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Wang J, Chen H, Deng Q, Chen Y, Wang Z, Yan Z, Wang Y, Tang H, Liang H, Jiang Y. High expression of RNF169 is associated with poor prognosis in pancreatic adenocarcinoma by regulating tumour immune infiltration. Front Genet 2023; 13:1022626. [PMID: 36685833 PMCID: PMC9849556 DOI: 10.3389/fgene.2022.1022626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 12/20/2022] [Indexed: 01/06/2023] Open
Abstract
Background: Pancreatic adenocarcinoma (PAAD) is a highly deadly and aggressive tumour with a poor prognosis. However, the prognostic value of RNF169 and its related mechanisms in PAAD have not been elucidated. In this study, we aimed to explore prognosis-related genes, especially RNF169 in PAAD and to identify novel potential prognostic predictors of PAAD. Methods: The GEPIA and UALCAN databases were used to investigate the expression and prognostic value of RNF169 in PAAD. The correlation between RNF169 expression and immune infiltration was determined by using TIMER and TISIDB. Correlation analysis with starBase was performed to identify a potential regulatory axis of lncRNA-miRNA-RNF169. Results: The data showed that the level of RNF169 mRNA expression in PAAD tissues was higher than that in normal tissues. High RNF169 expression was correlated with poor prognosis in PAAD. In addition, analysis with the TISIDB and TIMER databases revealed that RNF169 expression was positively correlated with tumour immune infiltration in PAAD. Correlation analysis suggested that the long non-coding RNA (lncRNA) AL049555.1 and the microRNA (miRNA) hsa-miR-324-5p were involved in the expression of RNF169, composing a potential regulatory axis to control the progression of PAAD. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses indicated that RNF169 plays a role in PAAD through pathways such as TNF, Hippo, JAK-STAT and Toll-like receptor signaling. Conclusion: In summary, the upregulation of RNF169 expression mediated by ncRNAs might influence immune cell infiltration in the microenvironment; thus, it can be used as a prognostic biomarker and a potential therapeutic target in PAAD.
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Affiliation(s)
- Jieyan Wang
- Department of Urology, The People’s Hospital of Longhua, The Affiliated Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Hanghang Chen
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Qiong Deng
- Department of Urology, The People’s Hospital of Longhua, The Affiliated Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Yeda Chen
- Department of Urology, The People’s Hospital of Longhua, The Affiliated Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Zhu Wang
- Department of Urology, The People’s Hospital of Longhua, The Affiliated Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Zhengzheng Yan
- Dongguan Key Laboratory of Respiratory and Critical Care Medicine, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, China
| | - Yinglin Wang
- Department of Pediatrics, The Second Hospital of Zhuzhou, Zhuzhou, Hunan, China
| | - Haoxuan Tang
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Hui Liang
- Department of Urology, The People’s Hospital of Longhua, The Affiliated Hospital of Southern Medical University, Shenzhen, Guangdong, China,*Correspondence: Hui Liang, ; Yong Jiang,
| | - Yong Jiang
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China,Dongguan Key Laboratory of Respiratory and Critical Care Medicine, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, China,*Correspondence: Hui Liang, ; Yong Jiang,
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Li Y, Su Z, Wei B, Liang Z. KRT7 Overexpression is Associated with Poor Prognosis and Immune Cell Infiltration in Patients with Pancreatic Adenocarcinoma. Int J Gen Med 2021; 14:2677-2694. [PMID: 34188523 PMCID: PMC8233003 DOI: 10.2147/ijgm.s313584] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/25/2021] [Indexed: 12/30/2022] Open
Abstract
Background Pancreatic adenocarcinoma (PAAD) is a deadly tumor with a high recurrence rate and poor prognosis. Keratin 7 (KRT7) is a member of the keratin gene family that is involved in the regulation of cell growth, migration and apoptosis in many cancers. However, the role of KRT7 and its biological functions in PAAD remain unclear. We systemically analyzed the expression and clinical values of KRT7 in PAAD. Methods The Gene Expression Profiling Interactive Analysis (GEPIA), Oncomine and Human Protein Atlas (HPA) databases were used to analyze the mRNA and protein expression of KRT7 in PAAD. The prognosis and subgroup analysis of KRT7 in PAAD patients was performed using the GEPIA, PROGgeneV2 and UALCAN databases. Later, the correlation between KRT7 expression and tumor immune molecules in PAAD was evaluated using the Immune Cell Abundance Identifier (ImmuCellAI) and TISIDB databases. Finally, the functional enrichment pathway of KRT7 and its coexpressed genes were analyzed by the Database for Annotation, Visualization, and Integrated Discovery (DAVID) and Metascape databases and Gene Set Enrichment Analysis (GSEA). Results The mRNA and protein expression of KRT7 was increased in PAAD tissues compared with normal tissues. High KRT7 expression was closely associated with tumor grade, TP53 mutations and poor prognosis in PAAD patients. Cox regression analysis proved that overexpressed KRT7 was an important and independent risk factor for poor overall survival (P = 0.006, HR =1.87) and disease-free survival (P = 0.019, HR =1.793) in PAAD. Additionally, KRT7 expression was significantly associated with immune infiltration of tumor immune cells and immunomodulators. Functional enrichment analyses and GSEA indicated that KRT7 might be involved in the regulation of the p53 pathway in PAAD. Conclusion Overexpressed KRT7 could be a promising prognostic and therapeutic target biomarker for PAAD by bioinformatics analysis.
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Affiliation(s)
- Yuexian Li
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Zhou Su
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Biwei Wei
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Zhihai Liang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
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Holbrook MC, Goad DW, Grdzelishvili VZ. Expanding the Spectrum of Pancreatic Cancers Responsive to Vesicular Stomatitis Virus-Based Oncolytic Virotherapy: Challenges and Solutions. Cancers (Basel) 2021; 13:1171. [PMID: 33803211 PMCID: PMC7963195 DOI: 10.3390/cancers13051171] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/05/2021] [Accepted: 03/05/2021] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a devastating malignancy with poor prognosis and a dismal survival rate, expected to become the second leading cause of cancer-related deaths in the United States. Oncolytic virus (OV) is an anticancer approach that utilizes replication-competent viruses to preferentially infect and kill tumor cells. Vesicular stomatitis virus (VSV), one such OV, is already in several phase I clinical trials against different malignancies. VSV-based recombinant viruses are effective OVs against a majority of tested PDAC cell lines. However, some PDAC cell lines are resistant to VSV. Upregulated type I IFN signaling and constitutive expression of a subset of interferon-simulated genes (ISGs) play a major role in such resistance, while other mechanisms, such as inefficient viral attachment and resistance to VSV-mediated apoptosis, also play a role in some PDACs. Several alternative approaches have been shown to break the resistance of PDACs to VSV without compromising VSV oncoselectivity, including (i) combinations of VSV with JAK1/2 inhibitors (such as ruxolitinib); (ii) triple combinations of VSV with ruxolitinib and polycations improving both VSV replication and attachment; (iii) combinations of VSV with chemotherapeutic drugs (such as paclitaxel) arresting cells in the G2/M phase; (iv) arming VSV with p53 transgenes; (v) directed evolution approach producing more effective OVs. The latter study demonstrated impressive long-term genomic stability of complex VSV recombinants encoding large transgenes, supporting further clinical development of VSV as safe therapeutics for PDAC.
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Affiliation(s)
| | | | - Valery Z. Grdzelishvili
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223, USA; (M.C.H.); (D.W.G.)
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Is Surgery-first Still a Reasonable Option in the Era of Neoadjuvant Chemotherapy for Resectable Pancreatic Cancer? Am J Clin Oncol 2020; 43:298-304. [PMID: 31895096 DOI: 10.1097/coc.0000000000000661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The incidence of pancreatic ductal adenocarcinoma has risen rapidly. By 2030, it is likely to be the second most prevalent cause of death by cancer, following cancer of the lung. Unfortunately, most patients present with advanced disease. In fact, only 20% of patients are candidates for surgery. More research is needed to find dependable treatment options for this disease. Although we wait for more effective treatments to be developed, we continue using chemotherapy, radiation, and surgery-all with less than optimal outcomes. There is a debate about using chemotherapy in the neoadjuvant setting and counter-debate about better outcomes in the adjuvant settings. In the neoadjuvant setting, not everyone is able to make it to surgery; conversely, in the adjuvant setting, not everyone is able to make it to chemotherapy. Drop-out data after surgery are widely available, but similar drop-out rates after neoadjuvant treatment are not widely published. Here, we will analyze the literature to better understand the treatment strategies and outcomes of pancreatic ductal adenocarcinoma. We argue in favor of an upfront surgery and adjuvant therapy strategy for better outcomes and patient quality of life.
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Mosquera C, Johnson HM, Mitsakos AT, Neill NE, Bellamy N, Irish W, Zervos EE, Laks S. Predictive Value of Preoperative Serum CA19-9 on Margin Status. Am Surg 2019. [DOI: 10.1177/000313481908500937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Serum carbohydrate antigen (CA19-9) is known to correlate with stage, resectability, and prognosis of pancreatic cancer. The goal of pancreaticoduodenectomy is to achieve an R0 resection because worse outcomes are reported in the presence of positive margins. The purpose of this study was to evaluate the predictive utility of CA19-9 for pancreaticoduodenectomy margin status. A retrospective review of patients with pancreatic adenocarcinoma undergoing pancreaticoduodenectomy between October 2007 and November 2018 at our institution was performed. Patient demographics, preoperative CA19-9, and tumor characteristics were analyzed. Univariate and mul-tivariate logistic regression was performed to determine factors associated with positive margins. A total of 184 patients were included. The mean age was 65 years; most patients were male and white. Majority had a positive preoperative CA19-9 (69%). There were nearly twice as many patients with negative as positive margins. Groups had similar demographics and preoperative CA19-9. A greater proportion of patients with negative margins had smaller tumors and early disease. On univariate and multivariate analysis, larger and higher stage tumors had greater odds of positive margins ( P < 0.05). There was no significant association between margin status and preoperative CA19-9. Preoperative CA19-9 is not predictive of margin status. These results suggest that although preoperative CA19-9 values are associated with both resectability and prognosis, positive margins may not be a contributing mechanism.
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Affiliation(s)
- Catalina Mosquera
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Helen M. Johnson
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Anastasios T. Mitsakos
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Nina E. Neill
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Nelly Bellamy
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - William Irish
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Emmanuel E. Zervos
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Shachar Laks
- From the Division of Surgical Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
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