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Related Experiment Video

Updated: Mar 14, 2026

Expansion and Adipogenesis Induction of Adipocyte Progenitors from Perivascular Adipose Tissue Isolated by Magnetic Activated Cell Sorting

Expansion and Adipogenesis Induction of Adipocyte Progenitors from Perivascular Adipose Tissue Isolated by Magnetic Activated Cell Sorting

Published on: June 30, 2017

RACK1 is required for adipogenesis.

Qinghua Kong¹, Lan Gao^1,2, Yanfen Niu^1,3

¹State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.

American Journal of Physiology. Cell Physiology

|September 23, 2016

Summary

This summary is machine-generated.

Receptor for activated C kinase 1 (RACK1) is crucial for adipogenesis, the process of fat cell formation. Suppressing RACK1 hinders fat cell differentiation by impacting key signaling pathways.

Keywords:

3T3-L1 PI3K-Akt-mTOR-S6K RACK1 Wnt adipogenesis

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Last Updated: Mar 14, 2026

Expansion and Adipogenesis Induction of Adipocyte Progenitors from Perivascular Adipose Tissue Isolated by Magnetic Activated Cell Sorting

Expansion and Adipogenesis Induction of Adipocyte Progenitors from Perivascular Adipose Tissue Isolated by Magnetic Activated Cell Sorting

Published on: June 30, 2017

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis

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Published on: June 3, 2016

Preparation of Adipose Progenitor Cells from Mouse Epididymal Adipose Tissues

Preparation of Adipose Progenitor Cells from Mouse Epididymal Adipose Tissues

Published on: August 25, 2020

Area of Science:

Molecular Biology
Cell Biology
Metabolic Research

Background:

Adipose tissue is vital for energy balance and metabolic health.
Receptor for activated C kinase 1 (RACK1) is an adaptor protein implicated in various cellular processes and diseases.
The role of RACK1 in adipogenesis (fat cell development) was previously uncharacterized.

Purpose of the Study:

To investigate the role of RACK1 in the differentiation of adipocytes.
To elucidate the molecular mechanisms by which RACK1 influences adipogenesis.

Main Methods:

RACK1 expression was analyzed in 3T3-L1 cells and murine white adipose tissue.
RNA interference (shRNA) was used to knock down RACK1 expression.
Key adipogenic markers (PPAR-γ, C/EBP-β) and signaling pathways (Wnt/β-catenin, PI3K-Akt-mTOR-S6K) were assessed.

Main Results:

RACK1 knockdown significantly inhibited adipogenesis in 3T3-L1 cells.
RACK1 depletion reduced the expression of key adipogenic transcription factors, PPAR-γ and C/EBP-β.
Knockdown of RACK1 led to increased β-catenin levels, activating Wnt signaling, and suppressed the PI3K-Akt-mTOR-S6K pathway.

Conclusions:

RACK1 is a novel and essential factor for successful adipocyte differentiation.
RACK1 regulates adipogenesis through the modulation of Wnt/β-catenin and PI3K-Akt-mTOR-S6K signaling pathways.
These findings highlight RACK1 as a potential therapeutic target in metabolic diseases related to adipose tissue dysfunction.