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関連する概念動画

Immunofluorescence Microscopy01:12

Immunofluorescence Microscopy

13.9K
A fluorescence microscope uses fluorescent chromophores called fluorochromes, which can absorb energy from a light source and then emit this energy as visible light. Fluorochromes include naturally fluorescent substances (such as chlorophylls) and fluorescent stains that are added to the specimen to create contrast. Dyes such as Texas red and FITC are examples of fluorochromes. Other examples include the nucleic acid dyes 4’,6’-diamidino-2-phenylindole (DAPI), and acridine orange.
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Chromosomal Theory of Inheritance01:39

Chromosomal Theory of Inheritance

60.5K
In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”
60.5K
Chromosome Structure02:40

Chromosome Structure

26.7K
A functional eukaryotic chromosome must contain three elements: a centromere, telomeres, and numerous origins of replication.
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
Telomeres consist of non-coding repetitive nucleotide...
26.7K
Lampbrush Chromosomes01:51

Lampbrush Chromosomes

8.7K
In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
8.7K
Polytene Chromosomes02:04

Polytene Chromosomes

11.1K
Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also...
11.1K
Chromosome Replication02:31

Chromosome Replication

10.8K
Before a cell can divide, it must accurately replicate all of its chromosomes, including the DNA and its associated histone and non-histone proteins.  This process begins at numerous origins of replication during the S phase of the cell cycle in each of a cell’s chromosomes simultaneously. Certain nucleotides can act as origins of replication, but these sequences are not well defined - especially in complex, multi-cellular, eukaryotic species. The length of DNA that spans an origin...
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関連する実験動画

Updated: Feb 15, 2026

Live Cell Imaging of Chromosome Segregation During Mitosis
06:39

Live Cell Imaging of Chromosome Segregation During Mitosis

Published on: March 14, 2018

9.9K

染色体不安定性 (CIN) を定量化および特徴付けるための免疫光顕微鏡.

Kathryn M Jones1, Yeseo Choi1, Radchanon Leelasukseree1

  • 1Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States.

Methods in cell biology
|February 13, 2026
PubMed
まとめ

染色体不安定性 (CIN) は,がんにおけるアヌプロイド症の原因である. この研究は,CINとマイクロ核を定量化するための単純な免疫光法を示し,がん研究と潜在的な治療戦略を支援しています.

キーワード:
がん がん がん がん がん染色体の不安定性について染色体分離の誤差についてマイクロ核は,微小核である.スティング・スティング (Stinging Sting) とはcGAS (ガス) とは

さらに関連する動画

Characterizing DNA Repair Processes at Transient and Long-lasting Double-strand DNA Breaks by Immunofluorescence Microscopy
08:31

Characterizing DNA Repair Processes at Transient and Long-lasting Double-strand DNA Breaks by Immunofluorescence Microscopy

Published on: June 8, 2018

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Chromosome Preparation From Cultured Cells
07:42

Chromosome Preparation From Cultured Cells

Published on: January 28, 2014

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関連する実験動画

Last Updated: Feb 15, 2026

Live Cell Imaging of Chromosome Segregation During Mitosis
06:39

Live Cell Imaging of Chromosome Segregation During Mitosis

Published on: March 14, 2018

9.9K
Characterizing DNA Repair Processes at Transient and Long-lasting Double-strand DNA Breaks by Immunofluorescence Microscopy
08:31

Characterizing DNA Repair Processes at Transient and Long-lasting Double-strand DNA Breaks by Immunofluorescence Microscopy

Published on: June 8, 2018

9.7K
Chromosome Preparation From Cultured Cells
07:42

Chromosome Preparation From Cultured Cells

Published on: January 28, 2014

84.0K

科学分野:

  • 細胞生物学 細胞生物学
  • 遺伝学 遺伝学とは
  • がん研究 がん研究

背景:

  • 染色体不安定性 (CIN) は,連続した染色体不分離を伴い,アヌプロイド症につながり,ほとんどの癌で流行しています.
  • CINは,ミトスのチェックポイント機能不全などの内在的要因と,腫瘍の進行に影響を与える放射線などの外在的要因から生じる.
  • CINによるマイクロ核の形成は,cGAS-STING経路経由で免疫反応を活性化することができます.

研究 の 目的:

  • 染色体不安定性 (CIN) とマイクロ核を定量化および特徴付けるための簡単な方法を提示する.
  • CIN分析のためのヒトおよびマウインの細胞系および組織に適用できる技術を提供すること.

主な方法:

  • 免疫光顕微鏡を使用して,CINとマイクロ核を視覚化および定量化しました.
  • この方法は,細胞および組織分析のためのシンプルで実装可能な技術に焦点を当てています.

主要な成果:

  • この研究では,染色体ミスマセグレーションイベントとマイクロ核の形成を定量化するための方法について詳細に述べています.
  • 説明されている技術は,様々な細胞タイプと組織に適応できます.

結論:

  • 開発された方法は,CINとマイクロ核を研究するための簡単なアプローチを提供します.
  • このテクニックは,がんと免疫反応におけるCINの役割に関する研究を支援し,治療戦略に潜在的に情報を与えることができます.