微生物群 と 癌: 翻訳 的 な 科学 の 考察
Estefania Fernandez1, Jennifer A Wargo2,3, Beth A Helmink2
1Department of Gynecologic Oncology & Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston.
JAMA
|May 12, 2025
まとめ
腸内の微生物は 癌の発生と治療への反応に影響します 糞便の微生物移植のような これらの微生物を調節する戦略は 癌の免疫療法の結果を改善するかもしれません
科学分野:
- 微生物群の研究
- 癌の生物学
- 免疫療法
背景:
- 腸内微生物群と癌の発生と進行を 結びつける証拠が増えています
- 腸や呼吸道など様々な部位にある微生物は 発がんや転移に 影響を及ぼします
- 腫瘍に関連した微生物は,がん治療の有効性と副作用に影響を与える可能性があります.
研究 の 目的:
- 癌における微生物の役割を探るため
- 癌治療の結果に対する 微生物調節の影響を評価する.
- 微生物群を標的とした 将来の治療戦略を強調する
主な方法:
- 臨床的および臨床前の証拠のレビュー
- 糞便の微生物移植と食事介入に関する研究の分析
- 癌の免疫療法中に抗生物質の使用に関連するアウトカムの検討.
主要な成果:
- 糞便の微生物移植と食事による腸内微生物の調節により,がん免疫療法の患者の治療結果が改善されました.
- 抗生物質による腸内微生物群の破壊は,免疫療法を受けている患者の生存率と副作用を悪化させた.
- 腫瘍内の微生物の存在は,治療反応に影響します.
結論:
- 微生物は癌の発生,進行,治療への反応に影響します.
- 腸内や他の部位にある 微生物群をターゲットにすることで 癌患者の治療結果を 改善する見込みがあります
- 将来の治療法では 微生物群の調節を活用して 癌の治療を向上させることができます
関連する概念動画
02:17The Tumor Microenvironment
6.4K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.4K
01:22MicroRNAs
21.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
21.0K
02:43Mouse Models of Cancer Study
5.4K
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,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
5.4K
02:49Cancer Therapies
7.4K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.4K
03:03mTOR Signaling and Cancer Progression
3.6K
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...
3.6K
02:18Cancer
47.1K
Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
47.1K