COL3A1は,PI3K/AKTシグナル伝達を活性化することによって,胃がんの進行を促進します
Xiaqiong Mao1, Wei Li2, Yue Guan1
1Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
Cancer gene therapy
|February 21, 2026
まとめ
コラーゲンIII型アルファ1鎖 (COL3A1) は胃がん (GC) で過剰発現し,腫瘍の成長と侵入を促進する. COL3A1をターゲットにすると,GCの進行を阻害し,治療目標としての可能性を示唆します.
科学分野:
- 腫瘍学 腫瘍学
- 分子生物学は分子生物学である.
- がん研究 がん研究
背景:
- コラーゲンIII型アルファ1鎖 (COL3A1) が胃がん (GC) で果たす役割は十分に理解されていません.
- COL3A1は,様々ながんにおいて腫瘍性作用があることが知られている.
研究 の 目的:
- 胃がんにおけるCOL3A1の機能を調査する.
- GC進行におけるCOL3A1の役割の基礎となる分子メカニズムを解明する.
主な方法:
- GC組織と細胞におけるCOL3A1 mRNAとタンパク質発現の分析.
- COL3A1発現と腫瘍免疫マイクロ環境の関連性に関する調査.
- COL3A1発現の規制メカニズムとその下流信号伝達経路の探索.
- COL3A1.1.を標的とした治療の可能性を評価するためのインビボ試験.
主要な成果:
- COL3A1 mRNAとタンパク質は,GCの組織と細胞で著しく過剰発現していました.
- COL3A1の高い発現は,不良の予後と免疫微環境の改造と相関しています.
- エストロゲン受容体1 (ESR1) は,GCにおけるCOL3A1の転写調節体として特定されました.
- COL3A1-インテグリンα1軸は,PI3K-AKTシグナル伝達経路を通じて,GCの増殖,侵入,および血管新生を促進する.
- COL3A1の抑制は,GCの生体内での成長を著しく抑制しました.
結論:
- COL3A1は胃がんにおける腫瘍遺伝子として作用する.
- COL3A1は,PI3K-AKTシグナル伝達経路を活性化することによって,GCの進行を促進します.
- COL3A1をターゲットにすることは,胃がんの潜在的な治療戦略です.
関連する概念動画
03:03mTOR Signaling and Cancer Progression
4.9K
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.
The mTOR pathway or the...
The mTOR pathway or the...
4.9K
01:22PI3K/mTOR/AKT Signaling Pathway
5.8K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
5.8K
02:07Tumor Progression
7.5K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
7.5K
02:23Abnormal Proliferation
5.3K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.3K
01:23Gastritis III: Clinical Manifestations and Management
1.4K
The clinical manifestations of gastritis can vary depending on the cause and type of gastritis, but some common symptoms may include the following.
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
1.4K
01:33Cancer-Critical Genes I: Proto-oncogenes
11.6K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
11.6K