Related Experiment Video
Updated: Jan 26, 2026
Repair of a Critical-sized Calvarial Defect Model Using Adipose-derived Stromal Cells Harvested from Lipoaspirate
Published on: October 31, 2012
Knockdown of slincRAD leads to defective adipose development in vivo
Pei Zhang1, Huicheng Bai2, Jun Li2
1State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China.
Abstract:
The development of adipose tissue is a precisely coordinated cellular process, in which both protein-coding and non-coding genes are involved. To characterize the in vivo function of a novel long non-coding RNA (lncRNAs), loss-of-function assays were performed with slincRAD knockdown mice. Down-regulation of slincRAD expression was found to impair the development of adipose tissue, leading to a slim phenotype for both of the male and female mice. Compared to normal adipocytes, slincRAD knockdown cells had defective differentiation features, such as smaller sizes and decreased lipid production. For elder mice, slincRAD knockdown led to abnormal glucose and lipid metabolism. Therefore, a physiologically important lncRNA was characterized in the development of adipose tissue.
Insights
A novel long non-coding RNA, slincRAD, is crucial for adipose tissue development. Its knockdown impairs adipocyte differentiation, lipid production, and metabolism, leading to a slim phenotype in mice.
Area of Science:
- Molecular Biology
- Genetics
- Metabolic Research
Background:
- Adipose tissue development involves complex gene regulation by both protein-coding and non-coding genes.
- Long non-coding RNAs (lncRNAs) are increasingly recognized for their roles in cellular processes.
- The specific functions of many lncRNAs in adipogenesis remain largely uncharacterized.
Purpose of the Study:
- To investigate the in vivo function of a novel lncRNA, slincRAD, in adipose tissue development.
- To determine the impact of slincRAD down-regulation on adipocyte differentiation and metabolism.
Main Methods:
- Loss-of-function assays were performed using slincRAD knockdown mice.
- Phenotypic analysis of mice with reduced slincRAD expression.
- Assessment of adipocyte differentiation markers and lipid production in knockdown cells.
- Evaluation of glucose and lipid metabolism in elder knockdown mice.
Main Results:
- Down-regulation of slincRAD impaired adipose tissue development, resulting in a slim phenotype in both male and female mice.
- slincRAD knockdown cells exhibited defective differentiation, characterized by smaller cell size and reduced lipid accumulation.
- Elder mice with slincRAD knockdown displayed abnormal glucose and lipid metabolism.
Conclusions:
- slincRAD is a physiologically important lncRNA that plays a critical role in adipose tissue development.
- slincRAD is essential for normal adipocyte differentiation and the maintenance of metabolic homeostasis.
- Targeting slincRAD may offer potential therapeutic strategies for metabolic disorders.
Related Concept Videos
01:23Lumber Defects
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
01:22Phase-lead and Phase-lag Controllers
01:24Time and frequency -Domain Interpretation of Phase-lead Control
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
01:43Sustainable Development
01:15Development of the Lymphatic System
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
01:22Language Development
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...