CABLES1 expression is reduced in human subcutaneous adipose tissue in obesity and type 2 diabetes but may not directly impact adipocyte glucose and lipid metabolism

Hetty, Susanne,PhD,1979-Uppsala universitet,Klinisk diabetologi och metabolism,Science for Life Laboratory, SciLifeLab (author)

Cdk5 and Abl enzyme substrate 1 (CABLES1) is a cell cycle regulator that has previously been identified as a candidate gene for obesity-related phenotypes, but little is known about its role in adipose tissue metabolism. In this study, we explore the role of CABLES1 in obesity and type 2 diabetes (T2D) in human subcutaneous adipose tissue (SAT). We performed gene expression analysis of SAT obtained from subjects with and without T2D, and from a second validation cohort consisting of subjects without T2D. We used CRISPR/Cas9 genome editing to perform CABLES1 loss-of-function studies in human primary preadipocytes and assessed them functionally after differentiation. CABLES1 gene expression in SAT was decreased in T2D by almost 25%, and inversely associated with insulin resistance markers and hyperglycaemia. mRNA levels were reduced with increasing BMI and negatively correlated with obesity markers. We found that adipocytes are likely the main CABLES1-expressing cell type in SAT, but CABLES1 depletion in adipocytes caused no phenotypical changes in regards to differentiation, glucose uptake, or expression of key genes of adipocyte function. These findings suggest that CABLES1 gene expression in SAT might be altered in obesity and T2D as a consequence of metabolic dysregulation rather than being a causal factor.

Vranic, MilicaUppsala universitet,Klinisk diabetologi och metabolism(Swepub:uu)milvr380 (author)
Kamble, Prasad G.AstraZeneca R&D, Innovat Strategies & External Liaison, Pharmaceut Technol & Dev, Mölndal, Sweden. (author)
Lundqvist, Martin H.Uppsala universitet,Klinisk diabetologi och metabolism(Swepub:uu)marlu858 (author)
Pereira, Maria J.,1981-Uppsala universitet,Klinisk diabetologi och metabolism(Swepub:uu)marpe927 (author)
Eriksson, JanUppsala universitet,Klinisk diabetologi och metabolism(Swepub:uu)janer909 (author)
Uppsala universitetKlinisk diabetologi och metabolism (creator_code:org_t)

By the author/editor: Hetty, Susanne, ...; Vranic, Milica; Kamble, Prasad G ...; Lundqvist, Marti ...; Pereira, Maria J ...; Eriksson, Jan

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Endocrinology an ...

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