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相关概念视频

The Tumor Microenvironment02:17

The Tumor Microenvironment

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Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
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Induced Pluripotent Stem Cells01:06

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Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
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Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
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The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
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Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis
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微观威胁:探索微塑料和癌症病原体之间的联系

Manu M Joseph1, Jyothi B Nair2, Anu Mary Joseph3

  • 1Department of Life Sciences, CHRIST University, Bengaluru, Karnataka, 560029, India. manu.joseph@christuniversity.in.

Environmental science. Processes & impacts
|June 11, 2025
PubMed
概括

微塑料是无处不在的微小塑料颗粒,对人类健康构成潜在风险,特别是癌症的发展. 进一步的研究对于理解和解决这种日益严重的环境和健康问题至关重要.

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科学领域:

  • 环境科学 环境科学
  • 毒理学 毒理学 毒理学
  • 在瘤学瘤学.

背景情况:

  • 微塑料,定义为塑料颗粒 (1微米5毫米),是具有广泛环境存在的新兴污染物.
  • 它们在生态系统中的生物积累和持久性引起了人们对人类健康潜在影响的担忧.
  • 癌症仍然是导致死亡的主要原因,需要对新的促成因素进行调查.

研究的目的:

  • 审查微塑料的分类,环境持久性和生物积累.
  • 探索微塑料暴露与癌症病原发生之间的潜在联系.
  • 强调需要改进检测方法和临床研究的需要.

主要方法:

  • 流行病学和实验研究的文献综述.
  • 分析现有关于微塑料检测和表征的数据.
  • 讨论当前的知识差距和未来的研究方向.

主要成果:

  • 微塑料是普遍存在的环境污染物,已被证明具有生物积累.
  • 有证据表明,微塑料与癌症发展之间存在潜在的联系,尽管需要进一步研究.
  • 目前在生物样本中检测微塑料的方法需要改进.

结论:

  • 要了解微塑料对人类健康,特别是癌症的全部影响,需要进一步进行大量的研究.
  • 标准化研究协议,监管措施和跨学科合作是必不可少的.
  • 解决微塑料在癌症发病过程中的威胁需要一个协调的,多领域的科学努力.