相关实验视频

Updated: Jan 28, 2026

Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods

Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods

Published on: November 24, 2012

来自状乳头衍生的外体的低毒干细胞通过线粒体激活增强牙脉干细胞的迁移和分化

Deyan Yuan¹, Rui Tao¹, Bi Yin¹

¹Department of Stomatology, The 904 Hospital of Joint Logistic Support Force of PLA, Wuxi, China.

Journal of dental sciences

|January 26, 2026

概括

低毒干细胞外生体通过线粒体融合增强牙干细胞的迁移和分化. 这一发现为牙科再生医学疗法提供了新的途径.

科学领域:

生物材料科学生物材料科学
再生医学是一种再生医学.
细胞生物学细胞生物学

背景情况:

牙皮 (SCAP) 和牙肉皮干细胞 (DPSC) 的干细胞对于牙组织再生至关重要.
通过外体细胞的细胞间通信影响干细胞调节,但低氧SCAP衍生的外体细胞在DPSCs上的作用仍然不清楚.

研究的目的:

研究由低毒性SCAPs衍生出的外体对DPSCs迁移和口腔生成差异化的影响.
阐明涉及线粒体动力学和能量代谢的潜在机制.

主要方法:

从在正常和低氧条件下培养的SCAP中分离出外体.
用这些外体对待了DPSC,并评估了它们的迁移和牙产生的差异化.
分析了线粒体动态,能量代谢和基因/蛋白质表达.

主要成果:

低毒性SCAP (Hypo-Exo) 的外体增强了DPSCs的迁移和口腔产生差异化,与正常的外体相比.
在DPSC中,Hypo-Exo促进了线粒体融合,由增加的MFN2/TOM20表达和增加的氧气消耗表明.
线粒体新陈代谢的抑制消除了催生效应,突出了线粒体能量新陈代谢的作用.

结论:

缺氧SCAP衍生的外体通过线粒体融合和改变能量代谢促进DPSCs迁移和odontogenic分化.
这项研究揭示了一种新的外体-线粒体调节轴,用于牙组织再生.
这些发现支持在牙科再生医学中开发缺氧工程外体治疗方法.

关键词:

牙髓干细胞 (DPSCs) 是指牙髓的干细胞.外基因组是外基因组的组成部分.来自上角乳头的干细胞 (SCAPs)

更多相关视频

In vitro Induction of Human Dental Pulp Stem Cells Toward Pancreatic Lineages

In vitro Induction of Human Dental Pulp Stem Cells Toward Pancreatic Lineages

Published on: September 25, 2021

Author Spotlight: Advancing Tissue Regeneration and Disease Modeling with Dental Pulp Stem Cells

Author Spotlight: Advancing Tissue Regeneration and Disease Modeling with Dental Pulp Stem Cells

Published on: May 5, 2023

相关概念视频

Adult Stem Cells

Adult Stem Cells

Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...

Embryonic Stem Cells

Embryonic Stem Cells

Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.

Embryonic Stem Cells

Embryonic Stem Cells

Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...

Induced Pluripotent Stem Cells

Induced Pluripotent Stem Cells

Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...

B Cell Activation and Differentiation

B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...

Distinctive Features of Adult Stem Cells vs Cancer Stem Cells

Distinctive Features of Adult Stem Cells vs Cancer Stem Cells

A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...