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Shanmugam A, Rudasill J, Criswell S. Increase of KLK7, cytokeratin 5/6, and elafin expression in head and neck squamous cell carcinoma compared with lung squamous cell carcinoma. J Histotechnol 2024:1-7. [PMID: 38189409 DOI: 10.1080/01478885.2023.2301123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/27/2023] [Indexed: 01/09/2024]
Abstract
Squamous cell carcinoma is the most common primary tumor in the head and neck epithelium and is the second most common primary tumor type in the lung. Although morphologically indistinguishable from each other with hematoxylin and eosin stain on histology, the tumors have different protein expression profiles. Using 24 formalin-fixed paraffin embedded squamous cell carcinomas of the lung and 24 squamous cell carcinomas in the head and neck, protein expression for cytokeratin 5/6, kallikrein 7, and elafin was evaluated by immunohistochemistry. All three proteins were found to evidence higher expression in head and neck squamous cell carcinoma as compared with that of squamous cell carcinoma of the lung. The differences in expression may help clinical differentiation between primary tumors of the lung from metastatic tumors to the lung from the oral/laryngeal cavities.
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Affiliation(s)
- Angelin Shanmugam
- Department of Diagnostic and Health Sciences, College of Health Professions, University of Tennessee Health Science Center, Memphis, TN, USA
| | - JoAnna Rudasill
- Department of Diagnostic and Health Sciences, College of Health Professions, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Sheila Criswell
- Department of Diagnostic and Health Sciences, College of Health Professions, University of Tennessee Health Science Center, Memphis, TN, USA
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2
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Li A, Li Y, Li Y, Zhang M, Zhang H, Chen F. Identification and validation of key genes associated with pathogenesis and prognosis of gastric cancer. PeerJ 2023; 11:e16243. [PMID: 37868053 PMCID: PMC10586292 DOI: 10.7717/peerj.16243] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/14/2023] [Indexed: 10/24/2023] Open
Abstract
Background Gastric cancer (GC) is the fourth leading cause of cancer-related death worldwide. However, the precise mechanisms and specific biomarkers of GC have not been fully elucidated. We therefore sought to identify and validate the genes associated with GC. Methods RNA sequencing was performed on gastric tissue specimens from 10 cases each of non-atrophic gastritis (NAG), intestinal metaplasia (IM), and GC. Validation of gene expression was conducted through immunohistochemistry (IHC) staining. The Kaplan-Meier Plotter database was utilized to screen genes associated with prognosis, while protein-protein interaction analysis was conducted to identify hub genes. Results In GC-IM, the differentially expressed genes (DEGs) were predominantly enriched in pathways related to ECM-receptor interaction, focal adhesion, PI3K-Akt pathway, and pathways in cancer. Conversely, in IM-NAG, the DEGs were primarily enriched in pathways associated with fat digestion and absorption, pancreatic secretion, and retinol metabolism. IHC staining revealed elevated expression levels of KLK7 and KLK10 in GC. Specifically, KLK7 expression was found to be correlated with differentiation (P = 0.025) and depth of invasion (P = 0.007) in GC, while both KLK7 and KLK10 were associated with the overall survival (P < 0.05). Furthermore, a total of ten hub genes from DEGs in GC-NAG (COL6A2, COL1A1, COL4A1, COL1A2, SPARC, COL4A2, FN1, PCOLCE, SERPINH1, LAMB1) and five hub genes in IM-NAG (SI, DPP4, CLCA1, MEP1A, OLFM4) were demonstrated to have a significant correlation with the prognosis of GC. Conclusions The present study successfully identified and validated crucial genes associated with GC, providing valuable insights into the underlying mechanisms of this disease. The findings of this study have the potential to inform clinical practice.
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Affiliation(s)
- Ai Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yan Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yueyue Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Mingming Zhang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hong Zhang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Feixue Chen
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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3
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Kunath A, Weiner J, Krause K, Rehders M, Pejkovska A, Gericke M, Biniossek ML, Dommel S, Kern M, Ribas-Latre A, Schilling O, Brix K, Stumvoll M, Klöting N, Heiker JT, Blüher M. Role of Kallikrein 7 in Body Weight and Fat Mass Regulation. Biomedicines 2021; 9:131. [PMID: 33572949 DOI: 10.3390/biomedicines9020131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/21/2021] [Accepted: 01/25/2021] [Indexed: 02/08/2023] Open
Abstract
Increased plasma and adipose tissue protease activity is observed in patients with type 2 diabetes and obesity. It has been proposed that specific proteases contribute to the link between obesity, adipose tissue inflammation and metabolic diseases. We have recently shown that ablation of the serine protease kallikrein-related peptidase 7 (Klk7) specifically in adipose tissue preserves systemic insulin sensitivity and protects mice from obesity-related AT inflammation. Here, we investigated whether whole body Klk7 knockout (Klk7-/-) mice develop a phenotype distinct from that caused by reduced Klk7 expression in adipose tissue. Compared to littermate controls, Klk7-/- mice gain less body weight and fat mass both under chow and high fat diet (HFD) feeding, are hyper-responsive to exogenous insulin and exhibit preserved adipose tissue function due to adipocyte hyperplasia and lower inflammation. Klk7-/- mice exhibit increased adipose tissue thermogenesis, which is not related to altered thyroid function. These data strengthen our recently proposed role of Klk7 in the regulation of body weight, energy metabolism, and obesity-associated adipose tissue dysfunction. The protective effects of Klk7 deficiency in obesity are likely linked to a significant limitation of adipocyte hypertrophy. In conclusion, our data indicate potential application of specific KLK7 inhibitors to regulate KLK7 activity in the development of obesity and counteract obesity-associated inflammation and metabolic diseases.
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Yeo H, Ahn SS, Lee JY, Shin SY. EGR-1 acts as a transcriptional activator of KLK7 under IL-13 stimulation. Biochem Biophys Res Commun 2020; 534:303-309. [PMID: 33276948 DOI: 10.1016/j.bbrc.2020.11.089] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 11/22/2020] [Indexed: 01/20/2023]
Abstract
Kallikrein-related peptidase 7 (KLK7) is a chymotrypsin-like serine peptidase that plays a crucial role in regulating skin desquamation. KLK7 expression is highly upregulated in atopic dermatitis (AD) skin lesions in both humans and mice. Th2-lymphocyte-derived cytokines, including interleukin (IL)-4 and IL-13, have been shown to promote KLK7 expression in keratinocytes in patients with AD. However, the molecular mechanism underlying KLK7 expression remains poorly understood. Here, we demonstrated that the EGR-1-binding sequence (EBS) in the promoter region of KLK7 played a crucial role in IL-13-induced KLK7 transcription. Disruption of the EBS induced by a point mutation inhibited IL-13-induced KLK7 promoter activity. EGR-1 was shown to directly bind to the EBS, and EGR1 knockdown with shRNA abrogated IL-13-induced KLK7 expression. Using Egr1 knockout mice, we showed that Egr-1 was necessary for KLK7 expression in AD-like lesions induced by the repeated topical application of 2,4-dinitrobenzene on the dorsal skin of mice. We also demonstrated that the ERK1/2 mitogen-activated protein kinase (MAPK) pathway was responsible for EGR-1-dependent KLK7 transcription in response to IL-13 stimulation. Our findings delineate a signaling pathway that contributes to the regulation of KLK7 expression through the IL13-ERK MAPK-EGR1 signaling axis.
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Affiliation(s)
- Hyunjin Yeo
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Sung Shin Ahn
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Jeong Yeon Lee
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Soon Young Shin
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea; Cancer and Metabolism Institute, Konkuk University, Seoul, Republic of Korea.
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5
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Gong W, Liu Y, Diamandis EP, Kiechle M, Bronger H, Dorn J, Dreyer T, Magdolen V. Prognostic value of kallikrein-related peptidase 7 ( KLK7) mRNA expression in advanced high-grade serous ovarian cancer. J Ovarian Res 2020; 13:125. [PMID: 33087135 PMCID: PMC7579813 DOI: 10.1186/s13048-020-00725-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/02/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND High-grade serous ovarian cancer (HGSOC) is the most common and lethal subtype of ovarian cancer. A growing body of evidence suggests tumor-supporting roles of several members of the kallikrein-related peptidase (KLK) family, including KLK5 and KLK7, in this cancer subtype. In normal physiology, KLK5 and KLK7 are the major proteases involved in skin desquamation. Moreover, in several cancer types KLK5 and KLK7 co-expression has been observed. Recently, we have shown that elevated KLK5 mRNA levels are associated with an unfavorable prognosis in HGSOC. Therefore, the aim of this study was to investigate the clinical significance of KLK7 mRNA expression and to explore its relation to KLK5 levels in HGSOC. METHODS mRNA expression levels of KLK7 were quantified by qPCR in a well-characterized patient cohort afflicted with advanced high-grade serous ovarian cancer (FIGO III/IV, n = 139). Previously determined KLK5 mRNA as well as KLK5 and KLK7 antigen concentrations were used to evaluate the relationship between the expression patterns of both factors on the mRNA as well as protein level in tumor tissue of HGSOC patients. RESULTS There were strong, significant positive correlations between KLK5 and KLK7 both at the mRNA and the protein level, suggesting coordinate expression of these proteases in HGSOC. In univariate analyses, elevated KLK7 levels as well as the combination of KLK5 + KLK7 (high and/or high versus low/low) were significantly associated with worse progression-free survival (PFS). High mRNA expression levels of KLK7 and the combination of KLK5 and KLK7 showed a trend towards significance for overall survival (OS). In multivariate analyses, KLK7 mRNA expression represented an unfavorable, statistically significant independent predictor for PFS and OS. CONCLUSIONS The findings imply that both increased KLK5 and KLK7 mRNA expression levels represent unfavorable prognostic biomarkers in advanced high-grade serous ovarian cancer, whereby multivariate analyses indicate that KLK7 mRNA exhibits a stronger predictive value as compared to KLK5 mRNA and the combination of KLK5 and KLK7.
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Affiliation(s)
- Weiwei Gong
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany.,Department of Hematology-Oncology, Guangzhou Women and Children's Medical Center, Guangzhou, People's Republic of China
| | - Yueyang Liu
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany.,Department of Gynecology, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, People's Republic of China
| | - Eleftherios P Diamandis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Marion Kiechle
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Holger Bronger
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Julia Dorn
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Tobias Dreyer
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Viktor Magdolen
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Str. 22, D-81675, Munich, Germany.
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6
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Chen E, Zhu H, Yang Y, Wang L, Zhang J, Han Y, Liu X. Analysis of expression and prognosis of KLK7 in ovarian cancer. Open Med (Wars) 2020; 15:932-939. [PMID: 33336051 PMCID: PMC7712299 DOI: 10.1515/med-2020-0139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 08/11/2020] [Accepted: 08/23/2020] [Indexed: 12/16/2022] Open
Abstract
Background Ovarian cancer is one of the common malignant tumors in female reproductive organs. Kallikrein-related peptidase (KLK) 7 is a secreted serine peptidase that is related to different cancer. To investigate the expression and significance of KLK7 in ovarian cancer. Materials and methods The expression of KLK7 in human ovarian cancer was evaluated by Oncomine and Cancer Cell Line Encyclopedia database. Then the co-expression genes relevant to the KLK7 gene were analyzed by the Pearson correlation test. Finally, the impact of KLK7 on clinical prognosis was investigated in distinct subtypes of ovarian cancer patients by UALCAN database and Kaplan–Meier plotter database. Results It was found that the expression of KLK7 was higher in ovarian cancer compared with other types of cancer, such as gastric cancer and pancreatic cancer. The expression of KLK7 was found to be increased in four various ovarian cancer data sets compared with the healthy tissues. In addition, upregulation of KLK7 expression was associated with age and cancer stage. Moreover, survival analysis revealed that higher KLK7 expression was negatively associated with progression-free survival. Conclusion Knowledge of the expression of KLK7 may be useful for better understanding the outcome in ovarian cancer patients.
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Affiliation(s)
- Erhua Chen
- Department of Pharmacy and Medicine Pharmacy, Jiang Su College of nursing, Huaian, 223005, China
| | - Huifang Zhu
- Department of Pharmacy and Medicine Pharmacy, Jiang Su College of nursing, Huaian, 223005, China
| | - Yue Yang
- Department of Pharmacy and Medicine Pharmacy, Jiang Su College of nursing, Huaian, 223005, China
| | - Ling Wang
- Department of Pharmacy and Medicine Pharmacy, Jiang Su College of nursing, Huaian, 223005, China
| | - Jianhua Zhang
- Department of Pharmacy and Medicine Pharmacy, Jiang Su College of nursing, Huaian, 223005, China
| | - Yonghong Han
- Department of Pharmacy and Medicine Pharmacy, Jiang Su College of nursing, Huaian, 223005, China
| | - Xiang Liu
- Department of Pharmacy and Medicine Pharmacy, Jiang Su College of nursing, Huaian, 223005, China
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7
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Geng X, Babayeva L, Walch A, Aubele M, Groß E, Kiechle M, Bronger H, Dreyer T, Magdolen V, Dorn J. High levels of KLK7 protein expression are related to a favorable prognosis in triple-negative breast cancer patients. Am J Cancer Res 2020; 10:1785-1792. [PMID: 32642290 PMCID: PMC7339269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 05/12/2020] [Indexed: 06/11/2023] Open
Abstract
In normal physiology, kallikrein-related peptidase 7 (KLK7), together with other members of the kallikrein-related peptidase family, is mainly involved in skin desquamation and keratinization processes. Moreover, expression of KLK7 was shown in various tumor types to be dysregulated and to correlate to patients' survival time. However, there are contradictory reports in breast cancer whether KLK7 represents an unfavorable or favorable prognostic biomarker. In the present study, we examined the prognostic value of KLK7 protein expression in triple-negative breast cancer (TNBC), determined by immunohistochemistry (IHC). A cohort encompassing 133 TNBC specimens, present on tissue microarrays, was analyzed. For quantification of the staining intensity, an automated digital IHC image analysis algorithm was applied. In both Kaplan-Meier and univariate Cox analyses, elevated KLK7 protein levels were significantly linked with prolonged overall survival (OS). In multivariable Cox analysis, addition of KLK7 immunoreactivity scores to the base model (including the clinical parameters age, tumor size, and nodal status) demonstrated that KLK7 protein expression remained as a statistically significant, independent parameter for prolonged OS. These results strongly indicate that KLK7 is a favorable prognostic biomarker in triple-negative breast cancer.
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Affiliation(s)
- Xiaocong Geng
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM)Germany
| | - Lamiya Babayeva
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM)Germany
| | - Axel Walch
- Research Unit Analytical Pathology, Helmholtz Zentrum MünchenNeuherberg, Germany
| | - Michaela Aubele
- Institute of Pathology, Helmholtz Zentrum MünchenNeuherberg, Germany
| | - Eva Groß
- Department of Obstetrics and Gynecology, University of Munich (LMU)Germany
| | - Marion Kiechle
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM)Germany
| | - Holger Bronger
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM)Germany
| | - Tobias Dreyer
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM)Germany
| | - Viktor Magdolen
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM)Germany
| | - Julia Dorn
- Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich (TUM)Germany
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8
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Lim SC, Kee KH, Lee MJ, Hong R, Han SI. Extracellular acidity‑induced expression of Kallikrein‑related peptidases 7 and 8 is involved in increased invasiveness of gastric cancer cells. Oncol Rep 2020; 43:1705-1713. [PMID: 32323843 DOI: 10.3892/or.2020.7529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 02/17/2020] [Indexed: 02/07/2023] Open
Abstract
In several cancers, the acidic microenvironment of cancer cells has been implicated in enhanced malignancy and metastasis. In the present study, it was observed that gastric cancer cell lines, SNU601 and AGS, exposed to an acidic medium had increased invasiveness, as assessed using Matrigel‑coated Transwell analysis. The factors regulating such acidity‑mediated enhancement of invasiveness were investigated and it was revealed that a low‑pH environment markedly increased kallikrein‑related peptidase 7 (KLK7) and kallikrein‑related peptidase 8 (KLK8) expression. Gene silencing assays confirmed that these peptidases were involved in acidity‑promoted invasion. Acidic conditions also increased the expression of cyclooxygenases (COX), key regulatory enzymes in the catalytic pathway of prostaglandin production. Notably, these enzymes appeared to be involved in the acidity‑mediated expression of KLK7 and KLK8, as revealed using COX inhibitors. Therefore, it was indicated that tumor invasion enhancement by extracellular acidity is regulated at least in part through the induction of the COX/KLK7 and KLK8 axis in gastric cancer cells.
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Affiliation(s)
- Sung-Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Keun Hong Kee
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Mi Ja Lee
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Ran Hong
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Song Iy Han
- Division of Premedical Science, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
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Lim SC, Kee KH, Lee MJ, Hong R, Han SI. Extracellular acidity‑induced expression of Kallikrein‑related peptidases 7 and 8 is involved in increased invasiveness of gastric cancer cells. Oncol Rep 2020. [PMID: 32323843 DOI: 10.3892/or.2020.7529.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In several cancers, the acidic microenvironment of cancer cells has been implicated in enhanced malignancy and metastasis. In the present study, it was observed that gastric cancer cell lines, SNU601 and AGS, exposed to an acidic medium had increased invasiveness, as assessed using Matrigel‑coated Transwell analysis. The factors regulating such acidity‑mediated enhancement of invasiveness were investigated and it was revealed that a low‑pH environment markedly increased kallikrein‑related peptidase 7 (KLK7) and kallikrein‑related peptidase 8 (KLK8) expression. Gene silencing assays confirmed that these peptidases were involved in acidity‑promoted invasion. Acidic conditions also increased the expression of cyclooxygenases (COX), key regulatory enzymes in the catalytic pathway of prostaglandin production. Notably, these enzymes appeared to be involved in the acidity‑mediated expression of KLK7 and KLK8, as revealed using COX inhibitors. Therefore, it was indicated that tumor invasion enhancement by extracellular acidity is regulated at least in part through the induction of the COX/KLK7 and KLK8 axis in gastric cancer cells.
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Affiliation(s)
- Sung-Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Keun Hong Kee
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Mi Ja Lee
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Ran Hong
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Song Iy Han
- Division of Premedical Science, College of Medicine, Chosun University, Gwangju 61452, Republic of Korea
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10
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Zhang Y, Hu J, Zhou W, Gao H. LncRNA FOXD2-AS1 accelerates the papillary thyroid cancer progression through regulating the miR-485-5p/ KLK7 axis. J Cell Biochem 2019; 120:7952-7961. [PMID: 30456805 DOI: 10.1002/jcb.28072] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 10/22/2018] [Indexed: 01/24/2023]
Abstract
It has been proved that long noncoding RNAs (lncRNAs) are important modulators in the tumorigenesis and progression of various malignant tumors. Recently, lncRNA FOXD2-AS1 has been reported to be an oncogene in several kinds of human cancers. However, the function of FOXD2-AS1 in papillary thyroid cancer (PTC) has not been well investigated. This study aims to explore the biological role and mechanism of FOXD2-AS1 in PTC. At first, the expression of FOXD2-AS1 was examined in PTC tissues and cell lines with quantitative reverse transcription-polymerase chain reaction (qRT-PCR). FOXD2-AS1 was found to observably upregulated in PTC tissues and cell lines. Kaplan-Meier survival analysis revealed that high expression of FOXD2-AS1 was closely correlated with the unfavorable prognosis of patients with PTC. Based on the TCGA data set, KLK7 was overexpressed in PTC tumor samples. Our experimental data further validated the upregulation of KLK7 in PTC tissues and cell lines. Similarly, high level of KLKF was associated with poor prognosis of patients with PTC. The positive expression association between FOXD2-AS1 and KLK7 was analyzed with Pearson correlation coefficient. Loss-of-function assays revealed that knockdown of FOXD2-AS1 or KLK7 greatly inhibited PTC cell proliferation and migration, while induced cell apoptosis. Results of mechanism experiments suggested that FOXD2-AS1 functioned as a competing endogenous RNA (ceRNA) to enhance the expression of KLK7 by sponging miR-485-5p in PTC. Rescue assays were conducted to verify the function of FOXD2-AS1/miR-485-5p/KLK7 axis in PTC progression.
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Affiliation(s)
- Yayuan Zhang
- Department of Thyroid and Breast Surgery, Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, China
| | - Jintao Hu
- Department of Pathology, Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, China
| | - Wenbing Zhou
- Department of Thyroid and Breast Surgery, Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, China
| | - Hengyuan Gao
- Department of Thyroid and Breast Surgery, Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, China
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11
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Dan L, Yonggang L. Molecular characteristics and association analysis with litter size trait for porcine KLK7 gene. Anim Biotechnol 2019; 31:377-381. [PMID: 31006337 DOI: 10.1080/10495398.2019.1604379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Kallikrein-related peptidase 7(KLK7) is a tumor-related gene. In this study, the full-length coding sequence of porcine KLK7 gene was cloned through RT-PCR. Sequence analysis revealed that the pig KLK7 gene encodes a protein of 257 amino acids which has high homology with the KLK7 protein of six species: polar bear (95%), Weddell seal(94%), dog (92%), Pacific walrus (95%), domestic cat (92%), and Amur tiger (91%). This gene is structured in five exons and four introns as revealed by computer-assisted analysis. Phylogenetic analysis showed that the pig KLK7 gene has a closer genetic relationship with the KLK7 gene of a domestic cat. PCR-Alu I-RFLP was established to detect the GU373714:c.390 C > T substitution of porcine KLK7 gene and eight pig breeds displayed obvious genotype and allele frequency differences at this mutation locus. Association of this SNP with litter size trait was assessed in Large White (n = 200) and Landrace (n = 200) pig populations and results demonstrated that this polymorphic locus was significantly associated with the litter size of all parities in Large White and Landrace sows (p < 0.05). Therefore, KLK7 is also an important reproduction related gene.
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Affiliation(s)
- Lu Dan
- Yunnan Key Laboratory of Fertility Regulation and Minority Birth Health, Kunming, China.,National Health and Family Planning Key Laboratory of Preconception Health in Western China, Kunming, China.,Key Laboratory of Animal Nutrition and Feed of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Liu Yonggang
- Key Laboratory of Animal Nutrition and Feed of Yunnan Province, Yunnan Agricultural University, Kunming, China
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12
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Ao ZX, Chen YC, Lu JM, Shen J, Peng LP, Lin X, Peng C, Zeng CP, Wang XF, Zhou R, Chen Z, Xiao HM, Deng HW. Identification of potential functional genes in papillary thyroid cancer by co-expression network analysis. Oncol Lett 2018; 16:4871-4878. [PMID: 30250553 PMCID: PMC6144229 DOI: 10.3892/ol.2018.9306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/12/2018] [Indexed: 12/12/2022] Open
Abstract
Interactions between multiple genes are involved in the development of complex diseases. However, there are few analyses of gene interactions associated with papillary thyroid cancer (PTC). Weighted gene co-expression network analysis (WGCNA) is a novel and powerful method that detects gene interactions according to their co-expression similarities. In the present study, WGCNA was performed in order to identify functional genes associated with PTC using R package. First, differential gene expression analysis was conducted in order to identify the differentially expressed genes (DEGs) between PTC and normal samples. Subsequently, co-expression networks of the DEGs were constructed for the two sample groups, respectively. The two networks were compared in order to identify a poorly preserved module. Concentrating on the significant module, validation analysis was performed to confirm the identified genes and combined functional enrichment analysis was conducted in order to identify more functional associations of these genes with PTC. As a result, 1062 DEGs were identified for network construction. A brown module containing 118 highly related genes was selected as it exhibited the lowest module preservation. After validation analysis, 61 genes in the module were confirmed to be associated with PTC. Following the enrichment analysis, two PTC-related pathways were identified: Wnt signal pathway and transcriptional misregulation in cancer. LRP4, KLK7, PRICKLE1, ETV4 and ETV5 were predicted to be candidate genes regulating the pathogenesis of PTC. These results provide novel insights into the etiology of PTC and the identification of potential functional genes.
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Affiliation(s)
- Zeng-Xin Ao
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Yuan-Cheng Chen
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Jun-Min Lu
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Jie Shen
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Lin-Ping Peng
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Xu Lin
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Cheng Peng
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Chun-Ping Zeng
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Xia-Fang Wang
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Rou Zhou
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Zhi Chen
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China
| | - Hong-Mei Xiao
- School of Basic Medical Sciences, Central South University, Changsha, Hunan 410000, P.R. China
| | - Hong-Wen Deng
- Department of Endocrinology and Metabolism, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510630, P.R. China.,School of Basic Medical Sciences, Central South University, Changsha, Hunan 410000, P.R. China.,Department of Biostatistics and Bioinformatics, Center for Bioinformatics and Genomics, Tulane University, New Orleans, LA 70112, USA
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Zhang H, Cai Y, Zheng L, Zhang Z, Lin X, Jiang N. Long noncoding RNA NEAT1 regulate papillary thyroid cancer progression by modulating miR-129-5p/ KLK7 expression. J Cell Physiol 2018; 233:6638-6648. [PMID: 29319165 DOI: 10.1002/jcp.26425] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 01/05/2018] [Indexed: 12/31/2022]
Abstract
Considering the dilemma in papillary thyroid cancer treatment, this study intended to find solution in molecular respect. By probing into lncRNA-NEAT1/miR-129-5p/KLK7 interaction, this study would provide new targets for future treatment. Microarray analysis and R language package were applied to select possible lncRNA and miRNA. Luciferase reporter assay and RNA pull-down test were employed in the detection of target relationship between lncRNA and miRNA. Clone formation assay, flow cytometry analysis, wound healing assay, and transwell assay were, respectively, used to observe effects of lncRNA NEAT1/miR-129-5p/KLK7 to papillary thyroid cancer cells. Western blot and qRT-PCR were used to validate protein expressions and mRNA expressions in PTC tissues and cells. LncRNA NEAT1 was highly expressed in PTC tissues and cell lines and could deteriorate PTC by promoting proliferation, invasion, and migration accompanied by less apoptosis. Besides, miR-129-5p/lncRNA NEAT1 were found to negatively correlate with each other by direct target relationship and their combination suppressed the progression of PTC. KLK7, a highly expressed downstream protein in PTC tissues, could be directly regulated by miR-129-5p in a negative way. KLK7 accelerated the deterioration of PTC in vitro experiments which could be reversed by sh-lnc RNA NEAT1 and miR-129-5p mimics. In vivo experiments, silence of lncRNA NEAT1 restrain tumor growth in weight and volume. In conclusion, lncRNA NEAT1 suppression could inhibit PTC progression by upregulating miR-129-5p, which suppressed KLK7 expression either in vitro or vivo experiments.
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Affiliation(s)
- Hong Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou, Guangdong, China.,Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yuechang Cai
- Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Li Zheng
- Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhanlei Zhang
- Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiaofeng Lin
- Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ningyi Jiang
- Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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Murafuji H, Sakai H, Goto M, Imajo S, Sugawara H, Muto T. Discovery and structure-activity relationship study of 1,3,6-trisubstituted 1,4-diazepane-7-ones as novel human kallikrein 7 inhibitors. Bioorg Med Chem Lett 2017; 27:5272-5276. [PMID: 29102227 DOI: 10.1016/j.bmcl.2017.10.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/13/2017] [Accepted: 10/14/2017] [Indexed: 10/18/2022]
Abstract
Compound 1, composed of a 1,3,6-trisubstituted 1,4-diazepane-7-one, was discovered as a novel human kallikrein 7 (KLK7, stratum corneum chymotryptic enzyme, SCCE) inhibitor, and its derivatives were synthesized and evaluated. Structure-activity relationship studies of the amidoxime unit and benzoic acid part of this new scaffold led to the identification of 25 and 34, which were more potent than the hit compound, 1. The X-ray co-crystal structure of compound 25 and human KLK7 revealed the characteristic interactions and enabled explanations of the structure-activity relationship.
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Affiliation(s)
- Hidenobu Murafuji
- Asubio Pharma Co., Ltd., 6-4-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan.
| | - Hiroki Sakai
- Asubio Pharma Co., Ltd., 6-4-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Megumi Goto
- Asubio Pharma Co., Ltd., 6-4-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Seiichi Imajo
- Asubio Pharma Co., Ltd., 6-4-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Hajime Sugawara
- Asubio Pharma Co., Ltd., 6-4-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Tsuyoshi Muto
- Asubio Pharma Co., Ltd., 6-4-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan.
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Wang YY, Lin YC, Hung HC, Tien WY, Shieh TY. Polymorphisms in Kallikrein7 and 10 genes and oral cancer risks in Taiwan betel quid chewers and smokers. Oral Dis 2013; 19:824-32. [PMID: 23413953 DOI: 10.1111/odi.12072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 11/02/2012] [Accepted: 01/08/2013] [Indexed: 01/25/2023]
Abstract
OBJECTIVES We investigated the association between mRNA levels, polymorphisms of Kallikrein7 (KLK7) and Kallikrein10 (KLK10), and the development of oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS We recruited 217 OSCC patients and 138 healthy controls. All were men, betel quid chewers, cigarette smokers, and Minnan ethnicity. Genotyping was performed using a TaqMan probe genotyping assay. Gene expression levels were determined using real-time polymerase chain reactions (PCRs) for 20 pairs of cancerous and non-cancerous tissues. RESULTS Kallikrein10 rs3745535G>T polymorphisms were significantly associated with OSCC development [adjusted OR (AOR) = 1.62, 95% CI = 1.02-2.59], but KLK7 polymorphisms were not. The KLK7 rs10581213(wt/ins + ins/ins) genotypes were significantly associated with early-stage cancer (AOR = 0.34, 95% CI = 0.14-0.78), but KLK10 polymorphisms were not. Relative expression analysis indicated that an increase in KLK7 and KLK10 mRNA levels was found in cancerous tissues (2(-ΔΔCT) = 25.23 ± 8.85 and 10.89 ± 4.97, respectively). A significantly higher level of KLK7 was expressed in early-stage cancer with the rs10581213(wt/ins + ins/ins) genotypes, but there was no significant difference in the mRNA levels of KLK7 and KLK10 between early- and advanced-stage cancers. CONCLUSIONS This is the first correlation of OSCC with KLK10 rs3745535G>T polymorphisms. Early-stage OSCC and high KLK7 mRNA levels were correlated with the rs10581213(wt/ins + ins/ins) genotypes. More studies with large sample sizes are needed to verify our findings.
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Affiliation(s)
- Y Y Wang
- School of Dentistry, Kaohsiung Medical University, Kaohsiung, Taiwan
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