovacs, P.* ; Guiu-Jurado, E.* ; Klöting, N. ; Blüher, M.
The Fabp4-Cre-model is insufficient to study Hoxc9 function in adipose tissue.
Biomedicines 8:184 (2020)
Developmental genes are important regulators of fat distribution and adipose tissue (AT) function. In humans, the expression of homeobox c9 (HOXC9) is significantly higher in subcutaneous compared to omental AT and correlates with body fat mass. To gain more mechanistic insights into the role of Hoxc9in AT, we generated Fabp4-Cre-mediated Hoxc9 knockout mice (ATHoxc9(-/-)). Male and female AT Hoxc9(-/-)mice were studied together with littermate controls both under chow diet (CD) and high-fat diet (HFD) conditions. Under HFD, only male ATHoxc9(-/-)mice gained less body weight and exhibited improved glucose tolerance. In both male and female mice, body weight, as well as the parameters of glucose metabolism and AT function were not significantly different between ATHoxc9(-/-) and littermate control CD fed mice. We found that crossing Hoxc9 floxed mice with Fabp4-Cre mice did not produce a biologically relevant ablation of Hoxc9in AT. However, we hypothesized that even subtle reductions of the generally low AT Hoxc9 expression may cause the leaner and metabolically healthier phenotype of male HFD-challenged AT Hoxc9(-/-)mice. Different models of in vitro adipogenesis revealed that Hoxc9 expression precedes the expression of Fabp4, suggesting that ablation of Hoxc9 expression in AT needs to be achieved by targeting earlier stages of AT development.
Impact Factor
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Times Cited
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Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Developmental Genes ; Adipose Tissue ; Obesity ; Adipocytes; Site-specific Recombination; Glucose-homeostasis; Insulin-resistance; Expression; Brown; Genes; Fat; Adipocytes; Knockout; Obesity
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2020
Prepublished im Jahr
HGF-Berichtsjahr
2020
ISSN (print) / ISBN
2227-9059
e-ISSN
2227-9059
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 8,
Heft: 7,
Seiten: ,
Artikelnummer: 184
Supplement: ,
Reihe
Verlag
MDPI
Verlagsort
Basel, Switzerland
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
Institut(e)
Helmholtz Institute for Metabolism, Obesity and Vascular Research (HI-MAG)
POF Topic(s)
30201 - Metabolic Health
Forschungsfeld(er)
Helmholtz Diabetes Center
PSP-Element(e)
G-506500-001
Förderungen
Copyright
Erfassungsdatum
2020-07-07