Gut microbiota derived DCA enhances FOLFOX efficacy via Ugt1a6b mediated enterohepatic circulation in colon cancer DOI Creative Commons
Fang Qian, Xiaoying Hou, Limei Fan

и другие.

Pharmacological Research, Год журнала: 2025, Номер 213, С. 107636 - 107636

Опубликована: Фев. 1, 2025

FOLFOX (5-Fluorouracil, Calcium Folinate combined with Oxaliplatin) is a preferred chemotherapy regimen for colon cancer, but its limited efficacy remains major challenge, significantly impairs patient outcomes. There an urgent need to identify strategies improve therapeutic effectiveness. Our previous studies have suggested that gut microbiota-derived bile acids may be involved in the anticancer effect of vitro, however, underlying mechanism unclear. In this study, we investigated role modulating and related mechanisms. We first demonstrated depletion (cholestyramine treatment) enhanced orthotopic cancer mouse model, suggesting play key FOLFOX's effects. Further, based on system screen 15 via MTT, colony formation flow cytometry assay, Deoxycholic Acid (DCA) Glycodeoxycholic (GDCA) were annotated as potential modulators efficacy. Among these, DCA was further validated enhance anti-colon effects vivo. Transcriptomic analysis subsequent biological experiments revealed Ugt1a6b. conclusion, our findings establish enhances potentially Ugt1a6b mediated enterohepatic circulation, providing novel insights into synergistic strategy improving treatment.

Язык: Английский

Selenium Attenuates Radiation Colitis by Regulating cGAS‐STING Signaling DOI Creative Commons
Xuefeng Qian, Haoqiang Lai,

Haimei Zhang

и другие.

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Сен. 30, 2024

Abstract Radiation colitis is one of the most common complications in patients undergoing pelvic radiotherapy and there no effective treatment clinic. Therefore, searching for agents radiation urgently needed. Herein, it found that essential element selenium (Se) protective against through inhibiting X‐ray‐induced apoptosis, cell cycle arrest, inflammation with involvement balancing generation reactive oxygen species after irradiation. Mechanistically, Se, especially nanoparticles (SeNPs), induced selenoprotein expression then functioned to effectively restrain DNA damage response, which reduced intestinal injury. Additionally, SeNPs also restrained cyclic GMP‐AMP synthas (cGAS)‐ stimulator interferon genes (STING)‐TBK1‐IRF3 signaling pathway cascade, thereby blocking transcription inflammatory cytokine gene, IL‐6 TNF‐α, thus alleviating inflammation. Moreover, inducing expression, such as GPX4, vivo can regulate microenvironment immunity gut microbiota attenuate radiation‐induced by oxidative stress maintaining homeostasis. Together, these results unravel a previously unidentified modulation role but suppressing cGAS‐STING‐TBK1‐IRF3 cascade.

Язык: Английский

Процитировано

8

Targeting bacterial metabolites in tumor for cancer therapy: An alternative approach for targeting tumor-associated bacteria DOI

Guofeng Ji,

Jingjing Zhao,

Xinghui Si

и другие.

Advanced Drug Delivery Reviews, Год журнала: 2024, Номер 211, С. 115345 - 115345

Опубликована: Июнь 2, 2024

Язык: Английский

Процитировано

7

The mitochondrial stress signaling tunes immunity from a view of systemic tumor microenvironment and ecosystem DOI Creative Commons
Cheng‐Liang Kuo, Ying‐Chen Lin,

Yu Kang Lo

и другие.

iScience, Год журнала: 2024, Номер 27(9), С. 110710 - 110710

Опубликована: Авг. 13, 2024

Mitochondria play important roles in cell fate, calcium signaling, mitophagy, and the signaling through reactive oxygen species (ROS). Recently, mitochondria are considered as a organelle communicate with other organelles to constitute mitochondrial information processing system (MIPS) that transduce input-to-output biological information. The success immunotherapy, concept of systemic therapy, has been proved be dependent on paracrine interactions within tumor microenvironment (TME) distant organs including microbiota immune components. We will adopt broader view from TME micro- macroenvironment (T

Язык: Английский

Процитировано

7

Converging frontiers in cancer treatment: the role of nanomaterials, mesenchymal stem cells, and microbial agents—challenges and limitations DOI Creative Commons
Hamed Afkhami, Aref Yarahmadi,

Shoroq Bostani

и другие.

Discover Oncology, Год журнала: 2024, Номер 15(1)

Опубликована: Дек. 21, 2024

Globally, people widely recognize cancer as one of the most lethal diseases due to its high mortality rates and lack effective treatment options. Ongoing research into therapies remains a critical area inquiry, holding significant social relevance. Currently used treatment, such chemotherapy, radiation, or surgery, often suffers from other problems like damaging side effects, inaccuracy, ability clear tumors. Conventional are usually imprecise ineffective develop resistance treatments recurs. Cancer patients need fresh innovative that can reduce effects while maximizing effectiveness. In recent decades several breakthroughs in these, areas medical research, have paved way for new avenues fighting including more focused alternatives. This study reviews exciting possibilities mesenchymal stem cells (MSCs), nanomaterials, microbial agents modern realm treatment. Nanoparticles (NPs) demonstrated surprisingly potential. They improve drug delivery systems (DDS) significantly, enhance imaging techniques remarkably, target selectively protecting healthy tissues. MSCs play double role tissue repair vehicle novel gene NPs loaded with therapeutic agents. Additionally, utilizing agents, particularly those involving bacteria, offer an inventive approach review investigates potential MSCs, addressing shortcomings conventional therapies. We will also discuss challenges limitations using these approaches.

Язык: Английский

Процитировано

7

Gut microbiota derived DCA enhances FOLFOX efficacy via Ugt1a6b mediated enterohepatic circulation in colon cancer DOI Creative Commons
Fang Qian, Xiaoying Hou, Limei Fan

и другие.

Pharmacological Research, Год журнала: 2025, Номер 213, С. 107636 - 107636

Опубликована: Фев. 1, 2025

FOLFOX (5-Fluorouracil, Calcium Folinate combined with Oxaliplatin) is a preferred chemotherapy regimen for colon cancer, but its limited efficacy remains major challenge, significantly impairs patient outcomes. There an urgent need to identify strategies improve therapeutic effectiveness. Our previous studies have suggested that gut microbiota-derived bile acids may be involved in the anticancer effect of vitro, however, underlying mechanism unclear. In this study, we investigated role modulating and related mechanisms. We first demonstrated depletion (cholestyramine treatment) enhanced orthotopic cancer mouse model, suggesting play key FOLFOX's effects. Further, based on system screen 15 via MTT, colony formation flow cytometry assay, Deoxycholic Acid (DCA) Glycodeoxycholic (GDCA) were annotated as potential modulators efficacy. Among these, DCA was further validated enhance anti-colon effects vivo. Transcriptomic analysis subsequent biological experiments revealed Ugt1a6b. conclusion, our findings establish enhances potentially Ugt1a6b mediated enterohepatic circulation, providing novel insights into synergistic strategy improving treatment.

Язык: Английский

Процитировано

1