細胞 の 衰え: 前進 の 道 を 定め て いる
PubMedで要約を見る
まとめ
この要約は機械生成です。このコンセンサスは,細胞老化のバイオマーカーを定義し,老化に関連した遺伝子を特定するためのツール,SeneQuestを提供します. 細胞内および体内での老化の正確な評価のためのアルゴリズムを提供し,老化治療の研究を支援しています.
科学分野
- 細胞・分子生物学
- ゲロントロジー
- バイオマーカーの発見
背景
- 細胞の衰えは 老化や老化関連疾患の 重要な要因です
- 衰老の治療をターゲットにすること (衰老療法) は急速に成長している分野です.
- 老化細胞の正確な検出は,老化治療の開発に不可欠です.
研究 の 目的
- 細胞老化の定義と検出に関するコンセンサスを確立する.
- 衰老の特徴をバイオマーカーとして使用するための勧告を提供すること.
- SeneQuestのリソースと老化評価アルゴリズムを紹介する.
主な方法
- 国際細胞老化協会 (ICSA) によるコンセンサス開発.
- 細胞および分子老化の重要な特徴の定義と議論.
- SeneQuest遺伝子識別ツールと老化の定量化アルゴリズムの開発
主要な成果
- 細胞老化のコンセンサスの定義と重要な特徴が提供されています.
- 衰老バイオマーカーの利用に関する勧告が提示されています.
- SeneQuestツールと新しい老化評価アルゴリズムが紹介されています.
結論
- 老化細胞の正確な識別は 老化治療の進歩に不可欠です
- ICSAのコンセンサス,SeneQuest,および提案されたアルゴリズムは老化の研究を促進します.
- これらの資金は,健康的な老化と老化関連疾患のための介入の開発を支援します.
関連する概念動画
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
Several external and internal factors influence the initiation and inhibition of cell division. For instance, the death of nearby cells or the release of human growth hormone (hGH) promotes cell division. In contrast, lack of hGH or crowding of cells can inhibit cell division.
Several proteins function as internal regulators to ensure each cell cycle stage is completed faithfully before proceeding to the next. Regulator molecules may act directly or influence the activity or production of other...
Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
Three of the best-understood negative regulators are p53, p21, and retinoblastoma protein (Rb). The regulatory roles of each of these proteins were discovered after faulty copies were found in cells with uncontrolled replication (i.e.,...
The cell cycle regulation directs how a cell proceeds from one phase to the next and begins mitosis. The cell cycle control system includes intracellular regulatory molecules and external triggers. They provide "stop" or "advance" signals and operate at specific cell cycle stages termed checkpoints to ensure that a particular process is completed before the cell advances to the next phase.
Cyclins and cyclin-dependent kinases (Cdks) are the primary cell cycle regulators and...
The cell cycle is an organized set of events that leads the cell to divide into two daughter cells, each containing chromosomes identical to the parent cell. It is the cell cycle that leads to the formation of an entire organism from a single-cell zygote. Besides, cell division also functions in the renewal or repair of tissues in adult multicellular eukaryotes. For example, in the bone marrow, the stem cells divide to form new blood cells. Although essential for several functions, cell...
Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...

