Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomes
IntroductionTumor microenvironment (TME) has been shown to be extensively involved in tumor development. However, the dynamic change of TME components and their effects are still unclear. Here, we attempted to identify TME-related genes that could help predict survival and may be potential therapeut...
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| Format: | Article |
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Frontiers Media S.A.
2022-12-01
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| Series: | Frontiers in Immunology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fimmu.2022.909932/full |
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| author | Yi He Haiting Zhou Xiaojian Huang Yunkun Qu Yingguang Wang Wenbin Pei Rui Zhang Sheng Chen Hongbo You |
| author_facet | Yi He Haiting Zhou Xiaojian Huang Yunkun Qu Yingguang Wang Wenbin Pei Rui Zhang Sheng Chen Hongbo You |
| author_sort | Yi He |
| collection | DOAJ |
| description | IntroductionTumor microenvironment (TME) has been shown to be extensively involved in tumor development. However, the dynamic change of TME components and their effects are still unclear. Here, we attempted to identify TME-related genes that could help predict survival and may be potential therapeutic targets.MethodsData was collected from UCSC Xena and GEO database. ESTIMATE and CIBERSORT algorithms were applied to estimate the components and the proportions of TIICs in TME. We analyzed the gene expression differences of immune components and stromal components, respectively, and finally got the overlapped DEGs. Through protein-protein interaction (PPI) network and univariate Cox regression analysis based on shared DEGs, we screened out and validated the TME-related genes. Focusing on this gene, we analyzed the expression and prognostic value of this gene, and investigated its relationship with immune cells by correlation analysis, single cell analysis, immunohistochemistry and immunofluorescence analysis.ResultsThrough a series analysis, we found that the proportion of immune and stromal components was an important prognostic factor, and screened out a key gene, LPAR5, which was highly correlated with prognosis and metastasis. And the expression of LPAR5 was positively correlated with immune cells, especially macrophages, indicating LPAR5+ macrophages played an important role in tumor microenvironment of osteosarcoma. Meanwhile, the genes in LPAR5 high expression group were enriched in immune-related activities and pathways, and differentially expressed genes between LPAR5+ macrophages and LPAR5- macrophages were enriched in the biological processes associated with phagocytosis and antigen presentation. What’ more, we found that LPAR5 was mainly expressed in TME, and high LPAR5 expression predicting a better prognosis.ConclusionWe identified a TME-related gene, LPAR5, which is a promising indicator for TME remodeling in osteosarcoma. Particularly, LPAR5+ macrophages might have great potential to be a prognostic factor and therapeutic target for osteosarcoma. |
| first_indexed | 2024-04-13T04:20:39Z |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-04-13T04:20:39Z |
| publishDate | 2022-12-01 |
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| series | Frontiers in Immunology |
| spelling | doaj.art-c465bc62d5da445cac4a1626f84a533e2022-12-22T03:02:46ZengFrontiers Media S.A.Frontiers in Immunology1664-32242022-12-011310.3389/fimmu.2022.909932909932Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomesYi He0Haiting Zhou1Xiaojian Huang2Yunkun Qu3Yingguang Wang4Wenbin Pei5Rui Zhang6Sheng Chen7Hongbo You8Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaDepartment of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, ChinaIntroductionTumor microenvironment (TME) has been shown to be extensively involved in tumor development. However, the dynamic change of TME components and their effects are still unclear. Here, we attempted to identify TME-related genes that could help predict survival and may be potential therapeutic targets.MethodsData was collected from UCSC Xena and GEO database. ESTIMATE and CIBERSORT algorithms were applied to estimate the components and the proportions of TIICs in TME. We analyzed the gene expression differences of immune components and stromal components, respectively, and finally got the overlapped DEGs. Through protein-protein interaction (PPI) network and univariate Cox regression analysis based on shared DEGs, we screened out and validated the TME-related genes. Focusing on this gene, we analyzed the expression and prognostic value of this gene, and investigated its relationship with immune cells by correlation analysis, single cell analysis, immunohistochemistry and immunofluorescence analysis.ResultsThrough a series analysis, we found that the proportion of immune and stromal components was an important prognostic factor, and screened out a key gene, LPAR5, which was highly correlated with prognosis and metastasis. And the expression of LPAR5 was positively correlated with immune cells, especially macrophages, indicating LPAR5+ macrophages played an important role in tumor microenvironment of osteosarcoma. Meanwhile, the genes in LPAR5 high expression group were enriched in immune-related activities and pathways, and differentially expressed genes between LPAR5+ macrophages and LPAR5- macrophages were enriched in the biological processes associated with phagocytosis and antigen presentation. What’ more, we found that LPAR5 was mainly expressed in TME, and high LPAR5 expression predicting a better prognosis.ConclusionWe identified a TME-related gene, LPAR5, which is a promising indicator for TME remodeling in osteosarcoma. Particularly, LPAR5+ macrophages might have great potential to be a prognostic factor and therapeutic target for osteosarcoma.https://www.frontiersin.org/articles/10.3389/fimmu.2022.909932/fulltumor microenvironmentmacrophageestimateCIBERSORTosteosarcomaLPAR5 |
| spellingShingle | Yi He Haiting Zhou Xiaojian Huang Yunkun Qu Yingguang Wang Wenbin Pei Rui Zhang Sheng Chen Hongbo You Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomes Frontiers in Immunology tumor microenvironment macrophage estimate CIBERSORT osteosarcoma LPAR5 |
| title | Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomes |
| title_full | Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomes |
| title_fullStr | Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomes |
| title_full_unstemmed | Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomes |
| title_short | Infiltration of LPAR5+ macrophages in osteosarcoma tumor microenvironment predicts better outcomes |
| title_sort | infiltration of lpar5 macrophages in osteosarcoma tumor microenvironment predicts better outcomes |
| topic | tumor microenvironment macrophage estimate CIBERSORT osteosarcoma LPAR5 |
| url | https://www.frontiersin.org/articles/10.3389/fimmu.2022.909932/full |
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