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Xu Y, Shan W, Luo Q, Zhang M, Huo D, Chen Y, Li H, Ye Y, Yu X, Luo Y, Huang H. Establishment of a humanized mouse model using steady-state peripheral blood-derived hematopoietic stem and progenitor cells facilitates screening of cancer-targeted T-cell repertoires. CANCER INNOVATION 2024; 3:e118. [PMID: 38947755 PMCID: PMC11212321 DOI: 10.1002/cai2.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/19/2023] [Accepted: 01/19/2024] [Indexed: 07/02/2024]
Abstract
Background Cancer-targeted T-cell receptor T (TCR-T) cells hold promise in treating cancers such as hematological malignancies and breast cancers. However, approaches to obtain cancer-reactive TCR-T cells have been unsuccessful. Methods Here, we developed a novel strategy to screen for cancer-targeted TCR-T cells using a special humanized mouse model with person-specific immune fingerprints. Rare steady-state circulating hematopoietic stem and progenitor cells were expanded via three-dimensional culture of steady-state peripheral blood mononuclear cells, and then the expanded cells were applied to establish humanized mice. The human immune system was evaluated according to the kinetics of dendritic cells, monocytes, T-cell subsets, and cytokines. To fully stimulate the immune response and to obtain B-cell precursor NAML-6- and triple-negative breast cancer MDA-MB-231-targeted TCR-T cells, we used the inactivated cells above to treat humanized mice twice a day every 7 days. Then, human T cells were processed for TCR β-chain (TRB) sequencing analysis. After the repertoires had been constructed, features such as the fraction, diversity, and immune signature were investigated. Results The results demonstrated an increase in diversity and clonality of T cells after treatment. The preferential usage and features of TRBV, TRBJ, and the V-J combination were also changed. The stress also induced highly clonal expansion. Tumor burden and survival analysis demonstrated that stress induction could significantly inhibit the growth of subsequently transfused live tumor cells and prolong the survival of the humanized mice. Conclusions We constructed a personalized humanized mouse model to screen cancer-targeted TCR-T pools. Our platform provides an effective source of cancer-targeted TCR-T cells and allows for the design of patient-specific engineered T cells. It therefore has the potential to greatly benefit cancer treatment.
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Affiliation(s)
- Yulin Xu
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Wei Shan
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Qian Luo
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Meng Zhang
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Dawei Huo
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Yijin Chen
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Honghu Li
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Yishan Ye
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Xiaohong Yu
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Yi Luo
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - He Huang
- Bone Marrow Transplantation Center, The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Liangzhu LaboratoryZhejiang UniversityHangzhouChina
- Institute of HematologyZhejiang UniversityHangzhouChina
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity TherapyHangzhouChina
- School of MedicineZhejiang UniversityHangzhouChina
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Zhao J, Yan S, Ma X, Song Y, Pan Y. Nrf2 regulates the activation of THP-1 cells induced by chloral hydrate. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114841. [PMID: 36989555 DOI: 10.1016/j.ecoenv.2023.114841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 03/21/2023] [Accepted: 03/25/2023] [Indexed: 06/19/2023]
Abstract
Trichloroethylene (TCE) triggers a severe hypersensitivity syndrome in the occupational population dependent on dendritic cells (DCs). Chloral hydrate (CH), the major oxidative metabolite of TCE, has been proved to be the culprit causative substance of TCE-induced hypersensitivity by human patch tests. Because redox imbalance is essential for chemical sensitizers-induced maturation of DCs, we predicted that CH would activate DCs by the nuclear factor E2-related factor 2 (Nrf2)-mediated antioxidant response. This study selected THP-1 cells as the in vitro DC model, and we evaluated the cell activation markers, intracellular oxidative stress, and Nrf2 pathway related genes expression in response to CH in THP-1 cells. CH displayed significant stimulation of THP-1 cells activation, including CD54 and CD86 expression, IL-8 release, and cell migration, and damaged the redox balance by triggering ROS generation, GSH consumption, and antioxidase activities modulation. The levels of Nrf2 and its downstream genes (HO-1 and NQO1) in mRNA and protein expressions were upregulated by CH, and CH also promoted the nuclear translocation of Nrf2. Subsequently, we investigated the effects of antioxidant on Nrf2-mediated cell defense in CH treated cells. Pretreatment with curcumin dramatically reduced cell activation and oxidative stress triggered by CH in THP-1 cells. We also confirmed the specific role of Nrf2 in CH-induced cell activation using NRF2-knockout cells. Deficiency of Nrf2 inhibited cell activation and downregulated HO-1 and NQO1 expression in CH-challenged cells. These findings suggest that Nrf2-dependent redox homeostasis plays a pivotal role in CH-induced activation of THP-1 cells, thereby providing new knowledge of the allergen as well as the molecular mechanism involving in TCE-induce hypersensitivity syndrome.
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Affiliation(s)
- Jinfeng Zhao
- Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; Beijing Key Laboratory of Plant Research and Development, Beijing 100048, China
| | - Shiyu Yan
- Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; Beijing Key Laboratory of Plant Research and Development, Beijing 100048, China
| | - Xue Ma
- Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; Beijing Key Laboratory of Plant Research and Development, Beijing 100048, China
| | - Yanqing Song
- Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; Beijing Key Laboratory of Plant Research and Development, Beijing 100048, China
| | - Yao Pan
- Department of Cosmetics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; Beijing Key Laboratory of Plant Research and Development, Beijing 100048, China.
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Wang F, Hong Y, Jiang W, Wang Y, Chen M, Zang D, Zhu Q. ROS-mediated inflammatory response in liver damage via regulating the Nrf2/HO-1/NLRP3 pathway in mice with trichloroethylene hypersensitivity syndrome. J Immunotoxicol 2022; 19:100-108. [PMID: 36070617 DOI: 10.1080/1547691x.2022.2111003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Trichloroethylene hypersensitivity syndrome (THS), mainly caused by occupational exposure to trichloroethylene (TCE), can give rise to serious and fatal hepatic damage. To date, the precise mechanisms of hepatic damage in THS remain unclear. Recent studies showed that reactive oxygen species (ROS) play a core role in cell death and inflammatory response. Therefore, the present study sought to explore whether ROS-mediated inflammatory responses contribute to the hepatic damage in TCE sensitization. To this end, a mouse model of TCE sensitization was established; in some cases, hosts were pretreated with tempol, an ROS scavenger. The results showed that TCE sensitization caused hepatic pathological/functional changes, ROS generation, and oxidative stress, alterations of the anti-oxidant defense Nrf2/HO-1/NLRP3 pathway, and pro-inflammatory cytokine formation in the liver. ROS scavenging via pretreatment with tempol was found not only to inhibit the hepatic oxidative stress, but also to regulate Nrf2/HO-1/NLRP3 pathway activity. In all cases, tempol was able to mitigate the pathologic changes induced by TCE sensitization. In summary, the results here demonstrated a novel molecular mechanism wherein ROS-mediated inflammatory responses play a central role in TCE-induced liver damage. Therapies targeting ROS scavenging could help to protect against hepatic damage by regulating Nrf2/HO-1/NLRP3 pathway activities in TCE-sensitized hosts.
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Affiliation(s)
- Feng Wang
- Department of Dermatology, Second Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Ministry of Education, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yiting Hong
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Wei Jiang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Yican Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Muyue Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Dandan Zang
- Center for Scientific Research and Experiment, Anhui Medical University, Hefei, China
| | - Qixing Zhu
- Key Laboratory of Dermatology, Ministry of Education, First Affiliated Hospital of Anhui Medical University, Hefei, China.,Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China
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Dong C, Dang L, Gao X, Xu R, Zhang H, Zhang X. Systematic Analysis of Tumor Microenvironment Patterns and Oxidative Stress Characteristics of Endometrial Carcinoma Mediated by 5-Methylcytosine Regulators. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6431164. [PMID: 36187339 PMCID: PMC9519350 DOI: 10.1155/2022/6431164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 11/20/2022]
Abstract
As a widely distributed RNA methylation modification, m5C is involved in the regulation of tumorigenesis. Nevertheless, its fundamental process is not clear. This research sought to examine the genetic properties of the 5-methylcytosine (m5C) regulator in endometrial carcinoma, as well as the prognostic significance and impact of m5C regulators on oxidative stress. Therefore, the TCGA-UCEC data set was used to explore the characteristics of 17 RNAm5C-related genes in the transcriptome, genome, and regulatory network. The subtypes of RNAm5C in UCEC were identified based on the expression levels of 17 RNAm5C-related genes. The prognosis of RNAm5C-2 was significantly better than that of RNAm5C-1. Then, we examined the differences (variations) across various subtypes in terms of immune cell infiltration (ICI) as well as the expression of immune-related signal markers. The findings demonstrated that there were distinct variations in the infiltration level of immune cells in each subtype, which may be the reason for the differences in the prognosis of each subtype. In addition, the differentially expressed genes (DEGs) among RNAm5C subtypes of different UCEC tumors were identified, and the DEGs significant for survival were screened. After obtaining 34 prognostic genes, the dimensionality was reduced to construct an RNA methylation score (RS). As per the findings, RS is a more accurate marker for determining the prognosis for patients with endometrial cancer. The RS was used to categorize UCEC tumor samples, and these results led to the formation of high-score and low-score groups. The patients in the group with a high-RNA methylation score exhibited a survival time that was considerably longer in contrast with those in the group with a low-RNA methylation score. The capacity of RS to predict whether or not immunotherapy would be beneficial was explored further. In the group with a high-RNA methylation score, the objective response rate to the anti-PD-L1 therapy was substantially greater compared to that observed in the subgroup with a low-RNA methylation score. Additionally, there were variations across various RS groups in terms of clinical features, tumor mutation burden, and the infiltration level of immune cells. After binary tree analysis and PCR verification of 34 prognostic genes, it is finally found that the six genes of MAGOH3P, TRBJ2_3, YTHDF1P1, RP11_323D18.5, RP11_405M12.2, and ADAM30 are significantly overexpressed in cancer tissues. These genes can be used as potential biomarkers of endometrial cancer and provide data support for precise immunotherapy in UCEC tumors.
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Affiliation(s)
- Chunli Dong
- Department of Anesthesiology and Operation, The Second Affiliated Hospital of Xi'an Jiaotong University, China
| | - Ling Dang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Xi'an Jiaotong University, China
| | - Xiaocui Gao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Xi'an Jiaotong University, China
| | - Renyan Xu
- Department of Anesthesiology and Operation, The Second Affiliated Hospital of Xi'an Jiaotong University, China
| | - Hui Zhang
- Department of Anesthesiology and Operation, The Second Affiliated Hospital of Xi'an Jiaotong University, China
| | - Xin Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Xi'an Jiaotong University, China
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