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An siRNA-based method for efficient silencing of gene expression in mature brown adipocytes
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Rekke forfattare: 72016 (engelsk)Inngår i: Adipocyte, ISSN 2162-3945, E-ISSN 2162-397X, Vol. 5, nr 2, s. 175-185Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Brown adipose tissue is a promising therapeutic target for opposing obesity, glucose intolerance and insulin resistance. The ability to modulate gene expression in mature brown adipocytes is important to understand brown adipocyte function and delineate novel regulatory mechanisms of non-shivering thermogenesis. The aim of this study was to optimize a lipofection-based small interfering RNA (siRNA) transfection protocol for efficient silencing of gene expression in mature brown adipocytes. We determined that a critical parameter was to deliver the siRNA to mature adipocytes by reverse transfection, i.e. transfection of non-adherent cells. Using this protocol, we effectively knocked down both high-and low-abundance transcripts in a model of mature brown adipocytes (WT-1) as well as in primary mature mouse brown adipocytes. A functional consequence of the knockdown was confirmed by an attenuated increase in uncoupled respiration (thermogenesis) in response to beta-adrenergic stimulation of mature WT-1 brown adipocytes transfected with uncoupling protein 1 siRNA. Efficient gene silencing was also obtained in various mouse and human white adipocyte models (3T3-L1, primary mouse white adipocytes, hMADS) with the ability to undergo browning. In summary, we report an easy and versatile reverse siRNA transfection protocol to achieve specific silencing of gene expression in various models of mature brown and browning-competent white adipocytes, including primary cells.

sted, utgiver, år, opplag, sider
2016. Vol. 5, nr 2, s. 175-185
Emneord [en]
brown adipocytes, human adipocytes, insulin signaling, knockdown, lipolysis, primary adipocytes, reverse transfection, Seahorse, siRNA, Ucp1
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-134202DOI: 10.1080/21623945.2015.1111972ISI: 000381683100008PubMedID: 27386153OAI: oai:DiVA.org:su-134202DiVA, id: diva2:1040227
Tilgjengelig fra: 2016-10-26 Laget: 2016-10-03 Sist oppdatert: 2022-03-23bibliografisk kontrollert

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Cannon, BarbaraNedergaard, Jan

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