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Ma WJ, Li ZH, Wu ZR, Liu F, Wang JK, Shi YJ, Jin YW, Li FY. PI3K-CCL2-CCR2-MDSCs axis: A potential pathway for tumor Clostridia-promoted CD 8 + T lymphocyte infiltration in bile tract cancers. Neoplasia 2023; 43:100920. [PMID: 37515847 PMCID: PMC10407443 DOI: 10.1016/j.neo.2023.100920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 07/31/2023]
Abstract
BACKGROUND Most patients with resected bile tract cancers (BTCs) survive for less than 5 years; however, some achieve better prognosis. The tumor microbiome can improve survival by regulating the tumor immune microenvironment. However, whether the tumor microbiome promotes immune cell infiltration in BTCs is unknown. This study aimed to determine the association between CD8+ T lymphocyte infiltration and the tumor microbiome in patients with resected BTCs. METHODS Archived formalin-fixed paraffin-embedded tumor specimens were collected from patients with resected BTCs and analyzed using 16S rRNA gene sequencing to identify that prognosis-related and significantly differentially enriched taxa. Gene ontology (GO) analysis of the differentially enriched taxa was used to assess how CD8+ T lymphocyte infiltration is affected by the tumor microbiome of BTCs. RESULTS We enrolled 32 patients with resected BTCs. The high CD8+ lymphocyte-infiltration (CD8hi) group had four significantly enriched taxa, and in the low CD8+ lymphocyte-infiltration (CD8low) group comprised one significantly enriched taxon. Patients with higher Clostridia abundance (enriched in the CD8hi group) experienced longer overall survival than those with lower abundance. The enrichment of Clostridia in the CD8hi group corresponded with lower CCL2 expression and downregulation of phosphatidylinositol 3-kinase activity, which might decrease myeloid-derived suppressor cell recruitment to the tumor milieu, thus increasing CD8+ lymphocyte infiltration in BTCs. CONCLUSIONS The tumor microbiome is related to CD8+ T lymphocyte infiltration in patients with resected BTCs. The relationship between tumor Clostridia and high infiltration of CD8+ T lymphocytes might reflect decreased recruitment of myeloid-derived suppressor cells via the PI3K-CCL2-CCR2 axis.
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Affiliation(s)
- Wen-Jie Ma
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Center for Biliary Disease, West China Hospital of Sichuan University, Chengdu, China
| | - Zheng-Hua Li
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhen-Ru Wu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Fei Liu
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Center for Biliary Disease, West China Hospital of Sichuan University, Chengdu, China
| | - Jun-Ke Wang
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Center for Biliary Disease, West China Hospital of Sichuan University, Chengdu, China
| | - Yu-Jun Shi
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Yan-Wen Jin
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Center for Biliary Disease, West China Hospital of Sichuan University, Chengdu, China.
| | - Fu-Yu Li
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Center for Biliary Disease, West China Hospital of Sichuan University, Chengdu, China.
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Yuan H, Zhang B, Ma J, Zhang Y, Tuo Y, Li X. Analysis of gene expression profiles in two spinal cord injury models. Eur J Med Res 2022; 27:156. [PMID: 35999613 PMCID: PMC9400253 DOI: 10.1186/s40001-022-00785-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 08/04/2022] [Indexed: 11/25/2022] Open
Abstract
Objectives To analyze the changes of gene expression at different timepoints after spinal cord injury (SCI) with tenth segment thoracic injury. Methods Two SCI models, the complete paraplegia (H) and Allen’s strike (D) methods were applied to induce SCI in rats, and transcriptome sequencing was performed 1, 3, 7, 14, 56, and 70 days after SCI, respectively. Principal component analysis, differentially expressed gene analysis, and hierarchical clustering analysis were applied to analyze the differentially expressed genes (DEGs). Gene Ontology GO enrichment analysis, Kyoto Encyclopedia of Genes and Genomes enrichment analysis, and Gene Set Enrichment Analysis revealed the pathway of gene enrichment. Results There were 1,907, 3,120, 3,728, 978, 2,319, and 3,798 DEGs in the complete paraplegia group and 2,380, 878, 1,543, 6,040, 1,945, and 3,850 DEGs in the Allen’s strike method group and after SCI at 1, 3, 7, 14, 56, and 70 days, respectively. The transcriptome contours of D1, H1, D3, and H14 were clustered with C; the H56, D56, H70, and D70 transcriptome contours were similar and clustered together. H3, D7, and H7 were clustered together, and D14 was clustered separately. The transcriptome differences of the two SCI models were mainly concentrated during the first 2 weeks after SCI. The DEGs after SCI in the complete paraplegia group were more concentrated. Most of the early transcriptional regulation stabilized within 2 weeks after injury. Conclusions There were DEGs between the two SCI models. Through the gene changes and pathway enrichment of the entire time period after SCI, the molecular mechanism of SCI repair was revealed in depth, which provided a reference for SCI treatment in the future.
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Affiliation(s)
- Haifeng Yuan
- Department of Spinal Orthopedics, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Xingqing District, Yinchuan, 750004, China
| | - Bi Zhang
- Department of Anesthesia, Ningbo Medical Center Li Huili Hospital, Ningbo, 315046, China
| | - Junchi Ma
- Department of Orthopaedics, Affiliated Hospital of Gansu College of Traditional Chinese Medicine, Lanzhou, 730099, China
| | - Yufei Zhang
- The third department of spine, Baoji Hospital of Traditional Chinese Medicine, Baoji, 721001, China
| | - Yifan Tuo
- Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, China
| | - Xusheng Li
- Department of Spinal Orthopedics, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Xingqing District, Yinchuan, 750004, China.
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Qi Q, Wang XX, Li JL, Chen YQ, Chang JR, Xi J, Lü HZ, Zhang YX. Neuroprotective Effects of the Pannexin-1 Channel Inhibitor: Probenecid on Spinal Cord Injury in Rats. Front Mol Neurosci 2022; 15:848185. [PMID: 35663270 PMCID: PMC9162172 DOI: 10.3389/fnmol.2022.848185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/01/2022] [Indexed: 11/13/2022] Open
Abstract
Proinflammatory immune cell subsets constitute the majority in the local microenvironment after spinal cord injury (SCI), leading to secondary pathological injury. Previous studies have demonstrated that inflammasomes act as an important part of the inflammatory process after SCI. Probenecid, an inhibitor of the Pannexin-1 channel, can inhibit the activation of inflammasomes. This article focuses on the effects of probenecid on the local immune microenvironment, histopathology, and behavior of SCI. Our data show that probenecid inhibited the expression and activation of nucleotide-binding oligomerization domain receptor pyrindomain-containing 1 (NLRP1), apoptosis-associated speck-like protein containing a CARD (ASC) and caspase-1, interleukin-1β (IL-1β), and caspase-3 proteins associated with inflammasomes, thereby suppressing the proportion of M1 cells. And consequently, probenecid reduced the lesion area and demyelination in SCI. Moreover, the drug increased the survival of motor neurons, which resulted in tissue repair and improved locomotor function in the injured SC. Altogether, existing studies indicated that probenecid can alleviate inflammation by blocking Pannexin-1 channels to inhibit the expression of caspase-1 and IL-1β, which in turn restores the balance of immune cell subsets and exerts neuroprotective effects in rats with SCI.
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Affiliation(s)
- Qi Qi
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
- School of Basic Medicine, Bengbu Medical College, Bengbu, China
| | - Xiao-Xuan Wang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, China
| | - Jing-Lu Li
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
| | - Yu-Qing Chen
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, China
| | - Jian-Rong Chang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
| | - Jin Xi
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
| | - He-Zuo Lü
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, China
- *Correspondence: He-Zuo Lü,
| | - Yu-Xin Zhang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, China
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, China
- Yu-Xin Zhang,
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Abruzzese V, Sukowati CHC, Tiribelli C, Matera I, Ostuni A, Bisaccia F. The Expression Level of ABCC6 Transporter in Colon Cancer Cells Correlates with the Activation of Different Intracellular Signaling Pathways. PATHOPHYSIOLOGY 2022; 29:173-186. [PMID: 35645325 PMCID: PMC9149812 DOI: 10.3390/pathophysiology29020015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022] Open
Abstract
The ATP-binding cassette sub-family C member 6 transporter (ABCC6) is mainly found in the basolateral plasma membrane of hepatic and kidney cells. In hepatocarcinoma HepG2 cells, ABCC6 was involved in cell migration. In the present study, we investigated the role of ABCC6 in colon cancer evaluating the effect of Quercetin and Probenecid, inhibitors of the ectonucleotidase NT5E and ABCC6, respectively, on migration rate of Caco2 and HT29 cell lines. Both drugs reduced cell migration analyzed by scratch test. Gene and protein expression were evaluated by quantitative reverse-transcription PCR (RT-qPCR) and Western blot, respectively. In Caco2 cells, in which ABCC6 is significantly expressed, the addition of ATP restored motility, suggesting the involvement of P2 receptors. Contrary to HT29 cells, where the expression of ABCC6 is negligible but remarkable to the level of NT5E, no effect of ATP addition was detected, suggesting a main role on their migration by the phosphatidylinositol 3′-kinase (PI3K)/Akt system. Therefore, in some colon cancers in which ABCC6 is overexpressed, it may have a primary role in controlling the extracellular purinergic system by feeding it with ATP, thus representing a potential target for a therapy aimed at mitigating invasiveness of those type of cancers.
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Affiliation(s)
- Vittorio Abruzzese
- Department of Sciences, University of Basilicata, 85100 Potenza, Italy; (V.A.); (I.M.)
| | - Caecilia H. C. Sukowati
- Fondazione Italiana Fegato ONLUS, AREA Science Park Basovizza, 34149 Trieste, Italy; (C.H.C.S.); (C.T.)
| | - Claudio Tiribelli
- Fondazione Italiana Fegato ONLUS, AREA Science Park Basovizza, 34149 Trieste, Italy; (C.H.C.S.); (C.T.)
| | - Ilenia Matera
- Department of Sciences, University of Basilicata, 85100 Potenza, Italy; (V.A.); (I.M.)
| | - Angela Ostuni
- Department of Sciences, University of Basilicata, 85100 Potenza, Italy; (V.A.); (I.M.)
- Correspondence: (A.O.); (F.B.)
| | - Faustino Bisaccia
- Department of Sciences, University of Basilicata, 85100 Potenza, Italy; (V.A.); (I.M.)
- Correspondence: (A.O.); (F.B.)
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