相关实验视频
Updated: Feb 10, 2026

09:58
Lipidomics and Transcriptomics in Neurological Diseases
Published on: March 18, 2022
4.0K
谷氨胺支持人体细胞巨乳病毒诱导的脂质组重塑通过减少性碳氧化
bioRxiv : the preprint server for biology
|February 9, 2026
概括
人类细胞巨乳病毒 (HCMV) 感染利用谷氨酸作为脂质合成的碳来源,主要通过还原性碳氧化. 这种新陈代谢重编程通过重塑细胞的脂质组来支持病毒复制.
科学领域:
- 病毒学 病毒学
- 细胞的新陈代谢
- 生物化学 生物化学
背景情况:
- 人类细胞巨乳病毒 (HCMV) 感染需要显著的脂质合成来复制,这涉及对宿主细胞的脂质组进行重塑.
- HCMV感染增加了葡萄糖和酸盐的利用量,用于脂质生成,但其他碳来源仍未得到研究.
研究的目的:
- 在HCMV感染期间识别脂质生成的替代碳来源.
- 阐明参与使用谷氨胺用于HCMV感染细胞中的脂质合成的代谢途径.
- 在生理营养条件下评估谷氨胺对脂质生成的贡献.
主要方法:
- 使用13C标记的谷氨来追踪碳流入脂质的代谢追踪.
- 在受感染细胞中分析脂质组成 (脂,中性脂质).
- 在葡萄糖和谷氨酸胺的不同生理度下对脂质生成的研究.
主要成果:
- 谷氨酸在HCMV感染期间作为脂肪酸和脂质合成的重要碳来源.
- HCMV感染通过还原性炭化促进了谷氨胺转化为酸盐,将碳转化为脂肪酸合成.
- 从谷氨胺中约有30%的碳通过额外的代谢途径促进脂肪酸合成.
- 葡萄糖和谷氨酸的生理水平足以支持HCMV诱导的脂质发生,尽管病毒产量减少.
结论:
- 谷氨酸是脂质合成的关键代谢基质,支持HCMV复制.
- 由HCMV诱导的还原性碳氧化是引导谷氨酸碳素到脂质生成的关键机制.
- 了解这些代谢适应可以了解宿主-病原体相互作用和潜在的治疗点.
相关概念视频
Carboxylic Acids to Primary Alcohols: Hydride Reduction
5.1K
Carboxylic acids, upon reaction with strong reducing agents such as lithium aluminum hydride followed by hydrolysis, undergo reduction to form primary alcohols.
5.1K
Nucleosome Remodeling
11.2K
Nucleosomes are the basic units of chromatin compaction. Each nucleosome consists of the DNA bound tightly around a histone core, which makes the DNA inaccessible to DNA binding proteins such as DNA polymerase and RNA polymerase. Hence, the fundamental problem is to ensure access to DNA when appropriate, despite the compact and protective chromatin structure.
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
11.2K
Oxidation-Reduction Reactions
75.8K
Oxidation–Reduction Reactions
75.8K
Self-Help Support Groups
360
Self-help support groups are voluntary, community-based organizations that provide a platform for individuals with shared concerns to exchange support, insights, and practical strategies for coping with life challenges. Typically led by group members or paraprofessionals, these groups form a cornerstone of mental health care, especially in reaching populations that are underserved by traditional healthcare systems.
Accessibility and Cost-Effectiveness
One of the primary strengths of self-help...
Accessibility and Cost-Effectiveness
One of the primary strengths of self-help...
360
Bone Remodeling
40.5K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
40.5K
Preparation of Carboxylic Acids: Carboxylation of Grignard Reagents
6.1K
Carboxylic acids can be prepared by the carboxylation of Grignard reagents (RMgX). This method is convenient for converting alkyl (primary, secondary or tertiary), vinyl, benzyl, and aryl halides to carboxylic acids with one additional carbon than the starting RMgX.
6.1K

