相关实验视频

Updated: Jul 18, 2025

Mouse In Vivo Placental Targeted CRISPR Manipulation

Mouse In Vivo Placental Targeted CRISPR Manipulation

Published on: April 14, 2023

非糖基化IGF2亲激素比原生IGF2更具有线索性作用

Pavlo Potalitsyn^1,2, Lucie Mrázková^1,3, Irena Selicharová¹

¹Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 116 10, Prague 6, Czech Republic.

Communications biology

|August 19, 2023

概括

类似胰岛素的生长因子-2 (IGF2) 形式,如pro-IGF2 (156) 和大IGF2 (104),表现出独特的激素特性. 这些发现表明它们在与高IGF2原型水平相关的疾病中的潜在作用.

科学领域:

内分泌学在内分泌学.
分子生物学分子生物学
细胞生理学细胞生理学

背景情况:

胰岛素类生长因子-2 (IGF2) 对胚胎和成人生理过程至关重要.
对IGF2前体 (pro-IGF2(156) 的异常处理产生了前型,大-IGF2(87) 和大-IGF2(104).
在某些疾病中观察到高水平的未经加工的IGF2前体,其功能尚不清楚.

研究的目的:

研究IGF2的生物活动和受体结合特性.
为了比较亲IGF2(156),大IGF2(87),大IGF2(104的功能特征与成熟的IGF2.2.
探索这些前型在疾病发病过程中的潜在作用.

主要方法:

对IGF2-proform与IGF结合蛋白的结合 afinities 的比较分析.
在细胞模型上评估IGF2的增殖效应.
测量大IGF2的结合亲和力104) 到IGF2受体.
通过pro-IGF2的受体激活和细胞生长刺激的评估87).

主要成果:

与成熟的IGF2相比,Pro-IGF2 (((156) 具有较低的结合到不活化的IGF结合蛋白和增强的细胞增殖.
大IGF2 ((104) 对IGF2受体的结合亲和力比成熟IGF2.2的结合亲和力大七倍.
亲IGF2 ((87) 有效地结合和激活特定的受体,刺激细胞生长类似于成熟的IGF2.

结论:

亲IGF2 ((156) 和大IGF2 ((104) 的独特特性表明它们可能作为激素起作用.
这些前型可能与循环中的IGF-2前型积累的疾病有关.
需要进一步的研究,以阐明这些IGF2前型在人类病理学的确切作用.

更多相关视频

Sustained Administration of β-cell Mitogens to Intact Mouse Islets Ex Vivo Using Biodegradable Poly(lactic-co-glycolic acid) Microspheres

Sustained Administration of β-cell Mitogens to Intact Mouse Islets Ex Vivo Using Biodegradable Poly(lactic-co-glycolic acid) Microspheres

Published on: November 5, 2016

Rapid Quantification of Mitogen-induced Blastogenesis in T Lymphocytes for Identifying Immunomodulatory Drugs

Rapid Quantification of Mitogen-induced Blastogenesis in T Lymphocytes for Identifying Immunomodulatory Drugs

Published on: December 27, 2016

相关概念视频

Mitogens and the Cell Cycle

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...