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OWAKI K, MURAKAMI M, KATO K, HIRATA A, SAKAI H. Reduction of phosphorylated signal transducer and activator of transcription-5 expression in feline mammary carcinoma. J Vet Med Sci 2024; 86:816-823. [PMID: 38777776 PMCID: PMC11251807 DOI: 10.1292/jvms.23-0470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/02/2024] [Indexed: 05/25/2024] Open
Abstract
Signal transducers and activators of transcription (STATs) are a family of transcription factors involved in various normal physiological cellular processes. Moreover, STATs have been recently identified as novel therapeutic targets for various human tumors. STAT3, STAT5a, and STAT6 have been suggested to be involved in tumorigenesis in human breast cancer. Owing to the similarity between feline mammary carcinomas (FMCs) and human breast cancers, these factors may play an important role in FMCs. However, studies on the expression of STATs in animal tumors are limited. Therefore, in this study, we aimed to characterize the expression of total STAT5 (tSTAT5) and phosphorylated STAT5 (pSTAT5) in FMCs, feline mammary adenomas, non-neoplastic proliferative mammary gland lesions, and normal feline mammary glands using immunohistochemistry. High expression of tSTAT5 was observed in the cytoplasm of all the samples assessed in this study. Moreover, high expression of tSTAT5 was observed in the nucleus; however, its levels varied depending on the lesion. The percentage of pSTAT5-nuclear positive cells varied among normal feline mammary glands (40.1 ± 25.1%), and non-neoplastic lesions, including mammary hyperplasia (43.2 ± 28.6%) and fibroadenomatous changes (18.0 ± 13.6%). Moreover, the percentage of pSTAT5-nuclear-positive cells in feline mammary adenomas was 24.5 ± 19.2%, which was significantly reduced in feline mammary carcinomas (2.4 ± 5.6%), regardless of histopathological subtype. This study suggests that decreased STAT5 activity may be involved in the development and malignant progression of feline mammary carcinomas.
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Affiliation(s)
- Keishi OWAKI
- Laboratory of Veterinary Pathology, Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
| | - Mami MURAKAMI
- Laboratory of Veterinary Clinical Pathology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Kana KATO
- Laboratory of Veterinary Pathology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Akihiro HIRATA
- Laboratory of Veterinary Pathology, Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
- Laboratory of Veterinary Pathology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
- Center for One Medicine Innovative Translational Research (COMIT), Gifu University, Gifu, Japan
| | - Hiroki SAKAI
- Laboratory of Veterinary Pathology, Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
- Laboratory of Veterinary Pathology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
- Center for One Medicine Innovative Translational Research (COMIT), Gifu University, Gifu, Japan
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Alam M, Hasan GM, Eldin SM, Adnan M, Riaz MB, Islam A, Khan I, Hassan MI. Investigating regulated signaling pathways in therapeutic targeting of non-small cell lung carcinoma. Biomed Pharmacother 2023; 161:114452. [PMID: 36878052 DOI: 10.1016/j.biopha.2023.114452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/19/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
Non-small cell lung carcinoma (NSCLC) is the most common malignancy worldwide. The signaling cascades are stimulated via genetic modifications in upstream signaling molecules, which affect apoptotic, proliferative, and differentiation pathways. Dysregulation of these signaling cascades causes cancer-initiating cell proliferation, cancer development, and drug resistance. Numerous efforts in the treatment of NSCLC have been undertaken in the past few decades, enhancing our understanding of the mechanisms of cancer development and moving forward to develop effective therapeutic approaches. Modifications of transcription factors and connected pathways are utilized to develop new treatment options for NSCLC. Developing designed inhibitors targeting specific cellular signaling pathways in tumor progression has been recommended for the therapeutic management of NSCLC. This comprehensive review provided deeper mechanistic insights into the molecular mechanism of action of various signaling molecules and their targeting in the clinical management of NSCLC.
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Affiliation(s)
- Manzar Alam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Gulam Mustafa Hasan
- Department of Biochemistry, College of Medicine, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Sayed M Eldin
- Center of Research, Faculty of Engineering, Future University in Egypt, New Cairo 11835, Egypt
| | - Mohd Adnan
- Department of Biology, College of Science, University of Hail, Hail, Saudi Arabia
| | - Muhammad Bilal Riaz
- Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdnask, Poland; Department of Computer Science and Mathematics, Lebanese American University, Byblos, Lebanon
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ilyas Khan
- Department of Mathematics, College of Science Al-Zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia.
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India.
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Sequeira I, Pires MDA, Leitão J, Henriques J, Viegas C, Requicha J. Feline Oral Squamous Cell Carcinoma: A Critical Review of Etiologic Factors. Vet Sci 2022; 9:vetsci9100558. [PMID: 36288171 PMCID: PMC9609408 DOI: 10.3390/vetsci9100558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/30/2022] [Accepted: 10/02/2022] [Indexed: 11/07/2022] Open
Abstract
Simple Summary Feline oral squamous cell carcinoma (FOSCC) is the most common oral neoplasia in cats. This malignant tumor is locally invasive, has a high mortality rate, and its etiology is not yet known. A critical review about the potential etiologic factors of FOSCC was performed, considering publications between 2000 and 2022. The initial search resulted in 553 publications, with only 26 of these being included in the review. Sixteen studies were related to viral etiology and nine related to environmental factors such as exposure to tobacco smoke, ectoparasitic products, and the presence of oral comorbidities. When evaluated, feline papillomavirus was detected in 16.2% of samples of FOSCC. In the three studies focused on exposure to tobacco smoke, 35.2% (30/85) of cats with FOSCC had a history of this exposure. Among 485 cats with FOSCC, 6.4% had dental and oral pathology. The present study demonstrates that the available evidence on the etiology of FOSCC is still limited, however, there has been increasing interest in this topic. Abstract Feline oral squamous cell carcinoma (FOSCC) is the most common oral neoplasia in cats. This malignant tumor is locally invasive, has a high mortality rate, and its etiology is not yet known. In humans, head and neck squamous cell carcinoma is associated with tobacco smoke, alcohol consumption, and human papillomavirus infection. Herein, a critical review about the potential etiologic factors of FOSCC was performed, considering publications between 2000 and 2022, aiming to synthesize all available scientific evidence regarding this issue. Recommendations of the PRISMA statement and the Cochrane Collaboration were followed and the PubMed database searched by using the MeSH terms MeSH terms “oral”, “mouth”, “lingual”, “labial”, “gingiva”, “carcinoma”, “squamous”, and “feline”. The selection process for eligible studies was based on specific inclusion and exclusion criteria and the quality of the studies assessed. The initial search resulted in 553 publications, with only 26 of these being included in the review. Sixteen studies were related to viral etiology and nine related to environmental factors such as exposure to tobacco smoke, ectoparasitic products, and the presence of oral comorbidities. When evaluated, feline papillomavirus was detected in 16.2% of samples of FOSCC. In the three studies focused on exposure to tobacco smoke, 35.2% (30/85) of cats with FOSCC had a history of this exposure. The consumption of canned food and the use of deworming collars were associated, in only one publication, with a risk of neoplasia increased by 4.7 and 5.3 times, respectively. Among 485 cats with FOSCC, 6.4% had dental and oral pathology (i.e., periodontal disease or feline chronic gingivostomatitis). The present study demonstrates that the available evidence on the etiology of FOSCC is still limited, however, there has been an increasing interest on this topic. To better understand the role of the possible etiological factors of this aggressive disease, and model for its human counterpart, large, prospective multi-institutional studies are needed.
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Affiliation(s)
- Inês Sequeira
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Maria dos Anjos Pires
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 5000-801 Vila Real, Portugal
| | - José Leitão
- Department of Sport, Exercise and Health Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Joaquim Henriques
- Oncology Service, Centre Hospitalière Vétérinaire Frégis, 94110 Arcueil, France
| | - Carlos Viegas
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 5000-801 Vila Real, Portugal
| | - João Requicha
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 5000-801 Vila Real, Portugal
- Correspondence: ; Tel.: +351-967-793-272
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Shih CH, Chang YC, Lai YC, Chiou HY. Investigating the role of signal transducer and activator of transcription 3 in feline injection site sarcoma. BMC Vet Res 2022; 18:276. [PMID: 35836213 PMCID: PMC9281114 DOI: 10.1186/s12917-022-03352-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 06/17/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Feline injection-site sarcomas (FISSs) are malignant mesenchymal tumors of different histotypes. The pathogenesis of FISS has been correlated with chronic inflammation, resulting in neoplastic transformation. Activation of the Janus kinase-signal transducer and activator of transcription 3 (STAT3) have been demonstrated to play a critical role in tumor development by regulating signaling pathways involved in cell proliferation, survival, metastasis, and angiogenesis in human medicine. To characterize the role of STAT3 in FISS, we first detected STAT3 and phosphorylated STAT3 in formalin-fixed and paraffin-embedded (FFPE) FISS tissues using immunohistochemical staining. RESULTS STAT3 was detected in 88.9% (40/45) of FISS cases, and phosphorylated STAT3 was detected in 53.3% (24/45) of cases. However, the expression levels of both forms of STAT3 were not correlated with tumor grade. To study the role of STAT3 in tumor survival, two primary cells derived from FISSs of two cats exhibiting consistent immunophenotypes with their parental FFPE tissues were established. A dose-dependent inhibitory effect on cell proliferation was observed in both primary FISS cells treated with the STAT3 inhibitor, 5-hydroxy-9,10-dioxo-9,10-dihydroanthracene-1-sulfonamide. CONCLUSIONS The STAT 3 may play an important role in the tumorigenesis of FISS and be a potential molecular therapeutic target for FISS.
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Affiliation(s)
- Cheng-Hsin Shih
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, 10617, Taipei, Taiwan
| | - Yen-Chen Chang
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, 10617, Taipei, Taiwan
| | - Yun-Chiang Lai
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, 10617, Taipei, Taiwan
| | - Hue-Ying Chiou
- Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, 402, Taichung, Taiwan.
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The novel histone deacetylase inhibitor pracinostat suppresses the malignant phenotype in human glioma. Mol Biol Rep 2022; 49:7507-7519. [PMID: 35622308 DOI: 10.1007/s11033-022-07559-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 05/04/2022] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Glioma is the most common malignant brain tumor in adults. The effects of conventional treatment regimens are still limited to prolonging the survival of patients. Histone deacetylases (HDACs) are potential targets for tumor treatment. Pracinostat is a new type of HDAC inhibitor (HDACi) that has a significant antitumor effect on a variety of tumors. Thus, we aim to investigate the role of pracinostat in human glioma and explored its underlying mechanism. METHODS Cell viability, proliferation and apoptosis of human glioma cell lines were measured by Cell Counting kit 8 and flow cytometry. Pathway verification and protein interaction were determined by quantitative real-time polymerase chain reaction, Western blotting and immunofluorescence staining. Transwell technology was used to assess the migration and invasion of cells. Clinical significance of TIMP3, MMP9 and MMP2 in glioma was analyzed through The Cancer Genome Atlas (TCGA) database and the Genotype-Tissue Expression (GTEx) database. RESULTS Functionally, pracinostat not only inhibited proliferation and induced apoptosis but also inhibited migration and invasion in human glioma cell lines. Mechanistically, pracinostat increased the expression of TIMP3 and decreased the expression of MMP2, MMP9 and VEGF in human glioma cells in vitro and in vivo. In addition, pracinostat inhibited both the PI3K/Akt signaling pathway and the STAT3 pathway. CONCLUSIONS Our results strongly support the potential clinical use of pracinostat as a novel therapy for human glioma in the near future.
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Ackerman LH, de Mello Souza CH, Cortés-Hinojosa G, Salute ME, Stephen AA, Anthony E, Shiomitsu K, Milner RJ. Identification of the interleukin-8 (CXCL-8) pathway in feline oral squamous cell carcinoma - A pilot study. CANADIAN JOURNAL OF VETERINARY RESEARCH = REVUE CANADIENNE DE RECHERCHE VETERINAIRE 2022; 86:13-19. [PMID: 34975217 PMCID: PMC8697325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/22/2021] [Indexed: 06/14/2023]
Abstract
The purpose of this pilot study was to detect the presence of interleukin-8 (IL-8) and the potential downstream effects of IL-8 receptor activation in 2 previously characterized feline oral squamous cell carcinoma cell lines (SCCF1 and SCCF2). Interleukin-8 messenger RNA (mRNA) was initially detected by quantitative reverse transcription polymerase chain reaction (qRT-PCR). A previously validated and commercially available enzyme-linked immunosorbent assay (ELISA) test was used to measure IL-8 production in the supernatant of the 2 cell lines. Western blot was used to detect phosphorylation of proteins (AKT, ERK1/2, JAK2, STAT3, and Src), known to be downstream of interleukin-8 receptor activation. The IL-8 receptor-specific antagonists, Reparixin and SCH527123, were used to identify effects on phosphorylation of these proteins. Interleukin-8 mRNA and protein were detected in both SCCF1 and SCCF2 by RT-PCR and ELISA, respectively. Phosphorylation of ERK1/2, STAT3, and Src was detected in both cell lines. Inhibition of the IL-8 receptor led to a decrease in phosphorylation of Src, but not ERK1/2 or STAT3. In conclusion, feline squamous cell carcinoma cell lines can produce IL-8. Phosphorylation of Src seems, at least in part, a consequence of IL-8 receptor activation. The phosphorylation of ERK1/2 and STAT3, although present, seems independent of IL-8 receptor activation. Due to its potential effects on the tumor microenvironment, in addition to its autocrine effects on Src phosphorylation, the inhibition of the IL-8 receptor may become a beneficial therapeutic tool. Evaluation of the presence of both IL-8 and Src in many cases should elucidate their importance.
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Affiliation(s)
- Leah H Ackerman
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
| | - Carlos H de Mello Souza
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
| | - Galaxia Cortés-Hinojosa
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
| | - Marc E Salute
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
| | - Alexa A Stephen
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
| | - Elizabeth Anthony
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
| | - Keijiro Shiomitsu
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
| | - Rowan J Milner
- University of Florida Comparative Oncology Laboratory, University of Florida Small Animal Clinical Sciences, 2015 SW 16th Avenue, Gainesville, Florida 32608, USA
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Giuliano A. Companion Animal Model in Translational Oncology; Feline Oral Squamous Cell Carcinoma and Canine Oral Melanoma. BIOLOGY 2021; 11:biology11010054. [PMID: 35053051 PMCID: PMC8773126 DOI: 10.3390/biology11010054] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 12/29/2021] [Accepted: 12/30/2021] [Indexed: 12/16/2022]
Abstract
Simple Summary Laboratory rodents are the most common animal models used in preclinical cancer research. Companion animals with naturally occurring cancers are an under-utilized natural model for the development of new anti-cancer drugs. Dogs and cats develop several types of cancers that resemble those arising in humans with similar clinical and histopathological features and often with similar molecular and genetic backgrounds. Exposure to environmental carcinogens, including air, food and water are also common between people and their pets. Dogs and cats are a unique model that could be integrated between the preclinical laboratory animal model and human clinical trials. Abstract Companion animals with naturally occurring cancers can provide an advantageous model for cancer research and in particular anticancer drug development. Compared to commonly utilized mouse models, companion animals, specifically dogs and cats, share a closer phylogenetical distance, body size, and genome organization. Most importantly, pets develop spontaneous, rather than artificially induced, cancers. The incidence of cancer in people and companion animals is quite similar and cancer is the leading cause of death in dogs over 10 years of age. Many cancer types in dogs and cats have similar pathological, molecular, and clinical features to their human counterparts. Drug toxicity and response to anti-cancer treatment in dogs and cats are also similar to those in people. Companion animals share their lives with their owners, including the environmental and socioeconomic cancer-risk factors. In contrast to humans, pets have a shorter life span and cancer progression is often more rapid. Clinical trials in companion animals are cheaper and less time consuming compared to human trials. Dogs and cats with naturally occurring cancers are an ideal and unique model for human cancer research. Model selection for the specific type of cancer is of pivotal importance. Although companion animal models for translational research have been reviewed previously, this review will try to summarize the most important advantages and disadvantages of this model. Feline oral squamous cell carcinoma as a model for head and neck squamous cell carcinoma and canine oral melanoma as a model for mucosal melanoma and immunotherapy in people will be discussed as examples.
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Affiliation(s)
- Antonio Giuliano
- Department of Veterinary Clinical Science, Jockey Club College of Veterinary Medicine, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
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Alam M, Mishra R. Bcl-xL expression and regulation in the progression, recurrence, and cisplatin resistance of oral cancer. Life Sci 2021; 280:119705. [PMID: 34111459 DOI: 10.1016/j.lfs.2021.119705] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 05/25/2021] [Accepted: 06/03/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bcl-xL is an anti-apoptotic molecule, but its role in the progression and recurrent/ drug-resistant oral squamous cell carcinoma (OSCC) is poorly understood. MATERIALS AND METHODS A total of one hundred twenty-five human OSCC tissue specimens including twenty-nine adjacent normals (AN), sixty-nine primary tumors (PT), twenty-seven recurrent chemoradiation resistance (RCRT) samples, and oral tongue SCC derived cisplatin-resistant (CisR SCC-4/-9) cells were used, for this study. Protein/mRNA expression levels of Bcl-xL and its regulation by ERK1/2, Stat-3, p53, NFκB, AP-1 (components: c-Jun, c-Fos, and Fra-2) molecules, and cell viability were measured by immunohistochemistry, Western blot, RT-PCR, and MTT analysis. Further, the individual and synergistic effects of Fra-2 (siRNA) and nimbolide were tested in CisR SCC-4/-9 cells. RESULTS Progressive increase of Bcl-xL expression and its transcriptional-deregulation was observed with OSCC progression and resistance. Among all the possible upstream regulators of Bcl-xL, such as ERK1/2, Stat-3, p53, AP-1, and NFκB, the TF AP-1 (r = 0.644, p = 0.0001) showed maximum association with Bcl-xL mRNA expression. Though differential expression of AP-1 components were detected in OSCC specimens, with more striking positive-correction of c-Jun (r = 0.381, p = 0.049), c-Fos (r = 0.139, p = 0.488, ns) and Fra-2 (r = 0.664, p = 0.0001) with Bcl-xL expression observed stronger in RCRT tumor subgroup. Further, knockdown of Fra-2 and the application of plant-based phytochemical nimbolide decreased Bcl-xL expression and induced apoptosis in CisR SCC-4/-9 cells. CONCLUSION Collectively, we have demonstrated the role of Bcl-xL and AP-1 (Fra-2), causing OSCC progression and cisplatin resistance. Targeting Bcl-xL upstream pathway along with the application of nimbolide might be beneficial in eliminating drug-resistant OSCC.
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Affiliation(s)
- Manzar Alam
- Department of Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe, Ranchi 835205, Jharkhand, India.
| | - Rajakishore Mishra
- Department of Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe, Ranchi 835205, Jharkhand, India.
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Nasry WHS, Martin CK. Intersecting Mechanisms of Hypoxia and Prostaglandin E2-Mediated Inflammation in the Comparative Biology of Oral Squamous Cell Carcinoma. Front Oncol 2021; 11:539361. [PMID: 34094895 PMCID: PMC8175905 DOI: 10.3389/fonc.2021.539361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 04/22/2021] [Indexed: 12/12/2022] Open
Abstract
The importance of inflammation in the pathogenesis of cancer was first proposed by Rudolph Virchow over 150 years ago, and our understanding of its significance has grown over decades of biomedical research. The arachidonic acid pathway of inflammation, including cyclooxygenase (COX) enzymes, PGE2 synthase enzymes, prostaglandin E2 (PGE2) and PGE2 receptors has been extensively studied and has been associated with different diseases and different types of cancers, including oral squamous cell carcinoma (OSCC). In addition to inflammation in the tumour microenvironment, low oxygen levels (hypoxia) within tumours have also been shown to contribute to tumour progression. Understandably, most of our OSCC knowledge comes from study of this aggressive cancer in human patients and in experimental rodent models. However, domestic animals develop OSCC spontaneously and this is an important, and difficult to treat, form of cancer in veterinary medicine. The primary goal of this review article is to explore the available evidence regarding interaction between hypoxia and the arachidonic acid pathway of inflammation during malignant behaviour of OSCC. Overlapping mechanisms in hypoxia and inflammation can contribute to tumour growth, angiogenesis, and, importantly, resistance to therapy. The benefits and controversies of anti-inflammatory and anti-angiogenic therapies for human and animal OSCC patients will be discussed, including conventional pharmaceutical agents as well as natural products.
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Affiliation(s)
- Walaa Hamed Shaker Nasry
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada
| | - Chelsea K Martin
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada
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Doukas PG, Vageli DP, Sasaki CT, Judson BL. Pepsin Promotes Activation of Epidermal Growth Factor Receptor and Downstream Oncogenic Pathways, at Slightly Acidic and Neutral pH, in Exposed Hypopharyngeal Cells. Int J Mol Sci 2021; 22:ijms22084275. [PMID: 33924087 PMCID: PMC8074291 DOI: 10.3390/ijms22084275] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/16/2021] [Accepted: 04/17/2021] [Indexed: 02/07/2023] Open
Abstract
Pepsin refluxate is considered a risk factor for laryngopharyngeal carcinogenesis. Non-acidic pepsin was previously linked to an inflammatory and tumorigenic effect on laryngopharyngeal cells in vitro. Yet there is no clear evidence of the pepsin-effect on a specific oncogenic pathway and the importance of pH in this process. We hypothesized that less acidic pepsin triggers the activation of a specific oncogenic factor and related-signalling pathway. To explore the pepsin-effect in vitro, we performed intermittent exposure of 15 min, once per day, for a 5-day period, of human hypopharyngeal primary cells (HCs) to pepsin (1 mg/mL), at a weakly acidic pH of 5.0, a slightly acidic pH of 6.0, and a neutral pH of 7.0. We have documented that the extracellular environment at pH 6.0, and particularly pH 7.0, vs. pH 5.0, promotes the pepsin-effect on HCs, causing increased internalized pepsin and cell viability, a pronounced activation of EGFR accompanied by NF-κB and STAT3 activation, and a significant upregulation of EGFR, AKT1, mTOR, IL1β, TNF-α, RELA(p65), BCL-2, IL6 and STAT3. We herein provide new evidence of the pepsin-effect on oncogenic EGFR activation and its related-signaling pathway at neutral and slightly acidic pH in HCs, opening a window to further explore the prevention and therapeutic approach of laryngopharyngeal reflux disease.
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Altamura G, Degli Uberti B, Galiero G, De Luca G, Power K, Licenziato L, Maiolino P, Borzacchiello G. The Small Molecule BIBR1532 Exerts Potential Anti-cancer Activities in Preclinical Models of Feline Oral Squamous Cell Carcinoma Through Inhibition of Telomerase Activity and Down-Regulation of TERT. Front Vet Sci 2021; 7:620776. [PMID: 33553285 PMCID: PMC7855307 DOI: 10.3389/fvets.2020.620776] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/07/2020] [Indexed: 11/26/2022] Open
Abstract
Expression of telomerase reverse transcriptase (TERT) and telomerase activity (TA) is a main feature of cancer, contributing to cell immortalization by causing telomeres dysfunction. BIBR1532 is a potent telomerase inhibitor that showed potential anti-tumor activities in several types of cancer, by triggering replicative senescence and apoptosis. In a previous work, we detected, for the first time, TERT expression and TA in preclinical models of feline oral squamous cell carcinoma (FOSCC); therefore, we aimed at extending our investigation by testing the effects of treatment with BIBR1532, in order to explore the role of telomerase in this tumor and foreshadow the possibility of it being considered as a future therapeutic target. In the present study, treatment of FOSCC cell lines SCCF1, SCCF2, and SCCF3 with BIBR1532 resulted in successful inhibition of TA, with subsequent cell growth stoppage and decrease in cell viability. Molecular data showed that up-regulation of cell cycle inhibitor p21, unbalancing of Bax/Bcl-2 ratio, and down-regulation of survival gene Survivin were mostly involved in the observed cellular events. Moreover, BIBR1532 diminished the expression of TERT and its transcriptional activator cMyc, resulting in the down-regulation of epidermal growth factor receptor (EGFR), phospho-ERK/ERK ratio, and matrix metalloproteinases (MMPs)-1/-2 and−9, likely as a consequence of an impairment of TERT extra-telomeric functions. Taken together, our data suggest that BIBR1532 exerts multiple anti-cancer activities in FOSCC by inhibiting telomerase pathway and interfering with signaling routes involved in cell proliferation, cell survival, and invasion, paving the way for future translational studies aimed at evaluating its possible employment in the treatment of this severe tumor of cats.
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Affiliation(s)
- Gennaro Altamura
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | | | - Giorgio Galiero
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Giovanna De Luca
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Karen Power
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - Luca Licenziato
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - Paola Maiolino
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - Giuseppe Borzacchiello
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
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12
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Kieslinger M, Swoboda A, Kramer N, Pratscher B, Wolfesberger B, Burgener IA. Companion Animals as Models for Inhibition of STAT3 and STAT5. Cancers (Basel) 2019; 11:cancers11122035. [PMID: 31861073 PMCID: PMC6966487 DOI: 10.3390/cancers11122035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/28/2022] Open
Abstract
The use of transgenic mouse models has revolutionized the study of many human diseases. However, murine models are limited in their representation of spontaneously arising tumors and often lack key clinical signs and pathological changes. Thus, a closer representation of complex human diseases is of high therapeutic relevance. Given the high failure rate of drugs at the clinical trial phase (i.e., around 90%), there is a critical need for additional clinically relevant animal models. Companion animals like cats and dogs display chronic inflammatory or neoplastic diseases that closely resemble the human counterpart. Cat and dog patients can also be treated with clinically approved inhibitors or, if ethics and drug safety studies allow, pilot studies can be conducted using, e.g., inhibitors of the evolutionary conserved JAK-STAT pathway. The incidence by which different types of cancers occur in companion animals as well as mechanisms of disease are unique between humans and companion animals, where one can learn from each other. Taking advantage of this situation, existing inhibitors of known oncogenic STAT3/5 or JAK kinase signaling pathways can be studied in the context of rare human diseases, benefitting both, the development of drugs for human use and their application in veterinary medicine.
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13
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Cletzer E, Klahn S, Dervisis N, LeRoith T. Identification of the JAK-STAT pathway in canine splenic hemangiosarcoma, thyroid carcinoma, mast cell tumor, and anal sac adenocarcinoma. Vet Immunol Immunopathol 2019; 220:109996. [PMID: 31958674 DOI: 10.1016/j.vetimm.2019.109996] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 12/04/2019] [Accepted: 12/11/2019] [Indexed: 12/18/2022]
Abstract
Dysregulation of the Janus Kinase (JAK) - Signal Transducer and Activator of Transcription (STAT) cellular signaling pathway has been associated with the development and progression of multiple human cancers. STAT3 has been reported to be present and constitutively active in a number of veterinary cancers, and few studies have reported mutations or activation of JAK1 or JAK2. Archived tissue samples from 54 client-owned dogs with histologically-diagnosed HSA, MCT, TC, or AGASACA were evaluated by immunohistochemical scoring of JAK1, JAK2, STAT3, and the phosphorylated counterparts pJAK1, pJAK2, and pSTAT3. IHC scoring was retrospectively analyzed with retrospectively-collected clinical parameters, including patient characteristics, metastasis, and survival. JAK1, pJAK1, JAK2, pJAK2, STAT3, and pSTAT3 were present in all tumor types evaluated. Significant correlations between JAK 1/2 or STAT3 and activated or downstream components were identified in all tumor types. Clinically, pSTAT3 was correlated with development of metastasis in dogs with MCT, while increased JAK1 expression or activation may impact survival in dogs with MCT or HSA. These findings provide a foundation to further investigate the JAK-STAT pathway in canine malignancies for additional therapeutic options.
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Affiliation(s)
- Erin Cletzer
- Department of Small Animal Clinical Sciences, Virginia Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Dr, Blacksburg, VA, 24061, USA
| | - Shawna Klahn
- Department of Small Animal Clinical Sciences, Virginia Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Dr, Blacksburg, VA, 24061, USA.
| | - Nikolaos Dervisis
- Department of Small Animal Clinical Sciences, Virginia Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Dr, Blacksburg, VA, 24061, USA
| | - Tanya LeRoith
- Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, 205 Duck Pond Dr, Blacksburg, VA, 24061, USA
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Harris K, Gelberg HB, Kiupel M, Helfand SC. Immunohistochemical Features of Epithelial-Mesenchymal Transition in Feline Oral Squamous Cell Carcinoma. Vet Pathol 2019; 56:826-839. [PMID: 31331247 DOI: 10.1177/0300985819859873] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Feline oral squamous cell carcinoma (FOSCC) is an aggressive malignancy with invasive and metastatic behavior. It is poorly responsive to chemotherapy and radiation. Neoplastic epithelial-mesenchymal transition (EMT) portends highly malignant behavior and enhances resistance to therapy. In transitioning to a more malignant phenotype, carcinoma stem cells undergo transformation mediated by expression of proteins, endowing them with mesenchymal properties advantageous to cell survival. The goal of the current study was to identify proteins associated with EMT in FOSCC. This study documents protein expression patterns in 10 FOSCC biopsies and 3 FOSCC cell lines (SCCF1, SCCF2, SCCF3), compatible with an EMT phenotype. As markers of EMT, P-cadherin, N-cadherin, vimentin, nuclear transcription factors Twist and Snail, hypoxia inducible factor 1α (HIF-1α), programmed death ligand 1, and vascular endothelial growth factor D, as well as E-cadherin, were examined using immunohistochemistry, Western blot, and enzyme-linked immunosorbent assay. P-cadherin, Twist, HIF-1α, and programmed death ligand 1 were commonly expressed in biopsies and cell lines. N-cadherin, classically associated with EMT, was not highly expressed, and E-cadherin was coexpressed along with proteins characteristic of EMT in all specimens. Production of vascular endothelial growth factor A by cell lines, a process regulated by HIF-1α expression, was suppressed by the small-molecule inhibitor dasatinib. These data are consistent with EMT in FOSCC and shed light on cellular changes that could contribute to the aggressive behavior of FOSCC.
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Affiliation(s)
- Krystal Harris
- College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Howard B Gelberg
- College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Matti Kiupel
- College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Stuart C Helfand
- College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
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15
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CD147 and Cyclooxygenase Expression in Feline Oral Squamous Cell Carcinoma. Vet Sci 2018; 5:vetsci5030072. [PMID: 30104530 PMCID: PMC6163611 DOI: 10.3390/vetsci5030072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/02/2018] [Accepted: 08/09/2018] [Indexed: 12/13/2022] Open
Abstract
Feline oral squamous cell carcinoma (OSCC) is a highly invasive form of cancer in cats. In human OSCC, cluster of differentiation 147 (CD147) contributes to inflammation and tumor invasiveness. CD147 is a potential therapeutic target, but the expression of CD147 in feline OSCC has not been examined. Immunohistochemistry was used to determine if cyclooxygenase 2 (COX-2) and CD147 expression in feline OSCC biopsies was coordinated. Tumor cells were more likely to express COX-2 (22/43 cases or 51%) compared to stroma (8/43 or 19%) and adjacent oral epithelium (9/31 cases or 29%) (p < 0.05). CD147 was also more likely to occur in tumor cells compared to stroma and adjacent mucosa, with 21/43 (49%) of cases having >50% tumor cells with mild or moderate CD147 expression, compared to 9/28 (32%) in adjacent epithelium and only 5/43 (12%) in adjacent stroma (p < 0.05). In feline OSCC cell lines (SCCF1, SCCF2, and SCCF3), CD147 gene expression was more consistently expressed compared to COX-2, which was 60-fold higher in SCCF2 cells compared to SCCF1 cells (p < 0.05). CD147 expression did not correlate with COX-2 expression and prostaglandin E2 (PGE2) secretion, indicating that they may be independently regulated. CD147 potentially represents a novel therapeutic target for the treatment of feline OSCC and further study of CD147 is warranted.
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Yu HJ, Ahn CH, Yang IH, Won DH, Jin B, Cho NP, Hong SD, Shin JA, Cho SD. Apoptosis induced by methanol extract of Potentilla discolor in human mucoepidermoid carcinoma cells through STAT3/PUMA signaling axis. Mol Med Rep 2018; 17:5258-5264. [PMID: 29363716 PMCID: PMC5865991 DOI: 10.3892/mmr.2018.8468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 01/16/2018] [Indexed: 11/23/2022] Open
Abstract
Potentilla discolor has been used in traditional Chinese medicine for the treatment of hyperglycemia. However, the potential role of Potentilla discolor against cancer and its mode of action remain to be fully elucidated. The present study explored the apoptotic effect of methanol extract of Potentilla discolor (MEPD) in human mucoepidermoid carcinoma (MEC) cell lines of salivary glands. MEPD markedly suppressed the growth and induced apoptotic cell death in MC3 and YD15 cells. MEPD treatment significantly upregulated the expression of PUMA and reduced STAT3 phosphorylation. Overexpression of STAT3 partially recovered the growth of MEC cells inhibited by MEPD. In addition, dephosphorylation of STAT3 by cryptotanshinone (a potent STAT3 inhibitor) was sufficient to inhibit the growth of MEC cells and induce apoptosis via affecting PUMA protein. These results suggest that MEPD has a potential anticancer property via the STAT3/PUMA signaling axis in human MEC cells of salivary gland.
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Affiliation(s)
- Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Dong-Hoon Won
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Bohwan Jin
- Laboratory Animal Center, CHA University, CHA Biocomplex, Sampyeong-Dong, Seongnam, Gyeonggi 13488, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
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17
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Weng JR, Bai LY, Ko HH, Tsai YT. Cyclocommunol induces apoptosis in human oral squamous cell carcinoma partially through a Mcl-1-dependent mechanism. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 39:25-32. [PMID: 29433680 DOI: 10.1016/j.phymed.2017.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 11/01/2017] [Accepted: 12/04/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Crude extract of breadfruit has been reported to have antitumor activity against various cancer cell lines with unknown mechanism. PURPOSE This study aims to investigate the proapoptotic effect of cyclocommunol (CYC), a prenylflavonoid from breadfruit, in two oral squamous cell carcinoma (OSCC) cell lines, SCC2095 and Ca922. METHODS The antiproliferative effects of CYC were assessed by MTT assays and PI/annexin V analysis. SCC2095 cells were transiently transfected with Mcl-1 plasmid in overexpression experiment. Other methods used to investigate the mechanism of CYC included Western blotting, acridine orange staining and confocal microscopic visualization. RESULTS Our results showed that CYC suppressed the viability of SCC2095 and Ca922 with IC50 values at 48 h of 4.2 and 5.0 µM, respectively. This decrease in viability occurred in a caspase-dependent apoptotic manner. In addition, CYC down-regulated the phosphorylation/expression of Akt/mTOR and Mcl-1, accompanied by reactive oxygen species generation, and autophagy induction. Notably, overexpression of Mcl-1 using Mcl-1-tag-myc partially rescued CYC-mediated caspase-3 activation, PARP cleavage, and cytotoxicity. In summary, our study demonstrated the proapoptotic activity of CYC on OSCC, partially through down-regulation of Mcl-1. CONCLUSION CYC from breadfruit has translational value as a proapoptotic agent for OSCC.
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Affiliation(s)
- Jing-Ru Weng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
| | - Li-Yuan Bai
- College of Medicine, China Medical University, Taichung 40402, Taiwan; Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung 40447, Taiwan
| | - Horng-Huey Ko
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80715, Taiwan
| | - Yi-Tung Tsai
- Department of Biological Science and Technology, China Medical University, Taichung 40402, Taiwan
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18
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Walz JZ, Saha J, Arora A, Khammanivong A, O'Sullivan MG, Dickerson EB. Fatty acid synthase as a potential therapeutic target in feline oral squamous cell carcinoma. Vet Comp Oncol 2017; 16:E99-E108. [PMID: 28871635 DOI: 10.1111/vco.12341] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 12/19/2022]
Abstract
Oral squamous cell carcinoma (OSCC) is an aggressive and treatment-resistant malignancy in both feline and human patients. Recent work has demonstrated aberrant expression of fatty acid synthase (FASN) and an increased capacity for lipogenesis in human OSCC and other cancers. In human OSCC, inhibition of FASN decreased cell viability and growth in vitro, and diminished tumour growth and metastasis in murine preclinical models. This study aimed to characterize FASN as a therapeutic target in feline OSCC. Immunohistochemistry revealed high FASN expression in primary feline OSCC tumours, and FASN expression was detected in OSCC cell lines (3 feline and 3 human) by immunoblotting and quantitative real-time-polymerase chain reaction (qRT-PCR). Orlistat, a FASN inhibitor, substantially reduced cell viability in both feline and human OSCC lines, although feline cell lines consistently displayed higher sensitivity to the drug. FASN mRNA expression among cell lines mirrored sensitivity to orlistat, with feline cell lines expressing higher levels of FASN. Consistent with this observation, diminished sensitivity to orlistat treatment and decreased FASN mRNA expression were observed in feline OSCC cells following incubation under hypoxic conditions. Treatment with orlistat did not potentiate sensitivity to carboplatin in the cell lines investigated; instead, combinations of the 2 drugs resulted in additive to antagonistic effects. Our results suggest that FASN inhibition is a viable therapeutic target for feline OSCC. Furthermore, cats may serve as a spontaneous large animal model for human oral cancer, although differences in the regulation of lipogenesis between these 2 species require further investigation.
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Affiliation(s)
- J Z Walz
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
| | - J Saha
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
| | - A Arora
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
| | - A Khammanivong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
| | - M G O'Sullivan
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
| | - E B Dickerson
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
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19
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Two different protein expression profiles of oral squamous cell carcinoma analyzed by immunoprecipitation high-performance liquid chromatography. World J Surg Oncol 2017; 15:151. [PMID: 28789700 PMCID: PMC5549376 DOI: 10.1186/s12957-017-1213-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/22/2017] [Indexed: 11/27/2022] Open
Abstract
Background Oral squamous cell carcinoma (OSCC) is one of the most dangerous cancers in the body, producing serious complications with individual behaviors. Many different pathogenetic factors are involved in the carcinogenesis of OSCC. Cancer cells derived from oral keratinocytes can produce different carcinogenic signaling pathways through differences in protein expression, but their protein expression profiles cannot be easily explored with ordinary detection methods. Methods The present study compared the protein expression profiles between two different types of OSCCs, which were analyzed through immunoprecipitation high-performance liquid chromatography (IP-HPLC). Results Two types of squamous cell carcinoma (SCC) occurred in a mandibular (SCC-1) and maxillary gingiva (SCC-2), but their clinical features and progression were quite different from each other. SCC-1 showed a large gingival ulceration with severe halitosis and extensive bony destruction, while SCC-2 showed a relatively small papillary gingival swelling but rapidly grew to form a large submucosal mass, followed by early cervical lymph node metastasis. In the histological observation, SCC-1 was relatively well differentiated with a severe inflammatory reaction, while SCC-2 showed severely infiltrative growth of each cancer islets accompanied with a mild inflammatory reaction. IP-HPLC analysis revealed contrary protein expression profiles analyzed by 72 different oncogenic proteins. SCC-1 showed more cellular apoptosis and invasive growth than SCC-2 through increased expression of caspases, MMPs, p53 signaling, FAS signaling, TGF-β1 signaling, and angiogenesis factors, while SCC-2 showed more cellular growth and survival than SCC-1 through the increased expression of proliferating factors, RAS signaling, eIF5A signaling, WNT signaling, and survivin. Conclusions The increased trends of cellular apoptosis and invasiveness in the protein expression profiles of SCC-1 were implicative of its extensive gingival ulceration and bony destruction, while the increased trends of cellular proliferation and survival in the protein profile of SCC-2 were implicative of its rapid growing tumor mass and early lymph node metastasis. These analyses of the essential oncogenic protein expression profiles in OSCC provide important information for genetic counseling or customized gene therapy in cancer treatment. Therefore, protein expression profile analysis through IP-HPLC is helpful not only for the molecular genetic diagnosis of cancer but also in identifying target molecules for customized gene therapy in near future.
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SQUAMOUS CELL CARCINOMA IN TWO SNOW LEOPARDS (UNCIA UNCIA) WITH UNUSUAL AURICULAR PRESENTATION. J Zoo Wildl Med 2017; 48:578-580. [PMID: 28749302 DOI: 10.1638/2016-0099r1.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Squamous cell carcinoma (SCC) is well documented in snow leopards ( Uncia uncia ) and most common locations are oral, facial, or pedal. These two cases illustrate an unusual auricular presentation, which is more often reported in white domestic cats. The animals were aged and presented clinical signs of otitis such as head shaking and ear scratching. Clinical examinations showed auricular canal masses with chronic purulent otitis. In both cases, clinical deterioration led to euthanasia and histology of the ear canal was consistent with SCC and showed numerous vascular emboli. These cases illustrate an unreported aggressive localization for SCC in snow leopards, which should be included in the differential diagnosis of otitis in this species. Auricular SCC may be underdiagnosed as the ear canal is infrequently sampled for histopathology. This auricular localization should be considered when metastases are found upon necropsy without internal primary tumor.
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21
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Ambili R, Janam P, Saneesh Babu PS, Prasad M, Vinod D, Anil Kumar PR, Kumary TV, Asha Nair S. Differential expression of transcription factors NF-κB and STAT3 in periodontal ligament fibroblasts and gingiva of healthy and diseased individuals. Arch Oral Biol 2017; 82:19-26. [PMID: 28578028 DOI: 10.1016/j.archoralbio.2017.05.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Pathogens and host mediators can activate transcription factors in periodontal cells to bring about gene level alterations, thereby accentuating the periodontal disease process. Nuclear factor-kappa B (NF-κB) and signal transducers and activators of transcription 3 (STAT3) are two pivotal transcription factors implicated in chronic inflammatory diseases. But their importance in periodontal pathogenesis has not been investigated in detail. The aim of the present study was to evaluate the expression of activated transcription factors and their target genes in healthy and diseased periodontium. DESIGN Primary culture of periodontal ligament fibroblasts (PDLF) were established from healthy and diseased periodontium using explant culture methods. NF-κB and STAT3 activation in these cells by Porphyromonas gingivalis LPS (lipopolysaccharide) was demonstrated using confocal microscopy and mRNA expression of target genes were evaluated by quantitative real time PCR. NF-κB and STAT3 expression in diseased and healthy gingival tissues were analyzed using immunohistochemistry. RESULTS A basal upregulation of transcription factors and their target genes were noted in diseased PDLF compared to healthy ones. LPS challenge induced differential expression of NF-κB and STAT3 and their target genes in diseased PDLF compared to healthy ones. Immunohistochemical analysis revealed significant activation of transcription factors in diseased gingival tissues. CONCLUSION The findings of the present study reveal the role of transcription factors NF-κB and STAT3 in periodontal pathogenesis and disease susceptibility of fibroblast subpopulations in periodontal disease could be mediated through activation of NF-κB and STAT3. Since genetic factors are nonmodifyable, transcription factors are promising targets for future host modulation therapy.
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Affiliation(s)
- R Ambili
- PMS College of Dental Sciences and Research, Thiruvananthapuram, Kerala 695028 India.
| | - Presanthila Janam
- Government Dental College, Thiruvananthapuram, Kerala 695011, India; PMS College of Dental Sciences and Research, Thiruvananthapuram, Kerala 695028 India
| | - P S Saneesh Babu
- Rajiv Gandhi Centre for Biotechnology (RGCB), Poojappura, Thiruvananthapuram, Kerala 695014, India
| | - Manu Prasad
- Rajiv Gandhi Centre for Biotechnology (RGCB), Poojappura, Thiruvananthapuram, Kerala 695014, India
| | - D Vinod
- Tissue Culture Laboratory, Sree Chitra Thirunal Institute for Medical Sciences And Technology (SCTIMST), Biomedical Technology Wing, Poojappura, Thiruvananthapuram 695012, India
| | - P R Anil Kumar
- Tissue Culture Laboratory, Sree Chitra Thirunal Institute for Medical Sciences And Technology (SCTIMST), Biomedical Technology Wing, Poojappura, Thiruvananthapuram 695012, India
| | - T V Kumary
- Tissue Culture Laboratory, Sree Chitra Thirunal Institute for Medical Sciences And Technology (SCTIMST), Biomedical Technology Wing, Poojappura, Thiruvananthapuram 695012, India
| | - S Asha Nair
- Rajiv Gandhi Centre for Biotechnology (RGCB), Poojappura, Thiruvananthapuram, Kerala 695014, India
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Icaritin Reduces Oral Squamous Cell Carcinoma Progression via the Inhibition of STAT3 Signaling. Int J Mol Sci 2017; 18:ijms18010132. [PMID: 28085115 PMCID: PMC5297765 DOI: 10.3390/ijms18010132] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 12/20/2016] [Accepted: 01/06/2017] [Indexed: 12/15/2022] Open
Abstract
Icaritin, a traditional Chinese medicine, possesses antitumor activity. The current study aimed to investigate icaritin effect and potential mechanism on oral squamous cell carcinoma (OSCC) development. OSCC cells proliferation, apoptosis, and autophagy were analyzed after incubation with icaritin at different concentrations and incubation times. The expressions of proteins related to proliferation, apoptosis, and autophagy, as well as signal transducer and activator of transcription 3 (STAT3) signal network, were also evaluated by western blot. Furthermore, STAT3 was knocked down by siRNA transfection to determine STAT3 role in OSCC cell proliferation and apoptosis. An oral specific carcinogenesis mouse model was used to explore icaritin effect on OSCC in vivo. Icaritin significantly inhibited OSCC proliferation in vitro and reduced the expression of both the cell-cycle progression proteins cyclin A2 and cyclin D1. Besides, icaritin increased cleaved caspase 3 and cleaved poly-(ADP-ribose) polymerase expression leading to apoptosis, and it activated autophagy. Icaritin significantly inhibited the expression of phospho-STAT3 (p-STAT3) in a dose- and time-dependent manner. In the in vivo experiment, the number of malignant tumors in the icaritin-treated group was significantly lower than the control. Overall, icaritin suppressed proliferation, promoted apoptosis and autophagy, and inhibited STAT3 signaling in OSCC in vitro and in vivo. In conclusion, icaritin might be a potential therapeutic agent against OSCC development.
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Giuliano A, Swift R, Arthurs C, Marote G, Abramo F, McKay J, Thomson C, Beltran M, Millar M, Priestnall S, Dobson J, Costantino-Casas F, Petrou T, McGonnell IM, Davies AJ, Weetman M, Garden OA, Masters JR, Thrasivoulou C, Ahmed A. Quantitative Expression and Co-Localization of Wnt Signalling Related Proteins in Feline Squamous Cell Carcinoma. PLoS One 2016; 11:e0161103. [PMID: 27559731 PMCID: PMC4999089 DOI: 10.1371/journal.pone.0161103] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 07/29/2016] [Indexed: 01/31/2023] Open
Abstract
Feline oral squamous cell carcinoma (FOSCC) is an aggressive neoplasm in cats. Little is known about the possible molecular mechanisms that may be involved in the initiation, maintenance and progression of FOSCC. Wnt signalling is critical in development and disease, including many mammalian cancers. In this study, we have investigated the expression of Wnt signalling related proteins using quantitative immunohistochemical techniques on tissue arrays. We constructed tissue arrays with 58 individual replicate tissue samples. We tested for the expression of four key Wnt/ß-catenin transcription targets, namely Cyclin D1 (CCND1 or CD1), FRA1, c-Myc and MMP7. All antibodies showed cross reactivity in feline tissue except MMP7. Quantitative immunohistochemical analysis of single proteins (expressed as area fraction / amount of tissue for normal vs tumor, mean ± SE) showed that the expression of CD1 (3.9 ± 0.5 vs 12.2 ± 0.9), FRA1 (5.5 ± 0.6 vs 16.8 ± 1.1) and c-Myc (5.4 ± 0.5 vs 12.5 ± 0.9) was increased in FOSCC tissue by 2.3 to 3 fold compared to normal controls (p<0.0001). By using a multilabel, quantitative fluorophore technique we further investigated if the co-localization of these proteins (all transcription factors) with each other and in the nucleus (stained with 4',6-diamidino-2-phenylindole, DAPI) was altered in FOSCC compared to normal tissue. The global intersection coefficients, a measure of the proximity of two fluorophore labeled entities, showed that there was a significant change (p < 0.01) in the co-localization for all permutations (e.g. CD1/FRA1 etc), except for the nuclear localization of CD1. Our results show that putative targets of Wnt signalling transcription are up-regulated in FOSCC with alterations in the co-localization of these proteins and could serve as a useful marker for the disease.
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Affiliation(s)
- Antonio Giuliano
- Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Rebecca Swift
- Department of Clinical Sciences and Services, The Royal Veterinary College, London, United Kingdom
- Division of Surgery, University College London, London, United Kingdom
| | - Callum Arthurs
- Prostate Cancer Research Center at the Centre for Stem Cells and Regenerative Medicine, King’s College London, London, United Kingdom
| | - Georgina Marote
- Department of Clinical Sciences and Services, The Royal Veterinary College, London, United Kingdom
- Division of Surgery, University College London, London, United Kingdom
| | - Francesca Abramo
- Department of Veterinary Sciences, University of Pisa, Pisa, Italy
| | - Jenny McKay
- IDEXX Laboratories Ltd., Grange House, West Yorkshire, United Kingdom
| | - Calum Thomson
- Dundee Imaging Facility, College of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Mariana Beltran
- Dundee Imaging Facility, College of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Michael Millar
- Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Simon Priestnall
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, London, United Kingdom
| | - Jane Dobson
- Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | | | - Terry Petrou
- Prostate Cancer Research Center at the Centre for Stem Cells and Regenerative Medicine, King’s College London, London, United Kingdom
| | - Imelda M. McGonnell
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, London, United Kingdom
| | | | | | - Oliver A. Garden
- Department of Clinical Sciences and Services, The Royal Veterinary College, London, United Kingdom
| | - John R. Masters
- Division of Surgery, University College London, London, United Kingdom
| | - Christopher Thrasivoulou
- Research Department of Cell and Developmental Biology, The Centre for Cell and Molecular Dynamics, Rockefeller Building, University College London, London, United Kingdom
| | - Aamir Ahmed
- Prostate Cancer Research Center at the Centre for Stem Cells and Regenerative Medicine, King’s College London, London, United Kingdom
- Division of Surgery, University College London, London, United Kingdom
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Peng HY, Cheng YC, Hsu YM, Wu GH, Kuo CC, Liou JP, Chang JY, Jin SLC, Shiah SG. MPT0B098, a Microtubule Inhibitor, Suppresses JAK2/STAT3 Signaling Pathway through Modulation of SOCS3 Stability in Oral Squamous Cell Carcinoma. PLoS One 2016; 11:e0158440. [PMID: 27367272 PMCID: PMC4930189 DOI: 10.1371/journal.pone.0158440] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 06/15/2016] [Indexed: 01/21/2023] Open
Abstract
Microtubule inhibitors have been shown to inhibit Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) signal transduction pathway in various cancer cells. However, little is known of the mechanism by which the microtubule inhibitors inhibit STAT3 activity. In the present study, we examined the effect of a novel small-molecule microtubule inhibitor, MPT0B098, on STAT3 signaling in oral squamous cell carcinoma (OSCC). Treatment of various OSCC cells with MPT0B098 induced growth inhibition, cell cycle arrest and apoptosis, as well as increased the protein level of SOCS3. The accumulation of SOCS3 protein enhanced its binding to JAK2 and TYK2 which facilitated the ubiquitination and degradation of JAK2 and TYK2, resulting in a loss of STAT3 activity. The inhibition of STAT3 activity led to sensitization of OSCC cells to MPT0B098 cytotoxicity, indicating that STAT3 is a key mediator of drug resistance in oral carcinogenesis. Moreover, the combination of MPT0B098 with the clinical drug cisplatin or 5-FU significantly augmented growth inhibition and apoptosis in OSCC cells. Taken together, our results provide a novel mechanism for the action of MPT0B098 in which the JAK2/STAT3 signaling pathway is suppressed through the modulation of SOCS3 protein level. The findings also provide a promising combinational therapy of MPT0B098 for OSCC.
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Affiliation(s)
- Hsuan-Yu Peng
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Yun-Ching Cheng
- Department of Medical Research, Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yuan-Ming Hsu
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Guan-Hsun Wu
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Ching-Chuan Kuo
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan
| | - Jing-Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Jang-Yang Chang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
- Division of Hematology and Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medical, National Cheng Kung University, Tainan, Taiwan
| | | | - Shine-Gwo Shiah
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
- * E-mail:
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25
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Chen Y, Zhang Y, Ji H, Ji Y, Yang J, Huang J, Sun D. Involvement of hypoxia-inducible factor-1α in the oxidative stress induced by advanced glycation end products in murine Leydig cells. Toxicol In Vitro 2016; 32:146-53. [DOI: 10.1016/j.tiv.2015.12.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 11/19/2015] [Accepted: 12/18/2015] [Indexed: 10/28/2022]
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Yuan J, Zhang F, Niu R. Multiple regulation pathways and pivotal biological functions of STAT3 in cancer. Sci Rep 2015; 5:17663. [PMID: 26631279 PMCID: PMC4668392 DOI: 10.1038/srep17663] [Citation(s) in RCA: 170] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 11/03/2015] [Indexed: 02/07/2023] Open
Abstract
STAT3 is both a transcription activator and an oncogene that is tightly regulated under normal physiological conditions. However, abundant evidence indicates that STAT3 is persistently activated in several cancers, with a crucial position in tumor onset and progression. In addition to its traditional role in cancer cell proliferation, invasion, and migration, STAT3 also promotes cancer through altering gene expression via epigenetic modification, inducing epithelial–mesenchymal transition (EMT) phenotypes in cancer cells, regulating the tumor microenvironment, and promoting cancer stem cells (CSCs) self-renewal and differentiation. STAT3 is regulated not only by the canonical cytokines and growth factors, but also by the G-protein-coupled receptors, cadherin engagement, Toll-like receptors (TLRs), and microRNA (miRNA). Despite the presence of diverse regulators and pivotal biological functions in cancer, no effective therapeutic inventions are available for inhibiting STAT3 and acquiring potent antitumor effects in the clinic. An improved understanding of the complex roles of STAT3 in cancer is required to achieve optimal therapeutic effects.
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Affiliation(s)
- Jie Yuan
- Public Laboratory, Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Medical University, Huan-Hu-Xi Road, Ti-Yuan-Bei, He Xi District, Tianjin, 300060, People's Republic of China
| | - Fei Zhang
- Public Laboratory, Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Medical University, Huan-Hu-Xi Road, Ti-Yuan-Bei, He Xi District, Tianjin, 300060, People's Republic of China
| | - Ruifang Niu
- Public Laboratory, Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Medical University, Huan-Hu-Xi Road, Ti-Yuan-Bei, He Xi District, Tianjin, 300060, People's Republic of China
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