相关实验视频
Updated: Sep 19, 2025
05:49
Electrically Conductive Scaffold to Modulate and Deliver Stem Cells
Published on: April 13, 2018
13.4K
电刺激使衣变青:改变干细胞和免疫活动
Jos Domen1,2, Yotam Voskoboynik3, Tom Levy1,2
1Biology Department, Stanford University, Hopkins Marine Station, Pacific Grove, CA 93950, USA.
bioRxiv : the preprint server for biology
|June 6, 2025
概括
脉冲式电流 (PEC) 让殖民地带动物恢复青春,改善生存,再生和繁殖. 这种方法通过调节细胞代谢和免疫反应,提供了对健康衰老和生物生存的洞察.
科学领域:
- 生物电力是一种生物电力.
- 再生医学是一种再生医学.
- 衰老研究研究 衰老研究
背景情况:
- 生物体的再生和增强环境抵抗力是关键的需求.
- 虽然生物电流对发展至关重要,并显示出再生潜力,但缺乏长寿和生育能力的强大模型.
研究的目的:
- 建立一种使用脉动式电流 (PEC) 的机体复苏和提高活力的模型.
- 在殖民状动物模型中研究PEC治疗的机制性见解.
主要方法:
- 在殖民地鱼*Botryllus schlosseri*上利用了脉冲式电流 (PEC).
- 进行了转录基因分析,以确定受PEC影响的分子通路.
- 评估了生存,形态,再生和繁殖的改善.
主要成果:
- PEC治疗显著提高了生存率,形态完整性,干细胞中介再生和性腺生产.
- 转录组分析揭示了细胞代谢,细胞周期,干细胞活性,DNA修复和免疫调节的显著途径变化.
- PEC诱导的基因表达模式反映了哺乳动物免疫细胞中运动诱导的反应,与增加的免疫细胞群相关.
结论:
- 在Botryllus schlosseri*中,PEC提供了一种强大的方法来提高长寿,活力和繁殖能力.
- PEC治疗调节关键的细胞过程,包括新陈代谢和免疫反应,提供机械洞察力.
- 这些发现表明PEC是一种促进健康衰老和生物生存的新策略.
更多相关视频
07:41Simultaneous Electrical and Mechanical Stimulation to Enhance Cells' Cardiomyogenic Potential
Published on: January 18, 2019
7.7K
10:05Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ
Published on: May 8, 2020
2.0K
相关概念视频
01:23Renewal of Intestinal Stem Cells
2.7K
The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
2.7K
01:23Tissue Renewal without Stem Cells
1.8K
After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
However, failure of such a system...
1.8K
01:12Renewal of Skin Epidermal Stem Cells
2.6K
The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
2.6K
01:15Neurogenesis and Regeneration of Nervous Tissue
1.1K
In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
1.1K
01:21Stem Cell Therapy for Tissue Regeneration
4.2K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
4.2K
01:33Whole Body Regeneration
3.4K
Regeneration is the process of restoring injured or lost tissues, organs, or body parts. While simpler organisms generally show greater ability to regenerate their whole body, few complex animals show similarly exceptional regeneration. For example, planarian flatworms have a unique regenerative potential making them a popular study organism among biologists to understand the mechanisms of whole body regeneration. Other organisms, such as hydra, also show extreme regeneration potential;...
3.4K