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相关概念视频

Skin Diseases and Disorders01:23

Skin Diseases and Disorders

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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
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Renewal of Skin Epidermal Stem Cells01:12

Renewal of Skin Epidermal Stem Cells

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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...
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Skin Cancer01:30

Skin Cancer

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Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
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Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

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Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
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iPS Cell Differentiation01:22

iPS Cell Differentiation

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The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
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Cellular Differentiation00:57

Cellular Differentiation

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How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
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相关实验视频

Updated: May 16, 2025

Generation and Culturing of Primary Human Keratinocytes from Adult Skin
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Generation and Culturing of Primary Human Keratinocytes from Adult Skin

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综合征性表皮分化障碍:针对基于病原性治疗的新分类.

Amy S Paller1, Joyce Teng2, Juliette Mazereeuw-Hautier3

  • 1Northwestern University Feinberg School of Medicine and the Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA.

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概括

遗传性表皮分化障碍 (EDD) 的新分类有助于确定治疗点. 这种方法将疾病按共同的疾病机制组合在一起,有可能改善罕见综合征性EDDs的治疗反应.

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Characterization of In Vitro Differentiation of Human Primary Keratinocytes by RNA-Seq Analysis
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科学领域:

  • 遗传学和分子生物学
  • 皮肤病学 皮肤病学
  • 罕见疾病 罕见疾病

背景情况:

  • 2010年 Ichthyosis分类已经更新,增加了对遗传性表皮分化障碍 (EDDs) 的理解.
  • 基于基因和蛋白质功能的新分类侧重于共享的疾病致病机制.
  • 现在EDD被分为综合征性 (sEDD),非综合征性皮肤/尾 (nEDD) 和手掌植物性 (pEDD) 类型.

研究的目的:

  • 引入基于基因和蛋白质功能的EDDs的新分类系统.
  • 突出基于疾病机制的向治疗的潜力.
  • 讨论临床影响,特别是对于罕见的综合征性EDDs.

主要方法:

  • 审查和综合有关EDDs的当前知识.
  • 开发基因和蛋白质产品基于功能的分类.
  • 对sEDDs的临床特征,皮肤外表现和治疗策略的分析.

主要成果:

  • 综合性EDDs (sEDDs) 经常存在皮肤外特征,包括神经,眼科和头发异常.
  • 常见的sEDD包括STS-sEDD和SPINK5-sEDD.
  • 基于发病的疗法,如局部的洛瓦斯塔丁-胆固醇和卡利克林抑制剂,显示出有前途.
  • 基因编辑和cDNA引入是未来潜在的治疗途径.

结论:

  • 新的EDD分类有助于更深入地了解疾病机制和治疗目标.
  • 基于病变的疗法为管理罕见的sEDDs提供了新的希望.
  • 需要进一步的研究来定义sEDDs的自然历史和基因型-表型关系.