Unique ID issued by UMIN | UMIN000054016 |
---|---|
Receipt number | R000061667 |
Scientific Title | Alteration of T-cell immunity by yogurt containing exopolysaccharide (EPS) |
Date of disclosure of the study information | 2024/04/01 |
Last modified on | 2024/03/30 13:06:14 |
Alteration of T-cell immunity by yogurt containing exopolysaccharide (EPS)
Alteration of T-cell immunity by yogurt
Alteration of T-cell immunity by yogurt containing exopolysaccharide (EPS)
Alteration of T-cell immunity by yogurt
Japan |
Non-small cell lung cancer
Pneumology |
Malignancy
NO
Dr. Kawanabe et al. reported that oral intake of exopolysaccharide (EPS) produced by lactic acid bacteria of the genus Lactobacillus increased the proliferation of CCR6-positive CD8+ T cells in Peyer's patches and enhanced the anti-tumor effect of immune checkpoint inhibitors The applicant and his colleagues have reported that oral intake of PD-1 inhibitor (EPS) enhances the anti-tumor effect of immune checkpoint inhibitors.
The applicants have previously reported the discovery of a novel CD4+ T-cell cluster, Th7R, which is expressed as CCR4-CCR6+ in the peripheral blood of patients with advanced stage lung cancer who had responded to PD-1 inhibitors. We have reported that the percentage of Th7R in peripheral blood before treatment can predict the efficacy of immune checkpoint inhibitors in patients with advanced stage non-small cell lung cancer and recurrence-free survival after surgery in patients with early stage lung cancer. In long-term survivors of advanced stage non-small cell lung cancer after immune checkpoint inhibitor therapy and recurrence-free survivors of postoperative early stage non-small cell lung cancer, a high percentage of CCR4-CCR6+ CD4+ T cell clusters were maintained after treatment.
This study aims to analyze the numerical changes in CCR6-positive T cells including Th7R by analyzing the peripheral blood of lung cancer patients who consume Meiji Probio Yogurt R-1, a food containing this EPS, over time.
Others
1. PBMCs are centrifuged by standard techniques after blood collection and cryopreserved by CellBanker2TM. Whole blood samples will be analyzed within 3 days of storage at room temperature. 2.
2. Whole blood samples will be analyzed by flow cytometry for T-cell clusters and other cellular components on behalf of Immunity Research, Inc.
3. Frozen blood samples collected from BD Vacutina CPT blood collection tubes will be subjected to immune cell cluster analysis by mass cytometry after regenerative culture. 4) The mRNA expression of isolated T cells will be analyzed.
4. mRNA expression analysis of isolated T cells and T cell receptor repertoire analysis will be performed using single cell RNA sequencing.
5. Immunohistochemical staining analysis of tissue samples
Exploratory
Others
Not applicable
CCR6-positive T cells (CD8+, CD4+) in blood
Changes in T-cell cluster proportions, changes in expression of functional molecules in each T-cell cluster, immunohistochemical staining analysis of lung cancer biopsy specimens
Interventional
Single arm
Non-randomized
Open -no one is blinded
Historical
1
Prevention
Food |
Test Food Meiji Probio Yogurt R-1 Drink Type 112 g (provided free of charge by Meiji Holdings)
Consume one bottle of the test food once a day for 28 days. The time of intake is free.
20 | years-old | <= |
Not applicable |
Male and Female
(1) Patients diagnosed with non-small cell lung cancer
(2) Patients who are 20 years of age or older at the time of consent
(3) Patients whose written consent for this study has been obtained.
(1) Patients with psychosis/psychiatric symptoms that make it difficult for them to participate in this study
(2) Patients with milk allergy
(3) Patients with poorly controlled diabetes mellitus
(4) Patients who do not wish to consume Meiji Probio Yogurt R-1
(5) Other patients who are deemed inappropriate for the study by the physician in charge.
100
1st name | Hiroshi |
Middle name | |
Last name | Kagamu |
Saitama Medical University International Medical Center
Div. of Respiratory Medicine
350-1298
1397-1 Yamane, Hidaka city, Saitama pref.
042-984-4581
kagamu19@saitama-med.ac.jp
1st name | Hisao |
Middle name | |
Last name | Imai |
Saitama Medical University International Medical Center
Div. of Respiratory Medicine
350-1298
1397-1 Yamane, Hidaka city, Saitama pref.
042-984-4511
hisao725@saitama-med.ac.jp
Saitama Medical University
Meiji Holdings Co.
Profit organization
Saitama Medical University International Medical Center Clinical Research IRB
1397-1 Yamane, Hidaka city, Saitama pref.
042-984-4523
imc_irb@saitama-med.ac.jp
NO
2024 | Year | 04 | Month | 01 | Day |
Unpublished
Preinitiation
2024 | Year | 03 | Month | 26 | Day |
2024 | Year | 03 | Month | 26 | Day |
2024 | Year | 04 | Month | 15 | Day |
2025 | Year | 12 | Month | 31 | Day |
2024 | Year | 03 | Month | 30 | Day |
2024 | Year | 03 | Month | 30 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000061667