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Efficacy and safety of immunotherapy combined with anti-vascular therapy and precision microbiota transplantation in the treatment of advanced colorectal cancer

ABSTRACT: Interventions: one:Efficacy and safety of nvolimab, lenvatinib mesylate combined with precision microbiota transplantation Primary outcome(s): Objective Response Rate (ORR) Study Design: Single arm

DISEASE(S): Advanced Colorectal Cancer

PROVIDER: 36430 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Gut microbiota transplantation in conventional mice

Project description:Gut microbiota dysbiosis characterizes systemic metabolic alteration, yet its causality is debated. To address this issue, we transplanted antibiotic-free conventional wild-type mice with either dysbiotic (“obese”) or eubiotic (“lean”) gut microbiota and fed them either a NC or a 72%HFD. We report that, on NC, obese gut microbiota transplantation reduces hepatic gluconeogenesis with decreased hepatic PEPCK activity, compared to non-transplanted mice. Of note, this phenotype is blunted in conventional NOD2KO mice. By contrast, lean microbiota transplantation did not affect hepatic gluconeogenesis. In addition, obese microbiota transplantation changed both gut microbiota and microbiome of recipient mice. Interestingly, hepatic gluconeogenesis, PEPCK and G6Pase activity were reduced even once mice transplanted with the obese gut microbiota were fed a 72%HFD, together with reduced fed glycaemia and adiposity compared to non-transplanted mice. Notably, changes in gut microbiota and microbiome induced by the transplantation were still detectable on 72%HFD. Finally, we report that obese gut microbiota transplantation may impact on hepatic metabolism and even prevent HFD-increased hepatic gluconeogenesis. Our findings may provide a new vision of gut microbiota dysbiosis, useful for a better understanding of the aetiology of metabolic diseases. all livers are from NC-fed mice only.

2017-03-16 | GSE81318 | GEO

Faecal Microbiota Transplantation After Allogeneic Stem Cell Transplantation

Project description:The aim of this study is to assess the Fecal Microbiota Transplantation (FMT) efficacy in the prevention of allogeneic hematopoietic stem cell transplantation (allo-HSCT) complications and particularly Graft versus Host Disease (GvHD). The hypothesis of this study is that allogeneic FMT may improve outcomes of these patients.

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Impact of fecal microbiota transplantation (FMT) in 3 days-ABX-treated recipient mice using feces from 6 NSCLC patients at diagnosis.

Project description:This study aimed to analyze changes in gut microbiota composition in mice after transplantation of fecal microbiota (FMT, N = 6) from the feces of NSCLC patients by analyzing fecal content using 16S rRNA sequencing, 10 days after transplantation. Specific-pathogen-free (SPF) mice were used for each experiments (N=4) as controls.

2023-07-01 | E-MTAB-12812 | biostudies-arrayexpress

Fecal Microbiota Transplantation for Metabolic Syndrome

Project description:Fecal Microbiota Transplantation for Metabolic Syndrome

| PRJEB46778 | ENA

Fecal Microbiota Transplantation for Ulcerative Colitis.

Project description:Fecal Microbiota Transplantation for Ulcerative Colitis.

| PRJEB46777 | ENA

Washed Microbiota Transplantation for The Treatment of Oncotherapy-Related Intestinal Complications

Project description:Gut microbiota, known as "unrecognized organs", is closely related to the occurrence and development of tumors. Cancer is thought to occur secondary to local chronic inflammation. And some bacteria, such as Helicobacter pylori, also have direct genotoxicity, changing intracellular signaling pathways and thus causing abnormal cell growth. Systemic intestinal dysbiosis may lead to cancer, and fecal microbiota transplantation (FMT) can be a new weapon in anti-cancer treatment.Washed microbiota transplantation (WMT), a new stage of FMT, is based on the automatic microfiltration machine (GenFMTer, Nanjing, China) and the following repeated centrifugation plus suspension with support from specific facilities.we conducted a prospective, one-arm, open-label study on the efficacy and safety of WMT in the treatment of oncotherapy-related complications. This study aimed to exploring the therapeutic potential of WMT in the treatment of oncotherapy-related intestinal complications and improving the quality of life of patients.

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Gene expression profile of small intestine tissue from C57BL/6 mice with or without faecal microbiota transplantation

Project description:To further decipher the alteration of gene expression profile of irradiated mice with or without faecal microbiota transplantation (FMT), we performed FMT for 10 days following total body irradiaton (6.5 Gy gamma ray). Twenty-one days after irradiation, the mice were euthanized and the small intestine tissues excised.

2016-12-13 | GSE92249 | GEO

Fecal microbiota transplantation alleviates diabetes peripheral neuropathy

Project description:Fecal microbiota transplantation alleviates diabetes peripheral neuropathy

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Faecal microbiota transplantation in pigs

Project description:Faecal microbiota transplantation in pigs in order to improve feed efficiency

| PRJEB22181 | ENA

Fecal microbiota transplantation from young donor mice rejuvenates hematopoietic stem cell in aged recipients by suppressing inflammatory signals while modulating gut microbiota and metabolites

Project description:Hematopoietic stem cell (HSC) aging is accompanied by hematopoietic reconstitution dysfunction, including loss of regenerative and engraftment ability, myeloid differentiation bias and elevated risks of hematopoietic malignancies. Gut microbiota, a key regulator of host health and immunity, has been recently reported to impact hematopoiesis. However, there is currently no empirical evidence elucidating the direct impact of gut microbiome on aging hematopoiesis. To assess these potential effects, we performed fecal microbiota transplantation (FMT) from young mice to aged mice and observed an increment in both the absolute number and the engraftment ability of HSCs. Single cell RNA sequencing depicted overall transcriptional changes of HSCs as well as the bone marrow microenvironment and indicated that gut microbiota from young mice enhanced cell cycle activity of HSCs, attenuated canonical inflammatory signals and mitigated inflammation-associated phenotypes in aging hematopoiesis. Integrated microbiome-metabolome analysis uncovered that FMT reshaped gut microbiota construction and metabolite landscape, while the administration of Lachnospiraceae and tryptophan-associated metabolites promoted the recovery of hematopoiesis and rejuvenated aged HSCs. Together, our results highlighted the paramount importance of the gut microbiota in HSC aging and provided a strong rationale to limit hematopoietic exhaustion and treat hematologic disorders.

2023-08-15 | GSE201920 | GEO

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