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Robertson FP, Cameron A, Spiers HVM, Joseph N, Taylor E, Ratnayake B, Jamieson NB, Pandanaboyana S. Evidence for molecular subtyping in pancreatic ductal adenocarcinoma: a systematic review. HPB (Oxford) 2024; 26:609-617. [PMID: 38401998 DOI: 10.1016/j.hpb.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/24/2024] [Accepted: 02/06/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND Pancreatic Ductal Adenocarcinoma (PDAC) patients exhibit varied responses to multimodal therapy. RNA gene sequencing has unravelled distinct tumour biology subtypes, forming the focus of this review exploring its impact on survival outcomes. METHODS A systematic search across PubMed, Medline, Embase, and CINAHL databases targeted studies assessing long-term overall and disease-free survival in PDAC patients with molecular subtyping. RESULTS Fifteen studies including 2731 patients were identified. Molecular subtyping was performed by RNA sequencing and Immunohistochemistry in 14 studies and by Mass Spectrometry in 1 study. Two main tumour subtypes were identified (classical and basal-like or squamous) with basal like associated with poorer outcomes. Further subtypes were identified in individual studies. Superior survival was seen with classical subtype in all other analyses that compared the classical and basal subtypes. High risk stromal subtypes were identified on further analysis of the stroma and were associated with a worse survival independent of the tumour subtype. CONCLUSION Molecular subtyping of PDAC specimens can identify patients with high-risk tumour biology and poor survival outcomes. Routine subtyping is limited by the cost of RNA sequencing and the volume of raw data generated which has made its translation into routine clinical practice difficult.
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Affiliation(s)
- Francis P Robertson
- Department of HPB Surgery, Glenfield Hospital, Leicester, UK; Leicester Cancer Research Centre, University of Leicester, Leicester, UK.
| | - Andrew Cameron
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, UK
| | - Harry V M Spiers
- Department of HPB Surgery, Addenbrookes Hospital, Cambridge, UK; Department of Surgery, University of Cambridge, Cambridge, UK
| | - Nejo Joseph
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle Upon Tyne, UK
| | - Ellie Taylor
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle Upon Tyne, UK
| | - Bathiya Ratnayake
- Faculty of Medical and Health Sciences, University of Auckland, New Zealand
| | - Nigel B Jamieson
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, UK
| | - Sanjay Pandanaboyana
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle Upon Tyne, UK; Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, UK
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Irwin T, Donlan AW, Owens L, Alvarez R, Vakar-Lopez F, Tretiakova M. Enhancing upper tract urothelial carcinoma diagnosis: Utility of cytokeratin 17 and CK20/CD44/p53 immunohistochemical panel. Hum Pathol 2024; 146:43-48. [PMID: 38593961 DOI: 10.1016/j.humpath.2024.04.001] [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: 01/10/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/11/2024]
Abstract
Upper tract urothelial carcinoma (UTUC) presents diagnostic challenges due to small biopsy specimen size, poor orientation, and technical obstacles that can yield equivocal diagnoses. This uncertainty often mandates repeated biopsies to evaluate the necessity of nephroureterectomy. Prior studies have suggested cytokeratin 17 (CK17) immunostain as an adjunctive tool for diagnosing bladder urothelial neoplasia in both urine cytology and tissue biopsy specimens. We evaluated the utility of CK17 in differentiating UTUC from benign urothelium and its ability to stratify low-grade from high-grade neoplasia. Our study involved a cohort of previously diagnosed cytology (n = 29) and tissue specimens from biopsies and resections (n = 85). We evaluated CK17 staining percentage in cytology and tissue samples and localization patterns in biopsy/resection samples. Our findings showed a statistically significant distinction (p < 0.05) between UTUC and benign tissue specimens based on full thickness localization pattern (odds ratio 8.8 [95% CI 1.53-67.4]). The percentage of CK17 staining failed to significantly differentiate neoplastic from non-neoplastic cases in cytology or tissue samples. Additionally, based on prior research showing the efficacy of CK20/CD44/p53 triple panel in bladder urothelial neoplasia, we utilized tissue microarrays to evaluate if these markers could distinguish UTUC from benign urothelium. We found that CK20/CD44/p53, individually or in combination, could not distinguish urothelial neoplasia from non-neoplasia. Full thickness CK17 urothelial localization by immunohistochemistry was highly reproducible with excellent interobserver agreement and may play a supplementary role in distinguishing upper tract urothelial neoplasia from benign urothelium.
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Affiliation(s)
- Trent Irwin
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA.
| | - Amelia W Donlan
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Lukas Owens
- Program in Biostatistics, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Rebeca Alvarez
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Funda Vakar-Lopez
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Maria Tretiakova
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
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Giotakis AI, Runge A, Dudas J, Glueckert R, Gottfried T, Schartinger VH, Klarer J, Randhawa A, Caimmi E, Riechelmann H. Analysis of cells of epithelial, connective tissue and immune differentiation in HPV-positive-, HPV-negative oropharyngeal carcinoma and normal oropharyngeal tissue by immunofluorescence multiplex image cytometry: a preliminary report. BMC Cancer 2023; 23:1154. [PMID: 38012597 PMCID: PMC10683252 DOI: 10.1186/s12885-023-11440-x] [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: 07/18/2023] [Accepted: 09/24/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Epithelial, connective tissue and immune cells contribute in various ways to the pathophysiology of HPV positive (HPV+) and HPV negative (HPV-) oropharyngeal squamous cell carcinoma (OPSCC). We aimed to investigate the abundance of these cell lineages and their coexpression patterns in patients with HPV + and HPV- OPSCC. METHODS We used a 4-channel immunofluorescence-microscopy technique for the simultaneous detection of three direct-conjugated antibodies (pancytokeratin, vimentin and CD45/CD18) and DAPI (4',6-Diamidin-2-phenylindole) in formalin fixed paraffin-embedded tissue samples (FFPE) of patients with HPV + and HPV- OPSCC, and of control patients. Image acquisition and analysis were performed with TissueFAXS and StrataQuest (TissueGnostics, Vienna, Austria), respectively, in tumor cell clusters/stroma in OPSCC specimens and epithelial layer/lamina propria in control specimens. Cell populations were created based on antibodies' coexpression patterns. Isotype and positive controls were examined for plausibility. RESULTS The proportion of cells of epithelial differentiation in tumor cell clusters was higher in HPV + OPSCC (55%) than in HPV- OPSCC samples (44%). The proportion of connective tissue cells in tumor cell cluster was lower in HPV + OPSCC patients (18%) than in HPV- OPSCC patients (26%). The proportion of immune cells in tumor cell clusters was higher in HPV + OPSCC patients (25%) than in HPV- OPSCC patients (18%). The percentage of anaplastic, potentially de-differentiated cells, was 2% in control patients, and it was higher in HPV- OPSCC (21%) than in HPV + OPSCC samples (6%). CONCLUSIONS This study provided the first quantitative data for the abundance of cells of epithelial, connective tissue and immune differentiation, in patients with OPSCC and control patients. The abundance of these different crucial cell populations was consistently originating from the same tissue sample. De-differentiation of tumor cells was higher in HPV- OPSCC than in HPV + OPSCC. In tumor cells clusters, the antitumoral host immune response was higher in HPV + OPSCC than in HPV- OPSCC, whereas the fibroblast response was higher in HPV- OPSCC than in HPV + OPSCC. This study contributed to the understanding of histopathologic differences between HPV + OPSCC and HPV- OPSCC patients.
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Affiliation(s)
- Aris I Giotakis
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Annette Runge
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria.
| | - József Dudas
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Rudolf Glueckert
- University Clinics Innsbruck, Tirol Kliniken, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Timo Gottfried
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Volker H Schartinger
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Johanna Klarer
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Avneet Randhawa
- Department of Otolaryngology, Rutgers University, New Jersey Medical School, Newark, NJ, USA
| | - Eleonora Caimmi
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Herbert Riechelmann
- Department of Otorhinolaryngology - Head & Neck Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
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Lozar T, Wang W, Gavrielatou N, Christensen L, Lambert PF, Harari PM, Rimm DL, Burtness B, Grasic Kuhar C, Carchman EH. Emerging Prognostic and Predictive Significance of Stress Keratin 17 in HPV-Associated and Non HPV-Associated Human Cancers: A Scoping Review. Viruses 2023; 15:2320. [PMID: 38140561 PMCID: PMC10748233 DOI: 10.3390/v15122320] [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: 10/20/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
A growing body of literature suggests that the expression of cytokeratin 17 (K17) correlates with inferior clinical outcomes across various cancer types. In this scoping review, we aimed to review and map the available clinical evidence of the prognostic and predictive value of K17 in human cancers. PubMed, Web of Science, Embase (via Scopus), Cochrane Central Register of Controlled Trials, and Google Scholar were searched for studies of K17 expression in human cancers. Eligible studies were peer-reviewed, published in English, presented original data, and directly evaluated the association between K17 and clinical outcomes in human cancers. Of the 1705 studies identified in our search, 58 studies met criteria for inclusion. Studies assessed the prognostic significance (n = 54), predictive significance (n = 2), or both the prognostic and predictive significance (n = 2). Altogether, 11 studies (19.0%) investigated the clinical relevance of K17 in cancers with a known etiologic association to HPV; of those, 8 (13.8%) were focused on head and neck squamous cell carcinoma (HNSCC), and 3 (5.1%) were focused on cervical squamous cell carcinoma (SCC). To date, HNSCC, as well as triple-negative breast cancer (TNBC) and pancreatic cancer, were the most frequently studied cancer types. K17 had prognostic significance in 16/17 investigated cancer types and 43/56 studies. Our analysis suggests that K17 is a negative prognostic factor in the majority of studied cancer types, including HPV-associated types such as HNSCC and cervical cancer (13/17), and a positive prognostic factor in 2/17 studied cancer types (urothelial carcinoma of the upper urinary tract and breast cancer). In three out of four predictive studies, K17 was a negative predictive factor for chemotherapy and immune checkpoint blockade therapy response.
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Affiliation(s)
- Taja Lozar
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; (T.L.)
- University of Wisconsin Carbone Cancer Center, Madison, WI 53705, USA
- University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Wei Wang
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; (T.L.)
| | - Niki Gavrielatou
- Department of Pathology, Yale University, New Haven, CT 06510, USA
| | - Leslie Christensen
- Ebling Library, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA;
| | - Paul F. Lambert
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; (T.L.)
- University of Wisconsin Carbone Cancer Center, Madison, WI 53705, USA
| | - Paul M. Harari
- University of Wisconsin Carbone Cancer Center, Madison, WI 53705, USA
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - David L. Rimm
- Department of Pathology, Yale University, New Haven, CT 06510, USA
| | - Barbara Burtness
- Department of Medicine and Yale Cancer Center, Yale School of Medicine, New Haven, CT 06510, USA
| | - Cvetka Grasic Kuhar
- University of Ljubljana, 1000 Ljubljana, Slovenia
- Institute of Oncology Ljubljana, 1000 Ljubljana, Slovenia
| | - Evie H. Carchman
- University of Wisconsin Carbone Cancer Center, Madison, WI 53705, USA
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- William S. Middleton Memorial Veterans Hospital, 2500 Overlook Terrace, Madison, WI 53705, USA
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5
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Lozar T, Laklouk I, Golfinos AE, Gavrielatou N, Xu J, Flynn C, Keske A, Yu M, Bruce JY, Wang W, Grasic Kuhar C, Bailey HH, Harari PM, Dinh HQ, Rimm DL, Hu R, Lambert PF, Fitzpatrick MB. Stress Keratin 17 Is a Predictive Biomarker Inversely Associated with Response to Immune Check-Point Blockade in Head and Neck Squamous Cell Carcinomas and Beyond. Cancers (Basel) 2023; 15:4905. [PMID: 37835599 PMCID: PMC10571921 DOI: 10.3390/cancers15194905] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Low response rates in immune check-point blockade (ICB)-treated head and neck squamous cell carcinoma (HNSCC) drive a critical need for robust, clinically validated predictive biomarkers. Our group previously showed that stress keratin 17 (CK17) suppresses macrophage-mediated CXCL9/CXCL10 chemokine signaling involved in attracting activated CD8+ T cells into tumors, correlating with decreased response rate to pembrolizumab-based therapy in a pilot cohort of ICB-treated HNSCC (n = 26). Here, we performed an expanded analysis of the predictive value of CK17 in ICB-treated HNSCC according to the REMARK criteria and investigated the gene expression profiles associated with high CK17 expression. Pretreatment samples from pembrolizumab-treated HNSCC patients were stained via immunohistochemistry using a CK17 monoclonal antibody (n = 48) and subjected to spatial transcriptomic profiling (n = 8). Our findings were validated in an independent retrospective cohort (n = 22). CK17 RNA expression in pembrolizumab-treated patients with various cancer types was investigated for predictive significance. Of the 48 patients (60% male, median age of 61.5 years), 21 (44%) were CK17 high, and 27 (56%) were CK17 low. A total of 17 patients (35%, 77% CK17 low) had disease control, while 31 patients (65%, 45% CK17 low) had progressive disease. High CK17 expression was associated with a lack of disease control (p = 0.037), shorter time to treatment failure (p = 0.025), and progression-free survival (PFS, p = 0.004), but not overall survival (OS, p = 0.06). A high CK17 expression was associated with lack of disease control in an independent validation cohort (p = 0.011). PD-L1 expression did not correlate with CK17 expression or clinical outcome. CK17 RNA expression was predictive of PFS and OS in 552 pembrolizumab-treated cancer patients. Our findings indicate that high CK17 expression may predict resistance to ICB in HNSCC patients and beyond.
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Affiliation(s)
- Taja Lozar
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, 6459 Wisconsin Institute for Medical Research, 1111 Highland Ave., Madison, WI 53705, USA
- University of Wisconsin Carbone Cancer Center, Madison, 53705 WI, USA
- University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Israa Laklouk
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, MC 8550, 600 Highland Ave, Madison, WI 53792, USA
| | - Athena E Golfinos
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, 6459 Wisconsin Institute for Medical Research, 1111 Highland Ave., Madison, WI 53705, USA
| | - Niki Gavrielatou
- Department of Pathology, Yale University, New Haven, CT 06510, USA
| | - Jin Xu
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, MC 8550, 600 Highland Ave, Madison, WI 53792, USA
| | - Christopher Flynn
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, MC 8550, 600 Highland Ave, Madison, WI 53792, USA
| | - Aysenur Keske
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, MC 8550, 600 Highland Ave, Madison, WI 53792, USA
| | - Menggang Yu
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Justine Y Bruce
- University of Wisconsin Carbone Cancer Center, Madison, 53705 WI, USA
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Wei Wang
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, 6459 Wisconsin Institute for Medical Research, 1111 Highland Ave., Madison, WI 53705, USA
| | - Cvetka Grasic Kuhar
- University of Ljubljana, 1000 Ljubljana, Slovenia
- Institute of Oncology Ljubljana, 1000 Ljubljana, Slovenia
| | - Howard H Bailey
- University of Wisconsin Carbone Cancer Center, Madison, 53705 WI, USA
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Paul M Harari
- University of Wisconsin Carbone Cancer Center, Madison, 53705 WI, USA
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Huy Q Dinh
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, 6459 Wisconsin Institute for Medical Research, 1111 Highland Ave., Madison, WI 53705, USA
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - David L Rimm
- Department of Pathology, Yale University, New Haven, CT 06510, USA
| | - Rong Hu
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, MC 8550, 600 Highland Ave, Madison, WI 53792, USA
| | - Paul F Lambert
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, 6459 Wisconsin Institute for Medical Research, 1111 Highland Ave., Madison, WI 53705, USA
- University of Wisconsin Carbone Cancer Center, Madison, 53705 WI, USA
| | - Megan B Fitzpatrick
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, MC 8550, 600 Highland Ave, Madison, WI 53792, USA
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Boricic N, Boricic I, Soldatovic I, Milovanovic J, Trivic A, Terzic T. Utility of CK8, CK10, CK13, and CK17 in Differential Diagnostics of Benign Lesions, Laryngeal Dysplasia, and Laryngeal Squamous Cell Carcinoma. Diagnostics (Basel) 2022; 12:diagnostics12123203. [PMID: 36553210 PMCID: PMC9777365 DOI: 10.3390/diagnostics12123203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/07/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
There are no reliable immunohistochemical markers for diagnosing laryngeal squamous cell carcinoma (SCC) or diagnosing and grading laryngeal dysplasia. We aimed to evaluate the diagnostic utility of CK8, CK10, CK13, and CK17 in benign laryngeal lesions, laryngeal dysplasia, and laryngeal SCC. This retrospective study included 151 patients diagnosed with laryngeal papilloma, laryngeal polyps, laryngeal dysplasia, and laryngeal SCC who underwent surgical treatment between 2010 and 2020. Immunohistochemistry (IHC) was carried out using specific monoclonal antibodies against CK8, CK10, CK13, and CK17. Two experienced pathologists performed semi-quantitative scoring of IHC positivity. The diagnostic significance of the markers was analyzed. CK13 showed a sensitivity of 100% and a specificity of 82.5% for distinguishing between laryngeal SCC and laryngeal dysplasia and benign lesions. CK17 showed a sensitivity of 78.3% and specificity of 57.1% for the detection of laryngeal SCC vs. laryngeal dysplasia. CK10 showed a sensitivity of 80.0% for discriminating between low-grade and high-grade dysplasia, and a specificity of 61.1%. Loss of CK13 expression is a reliable diagnostic tool for diagnosing laryngeal lesions with malignant potential and determining resection lines. In lesions with diminished CK13 expression, CK17 could be used as an auxiliary immunohistochemical marker in diagnosing laryngeal SCC. In CK13-negative and CK17-positive lesions, CK10 positivity could be used to determine low-grade dysplasia. CK8 is not a useful IHC marker in differentiating between benign laryngeal lesions, laryngeal dysplasia, and laryngeal SCC.
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Affiliation(s)
- Novica Boricic
- Institute of Pathology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Correspondence:
| | - Ivan Boricic
- Institute of Pathology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Ivan Soldatovic
- Faculty of Medicine, Institute of Medical Statistics and Informatics, University of Belgrade, 11000 Belgrade, Serbia
| | - Jovica Milovanovic
- Clinic for Otorhinolaryngology and Maxillofacial Surgery, Clinical Centre Serbia, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Aleksandar Trivic
- Clinic for Otorhinolaryngology and Maxillofacial Surgery, Clinical Centre Serbia, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Tatjana Terzic
- Institute of Pathology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
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Tang S, Liu W, Yong L, Liu D, Lin X, Huang Y, Wang H, Cai F. Reduced Expression of KRT17 Predicts Poor Prognosis in HER2high Breast Cancer. Biomolecules 2022; 12:biom12091183. [PMID: 36139022 PMCID: PMC9496156 DOI: 10.3390/biom12091183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Breast cancer (BC) is one of the most common types of malignancies in women and greatly threatens female health. KRT17 is a member of the keratin (KRT) protein family that is abundant in the outer layer of the skin, where it protects epithelial cells from damage. Although KRT17 has been studied in many types of cancer, the expression of KRT17 in specific subtypes of BC remains to be determined. In our study, we explored the expression and prognostic implications of KRT17 in BC patients using mRNA transcriptome data and clinical BC data from The Cancer Genome Atlas (TCGA). Receiver operating characteristic (ROC) curves and the chi-square test were used to assess the diagnostic value of KRT17 expression. Quantitative real-time PCR (qRT−PCR) analysis of BC cells and tissues and immunohistochemistry (IHC) analysis of clinical tissues were used for external validation. Furthermore, the relationship between KRT17 and immune function was studied by using the CIBERSORT algorithm to predict the proportions of tumor-infiltrating immune cells (TIICs). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed to explore the potential mechanisms by which KRT17 expression influences patient survival. We found that KRT17 expression was significantly lower in BC tissues than in normal tissues, especially in the luminal-A, luminal-B and human epidermal growth factor receptor-2 (HER2)+ subtypes of BC. ROC analysis revealed that KRT17 expression had moderate diagnostic value. Interestingly, decreased expression of KRT17 was significantly correlated with poor prognosis in BC patients, especially in HER2high and ERhigh patients. This trend was also verified by tissue microarray (TMA) analysis. KRT17 was found to be involved in some antitumor immune pathways, especially the IL-17 signaling pathway, and associated with multiple immune cells, such as natural killer (NK) and CD4+ T cells. In conclusion, high expression of KRT17 predicted favorable prognosis in BC patients with higher HER2 expression. This result may indicate that KRT17 plays a different role depending on the level of HER2 expression and could serve as a promising and sensitive biomarker for the diagnosis and prognostication of HER2high BC.
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Affiliation(s)
- Shasha Tang
- Department of Breast Surgery, Yangpu Hospital, School of Medicine, Tongji University, No.450 Tengyue Road, Shanghai 200090, China
| | - Wenjing Liu
- Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 201100, China
| | - Liyun Yong
- Department of Breast Surgery, Yangpu Hospital, School of Medicine, Tongji University, No.450 Tengyue Road, Shanghai 200090, China
| | - Dongyang Liu
- Department of Breast Surgery, Yangpu Hospital, School of Medicine, Tongji University, No.450 Tengyue Road, Shanghai 200090, China
| | - Xiaoyan Lin
- Department of Breast Surgery, Yangpu Hospital, School of Medicine, Tongji University, No.450 Tengyue Road, Shanghai 200090, China
| | - Yuan Huang
- Cellomics International Limited, Hong Kong, China
| | - Hui Wang
- Laboratory of Tumor Molecular Biology, School of Basic Medical Sciences, Shanghai University of Medicine and Health Sciences, No.279 Zhouzhu Highway, Shanghai 201318, China
- Correspondence: (H.W.); (F.C.)
| | - Fengfeng Cai
- Department of Breast Surgery, Yangpu Hospital, School of Medicine, Tongji University, No.450 Tengyue Road, Shanghai 200090, China
- Correspondence: (H.W.); (F.C.)
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The cytokeratin 17 expression in primary ovarian tumors has diagnostic but not prognostic significance. Virchows Arch 2022; 481:201-212. [PMID: 35554675 DOI: 10.1007/s00428-022-03338-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/16/2022] [Accepted: 05/10/2022] [Indexed: 10/18/2022]
Abstract
We assessed the value of cytokeratin 17 (CK17) expression for the differential diagnosis between primary ovarian mucinous tumors and metastases from the gastrointestinal tract (GIT) and the significance of CK17 expression in a broad spectrum of primary ovarian tumors with respect to their prognosis. The sample set consisted of 554 primary ovarian tumors and 255 GIT tumors. In the primary ovarian tumors, a higher CK17 expression (in > 10% of tumors cells) was present only in 0-11.4% of all tumors (including mucinous tumors, micropapillary serous borderline tumors, clear cell, endometrioid, and high-grade serous carcinomas). The only exception was low-grade serous carcinoma, where higher CK17 expression was present in 24% of cases. Concerning GIT tumors, the higher levels of CK 17 expression (in > 10% of tumor cells) were observed in the upper GIT tumors (68.5% of pancreatic ductal adenocarcinoma, 61.6% of gallbladder adenocarcinoma, and 46% of gastric adenocarcinoma), which differs substantially not only from most of the primary ovarian tumors, but also from colorectal carcinoma (3.7%; p < 0.001). The results of our study suggest that expression of CK17 can potentially be used as an adjunct marker in differential diagnosis between primary ovarian mucinous tumors and metastases from the upper GIT, but not from colorectal carcinoma. However, in GIT tumors, CK17 can be used in the differential diagnosis between adenocarcinomas of the upper and lower GIT. Statistical analysis did not reveal strong association of CK17 expression with clinicopathological variables or patient outcomes in any primary ovarian tumors.
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Zhang H, Zhang Y, Xia T, Lu L, Luo M, Chen Y, Liu Y, Li Y. The Role of Keratin17 in Human Tumours. Front Cell Dev Biol 2022; 10:818416. [PMID: 35281081 PMCID: PMC8912659 DOI: 10.3389/fcell.2022.818416] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/03/2022] [Indexed: 12/24/2022] Open
Abstract
Keratins are a group of proteins that can constitute intermediate fibers. It is a component of the cytoskeleton and plays an important role in cell protection and structural support. Keratin 17, a Type I keratin, is a multifunctional protein that regulates a variety of biological processes, including cell growth, proliferation, migration, apoptosis and signal transduction. Abnormal expression of KRT17 is associated with a variety of diseases, such as skin diseases. In recent years, studies have shown that KRT17 is abnormally expressed in a variety of malignant tumours, such as lung cancer, cervical cancer, oral squamous cell carcinoma and sarcoma. These abnormal expressions are related to the occurrence, development and prognosis of malignant tumors. In this review, we summarized the expression patterns of KRT17 in a variety of malignant tumours, the role of KRT17 in the development and prognosis of different malignant tumors and its molecular mechanisms. We also discuss the potential clinical application of KRT17 as a valuable therapeutic target.
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Affiliation(s)
- Hanqun Zhang
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Yun Zhang
- Department of Pathology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Tingting Xia
- Department of Nephrology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Liang Lu
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Min Luo
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Yanping Chen
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Yuncong Liu
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
- *Correspondence: Yuncong Liu, ; Yong Li,
| | - Yong Li
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
- *Correspondence: Yuncong Liu, ; Yong Li,
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10
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Foote AG, Lungova V, Thibeault SL. Piezo1-expressing vocal fold epithelia modulate remodeling via effects on self-renewal and cytokeratin differentiation. Cell Mol Life Sci 2022; 79:591. [PMID: 36376494 PMCID: PMC9663367 DOI: 10.1007/s00018-022-04622-6] [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: 06/15/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022]
Abstract
Mechanoreceptors are implicated as functional afferents within mucosa of the airways and the recent discovery of mechanosensitive channels Piezo1 and Piezo2 has proved essential for cells of various mechanically sensitive tissues. However, the role for Piezo1/2 in vocal fold (VF) mucosal epithelia, a cell that withstands excessive biomechanical insult, remains unknown. The purpose of this study was to test the hypothesis that Piezo1 is required for VF mucosal repair pathways of epithelial cell injury. Utilizing a sonic hedgehog (shh) Cre line for epithelial-specific ablation of Piezo1/2 mechanoreceptors, we investigated 6wk adult VF mucosa following naphthalene exposure for repair strategies at 1, 3, 7 and 14 days post-injury (dpi). PIEZO1 localized to differentiated apical epithelia and was paramount for epithelial remodeling events. Injury to wildtype epithelium was most appreciated at 3 dpi. Shhcre/+; Piezo1loxP/loxP, Piezo2 loxP/+ mutant epithelium exhibited severe cell/nuclear defects compared to injured controls. Conditional ablation of Piezo1 and/or Piezo2 to uninjured VF epithelium did not result in abnormal phenotypes across P0, P15 and 6wk postnatal stages compared to heterozygote and control tissue. Results demonstrate a role for Piezo1-expressing VF epithelia in regulating self-renewal via effects on p63 transcription and YAP subcellular translocation-altering cytokeratin differentiation.
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Affiliation(s)
- Alexander G. Foote
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, USA
| | - Vlasta Lungova
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, USA
| | - Susan L. Thibeault
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Wisconsin-Madison, Wisconsin, USA
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11
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Diagnostic Value of Cytokeratin 17 during Oral Carcinogenesis: An Immunohistochemical Study. Int J Dent 2021; 2021:4089549. [PMID: 34853592 PMCID: PMC8629611 DOI: 10.1155/2021/4089549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 09/19/2021] [Accepted: 10/30/2021] [Indexed: 12/03/2022] Open
Abstract
Background Little is known about the role of cytokeratin 17 (CK17) during oral carcinogenesis. CK17 expression in oral leukoplakia (OL), the most encountered oral potentially malignant disorders and oral squamous cell carcinoma (OSCC), remains very limited. To determine the role of CK17 during oral carcinogenesis and its potential diagnostic marker in oral premalignant and malignant lesions, this study evaluated CK17 expression in OL without dysplasia, OL with dysplasia, and OSCC. CK17 expression in these tissues was compared with those of normal oral mucosa (NOM). Additionally, the relationship between CK17 expression and clinicopathologic factors of OSCC was investigated. Methods CK17 expression was evaluated in 186 samples consisting of 12 NOM, 33 OL without dysplasia, 58 OL with dysplasia, and 83 OSCC using immunohistochemistry. The proportion of positively immunostained cells was evaluated and scored. Results CK17 was expressed in 8.3%, 54.5%, 74.1%, and 90.4% of NOM, OL without dysplasia, OL with dysplasia, and OSCC, respectively. NOM had a significantly lower CK17 score than OL with dysplasia (p=0.0003) and OSCC (p < 0.0001). A significant association between CK17 expression and histopathologic differentiation of OSCC was found. Tumors with well differentiation had high CK17 expression compared with those of moderate and poor differentiation. Conclusion CK17 was overexpressed in OL with dysplasia and OSCC, suggesting that CK17 plays a pivotal role in the development of premalignant lesions and OSCC. Of clinical significance, CK17 may be a good diagnostic marker for oral premalignant lesions and OSCC. Additionally, CK17 could be used as an objective tool to classify histopathologic grade in OSCC. The findings that CK17 expression is high in OSCC but low in NOM imply that CK17 may serve as a potential therapeutic target for OSCC.
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12
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Nair RR, Hsu J, Jacob JT, Pineda CM, Hobbs RP, Coulombe PA. A role for keratin 17 during DNA damage response and tumor initiation. Proc Natl Acad Sci U S A 2021; 118:e2020150118. [PMID: 33762306 PMCID: PMC8020757 DOI: 10.1073/pnas.2020150118] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
High levels of the intermediate filament protein keratin 17 (K17) are associated with poor prognoses for several human carcinomas. Studies in mouse models have shown that K17 expression is positively associated with growth, survival, and inflammation in skin and that lack of K17 delays onset of tumorigenesis. K17 occurs in the nucleus of human and mouse tumor keratinocytes where it impacts chromatin architecture, gene expression, and cell proliferation. We report here that K17 is induced following DNA damage and promotes keratinocyte survival. The presence of nuclear K17 is required at an early stage of the double-stranded break (DSB) arm of the DNA damage and repair (DDR) cascade, consistent with its ability to associate with key DDR effectors, including γ-H2A.X, 53BP1, and DNA-PKcs. Mice lacking K17 or with attenuated K17 nuclear import showed curtailed initiation in a two-step skin carcinogenesis paradigm. The impact of nuclear-localized K17 on DDR and cell survival provides a basis for the link between K17 induction and poor clinical outcomes for several human carcinomas.
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MESH Headings
- 9,10-Dimethyl-1,2-benzanthracene/administration & dosage
- 9,10-Dimethyl-1,2-benzanthracene/toxicity
- Active Transport, Cell Nucleus
- Animals
- Carcinogenesis/chemically induced
- Carcinogenesis/genetics
- Carcinogenesis/pathology
- Carcinoma/chemically induced
- Carcinoma/genetics
- Carcinoma/pathology
- Cell Nucleus/metabolism
- Cell Survival/genetics
- DNA Breaks, Double-Stranded/drug effects
- DNA Repair
- Female
- Gene Knockout Techniques
- HeLa Cells
- Humans
- Intravital Microscopy
- Keratin-17/genetics
- Keratin-17/metabolism
- Keratinocytes
- Keratins/genetics
- Keratins/metabolism
- Male
- Mice, Knockout
- Neoplasms, Experimental/chemically induced
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/pathology
- Time-Lapse Imaging
- Mice
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Affiliation(s)
- Raji R Nair
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Joshua Hsu
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205
| | - Justin T Jacob
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205
| | - Christopher M Pineda
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Ryan P Hobbs
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205;
| | - Pierre A Coulombe
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109;
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109
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13
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MACE RNA sequencing analysis of conjunctival squamous cell carcinoma and papilloma using formalin-fixed paraffin-embedded tumor tissue. Sci Rep 2020; 10:21292. [PMID: 33277602 PMCID: PMC7718249 DOI: 10.1038/s41598-020-78339-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/23/2020] [Indexed: 12/12/2022] Open
Abstract
Recent advances in the field of biomedical research allow for elucidation of the transcriptional signature of rare tumors such as conjunctival squamous cell carcinoma (SCC). In this study we compare its expression profile to conjunctival papilloma (Pap) and healthy conjunctival tissue (Ctrl) and develop a classification tool to differentiate these entities. Seven conjunctival SCC, seven Pap and ten Ctrl were formalin-fixed and paraffin-embedded (FFPE) and analyzed using Massive Analysis of cDNA Ends (MACE) RNA sequencing. Differentially expressed genes (DEG) and gene ontology (GO) clusters were explored and the abundance of involved cell types was quantified by xCell. Finally, a classification model was developed to distinguish SCC from Pap and Ctrl. Among the most prominent DEG in SCC a plethora of keratins were upregulated when compared to Pap and Ctrl. xCell analysis revealed an enrichment of immune cells, including activated dendritic cells and T-helper type 1 cells (Th1), in SCC when compared to Ctrl. The generated classification model could reliably discriminate between the three entities according to the expression pattern of 30 factors. This study provides a transcriptome-wide gene expression profile of rare conjunctival SCC. The analysis identifies distinct keratins, as well as dendritic and Th1 cells as important mediators in SCC. Finally, the provided gene expression classifier may become an aid to the conventional histological classification of conjunctival tumors in uncertain cases.
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14
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Rusinek D, Pfeifer A, Cieslicka M, Kowalska M, Pawlaczek A, Krajewska J, Szpak-Ulczok S, Tyszkiewicz T, Halczok M, Czarniecka A, Zembala-Nozynska E, Chekan M, Lamch R, Handkiewicz-Junak D, Ledwon A, Paliczka-Cieslik E, Kropinska A, Jarzab B, Oczko-Wojciechowska M. TERT Promoter Mutations and Their Impact on Gene Expression Profile in Papillary Thyroid Carcinoma. Cancers (Basel) 2020; 12:E1597. [PMID: 32560331 PMCID: PMC7352936 DOI: 10.3390/cancers12061597] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Telomerase reverse transcriptase promoter (TERTp) mutations are related to a worse prognosis in various malignancies, including papillary thyroid carcinoma (PTC). Since mechanisms responsible for the poorer outcome of TERTp(+) patients are still unknown, searching for molecular consequences of TERTp mutations in PTC was the aim of our study. METHODS The studied cohort consisted of 54 PTCs, among them 24 cases with distant metastases. BRAF V600E, RAS, and TERTp mutational status was evaluated in all cases. Differences in gene expression profile between TERTp(+) and TERTp(-) PTCs were examined using microarrays. The evaluation of signaling pathways and gene ontology was based on the Gene Set Enrichment Analysis. RESULTS Fifty-nine percent (32/54) of analyzed PTCs were positive for at least one mutation: 27 were BRAF(+), among them eight were TERTp(+), and 1 NRAS(+), whereas five other samples harbored RAS mutations. Expression of four genes significantly differed in BRAF(+)TERTp(+) and BRAF(+)TERTp(-) PTCs. Deregulation of pathways involved in key cell processes was observed. CONCLUSIONS TERTp mutations are related to higher PTC aggressiveness. CRABP2 gene was validated as associated with TERTp mutations. However, its potential use in diagnostics or risk stratification in PTC patients needs further studies.
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Affiliation(s)
- Dagmara Rusinek
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
| | - Aleksandra Pfeifer
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
| | - Marta Cieslicka
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
| | - Malgorzata Kowalska
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
| | - Agnieszka Pawlaczek
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
| | - Jolanta Krajewska
- Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (J.K.); (S.S.-U.); (D.H.-J.); (A.L.); (E.P.-C.); (A.K.); (B.J.)
| | - Sylwia Szpak-Ulczok
- Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (J.K.); (S.S.-U.); (D.H.-J.); (A.L.); (E.P.-C.); (A.K.); (B.J.)
| | - Tomasz Tyszkiewicz
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
| | - Monika Halczok
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
| | - Agnieszka Czarniecka
- Department of Oncological and Reconstructive Surgery, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland;
| | - Ewa Zembala-Nozynska
- Tumor Pathology Department, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (E.Z.-N.); (M.C.); (R.L.)
| | - Mykola Chekan
- Tumor Pathology Department, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (E.Z.-N.); (M.C.); (R.L.)
| | - Roman Lamch
- Tumor Pathology Department, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (E.Z.-N.); (M.C.); (R.L.)
| | - Daria Handkiewicz-Junak
- Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (J.K.); (S.S.-U.); (D.H.-J.); (A.L.); (E.P.-C.); (A.K.); (B.J.)
| | - Aleksandra Ledwon
- Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (J.K.); (S.S.-U.); (D.H.-J.); (A.L.); (E.P.-C.); (A.K.); (B.J.)
| | - Ewa Paliczka-Cieslik
- Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (J.K.); (S.S.-U.); (D.H.-J.); (A.L.); (E.P.-C.); (A.K.); (B.J.)
| | - Aleksandra Kropinska
- Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (J.K.); (S.S.-U.); (D.H.-J.); (A.L.); (E.P.-C.); (A.K.); (B.J.)
| | - Barbara Jarzab
- Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (J.K.); (S.S.-U.); (D.H.-J.); (A.L.); (E.P.-C.); (A.K.); (B.J.)
| | - Malgorzata Oczko-Wojciechowska
- Department of Genetic and Molecular Diagnostics of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland; (A.P.); (M.C.); (M.K.); (A.P.); (T.T.); (M.H.); (M.O.-W.)
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15
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Chen P, Shen Z, Fang X, Wang G, Wang X, Wang J, Xi S. Silencing of keratin 17 by lentivirus-mediated short hairpin RNA inhibits the proliferation of PANC-1 human pancreatic cancer cells. Oncol Lett 2020; 19:3531-3541. [PMID: 32269627 PMCID: PMC7114934 DOI: 10.3892/ol.2020.11469] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 01/30/2020] [Indexed: 01/05/2023] Open
Abstract
Keratin 17 (KRT17) has been demonstrated to be a potential biological marker for the prediction of prognosis in particular types of cancer. The aim of the present study was to investigate the molecular mechanisms underlying the function of KRT17 in the pancreatic cancer (PAC) cell line PANC-1 and the potential of KRT17 as a therapeutic target for PAC. KRT17 expression levels were analyzed using quantitative PCR and compared with histological data using bioinformatics tools in PAC samples and three human PAC cell lines. Cell proliferation was determined using an MTT assay, in addition to cell cycle distribution and apoptosis analysis using flow cytometry, colony formation assay using Giemsa staining and cell motility analysis using a Transwell migration assay. Tumor growth was evaluated in vivo in nude mice. The expression levels of a number of signaling molecules were measured to establish the potential mechanism by which silencing KRT17 expression affected PAC PANC-1 cells. Increased levels of KRT17 expression were observed in human PAC compared with normal tissues, as well as in three human PAC cell lines (MIA PaCa-2, PANC-1 and KP-3 cells) compared with the H6c7 human immortal pancreatic duct epithelial cell line. High expression levels of KRT17 in PAC samples were associated with poor overall survival (P=0.036) and disease-free survival (P=0.017). Lentivirus-mediated KRT17 silencing inhibited cell proliferation, colony formation and migration, but promoted apoptosis and resulted in cell cycle arrest in the G0/G1 phase in PANC-1 cells. In addition, KRT17 knockdown inhibited in vivo tumor growth. KRT17 knockdown induced dysregulation of ERK1/2 and upregulation of the pro-apoptotic Bcl-2 protein Bad. In conclusion, the present study demonstrated that elevated KRT17 levels are positively associated with pancreatic cancer progression; KRT17 knockdown suppressed cell growth, colony formation, migration and tumor growth, and induced apoptosis and cell cycle arrest, affecting ERK1/2/Bad signaling. Therefore, the results of the present study suggested that KRT17 may be a potential target for the treatment of pancreatic cancer.
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Affiliation(s)
- Peng Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Zhengchao Shen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Xiaosan Fang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Guannan Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Xiaoming Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Jun Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Shihang Xi
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
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16
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Wang W, Uberoi A, Spurgeon M, Gronski E, Majerciak V, Lobanov A, Hayes M, Loke A, Zheng ZM, Lambert PF. Stress keratin 17 enhances papillomavirus infection-induced disease by downregulating T cell recruitment. PLoS Pathog 2020; 16:e1008206. [PMID: 31968015 PMCID: PMC6975545 DOI: 10.1371/journal.ppat.1008206] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/12/2019] [Indexed: 12/30/2022] Open
Abstract
High-risk human papillomaviruses (HPVs) cause 5% of human cancers. Despite the availability of HPV vaccines, there remains a strong urgency to find ways to treat persistent HPV infections, as current HPV vaccines are not therapeutic for individuals already infected. We used a mouse papillomavirus infection model to characterize virus-host interactions. We found that mouse papillomavirus (MmuPV1) suppresses host immune responses via overexpression of stress keratins. In mice deficient for stress keratin K17 (K17KO), we observed rapid regression of papillomas dependent on T cells. Cellular genes involved in immune response were differentially expressed in the papillomas arising on the K17KO mice correlating with increased numbers of infiltrating CD8+ T cells and upregulation of IFNγ-related genes, including CXCL9 and CXCL10, prior to complete regression. Blocking the receptor for CXCL9/CXCL10 prevented early regression. Our data provide a novel mechanism by which papillomavirus-infected cells evade host immunity and defines new therapeutic targets for treating persistent papillomavirus infections.
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Affiliation(s)
- Wei Wang
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI, United States of America
| | - Aayushi Uberoi
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, United States of America
| | - Megan Spurgeon
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI, United States of America
| | - Ellery Gronski
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI, United States of America
| | - Vladimir Majerciak
- Tumor Virus RNA Biology Section, National Cancer Institute, Frederick, MD, United States of America
| | - Alexei Lobanov
- CCR Collaborative Bioinformatics Resource (CCBR), National Cancer Institute, Bethesda, MD, United States of America
| | - Mitchell Hayes
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI, United States of America
| | - Amanda Loke
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI, United States of America
| | - Zhi-Ming Zheng
- Tumor Virus RNA Biology Section, National Cancer Institute, Frederick, MD, United States of America
| | - Paul F. Lambert
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI, United States of America
- * E-mail:
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17
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Roh V, Hiou-Feige A, Misetic V, Rivals JP, Sponarova J, Teh MT, Ferreira Lopes S, Truan Z, Mermod M, Monnier Y, Hess J, Tolstonog GV, Simon C. The transcription factor FOXM1 regulates the balance between proliferation and aberrant differentiation in head and neck squamous cell carcinoma. J Pathol 2019; 250:107-119. [PMID: 31465124 DOI: 10.1002/path.5342] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 08/01/2019] [Accepted: 08/22/2019] [Indexed: 12/11/2022]
Abstract
Sustained expression of FOXM1 is a hallmark of nearly all human cancers including squamous cell carcinomas of the head and neck (HNSCC). HNSCCs partially preserve the epithelial differentiation program, which recapitulates fetal and adult traits of the tissue of tumor origin but is deregulated by genetic alterations and tumor-supporting pathways. Using shRNA-mediated knockdown, we demonstrate a minimal impact of FOXM1 on proliferation and migration of HNSCC cell lines under standard cell culture conditions. However, FOXM1 knockdown in three-dimensional (3D) culture and xenograft tumor models resulted in reduced proliferation, decreased invasion, and a more differentiated-like phenotype, indicating a context-dependent modulation of FOXM1 activity in HNSCC cells. By ectopic overexpression of FOXM1 in HNSCC cell lines, we demonstrate a reduced expression of cutaneous-type keratin K1 and involucrin as a marker of squamous differentiation, supporting the role of FOXM1 in modulation of aberrant differentiation in HNSCC. Thus, our data provide a strong rationale for targeting FOXM1 in HNSCC. © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Vincent Roh
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Agnès Hiou-Feige
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Vinko Misetic
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Jean-Paul Rivals
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Jana Sponarova
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Muy-Teck Teh
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Silvia Ferreira Lopes
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Zinnia Truan
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Maxime Mermod
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Yan Monnier
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Jochen Hess
- Department of Otorhinolaryngology, Head and Neck Surgery, Heidelberg University Hospital and Molecular Mechanisms of Head and Neck Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Genrich V Tolstonog
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Christian Simon
- Department of Otolaryngology - Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Wang Z, Yang MQ, Lei L, Fei LR, Zheng YW, Huang WJ, Li ZH, Liu CC, Xu HT. Overexpression of KRT17 promotes proliferation and invasion of non-small cell lung cancer and indicates poor prognosis. Cancer Manag Res 2019; 11:7485-7497. [PMID: 31496806 PMCID: PMC6689799 DOI: 10.2147/cmar.s218926] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 07/22/2019] [Indexed: 12/21/2022] Open
Abstract
Purpose Keratin 17 (KRT17) is a 48 KDa type I intermediate filament, which is mainly expressed in epithelial basal cells. KRT17 has been shown to be overexpressed in many malignant tumors and play an important role in the occurrence and development of tumors. Therefore, this study explored the role and underlying mechanism of KRT17 in non-small cell lung cancers (NSCLC). Methods KRT17 expression and its correlations with clinicopathological factors were examined in lung cancer tissues by immunohistochemistry. The prognosis value of KRT17 in NSCLCs was retrieved from The Cancer Genome Atlas (TCGA) online databases. The expression level of KRT17 was increased or decreased by KRT17 gene transfection or small RNA interference in lung cancer cells, respectively. Further, proliferation and invasiveness of lung cancer cells were determined by cell proliferation and invasion assays, respectively. Finally, expression levels of proteins related to Wnt signaling pathways and epithelial mesenchymal transition (EMT) were detected by Western blot. Results The expression level of KRT17 in NSCLCs was significantly higher than normal lung tissues. High expression of KRT17 predicted poor prognosis of patients with NSCLCs, especially lung adenocarcinomas, and was correlated with poor differentiation and lymphatic metastasis. Overexpression of KRT17 enhanced, while KRT17 knockdown inhibited, the proliferation and invasiveness of lung cancer cells. Overexpression of KRT17 up-regulated β-catenin activity and levels of Wnt target genes, such as cyclin D1, c-Myc, and MMP7. Moreover, KRT17 promoted EMT by up-regulating Vimentin, MMP-9, and Snail expression and down-regulating E-cadherin expression. Conclusion Overexpression of KRT17 is common in NSCLCs and indicates poor prognosis. Overexpression of KRT17 enhances the proliferation and invasiveness of NSCLC cells by activating the Wnt signaling pathway and EMT process. KRT17 is a potential indicator of NSCLC progression and poor survival.
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Affiliation(s)
- Zhao Wang
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China.,Department of Pathology, General Hospital of Heilongjiang Land Reclamation Bureau, Harbin 150088, People's Republic of China
| | - Mai-Qing Yang
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China.,Department of Pathology, Changyi People's Hospital, Changyi, People's Republic of China
| | - Lei Lei
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China
| | - Liang-Ru Fei
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China
| | - Yi-Wen Zheng
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China
| | - Wen-Jing Huang
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China
| | - Zhi-Han Li
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China
| | - Chen-Chen Liu
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China
| | - Hong-Tao Xu
- Department of Pathology, The First Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, People's Republic of China
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19
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Keratin 17 identifies the most lethal molecular subtype of pancreatic cancer. Sci Rep 2019; 9:11239. [PMID: 31375762 PMCID: PMC6677817 DOI: 10.1038/s41598-019-47519-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/18/2019] [Indexed: 02/06/2023] Open
Abstract
Although the overall five-year survival of patients with pancreatic ductal adenocarcinoma (PDAC) is dismal, there are survival differences between cases with clinically and pathologically indistinguishable characteristics, suggesting that there are uncharacterized properties that drive tumor progression. Recent mRNA sequencing studies reported gene-expression signatures that define PDAC molecular subtypes that correlate with differences in survival. We previously identified Keratin 17 (K17) as a negative prognostic biomarker in other cancer types. Here, we set out to determine if K17 is as accurate as molecular subtyping of PDAC to identify patients with the shortest survival. K17 mRNA was analyzed in two independent PDAC cohorts for discovery (n = 124) and validation (n = 145). Immunohistochemical localization and scoring of K17 immunohistochemistry (IHC) was performed in a third independent cohort (n = 74). Kaplan-Meier and Cox proportional-hazard regression models were analyzed to determine cancer specific survival differences in low vs. high mRNA K17 expressing cases. We established that K17 expression in PDACs defines the most aggressive form of the disease. By using Cox proportional hazard ratio, we found that increased expression of K17 at the IHC level is also associated with decreased survival of PDAC patients. Additionally, within PDACs of advanced stage and negative surgical margins, K17 at both mRNA and IHC level is sufficient to identify the subgroup with the shortest survival. These results identify K17 as a novel negative prognostic biomarker that could inform patient management decisions.
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20
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Alvi E, Gupta R, Borok RZ, Escobar-Hoyos L, Shroyer KR. Overview of established and emerging immunohistochemical biomarkers and their role in correlative studies in MRI. J Magn Reson Imaging 2019; 51:341-354. [PMID: 31041822 DOI: 10.1002/jmri.26763] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 04/13/2019] [Indexed: 01/03/2023] Open
Abstract
Clinical practice in radiology and pathology requires professional expertise and many years of training to visually evaluate and interpret abnormal phenotypic features in medical images and tissue sections to generate diagnoses that guide patient management and treatment. Recent advances in digital image analysis methods and machine learning have led to significant interest in extracting additional information from medical and digital whole-slide images in radiology and pathology, respectively. This has led to significant interest and research in radiomics and pathomics to correlate phenotypic features of disease with image analytics in order to identify image-based biomarkers. The expanding role of big data in radiology and pathology parallels the development and role of immunohistochemistry (IHC) in the daily practice of pathology. IHC methods were initially developed to provide additional information to help classify tumors and then transformed into an indispensable tool to guide treatment in many types of cancer. IHC markers are used in daily practice to identify specific types of cells and highlight their distributions in tissues in order to distinguish benign from neoplastic cells, determine tumor origin, subclassify neoplasms, and support and confirm diagnoses. In this regard, radiomics, pathomics, and IHC methods are very similar since they enable the extraction of image-based features to characterize various properties of diseases. Due to the dramatic advancements in recent radiomics research, we provide a brief overview of the role of established and emerging IHC biomarkers in various tumor types that have been correlated with radiologic biomarkers to improve diagnostic accuracy, predict prognosis, guide patient management, and select treatment strategies. Level of Evidence: 5 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2020;51:341-354.
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Affiliation(s)
- Emaan Alvi
- Department of Pathology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
| | - Rajarsi Gupta
- Department of Pathology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA.,Department of Biomedical Informatics, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
| | - Raphael Z Borok
- Department of Pathology, Advocate Good Samaritan Hospital, Downers Grove, Illinois, USA
| | - Luisa Escobar-Hoyos
- Department of Pathology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA.,David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Biology, Genetic Toxicology and Cytogenetics Research Group, School of Natural Sciences and Education, Universidad Del Cauca, Popayán, Colombia
| | - Kenneth R Shroyer
- Department of Pathology, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
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21
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Yang L, Zhang S, Wang G. Keratin 17 in disease pathogenesis: from cancer to dermatoses. J Pathol 2018; 247:158-165. [PMID: 30306595 DOI: 10.1002/path.5178] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/17/2018] [Accepted: 10/02/2018] [Indexed: 12/16/2022]
Abstract
Keratin 17 (K17) is a type I intermediate filament mainly expressed in the basal cells of epithelia. As a multifaceted cytoskeletal protein, K17 regulates a myriad of biological processes, including cell proliferation and growth, skin inflammation and hair follicle cycling. Aberrant overexpression of K17 is found in various diseases ranging from psoriasis to malignancies such as breast, cervical, oral squamous and gastric carcinomas. Moreover, genetic mutation in KRT17 is related to tissue-specific diseases, represented by steatocystoma multiplex and pachyonychia congenita. In this review, we summarize our findings concerning the regulatory mechanisms of K17 overexpression in psoriasis and compare them to the literature relating to other diseases. We discuss data that proinflammatory cytokines, including interleukin-17 (IL-17), IL-22, interferon-gamma (IFN-γ), transforming growth factor-beta (TGF-β) and transcription factors glioma-associated oncogene homolog 1/2 (Gli1/2), Nrf2 and p53 can regulate K17 by transcriptional and translational control. Moreover, post-translational modification, including phosphorylation and ubiquitination, is involved in the regulation of K17 stability and biological functions. We therefore review the current understanding of the K17 regulatory mechanism and its pathogenic role in diseases from dermatoses to cancer. Prospects for anti-K17 therapy in diagnosis, prognosis and disease treatment are also discussed. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Luting Yang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR, China
| | - Shaolong Zhang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR, China
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