テラトカルシノーマと哺乳類の胚形成

G R Martin

Science (New York, N.Y.)

|August 15, 1980

まとめ

マウステラトマ幹細胞と胚細胞の驚くべき類似性は,腫瘍細胞が正常な発達に貢献することを可能にします. この発見は,孤立した幹細胞系を使用して早期哺乳類の発達を研究するための新しい道を開きます.

科学分野:

発達生物学発達生物学とは
がん研究がん研究
幹細胞生物学幹細胞生物学とは

背景:

最近の研究では,テラトカルシノーマの幹細胞とマウスの初期の胚細胞の驚くべき類似性を強調しています.
テラトカルシノマの幹細胞は,胚細胞と統合し,完全に正常なマウスの発達に貢献することができます.
この類似性は,哺乳類の早期発達を調査するためのユニークなモデルを提供します.

研究の目的:

テラトカルシノマ幹細胞と胚性幹細胞の機能的類似性を探求する.
テラトカルシノマの幹細胞が正常な胚の発達に参加する可能性を調査する.
早期哺乳類の発達に関する先進的な研究のために,テラトカルシノマ由来幹細胞系を活用する.

主な方法:

マウス・テラトカルシノーマからの幹細胞系統の分離と特徴付け.
テラトカルシノーマと胚性幹細胞の生化学分析.
細胞タイプ間の免疫学的比較.
テラトカルシノマ由来幹細胞系を用いた遺伝学的研究.

主要な成果:

テラトカルシノマ幹細胞と胚性幹細胞の機能的同等性が実証されています.
テラトカルシノマ幹細胞が正常なマウス胚形成に寄与する能力を確認した.
発達研究のための貴重なツールとして,確立されたテラトカルシノマ幹細胞系.

結論:

テラトカルシノマ幹細胞は,哺乳類の早期発達を理解するための強力なモデルシステムとして機能します.
これらの腫瘍幹細胞の可塑性は,発達過程についての洞察を提供します.
これらの細胞系の存在は,新しい生化学的,免疫的,遺伝的研究を容易にする.

さらに関連する動画

05:24

Teratoma Generation in the Testis Capsule

Published on: November 7, 2011

08:13

Using the Chicken Chorioallantoic Membrane In Vivo Model to Study Gynecological and Urological Cancers

Published on: January 28, 2020

関連する概念動画

01:33

Cleavage and Blastulation

After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.

01:56

Gastrulation

Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata will form...

02:43

Mouse Models of Cancer Study

Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...

01:10

Zygotic Development And Stem Cell Formation

The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...

01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...

01:25

Mutagenicity and Carcinogenicity

Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...

関連する実験動画