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Phase II study of peptide vaccination for patients with metastatic lung or gastro-intestinal tract cancers

ABSTRACT: Interventions: peptide vaccinnation Primary outcome(s): Evaluation of efficacy by RECIST criteria Study Design: Single arm Non-randomized

DISEASE(S): Lung Cancer, Pharyngeal Cancer, Gastric Cancer, Jejunal Cancer, Ileal Cancer, Pancreas Cancer, Biliary Tract Cancer, Soft Tissue Sarcoma

PROVIDER: 2618328 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Biomarkers of human gastro-intestinal tract regions

Project description:Background and aims: Dysregulation of intestinal epithelial cells performance associates with an array of pathologies whose onset mechanisms are incompletely understood. The aim of the present study was to provide a map of gene expresssion patterns along the human healthy adult gastro-intestinal tract and to implement a new procedure for microarray data noise filtering that would allow their use as a reference when screening for pathological deviations, such as inflammatory bowel disease (IBD). Methods: Gene expression profiles in antrum, duodenum, jejunum, ileum and transverse colon biopsies were measured with the Affymetrix U133A array and principal component analysis was used to identify region-selective biomarkers. These data were intersected with highly variable genes from a public dataset of gene expression in the ileal and colonic healthy regions of UC and Crohn’s disease patients. Moreover, gene sets covering gut functions not entirely accounted for by the available public tools were constructed to monitor their expression along the GI tract. Results: 166 genes were found to be responsible for distinguishing the five regions considered. Fourteen had never been described in the GI tract, including a semaphorin probably implicated in pathogen invasion, and six other novel genes. Similar analysis of the IBD datasets revealed that samples stratify based on disease rather than on the intestinal region. This withstanding, eleven genes were identified as possible early predictors of Crohn’s and/or UC in ileum and/or colon. These include CLCA4 and SLC26A2, both implicated in ion transport. Conclusions: This novel approach, validated by retrieving known gene profiles, allowed the identification of promising new leads both in health and IBD state. Keywords: gastro-intestinal tract comparison

2010-03-20 | GSE10867 | GEO

Micronutrient Food Supplements in Patients with Gastro-Intestinal and Hepatic Cancers.

Project description: Not available

| S-EPMC8347237 | biostudies-literature

Hindgut defects and transformation of the gastro-intestinal tract in Tcf4(-/-)/Tcf1(-/-) embryos.

Project description: Not available

| S-EPMC394245 | biostudies-literature

A phase II clinical study of cancer vaccine with Survivin helper peptide for patients with advanced/recurrent colorectal cancers

Project description:Interventions: 1st and 2nd duration of therapy: Subcutaneous injection of Survivin-hepler pepitde (1 mg) vaccine, mixed with Montanide and OK432 (Picibanil; 0.02 KE), at every two weeks, repeated 4 times 3rdduration of therapy: Subcutaneous injection of Survivin-hepler pepitde (1 mg) vaccine, mixed with Montanide and OK432 (Picibanil; 0.02 KE), at every four weeks, repeated 4 times Primary outcome(s): Tumor response: Disease control rate (DCR), best over- all response assessed according to the Response Evaluation Criteria in Solid Tumors (RECIST) after Survivin helper peptide vaccine Study Design: Single arm Non-randomized

| 2622923 | ecrin-mdr-crc

Identification of Rothia bacteria as gluten-degrading natural colonizers of the upper gastro-intestinal tract.

Project description: Not available

| S-EPMC3177827 | biostudies-literature

Transcription profiling of mouse gastro intestinal tract after conventional and germ free treatments

Project description:Whole tissues corresponding to the corpus, jejunum, descending colon and rectum were dissected from each mouse, washed with ice-cold PBS, placed into 2ml of RNA-later and flash-frozen in liquid nitrogen. The corpus was defined as the part of the stomach different from the antrum (distinguished by a difference in colour). The jejunum was defined as the tissue between the first 4 cm and the last 2 cm of the small intestinal tube. The descending colon and the rectum were defined as the last 3 cm of the digestive tube, where the first 2 cm was the descending colon and the last centimetre was the rectum.

2007-09-29 | E-GEOD-1392 | biostudies-arrayexpress

Changes in gene expression in Pan02 tumors after TGFb-derived peptide vaccination

Project description:To investigate changes in the tumor microenvironment at a gene expression level induced by TGFb-derived peptide vaccination in a murine model of PDAC (Pan02)

2022-12-14 | GSE206764 | GEO

Inhibition of Tumor Growth and Metastasis by EMMPRIN Multiple Antigenic Peptide (MAP) Vaccination Is Mediated by Immune Modulation

Project description:We report here that a EMMPRINs-specific cancer peptide vaccination, where the peptide was modified and synthesied as a multiple antigenic peptide (MAP), significantly inhibited tumor growth and metastases. Specifically, we describe changes in the gene expression profile as assessed by RNAseq in tumors derived from mice implanted with the colon tumorigenic carcinoma (CT26 cells), and vaccinated with either a control scrambled multiple antigenic peptide (Scr-MAP) or with an epitope-specific EMMPRIN multiple antigenic peptide (designated 161-MAP).

2019-08-06 | GSE85440 | GEO

Personalized neoantigen peptide vaccine for advanced solid cancer

Project description:Interventions: Personalized neoantigen peptide vaccine consists of 15-30 long peptides combined into four distinct immunizing peptide pools with 0.3 mg of each peptide admixed with 0.5 mg poly-ICLC per pool in a volume of 1 ml.;Experimental Biological/Vaccine;Personalized Neoantigen Peptide vaccine Primary outcome(s): Overall response rate at week 9, 18 on treatment period and every 12 weeks until disease progression or up to 12 months modified RECIST 1.1

| 2568253 | ecrin-mdr-crc

Differential gene expression in W614A-3S peptide-specific B cell populations following W614A-3S peptide-KLH vaccination using Squalene emulsion and Alum formulation

Project description:W614A-3S peptide is a modified 3S motif of the HIV-gp41 (mutation W614A). We previously detected the presence of natural neutralizing antibodies directed against W614A-3S peptide (NAbs) in long-term non-progressor HIV+ patients. Here, we compared the efficacy of W614A-3S peptide formulated in either squalene emulsion (SQE) or in aluminum hydroxide (Alum) in inducing broadly-NAbs (bNAbs). Rabbit and mouse models were used to screen the induction of bNAbs following 4 immunizations. SQE was more efficient than Alum formulation in inducing W614A-3S-specific bNAbs with up to 67-93% of HIV strains neutralized. We then analyzed the quality of peptide-specific murine B cells by single-cell gene expression by quantitative Reverse Transcription-PCR and single-cell V(D)J sequencing. We found more frequent germinal center B cells in SQE than in Alum, albeit with a different gene expression profile. The V(D)J sequencing of W614A-3S-specific BCR showed significant differences in BCR sequences and validates the dichotomy between adjuvant formulations. All sixteen BCR sequences which were cloned were specific of peptide. Adjuvant formulations of W614A-3S-peptide-conjugated immunogen impact the quantity and quality of B cell immune responses at both the gene expression level and BCR sequence. We used a single-cell quantitative Reverse Transcription-PCR (qRT-PCR) approach to compare between the two formulations the quality of W614A-3S-specific B cell populations isolated from draining lymph nodes, one week after 2nd and 3rd immunizations (W3 and W5, respectively).

2022-03-19 | GSE198952 | GEO

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