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Conley J, Genenger B, Ashford B, Ranson M. Micro RNA Dysregulation in Keratinocyte Carcinomas: Clinical Evidence, Functional Impact, and Future Directions. Int J Mol Sci 2024; 25:8493. [PMID: 39126067 PMCID: PMC11313315 DOI: 10.3390/ijms25158493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 07/30/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024] Open
Abstract
The keratinocyte carcinomas, basal cell carcinoma (BCC), and cutaneous squamous cell carcinoma (cSCC), are the most common cancers in humans. Recently, an increasing body of literature has investigated the role of miRNAs in keratinocyte carcinoma pathogenesis, progression and their use as therapeutic agents and targets, or biomarkers. However, there is very little consistency in the literature regarding the identity of and/or role of individual miRNAs in cSCC (and to a lesser extent BCC) biology. miRNA analyses that combine clinical evidence with experimental elucidation of targets and functional impact provide far more compelling evidence than studies purely based on clinical findings or bioinformatic analyses. In this study, we review the clinical evidence associated with miRNA dysregulation in KCs, assessing the quality of validation evidence provided, identify gaps, and provide recommendations for future studies based on relevant studies that investigated miRNA levels in human cSCC and BCC. Furthermore, we demonstrate how miRNAs contribute to the regulation of a diverse network of cellular functions, and that large-scale changes in tumor cell biology can be attributed to miRNA dysregulation. We highlight the need for further studies investigating the role of miRNAs as communicators between different cell types in the tumor microenvironment. Finally, we explore the clinical benefits of miRNAs as biomarkers of keratinocyte carcinoma prognosis and treatment.
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Affiliation(s)
- Jessica Conley
- Molecular Horizons, School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2500, Australia; (J.C.); (B.G.)
| | - Benjamin Genenger
- Molecular Horizons, School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2500, Australia; (J.C.); (B.G.)
| | - Bruce Ashford
- Illawarra Shoalhaven Local Health District (ISLHD), NSW Health, Wollongong, NSW 2500, Australia;
- Graduate School of Medicine, University of Wollongong, Wollongong, NSW 2500, Australia
| | - Marie Ranson
- Molecular Horizons, School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2500, Australia; (J.C.); (B.G.)
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Baandrup L, Sand FL, Aalborg GL, Nøttrup TJ, Fiehn AMK, Kjaer SK. PD-L1 expression in vulvar cancer: a systematic review and meta-analysis. Histopathology 2024; 84:742-752. [PMID: 38084642 DOI: 10.1111/his.15112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/11/2023] [Accepted: 11/18/2023] [Indexed: 03/06/2024]
Abstract
Programmed cell death ligand-1 (PD-L1) expression in cancer may predict clinical response to immunotherapeutic treatment with PD-1/PD-L1 inhibitors. Within the vulvar cancer field, PD-L1 expression has only been assessed by a few studies. We conducted a meta-analysis to examine the prevalence of PD-L1 positivity in vulvar cancer. PubMed, Embase, and Cochrane were searched for articles reporting on PD-L1 expression in vulvar cancer. Study selection and data extraction were performed independently by two authors. We extracted data on PD-L1 prevalence in vulvar cancer according to combined positive score (CPS) and tumour proportion score (TPS). Cutoff values for positivity were ≥1 or ≥10 for CPS and ≥1% and ≥5% for TPS. Random-effects models were used to estimate pooled PD-L1 prevalence, with 95% confidence intervals (CIs). Tests of between-study heterogeneity were evaluated by the I2 statistics. Sources of heterogeneity were explored by subgroup analyses and meta-regression. In total, 19 studies were included. Pooled PD-L1 prevalence in vulvar cancer was 83.4% (95% CI: 70.8-91.3; I2 = 80.0) and 53.9% (95% CI: 37.4-69.6; I2 = 93.0) according to CPS and TPS, respectively. Based on TPS, human papillomavirus (HPV)-associated vulvar squamous cell carcinomas (SCC) showed a lower PD-L1 prevalence (39.9%; 95% CI: 13.3-74.2) compared with HPV-independent SCC (62.6%; 95% CI: 33.7-84.6), but meta-regression showed no significant variation in PD-L1 prevalence by HPV status. PD-L1 prevalence was similar in advanced (44.9%; 95% CI: 29.8-61.1) and localized vulvar cancer (56.7%; 95% CI: 18.9-76.7). In conclusion, PD-L1 expression in vulvar cancer is frequent but between-study heterogeneity was high. Based on a subgroup of heterogenous studies, we found no strong variation in PD-L1 prevalence according to HPV status and stage.
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Affiliation(s)
- Louise Baandrup
- Unit of Virus, Lifestyle and Genes, Danish Cancer Institute, Copenhagen, Denmark
- Department of Pathology, Zealand University Hospital, Roskilde, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Freja Laerke Sand
- Unit of Virus, Lifestyle and Genes, Danish Cancer Institute, Copenhagen, Denmark
| | | | - Trine J Nøttrup
- Department of Oncology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Marie K Fiehn
- Department of Pathology, Zealand University Hospital, Roskilde, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Susanne K Kjaer
- Unit of Virus, Lifestyle and Genes, Danish Cancer Institute, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Juliane Marie Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Condic M, Rohr A, Riemann S, Staerk C, Ayub TH, Doeser A, Zillinger T, Merkelbach-Bruse S, Buettner R, Barchet W, Rudlowski C, Mustea A, Kübler K. Immune Profiling of Vulvar Squamous Cell Cancer Discovers a Macrophage-rich Subtype Associated with Poor Prognosis. CANCER RESEARCH COMMUNICATIONS 2024; 4:861-875. [PMID: 38407373 PMCID: PMC10956503 DOI: 10.1158/2767-9764.crc-22-0366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 06/07/2023] [Accepted: 02/20/2024] [Indexed: 02/27/2024]
Abstract
The incidence rates of vulvar squamous cell cancer (VSCC) have increased over the past decades, requiring personalized oncologic approaches. Currently, lymph node involvement is a key factor in determining prognosis and treatment options. However, there is a need for additional immune-related biomarkers to provide more precise treatment and prognostic information. Here, we used IHC and expression data to characterize immune cells and their spatial distribution in VSCC. Hierarchical clustering analysis identified distinct immune subtypes, of which the macrophage-rich subtype was associated with adverse outcome. This is consistent with our findings of increased lymphogenesis, lymphatic invasion, and lymph node involvement associated with high macrophage infiltration. Further in vitro studies showed that VSCC-associated macrophages expressed VEGF-A and subsequently induced VEGF-A in the VSCC cell line A-431, providing experimental support for a pro-lymphangiogenic role of macrophages in VSCC. Taken together, immune profiling in VSCC revealed tumor processes, identified a subset of patients with adverse outcome, and provided a valuable biomarker for risk stratification and therapeutic decision making for anti-VEGF treatment, ultimately contributing to the advancement of precision medicine in VSCC. SIGNIFICANCE Immunoprofiling in VSCC reveals subtypes with distinct clinical and biological behavior. Of these, the macrophage-rich VSCC subtype is characterized by poor clinical outcome and increased VEGF-A expression, providing a biomarker for risk stratification and therapeutic sensitivity.
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Affiliation(s)
- Mateja Condic
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Bonn, Germany
| | - Andrea Rohr
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Bonn, Germany
| | - Soheila Riemann
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Christian Staerk
- Department of Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
| | - Tiyasha H. Ayub
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Bonn, Germany
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Anna Doeser
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Bonn, Germany
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Thomas Zillinger
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Sabine Merkelbach-Bruse
- Institute of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Reinhard Buettner
- Institute of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Winfried Barchet
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Christian Rudlowski
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Bonn, Germany
- Lutherian Hospital, Academic Teaching Hospital of the University Hospital Bonn, Bergisch Gladbach, Germany
| | - Alexander Mustea
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Bonn, Germany
| | - Kirsten Kübler
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Bonn, Germany
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
- Cancer Program, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Center for Cancer Research, Massachusetts General Hospital, Harvard Medical School Teaching Hospital, Charlestown, Massachusetts
- Center of Functional Genomics, Berlin Institute of Health (BIH) at Charité – Universitätsmedizin Berlin, Berlin, Germany
- Department of Hematology, Oncology and Cancer Immunology, Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), Partner Site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
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Tekin B, Cheville JC, Herrera Hernandez L, Negron V, Smith CY, Jenkins SM, Dasari S, Enninga EAL, Norgan AP, Menon S, Cubilla AL, Whaley RD, Jimenez RE, Thompson RH, Leibovich BC, Karnes RJ, Boorjian SA, Pagliaro LC, Erickson LA, Guo R, Gupta S. Assessment of PD-L1, TROP2, and nectin-4 expression in penile squamous cell carcinoma. Hum Pathol 2023; 142:42-50. [PMID: 37977513 DOI: 10.1016/j.humpath.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVES There is an unmet need for therapeutically relevant biomarkers for advanced penile squamous cell carcinoma (pSCC). Proposed immunohistochemistry (IHC)-based biomarkers include programmed death-ligand 1 (PD-L1), trophoblast cell-surface antigen 2 (TROP2), and nectin-4; however, there is a paucity of data pertaining to these biomarkers. Herein, we investigated the expression of PD-L1, TROP2, and nectin-4 in a well-annotated cohort of pSCCs. METHODS A single-institution pathology archive was queried for patients who had a partial or total penectomy for pSCC between January 2000 and December 2022. Whole-slide sections were stained with antibodies against PD-L1 (22C3), TROP2, and nectin-4. Expression in tumor cells was quantified using H-scores (0-300). Associations between IHC expression, human papilloma virus (HPV) status, clinicopathologic findings, and outcome parameters were evaluated. RESULTS This study included 121 patients. For PD-L1, the median combined positive and H-scores were 1 and 0, respectively; 32.7 % of the cases had an H-score>0. Compared to PD-L1-negative tumors, PD-L1-positive tumors had higher pT stage and grade. The median TROP2 and nectin-4 H-scores were 230 and 140, respectively, with high TROP2 and nectin-4, defined by an H-score>200, noted in 80.7 % and 10.9 % of cases, respectively. High-risk HPV-positive cases had higher TROP2 and nectin-4 scores compared to HPV-negative cases. Patients with high TROP2 expression had significantly more disease progression, and patients with high nectin-4 expression had significantly fewer deaths due to disease. CONCLUSIONS High expression of TROP2 and nectin-4 in pSCC support evaluation of these markers as therapeutic targets pending validation of our findings.
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Affiliation(s)
- Burak Tekin
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - John C Cheville
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | | | - Vivian Negron
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Carin Y Smith
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA.
| | - Sarah M Jenkins
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA.
| | - Surendra Dasari
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
| | | | - Andrew P Norgan
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Santosh Menon
- Department of Pathology, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India.
| | - Antonio L Cubilla
- Instituto de Patología e Investigación, Universidad Nacional de Asunción, Asunción, Paraguay.
| | - Rumeal D Whaley
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Rafael E Jimenez
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | | | | | | | | | - Lance C Pagliaro
- Division of Medical Oncology, Department of Oncology, Mayo Clinic, Rochester, MN, USA.
| | - Lori A Erickson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Ruifeng Guo
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Sounak Gupta
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
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Xi R, Li D, Yang S, Zhang H, Hu L, Wang X, Wang G, Wang Y. Identification of potential prognostic biomarkers in vulval squamous cell carcinoma based on human papillomavirus infection Status-Analysis of GSE183454. J OBSTET GYNAECOL 2023; 43:2160930. [PMID: 36689258 DOI: 10.1080/01443615.2022.2160930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This study aimed to elucidate the differences in vulval squamous cell carcinomas (VSCC) based on the HPV infection status. The sequencing data GSE183454 which contains 23 VSCC samples based on its HPV infection status was obtained from the Gene Expression Omnibus (GEO) database. We comprehensively dissected the differences of genomic and tumour microenvironment (TME) immune cell infiltration landscapes between HPV + and HPV- VSCC. The potential molecular mechanisms of prognostic genes were explored by functional enrichment analysis. Five novel key molecules (SYCP2, SMC1B, RNF212, MAJIN and C14orf39) with significantly up-regulated expression in HPV + VSCC were identified while protein-protein interaction (PPI) networks were created upon Cytoscape software. Additionally, VSCC with up-regulated expression of these key molecules exhibited a significantly decreased TME immune cell infiltration. SYCP2 is overexpressed in HPV + VSCC and could be a candidate therapy target for further research.IMPACT STATEMENTWhat is already known on this subject? VSCC are characterised by two aetiological pathways. The former occurs in the background of lichen sclerosus, while the latter is related to HPV infection. VSCC most commonly arises from the non-HPV related pathway portends worse prognosis than VSCC derived from HPV infection.What do the results of this study add? Five key molecules are identified and significantly up-regulated in HPV + VSCC. In which, SYCP2 is overexpressed in HPV + VSCC and exhibited a significantly decreased TME immune cell infiltration. SYCP2 constant expression could be a potential biomarker of neoplasms associated with HPV and could be a candidate therapy target in VSCC especially HPV + VSCC for further research.What are the implications of these findings for clinical practice and/or further research? SYCP2 could be a candidate therapy target in VSCC especially with HPV + for further research.
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Affiliation(s)
- Ruxing Xi
- Department of Gynecological Oncology, Shaanxi Provincial Tumor Hospital, Xi'an, China
| | - Donghong Li
- Department of Gynecological Oncology, Shaanxi Provincial Tumor Hospital, Xi'an, China
| | - Shuanque Yang
- Department of Gynecological Oncology, Shaanxi Provincial Tumor Hospital, Xi'an, China
| | - Hui Zhang
- Department of Gynecological Oncology, Shaanxi Provincial Tumor Hospital, Xi'an, China
| | - Lijuan Hu
- Department of Gynecological Oncology, Shaanxi Provincial Tumor Hospital, Xi'an, China
| | - Xiaowei Wang
- Department of Gynecological Oncology, Shaanxi Provincial Tumor Hospital, Xi'an, China
| | - Guoqing Wang
- Department of Gynecological Oncology, Shaanxi Provincial Tumor Hospital, Xi'an, China
| | - Yan Wang
- Department of Nursing, Shaanxi Provincial Tumor Hospital, Xi'an, China
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Li Z, Liu P, Wang Z, Zhang Z, Chen Z, Chu R, Li G, Han Q, Zhao Y, Li L, Miao J, Kong B, Song K. Prevalence of human papillomavirus DNA and p16 INK4a positivity in vulvar cancer and vulvar intraepithelial neoplasia: a systematic review and meta-analysis. Lancet Oncol 2023; 24:403-414. [PMID: 36933562 DOI: 10.1016/s1470-2045(23)00066-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 03/17/2023]
Abstract
BACKGROUND Human papillomavirus (HPV) DNA and p16INK4a positivity have crucial roles in the pathogenesis of vulvar cancer and vulvar intraepithelial neoplasia. We aimed to examine the pooled prevalence of HPV DNA and p16INK4a positivity in vulvar cancer and vulvar intraepithelial neoplasia worldwide. METHODS In this systematic review and meta-analysis, we searched PubMed, Embase, and the Cochrane Library databases for studies published between Jan 1, 1986, and May 6, 2022, that reported the prevalence of HPV DNA, or p16INK4a positivity, or both, in histologically verified vulvar cancer or vulvar intraepithelial neoplasia. Studies on a minimum of five cases were included. Study-level data were extracted from the published studies. Random effect models were used to examine the pooled prevalence of HPV DNA and p16INK4a positivity in both vulvar cancer and vulvar intraepithelial neoplasia, which were further investigated using stratified analyses by histological subtype, geographical region, HPV DNA or p16INK4a detection method, tissue sample type, HPV genotype, publication year, and age at diagnosis. Additionally, meta-regression was applied to explore sources of heterogeneity. FINDINGS We retrieved 6393 search results, of which 6233 were excluded for being duplicates or after application of our inclusion and exclusion criteria. We also identified two studies from manual searches of references lists. 162 studies were eligible for inclusion in the systematic review and meta-analysis. The prevalence of HPV in vulvar cancer (91 studies; n=8200) was 39·1% (95% CI 35·3-42·9) and in vulvar intraepithelial neoplasia (60 studies; n=3140) was 76·1% (70·7-81·1). The most predominant HPV genotype in vulvar cancer was HPV16 (78·1% [95% CI 73·5-82·3]), followed by HPV33 (7·5% [4·9-10·7]). Similarly, HPV16 (80·8% [95% CI 75·9-85·2]) and HPV33 (6·3% [3·9-9·2]) were also the most two predominant HPV genotypes in vulvar intraepithelial neoplasia. The distribution of type-specific HPV genotypes in vulvar cancer among geographical regions was different, with HPV16 varying between regions, showing a high prevalence in Oceania (89·0% [95% CI 67·6-99·5]) and a low prevalence in South America (54·3% [30·2-77·4]). The prevalence of p16INK4a positivity in patients with vulvar cancer was 34·1% (95% CI 30·9-37·4; 52 studies; n=6352), and it was 65·7% (52·5-77·7; 23 studies; n=896) in patients with vulvar intraepithelial neoplasia. Furthermore, among patients with HPV-positive vulvar cancer, p16INK4a positivity prevalence was 73·3% (95% CI 64·7-81·2), compared with 13·8% (10·0-18·1) in HPV-negative vulvar cancer. The prevalence of double positivity for HPV and p16INK4a was 19·6% (95% CI 16·3-23·0) in vulvar cancer and 44·2% (26·3-62·8) in vulvar intraepithelial neoplasia. Most analyses had large heterogeneity (I2>75%). INTERPRETATION The high prevalence of HPV16 and HPV33 in vulvar cancer and vulvar intraepithelial neoplasia emphasised the importance of nine-valent HPV vaccination in preventing vulvar neoplasm. Additionally, this study highlighted the potential clinical significance of double positivity for HPV DNA and p16INK4a in vulvar neoplasm. FUNDING Taishan Scholar Youth Project of Shandong Province, China.
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Affiliation(s)
- Zhuang Li
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Penglin Liu
- Department of Gynecological Oncology, Beijing Obstetrics and Gynaecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Ziying Wang
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zhaoyang Zhang
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zhongshao Chen
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Ran Chu
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Guiju Li
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Qiuyue Han
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yong Zhao
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Li Li
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Jinwei Miao
- Department of Gynecological Oncology, Beijing Obstetrics and Gynaecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Beihua Kong
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Kun Song
- Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Jinan, Shandong, China.
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Transcriptome Analysis in Vulvar Squamous Cell Cancer. Cancers (Basel) 2021; 13:cancers13246372. [PMID: 34944992 PMCID: PMC8699756 DOI: 10.3390/cancers13246372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/09/2021] [Accepted: 12/16/2021] [Indexed: 01/06/2023] Open
Abstract
Simple Summary The number of women, especially younger women, diagnosed with vulvar cancer, has been rising mainly due to the infection with human papilloma virus (HPV) over the last years. In contrast to other tumor entities, limited information on the underlying genetic changes is available, and thus treatment advances, especially the development of personalized treatments, are hampered. We aimed to explore the RNA expression profiles in a group of 24 vulvar cancer samples in order to detect potential prognostic markers and therapeutic targets in order to establish to a more profound understanding of vulvar cancer carcinogenesis. Abstract To date, therapeutic strategies in vulvar squamous cell carcinoma (VSCC) are lacking molecular pathological information and targeted therapy hasn’t been approved in the treatment of VSCC, yet. Two etiological pathways are widely accepted: HPV induced vs. HPV independent, associated with chronic skin disease, often harboring TP53 mutations (mut). The aim of this analysis was to analyze the RNA expression patterns for subtype stratification on VSCC samples that can be integrated into the previously performed whole exome sequencing data for the detection of prognostic markers and potential therapeutic targets. We performed multiplex gene expression analysis (NanoString) with 770 genes in 24 prior next generation sequenced samples. An integrative data analysis was performed. Here, 98 genes were differentially expressed in TP53mut vs. HPV+ VSCC, in the TP53mut cohort, where 56 genes were upregulated and 42 were downregulated in comparison to the HPV+ tumors. Aberrant expression was primarily observed in cell cycle regulation, especially in HPV+ disease. Within the TP53mut group, a distinct cluster was identified that was correlated to a significantly worse overall survival (p = 0.017). The RNA expression profiles showed distinct patterns with regard to the known VSCC subtypes and could potentially enable further subclassification in the TP53mut groups
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