骨肌肉对由骨癌引起的浪费的敏感性
M Esteves1,2, M Duarte2, P A Oliveira3,4
1FP-I3ID, FP-BHS, Escola Superior de Saúde Fernando Pessoa, Porto 4200-450, Portugal.
Experimental oncology
|July 7, 2023
概括
在小鼠中,由癌症引起的肌肉衰竭影响了小腿前和腹膜肌肉. 快速的甘油性肌肉纤维似乎更容易患癌症,显示尺寸减少和纤维化增加.
科学领域:
- 在瘤学瘤学.
- 骨肌肉生理学 骨肌肉生理学
- 癌症生物学 癌症生物学
背景情况:
- 骨肌肉消耗是一种常见的癌症并发症,导致功能障碍和疲劳.
- 关于癌症诱导的肌肉消耗对特定肌肉纤维类型的影响的证据有限.
研究的目的:
- 为了研究尿癌对骨肌组织形态测量和小鼠的原沉积的影响.
- 为了确定受癌症诱导衰竭影响的特定肌肉类型和纤维特征.
主要方法:
- 在小鼠中使用N-基-N-(4-氧基) 氨酸 (BBN) 诱导泌尿瘤.
- 分析了前,足底和隔膜肌肉的横截面积,肌核域和原沉积.
- 组织学染色 (血素和欧,红色皮克罗西里乌斯) 用于分析.
主要成果:
- 暴露于BBN的小鼠出现了尿前新生和新生病变.
- 骨前部的截面面积减少,原沉积增加,核核域更高.
- 在暴露于BBN的小鼠中,隔膜也表现出增加的myonuclear域.
结论:
- 泌尿癌诱导前骨的肌肉消耗,其特征是尺寸减小和纤维化增加.
- 隔膜也受到影响,这表明快速的糖解质肌肉纤维更容易受到癌症引起的衰竭的影响.
- 这些发现突出了癌症对骨肌肉纤维类型的影响.
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