Adgrg6/Gpr126对于紧壁的完整性和在心脏轨道运动过程中建立轨道状骨标识是必要的
Swati Srivastava1,2, Felix Gunawan3,4,5, Silvia Vergarajauregui1,6
1Department of Nephropathology, Institute of Pathology, Experimental Renal and Cardiovascular Research, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
Nature communications
|February 7, 2026
概括
粘附G蛋白结合受体 (aGPCRs) 控制心脏的发育. 在 Gpr126 中使用.
科学领域:
- 心血管生物学 心血管生物学
- 发展生物学 发展生物学
- 细胞生物学 细胞生物学
背景情况:
- 粘附G蛋白结合受体 (aGPCRs) 在发育中起着至关重要的作用,但它们的确切功能在很大程度上是未知的.
- aGPCR Gpr126涉及到心脏曲解,这是对心脏功能至关重要的过程.
- 心脏轨道的缺陷可能导致心肌病和心脏功能障碍.
研究的目的:
- 阐明Gpr126域在调节心肌细胞发育和心脏轨道形成中的不同作用.
- 了解心肌细胞如何在心脏发育过程中获得状细胞的身份.
主要方法:
- 使用了具有特定域删除的母细胞性 (MZ) gpr126stl47和gpr126st49突变.
- 在突变模型中分析了N-cadherin局部化和心肌细胞极化.
- 研究了内心Gpr126C端碎片 (CTF) 表达对轨道运动的影响.
主要成果:
- MZ gpr126stl47突变体在紧层心肌细胞中表现出随机N-cadherin分布的低度.
- 表达Gpr126 N-终端碎片缺乏GPS动机 (NTFΔGPS) 的突变者表现出多层心室壁,具有正常的N-cadherin定位和增加的Notch活性.
- 内心CTF表达在gpr126st49突变体中挽救了轨道突变缺陷.
结论:
- Gpr126的N端碎片 (NTF) 对于保持紧壁的完整性和细胞对细胞的粘附是必不可少的.
- Gpr126的C端片段 (CTF) 对于确定心肌细胞轨道状细胞的身份至关重要.
- 不同的Gpr126域在调节心脏发育和心脏流中发挥着特定的,非冗余的作用.
相关概念视频
Compact Bone
16.6K
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
16.6K
Compacting Factor test
602
The compacting factor test is a method used to assess the workability of concrete. It is especially suitable for concrete mixes containing aggregates up to one and a half inches in size. This test involves specialized equipment consisting of two truncated cone-shaped hoppers and a cylinder, all with polished interior surfaces to minimize friction.
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
602
Trigonometric Identities II
425
Double-angle and half-angle trigonometric identities are derived from the fundamental sum and difference formulas and serve as essential tools for simplifying expressions, solving equations, and evaluating integrals. These identities reduce the complexity of trigonometric functions by relating functions of a multiple or fractional angle to functions of a single angle. Their applications extend across mathematics, physics, and engineering, particularly in Fourier analysis, wave mechanics, and...
425
Personal Identity
457
Personal identity is the deeply felt sense of self that individuals cultivate over time, intricately woven from intrinsic qualities they consider essential to their existence—qualities such as morality, intelligence, and friendliness. These attributes serve as vital internal benchmarks, guiding individuals in evaluating whether their actions resonate with their true selves.When personal identity takes center stage in one's life, individuals often emphasize their distinctiveness,...
457
Social Identity
357
Social identity constitutes a significant aspect of an individual’s self-concept, shaped by membership in various social groups, including gender, nationality, ethnicity, sexual orientation, and political affiliation. Individuals associate specific traits with particular social groups, leading to internalization of these traits. For example, musicians are often perceived as creative, while women are frequently associated with nurturing tendencies. Once individuals identify with a...
357
Trigonometric Identities I
244
Trigonometric identities are equations that relate trigonometric functions and hold for all angles within their domains. A fundamental identity among these is the Pythagorean identity, which arises directly from the geometry of the unit circle. For any angle θ, a point on the unit circle has coordinates (cos θ, sin θ), and since the radius of the circle is one, the Pythagorean Theorem gives:This identity serves as the basis for deriving additional identities.
244


