totipotent

简明释义

英[təʊˈtɪpətənt]美[toʊˈtɪpətənt]

adj. （细胞等）[生物] 全能的

英英释义

单词用法

同义词

反义词

例句

1.Totipotent - having unlimited capability. Totipotent cells have the capacity to specialize into extraembryonic membranes and tissues, the embryo, and all postembryonic tissues and organs.

全能—具有无限能力。全能细胞具有分化为特定的胚胎外膜和组织、胚胎以及所有胚胎后组织和器官的能力。

2.Totipotent cells can generate an entire organism.

可是万能细胞可以发育成完整的器官。

3.Totipotent - having unlimited capability. Totipotent cells have the capacity to specialize into extraembryonic membranes and tissues, the embryo, and all postembryonic tissues and organs.

全能？具有无限能力。全能细胞具有分化为特定的胚胎外膜和组织、胚胎以及所有胚胎后组织和器官的能力。

4.Totipotent - having unlimited capability. Totipotent cells have the capacity to specialize into extraembryonic membranes and tissues, the embryo, and all postembryonic tissues and organs.

全能—具有无限能力。全能细胞具有分化为特定的胚胎外膜和组织、胚胎以及所有胚胎后组织和器官的能力。

5.At this point a small number of embryonic cells, but they are still totipotent cells.

此时胚胎的细胞数较少，但都是全能细胞。

6.The totipotent and chromosome of the expanded ES cells were also examined.

对扩增后的ES细胞进行染色体和全能性检测。

7.Embryonic stem cells are totipotent.

胚胎干细胞是两性的。

8.In the early stages of development, the zygote is considered to be totipotent 全能的, capable of forming any cell type in the organism.

在发育的早期阶段，受精卵被认为是totipotent 全能的，能够形成生物体内的任何细胞类型。

9.A totipotent 全能的 cell can give rise to both embryonic and extra-embryonic tissues.

一个totipotent 全能的细胞可以产生胚胎组织和额外胚胎组织。

10.Research on totipotent 全能的 cells may lead to breakthroughs in regenerative medicine.

对totipotent 全能的细胞的研究可能会导致再生医学的突破。

11.In plant biology, certain cells can remain totipotent 全能的 throughout the life of the plant, allowing for regeneration.

在植物生物学中，某些细胞可以在植物的整个生命过程中保持totipotent 全能的，允许再生。

12.Stem cells derived from the early embryo are totipotent 全能的 and can differentiate into any cell type.

从早期胚胎中提取的干细胞是totipotent 全能的，可以分化成任何细胞类型。

作文

The concept of cell differentiation is fundamental to understanding how complex organisms develop from a single fertilized egg. One of the most fascinating types of cells in this context is the totipotent cell. A totipotent cell is one that has the potential to develop into any type of cell in an organism, including both the embryonic and extra-embryonic tissues. This means that a single totipotent cell can give rise to all the different cell types needed to form a complete organism, as well as the supporting structures necessary for development, such as the placenta in mammals.During the early stages of embryonic development, the zygote, which is formed when a sperm fertilizes an egg, is considered totipotent. As it begins to divide, the resulting cells remain totipotent for a short period before they begin to specialize. This process of specialization is known as differentiation, where cells gradually lose their totipotent capabilities and become committed to specific functions. For instance, some cells will become muscle cells, while others may become neurons or blood cells.The study of totipotent cells is not only important for developmental biology but also has significant implications for regenerative medicine and therapeutic cloning. Scientists are particularly interested in harnessing the power of totipotent cells to regenerate damaged tissues or organs in patients. If researchers can find ways to manipulate these cells, they could potentially create new therapies for diseases such as Parkinson's, diabetes, and spinal cord injuries.One of the challenges in working with totipotent cells is that their ability to differentiate into any cell type must be carefully controlled. Unregulated differentiation can lead to problems such as tumor formation. Therefore, understanding the signals and factors that govern the transition from totipotent to differentiated states is a critical area of research.Furthermore, advancements in stem cell technology have led to the discovery of induced pluripotent stem cells (iPSCs), which are adult cells that have been reprogrammed to an embryonic-like state. While iPSCs are not truly totipotent—they cannot form extra-embryonic tissues—they still hold great promise for medical applications because they can differentiate into many different cell types. The ability to generate patient-specific iPSCs could revolutionize personalized medicine, allowing for tailored treatments that minimize the risk of rejection by the immune system.In conclusion, totipotent cells play a crucial role in the early stages of development and hold immense potential for future medical advancements. Understanding their properties and mechanisms of action will continue to be a significant focus of scientific inquiry. As we unravel the complexities of these remarkable cells, we may unlock new possibilities for healing and regeneration, ultimately improving the quality of life for countless individuals around the world.

细胞分化的概念对于理解复杂生物体如何从单个受精卵发育而来至关重要。在这个背景下，最迷人的细胞类型之一是全能性细胞。全能性细胞是指具有发展为生物体中任何类型细胞的潜力，包括胚胎组织和附属组织。这意味着单个全能性细胞可以产生形成完整生物体所需的所有不同细胞类型，以及发育所需的支持结构，如哺乳动物的胎盘。在胚胎发育的早期阶段，受精卵被认为是全能性的。当它开始分裂时，产生的细胞在短时间内保持全能性，然后开始专门化。这个专门化的过程称为分化，细胞逐渐失去其全能性能力，并致力于特定功能。例如，一些细胞将成为肌肉细胞，而其他细胞可能成为神经元或血细胞。对全能性细胞的研究不仅对发育生物学重要，而且对再生医学和治疗克隆也具有重大意义。科学家们特别希望利用全能性细胞的力量来再生患者受损的组织或器官。如果研究人员能够找到操控这些细胞的方法，他们可能会创造出新的疗法来治疗如帕金森病、糖尿病和脊髓损伤等疾病。在处理全能性细胞时面临的一个挑战是，必须仔细控制它们分化为任何细胞类型的能力。失控的分化可能导致肿瘤等问题。因此，了解控制从全能性状态到分化状态转变的信号和因素是一个关键的研究领域。此外，干细胞技术的进步导致了诱导多能干细胞（iPSCs）的发现，这些是已经被重新编程成类胚胎状态的成年细胞。虽然iPSCs并不是真正的全能性细胞——它们不能形成附属组织——但由于它们可以分化为许多不同的细胞类型，因此仍然具有巨大的医疗应用前景。生成患者特异性iPSCs的能力可能会彻底改变个性化医学，使得治疗方案量身定制，从而最大限度地减少免疫系统排斥的风险。总之，全能性细胞在早期发育阶段发挥着至关重要的作用，并且在未来的医学进步中蕴含着巨大的潜力。理解它们的特性和作用机制将继续成为科学研究的重要焦点。随着我们解开这些非凡细胞的复杂性，我们可能会为治疗和再生开启新的可能性，从而改善世界上无数个体的生活质量。