相关实验视频
Updated: Jan 28, 2026

08:43
Orthotopic Mouse Model of Colorectal Cancer
Published on: December 4, 2007
47.1K
甘酸通过Nrf2/HO-1/GPX4通路引起线粒体功能障碍,以抑制结直肠癌的进展
Yan Wei1, Shulin Dai1, Dongyun Zhang1
1College of Basic Medicine, Nanyang Medical College, Nanyang, Henan Province, PR China.
Histology and histopathology
|January 27, 2026
概括
甘酸 (CA) 通过诱导亡和线粒体功能障碍,有效地抑制结直肠癌 (CRC) 的进展. 这种抗瘤活性源于CA阻断Nrf2/HO-1/GPX4通路,为CRC治疗提供了潜力.
科学领域:
- 生物化学 生物化学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 甘酸 (CA) 是一种具有已证明抗瘤功能的甘丁类比物.
- 结肠直肠癌 (CRC) 仍然是一个重大的全球健康挑战,需要新的治疗策略.
研究的目的:
- 为了研究沙酸 (CA) 对结直肠癌 (CRC) 的抗瘤活性.
- 阐明CA在CRC中的抗瘤作用的潜在分子机制.
主要方法:
- 通过各种测定 (CCK-8,殖民地形成,Transwell,LDH) 评估了CA对正常和CRC细胞活力,增殖,迁移和入侵的影响.
- 通过流细胞计和素-AM/PI染色来评估亡.
- 分析了线粒体功能 (超结构,膜潜力,ATP,mtDNA) 和关键蛋白质表达 (Nrf2/HO-1/GPX4通路,线粒体损伤标志物) 使用RT-qPCR,西式涂抹和体内异种移植模型.
主要成果:
- CA显著降低了CRC细胞活力,殖民地形成,迁移和入侵,同时诱导细胞亡,而不会影响正常细胞活力.
- CA破坏了线粒体形态,降低了膜潜力,ATP生产和mtDNA度,Mito-TEMPO扭转了这些影响.
- CA抑制了Nrf2 / HO-1 / GPX4通路,导致线粒体功能障碍和亡,这被Nrf2激动剂TBHQ减轻了. 瘤生长在体内被抑制.
结论:
- 甘酸 (CA) 通过诱导线粒体功能障碍和亡,对结直肠癌 (CRC) 具有强大的抗瘤作用.
- 该机制涉及Nrf2/HO-1/GPX4通路的阻塞,突出了CA在治疗CRC方面的治疗潜力.
相关概念视频
mTOR Signaling and Cancer Progression
4.7K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
4.7K
Acidity of 1-Alkynes
11.1K
The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
11.1K
Amino Acid Biosynthetic Pathways
1.2K
Amino acid biosynthesis is essential for cell growth, protein synthesis, and metabolic regulation. Cells generate essential and non-essential amino acids from metabolic intermediates to sustain vital biological functions. These intermediates originate from key metabolic pathways: glycolysis, the tricarboxylic acid (TCA) cycle, and the pentose phosphate pathway. Important precursors include α-ketoglutarate, pyruvate, oxaloacetate, phosphoenolpyruvate, and erythrose-4-phosphate, which...
1.2K
Feedback Inhibition
57.1K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
57.1K
Animal Mitochondrial Genetics
9.2K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.2K
C4 Pathway and CAM
49.1K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
49.1K

