相关实验视频
Updated: Jun 24, 2026

12:44
The In ovo CAM-assay as a Xenograft Model for Sarcoma
Published on: July 17, 2013
26.2K
Ti Chondrosarcoma organoids ket mangipalgak ti SHH pathway activation a pinarnuay babaen ti PTCH1 ken BCOR a
Haruna Takami1,2, Keiichi Yoshida3, Yukiko Matsuoka3
1Department of Musculoskeletal Oncology Service, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Scientific reports
|December 19, 2025
概括
我们开发了患者衍生有机体 (PDO) 模型,用于罕见的骨癌 - - 软骨肉瘤. 这些模型准确地反映了患者的瘤,并显示了测试像vismodegib.ib.这样的向疗法的前景.
科学领域:
- 在瘤学瘤学.
- 再生医学是一种再生医学.
- 分子生物学分子生物学
背景情况:
- 软骨肉瘤是第二个最常见的恶性骨瘤.
- 它对常规化疗和放射治疗表现出耐药性.
- 有限有效的治疗选择需要新的临床前模型.
研究的目的:
- 建立患者衍生有机体 (PDO) 模型用于冠状骨肉瘤.
- 为了验证这些PDO模型来总结瘤特征.
- 评估它们在药物反应和分子机制研究中的有用性.
主要方法:
- 冠状瘤样本被用于通过空气液体接口方法创建PDO.
- 器官在体外扩展,并为验证而移植到小鼠体内.
- 进行了组织学,遗传学分析 (全外组测序) 和药物敏感性测试.
主要成果:
- 成功建立了两条PDO线,保存了父母瘤组织学和遗传学.
- 基因组分析确定了PTCH1和BCOR突变,表明了Sonic Hedgehog (SHH) 路径的激活.
- 维斯莫迪吉布在体外表现出显著的抗瘤活性,证实了途径依赖.
结论:
- 建立了第一个PDO模型,忠实地回顾瘤特征.
- 这些模型作为一个有价值的临床前平台,以了解骨肉瘤的发病过程.
- 它们有助于为这种具有挑战性的癌症制定有针对性的治疗策略.
相关概念视频
Hedgehog Signaling Pathway
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
mTOR Signaling and Cancer Progression
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...
PI3K/mTOR/AKT Signaling Pathway
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a rapamycin-insensitive companion...

