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Chang F, Zhang JH, Wu WS, Tang S, Lv Z, Chen FM. FDC-SP as a diagnostic and prognostic biomarker and modulates immune infiltrates in renal cell carcinoma. BMC Bioinformatics 2023; 24:91. [PMID: 36899339 PMCID: PMC10007807 DOI: 10.1186/s12859-023-05215-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/01/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Renal cell carcinoma (RCC), one of the top 10 causes of cancer death, is responsible for more than 90% of all cases of primary renal cancer worldwide. Follicular dendritic cell-secreted protein (FDC-SP) specifically binds to activated B cells and regulates the generation of antibodies. It is also thought to promote cancer cell invasion and migration, which could help with tumor metastases. This study aimed to assess the efficacy of FDC-SP in the diagnosis and prognosis of RCC and to investigate the relationship between immune infiltration in RCC and these outcomes. RESULTS RCC tissues had significantly higher levels of FDC-SP protein and mRNA than normal tissues. The high level of FDC-SP expression was linked to the T stage, histological grade, pathological stage, N stage, M stage, and OS event. Functional enrichment analysis identified the major pathways that were enriched as immune response regulation, complement, and coagulation. Immunological checkpoints and immune cell infiltration were observed to substantially correlate with the levels of FDC-SP expression. FDC-SP expression levels showed the ability to precisely distinguish high-grade or high-stage renal cancer (area under the curve (AUC) = 0.830, 0.722), and RCC patients with higher FDC-SP expression levels had worse prognoses. The AUC values for one-, two-, and five-year survival rates were all greater than 0.600. Moreover, the FDC-SP expression is an independent predictive biomarker of OS in RCC patients. CONCLUSION FDC-SP may be a prospective therapeutic target in RCC as well as a possible diagnostic and prognostic biomarker associated with immune infiltration.
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Affiliation(s)
- Fan Chang
- Department of Urology, The Third Central Clinical College of Tianjin Medical University, Tianjin, 300170, China
| | - Jiang-Hui Zhang
- Department of Urology, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin, 300170, China.,Department of Urology, Nankai University Affinity the Third Central Hospital, Tianjin, 300170, China
| | - Wen-Song Wu
- Department of Urology, The Third Central Clinical College of Tianjin Medical University, Tianjin, 300170, China
| | - Shuai Tang
- Department of Urology, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin, 300170, China.,Department of Urology, Nankai University Affinity the Third Central Hospital, Tianjin, 300170, China
| | - Zheng Lv
- Department of Urology, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin, 300170, China.,Department of Urology, Nankai University Affinity the Third Central Hospital, Tianjin, 300170, China
| | - Fang-Min Chen
- Department of Urology, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin, 300170, China. .,Department of Urology, Nankai University Affinity the Third Central Hospital, Tianjin, 300170, China.
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Nakayama Y, Kobayashi R, Iwai Y, Noda K, Yamazaki M, Kurita-Ochiai T, Yoshimura A, Ganss B, Ogata Y. C/EBPβ and YY1 bind and interact with Smad3 to modulate lipopolysaccharide-induced amelotin gene transcription in mouse gingival epithelial cells. FEBS Open Bio 2019; 9:276-290. [PMID: 30761253 PMCID: PMC6356155 DOI: 10.1002/2211-5463.12566] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/21/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022] Open
Abstract
Junctional epithelium (JE) develops from reduced enamel epithelium during tooth formation and is critical for the maintenance of healthy periodontal tissue through ensuring appropriate immune responses and the rapid turnover of gingival epithelial cells. We have previously shown a relationship between inflammatory cytokines and expression of JE‐specific genes, such as amelotin (AMTN), in gingival epithelial cells. Here, we elucidated the effects of Porphyromonas gingivalis‐derived lipopolysaccharide (PgLPS) on Amtn gene transcription and the interaction of transcription factors. To determine the molecular basis of transcriptional regulation of the Amtn gene by PgLPS, we performed real‐time PCR and carried out luciferase assays using a mouse Amtn gene promoter linked to a luciferase reporter gene in mouse gingival epithelial GE1 cells. Gel mobility shift and chromatin immunoprecipitation assays were performed to identify response elements bound to LPS‐induced transcription factors. Next, we analyzed protein levels of the LPS‐induced transcription factors and the interaction of transcription factors by western blotting and immunoprecipitation. LPS increased Amtn mRNA levels and elevated luciferase activities of constructs containing regions between −116 and −238 of the mouse Amtn gene promoter. CCAAT/enhancer‐binding protein (C/EBP) 1–, C/EBP2– and Ying Yang 1 (YY1)–nuclear protein complexes were increased by LPS treatment. Furthermore, we identified LPS‐modulated interactions with C/EBPβ, YY1 and Smad3. These results demonstrate that PgLPS regulates Amtn gene transcription via binding of C/EBPβ–Smad3 and YY1–Smad3 complexes to C/EBP1, C/EBP2 and YY1 response elements in the mouse Amtn gene promoter.
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Affiliation(s)
- Yohei Nakayama
- Department of Periodontology Nihon University School of Dentistry at Matsudo Chiba Japan.,Research Institute of Oral Science Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Ryoki Kobayashi
- Research Institute of Oral Science Nihon University School of Dentistry at Matsudo Chiba Japan.,Department of Oral Immunology Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Yasunobu Iwai
- Department of Periodontology Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Keisuke Noda
- Department of Periodontology Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Mizuho Yamazaki
- Department of Periodontology Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Tomoko Kurita-Ochiai
- Research Institute of Oral Science Nihon University School of Dentistry at Matsudo Chiba Japan.,Department of Oral Immunology Nihon University School of Dentistry at Matsudo Chiba Japan
| | - Atsutoshi Yoshimura
- Department of Periodontology Nagasaki University Graduate School of Biomedical Sciences Japan
| | - Bernhard Ganss
- Matrix Dynamics Group Faculty of Dentistry University of Toronto Canada
| | - Yorimasa Ogata
- Department of Periodontology Nihon University School of Dentistry at Matsudo Chiba Japan.,Research Institute of Oral Science Nihon University School of Dentistry at Matsudo Chiba Japan
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