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JoVE Encyclopedia of Experiments
Cancer Research
腹膜腔内膜卵巢癌转移建模:一种建立腹膜内膜体外 3D 模型的方法
腹膜腔内膜卵巢癌转移建模:一种建立腹膜内膜体外 3D 模型的方法
Encyclopedia of Experiments
Cancer Research
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Encyclopedia of Experiments Cancer Research
Modeling Ovarian Cancer Metastasis in Peritoneal Cavity Lining: A Method To Establish an In Vitro 3D Model of the Peritoneal Lining

腹膜腔内膜卵巢癌转移建模:一种建立腹膜内膜体外 3D 模型的方法

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03:34 min
July 8, 2025
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Please note that some of the translations on this page are AI generated. Click here for the English version.

Transcript

腹膜或腹腔内膜构成支撑在一层纤维血管结缔组织上的腹膜间皮细胞。转移性卵巢癌细胞粘附在腹膜内壁上并增殖成癌性生长。

要模拟卵巢癌转移,首先将人成纤维细胞放入锥形管中,并将它们与胶原蛋白(一种细胞外基质蛋白)混合。将悬浮液铺在培养皿上。孵育以促进胶原基质凝固以嵌入成纤维细胞并模拟腹膜的结缔组织。

接下来,在成纤维细胞-胶原层上添加间皮细胞悬浮液。孵育板,使间皮细胞粘附并在成纤维细胞-胶原层表面形成单层。这种 3D 器官型培养物现在模仿体内腹膜内壁的组成和结构。

最后,用卵巢癌细胞接种这种器官型培养物并孵育所需的时间。卵巢癌细胞释放某些改变间皮层的信号分子,增强癌细胞的粘附和侵袭,模仿体内转移条件。

要从培养物中释放正常的大网膜成纤维细胞,请用 10 毫升 PBS 冲洗培养瓶,然后用 3 毫升胰蛋白酶冲洗不超过 5 分钟。当细胞分离时,用至少三倍体积的完全生长培养基中和胰蛋白酶,并将细胞转移到50毫升锥形管中。旋转细胞并将沉淀重悬于 5 毫升完全生长培养基中。然后,计数细胞并将它们稀释至每100微升全生长培养基浓度的2至4倍10至第三成纤维细胞。

接下来,将每 100 微升 0.5 微克大鼠尾胶原蛋白 I 添加到细胞中,并将每孔 100 微升细胞接种到黑色、透明底部 96 孔板中。然后,将板转移到细胞培养箱中至少 4 小时或直到细胞粘附在板表面。当正常的大网膜成纤维细胞沉降时,将HPMC从其培养瓶中分离出来,并将这些细胞稀释至每50微升全生长培养基1至2倍10至第四HPMC。

然后,将每孔 50 微升 HPMC 添加到附着的正常大网膜成纤维细胞中,并在实验使用前将板放回细胞培养箱至少 18 小时。第二天,将 3D 器官型共培养物与表达 GFP 的卵巢癌细胞从80%至90%的汇合培养物中以适当的稀释度接种,以进行所需的下游测定。

Key Terms and Definitions

  • Peritoneal Cavity - The space within the abdomen housing vital organs.
  • Peritoneum 3D Model - A simulated 3-dimensional structure of the peritoneum.
  • Peritoneal Lining Cancer - A cancer genetic mutation in the peritoneal lining.
  • Thermo MaxQ 4450 Incubator Shaker - Equipment used for incubating biological samples.
  • Ovarian Cancer Metastasis to Peritoneum - Spreading of ovarian cancer to peritoneal cavity.

Scientific Background

  • Peritoneal cavity is the abdominal space housing organs (e.g., peritoneal cavity).
  • A model is used to replicate the 3D structure of the peritoneum (e.g., peritoneum 3D model).
  • Cancer can occur in the peritoneal lining due to genetic mutation (e.g., peritoneal lining cancer).
  • The MaxQ 4450 facilitates incubation of biological samples in tests (e.g., Thermo MaxQ 4450 Incubator Shaker).
  • Spreading of ovarian cancer to peritoneal cavity is a major concern in healthcare.

Questions that this video will help you answer

  • What is the peritoneal cavity and how does it function?
  • What purpose does a peritoneum 3D model serve and how is it created?
  • What is peritoneal lining cancer and how does it spread?

Applications and Relevance

  • Peritoneum models aid in understanding body structures (e.g., peritoneum 3D model).
  • Studying peritoneal lining cancer can lead to preventative measures (e.g., healthcare sectors).
  • Information on the ovarian metastasis carries societal importance (e.g., cancer awareness).
  • Developments in incubation devices further scientific advancements in healthcare.

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