発症 初期 の 胃腸 がん: 概要
Thejus Jayakrishnan1, Kimmie Ng1
1Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.
JAMA
|July 17, 2025
まとめ
早期発症する胃腸がんは 世界的に増加しており,大腸がんが最も一般的です. 後期発症したがんに似た治療法があるにも関わらず,生存率はしばしば悪化しており,より良い予防と検出の必要性を強調しています.
科学分野:
- 腫瘍学
- 胃腸内科
- 遺伝学
背景:
- 早期発症した胃腸がんは 50歳未満で診断され,世界中で増加しており,米国でも最も早く発症するがんです.
- 結腸直腸がん (CRC) は,世界的にも米国でも最も一般的な早期発症の消化器がんであり,次に胃がん,食道がん,臓がんが続きます.
- 変更可能な危険因子には,肥満,栄養不良,静止生活,喫煙,アルコールが含まれます. 変更できない要因には,家族歴および遺伝性シンドロームが含まれます.
研究 の 目的:
- 発症率,危険因子,診断,治療,予後など,早期発症する胃腸がんの現状をまとめます.
- 治療の指針と家族リスクの評価のための遺伝子検査の重要性を強調する.
- 予防と早期発見戦略の改善の必要性を強調する.
主な方法:
- 2022年の早期発症胃腸がんに関する世界および米国の発生率データをレビューする.
- 関連する可変および不可変の危険因子の分析
- 遺伝子検査を含む現在の診断と治療方法の概要
- 後発性胃腸がんとのアウトカムと生存率の比較
主要な成果:
- 早期発症した胃腸がんはますます多く,CRCは最も一般的なタイプです.
- 早期発症した胃腸がんの有意な割合は 遺伝的傾向に関連しています
- 治療プロトコルは 後期発症がんの治療プロトコルと似ていますが,生存率は比較可能か悪化しています.
- 専門のセンターでは 妊娠不全や 心理的・社会的苦痛や 経済的困難を 支援しています
結論:
- 早期発症した胃腸がんは,若年層に大きな影響を与える世界的な健康問題です.
- 早期発症した胃腸がんの 個別化された治療とリスク評価には 遺伝子検査が不可欠です
- 患者の治療結果を改善するために 予防と早期発見の方法の改善が緊急に必要です
関連する概念動画
Barrett Esophagus-II: Clinical Manifestations and Management
290
Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure...
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure...
290
Barrett Esophagus-I: Introduction
197
Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more...
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more...
197
Cancer-Critical Genes I: Proto-oncogenes
9.1K
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...
9.1K
Gastrointestinal Motility Disorders
590
Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
590
Chronic Bowel Disorders: Introduction
536
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
536
Treatment Resistant Cancers
3.4K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.4K


