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Vital AGB, de Carvalho MCM, Maia CR, Galvão HC, de Souza LB, de Andrade Santos PP. Relationship between tumor thickness and GATA3 immunoexpression in lip and tongue squamous cell carcinomas. Oral Maxillofac Surg 2024:10.1007/s10006-024-01251-0. [PMID: 38600414 DOI: 10.1007/s10006-024-01251-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 04/09/2024] [Indexed: 04/12/2024]
Abstract
PURPOSE Lower lip squamous cell carcinomas (LLSCCs) exhibit lower levels of aggressiveness, low relations with metastases and better prognosis when compared with intraoral squamous cell carcinomas. Differently from the oral tongue squamous cell carcinomas (OTSCCs) have a high tendency towards local invasion and lymph nodal dissemination. Our aim was to evaluate tumor thickness in cases of oral squamous cell carcinoma and correlate it with histological grade of malignancy and GATA3 immunoreactivity. METHODS Sixty specimens (30 LLSCCs and 30 OTSCCs) were scanned and digitized for the subsequent measurement of tumor thickness, histopathological examination, and quantitative analysis of GATA3 in the parenchyma and stroma of the tumors. RESULTS Tumor thickness was lower in LLSCC compared to OTSCCs. Immunohistochemical analysis of GATA3 in parenchyma, stroma and both compartments showed higher immunoreactivity in LLSCCs compared to OTSCCs. We observed a negative correlation between tumor thickness and GATA3 expression in parenchyma, stroma, and both compartments. Our results revealed the presence of GATA3 in all cases both in the parenchyma and in the stroma. Higher expression was more related to LLSCCs, which are known to be less aggressive tumors than OTSCCs. CONCLUSIONS A greater tumor thickness was found in OTSCCs, which was correlated with lower expression of GATA3, suggesting that this protein is involved in the inhibition of proliferative, migratory, and invasive capacity.
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Affiliation(s)
| | | | - Caio Rodrigues Maia
- Postgraduate Program in Dental Sciences, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Hébel Cavalcanti Galvão
- Department of Pathology, Health Sciences Center at Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Lélia Batista de Souza
- Department of Pathology, Health Sciences Center at Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Pedro Paulo de Andrade Santos
- Department of Morphology, Biosciences Center, Federal University of Rio Grande do Norte (UFRN), Campus Universitário Lagoa Nova, Centro de Biociências, Natal, RN, Brazil.
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Hashemi M, Esbati N, Rashidi M, Gholami S, Raesi R, Bidoki SS, Goharrizi MASB, Motlagh YSM, Khorrami R, Tavakolpournegari A, Nabavi N, Zou R, Mohammadnahal L, Entezari M, Taheriazam A, Hushmandi K. Biological landscape and nanostructural view in development and reversal of oxaliplatin resistance in colorectal cancer. Transl Oncol 2024; 40:101846. [PMID: 38042134 PMCID: PMC10716031 DOI: 10.1016/j.tranon.2023.101846] [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: 09/21/2023] [Revised: 11/09/2023] [Accepted: 11/20/2023] [Indexed: 12/04/2023] Open
Abstract
The treatment of cancer patients has been mainly followed using chemotherapy and it is a gold standard in improving prognosis and survival rate of patients. Oxaliplatin (OXA) is a third-platinum anti-cancer agent that reduces DNA synthesis in cancer cells to interfere with their growth and cell cycle progression. In spite of promising results of using OXA in cancer chemotherapy, the process of drug resistance has made some challenges. OXA is commonly applied in treatment of colorectal cancer (CRC) as a malignancy of gastrointestinal tract and when CRC cells increase their proliferation and metastasis, they can obtain resistance to OXA chemotherapy. A number of molecular factors such as CHK2, SIRT1, c-Myc, LATS2 and FOXC1 have been considered as regulators of OXA response in CRC cells. The non-coding RNAs are able to function as master regulator of other molecular pathways in modulating OXA resistance. There is a close association between molecular mechanisms such as apoptosis, autophagy, glycolysis and EMT with OXA resistance, so that apoptosis inhibition, pro-survival autophagy induction and stimulation of EMT and glycolysis can induce OXA resistance in CRC cells. A number of anti-tumor compounds including astragaloside IV, resveratrol and nobiletin are able to enhance OXA sensitivity in CRC cells. Nanoparticles for increasing potential of OXA in CRC suppression and reversing OXA resistance have been employed in cancer chemotherapy. These subjects are covered in this review article to shed light on molecular factors resulting in OXA resistance.
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Affiliation(s)
- Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Nastaran Esbati
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Sadaf Gholami
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Rasoul Raesi
- Department of Health Services Management, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Shahabadin Bidoki
- Faculty of medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | | | - Ramin Khorrami
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Alireza Tavakolpournegari
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6, Vancouver, BC, Canada
| | - Rongjun Zou
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China
| | - Leila Mohammadnahal
- Department of Health Services Management, School of Health, Tehran University of Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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Liao Y, Li R, Pei J, Zhang J, Chen B, Dong H, Feng X, Zhang H, Shang Y, Sui L, Kong Y. Melatonin suppresses tumor proliferation and metastasis by targeting GATA2 in endometrial cancer. J Pineal Res 2024; 76:e12918. [PMID: 37814536 DOI: 10.1111/jpi.12918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 10/11/2023]
Abstract
Endometrial cancer (EC) is a reproductive system disease that occurs in perimenopausal and postmenopausal women. However, its etiology is unclear. Melatonin (MT) has been identified as a therapeutic agent for EC; however, its exact mechanism remains unclear. In the present study, we determined that GATA-binding protein 2 (GATA2) is expressed at low levels in EC and regulated by MT. MT upregulates the expression of GATA2 through MT receptor 1A (MTNR1A), whereas GATA2 can promote the expression of MTNR1A by binding to its promoter region. In addition, in vivo and in vitro experiments showed that MT inhibited the proliferation and metastasis of EC cells by upregulating GATA2 expression. The protein kinase B (AKT) pathway was also affected. In conclusion, these findings suggest that MT and GATA2 play significant roles in EC development.
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Affiliation(s)
- Yangyou Liao
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Ruiling Li
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jingyuan Pei
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Juan Zhang
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Bo Chen
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Haojie Dong
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Xiaoyu Feng
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Hongshuo Zhang
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Yuhong Shang
- Department of Gynecology, First Affiliated Hospital, Dalian Medical University, Dalian, Liaoning, China
| | - Linlin Sui
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Ying Kong
- Core Laboratory of Glycobiology and Glycoengineering, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
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Ileriturk M, Ileriturk D, Kandemir O, Akaras N, Simsek H, Erdogan E, Kandemir FM. Naringin attenuates oxaliplatin-induced nephrotoxicity and hepatotoxicity: A molecular, biochemical, and histopathological approach in a rat model. J Biochem Mol Toxicol 2024; 38:e23604. [PMID: 38037725 DOI: 10.1002/jbt.23604] [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: 02/03/2023] [Revised: 09/01/2023] [Accepted: 11/20/2023] [Indexed: 12/02/2023]
Abstract
Oxaliplatin (OXL) is a significant therapy agent for the worldwide increase in cancer cases. Naringin (4',5,7-trihydroxy flavonon 7-rhamnoglucoside, NRG) has a wide range of biological and pharmacological activities, including antioxidant and anti-inflammatory potentials. This research aimed to investigate NRG activity in OXL-induced hepatorenal toxicity. Accordingly, OXL (4 mg/kg b.w.) in 5% glucose was injected intraperitoneally on the first, second, fifth, and sixth days, and NRG (50 and 100 mg/kg b.w.) was given orally 30 min before to treatment. Biochemical, genetic, and histological methods were utilized to investigate the function tests, oxidant/antioxidant status, inflammation, apoptosis, and endoplasmic reticulum (ER) stress pathways in kidney and liver tissues. Administration of NRG demonstrated an antioxidant effect by increasing the activities of OXL-induced reduced antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase) and decreasing the elevated lipid peroxidation parameter malondialdehyde levels. Nuclear factor-κB, tumor necrosis factor-α, interleukin-1β, and inducible nitric oxide synthase levels increased in OXL administered groups but reduced in NRG-treated groups. In the OXL-administered groups, NRG reduced the apoptosis-inducing factors Caspase-3 and B-cell lymphoma 2 (Bcl-2)-associated X protein levels, while elevating the antiapoptotic factor Bcl-2 levels. OXL triggered prolonged ER stress by increasing the levels of ER stress parameters activating transcription factor 6, protein kinase R-like ER kinase, inositol-requiring enzyme 1α, and glucose-regulated protein 78. Therefore, with the NRG administration, this activity was reduced and the ER stress level decreased. Taken together, it was found that OXL induced toxicity by increasing the levels of urea and creatinine, alanine transaminase, aspartate aminotransferase, and alkaline phosphatase activities, inflammation, apoptosis, ER stress, and oxidants in the liver and kidney tissue, and NRG had a protective effect by reversing the deterioration in these pathways.
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Affiliation(s)
- Mustafa Ileriturk
- Department of Animal Science, Horasan Vocational College, Ataturk University, Erzurum, Turkey
| | - Duygu Ileriturk
- Department of Educational Sciences, Kazım Karabekir Education Faculty, Ataturk University, Erzurum, Turkey
| | - Ozge Kandemir
- Department of Food Processing, Aksaray Technical Sciences Vocational School, Aksaray University, Aksaray, Turkey
| | - Nurhan Akaras
- Department of Histology and Embryology, Faculty of Medicine, Aksaray University, Aksaray, Turkey
| | - Hasan Simsek
- Department of Physiology, Faculty of Medicine, Aksaray University, Aksaray, Turkey
| | - Ender Erdogan
- Department of Biochemsitry, Faculty of Veterinary Medicine, Ataturk University, Eruzurum, Turkey
| | - Fatih M Kandemir
- Department of Medical Biochemistry, Faculty of Medicine, Aksaray University, Aksaray, Turkey
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Horak J, Dolnikova A, Cumaogullari O, Cumova A, Navvabi N, Vodickova L, Levy M, Schneiderova M, Liska V, Andera L, Vodicka P, Opattova A. MiR-140 leads to MRE11 downregulation and ameliorates oxaliplatin treatment and therapy response in colorectal cancer patients. Front Oncol 2022; 12:959407. [PMID: 36324569 PMCID: PMC9618941 DOI: 10.3389/fonc.2022.959407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/01/2022] [Indexed: 12/02/2022] Open
Abstract
Cancer therapy failure is a fundamental challenge in cancer treatment. One of the most common reasons for therapy failure is the development of acquired resistance of cancer cells. DNA-damaging agents are frequently used in first-line chemotherapy regimens and DNA damage response, and DNA repair pathways are significantly involved in the mechanisms of chemoresistance. MRE11, a part of the MRN complex involved in double-strand break (DSB) repair, is connected to colorectal cancer (CRC) patients’ prognosis. Our previous results showed that single-nucleotide polymorphisms (SNPs) in the 3′ untranslated region (3′UTR) microRNA (miRNA) binding sites of MRE11 gene are associated with decreased cancer risk but with shorter survival of CRC patients, which implies the role of miRNA regulation in CRC. The therapy of colorectal cancer utilizes oxaliplatin (oxalato(trans-l-1,2-diaminocyclohexane)platinum), which is often compromised by chemoresistance development. There is, therefore, a crucial clinical need to understand the cellular processes associated with drug resistance and improve treatment responses by applying efficient combination therapies. The main aim of this study was to investigate the effect of miRNAs on the oxaliplatin therapy response of CRC patients. By the in silico analysis, miR-140 was predicted to target MRE11 and modulate CRC prognosis. The lower expression of miR-140 was associated with the metastatic phenotype (p < 0.05) and poor progression-free survival (odds ratio (OR) = 0.4, p < 0.05). In the in vitro analysis, we used miRNA mimics to increase the level of miR-140 in the CRC cell line. This resulted in decreased proliferation of CRC cells (p < 0.05). Increased levels of miR-140 also led to increased sensitivity of cancer cells to oxaliplatin (p < 0.05) and to the accumulation of DNA damage. Our results, both in vitro and in vivo, suggest that miR-140 may act as a tumor suppressor and plays an important role in DSB DNA repair and, consequently, CRC therapy response.
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Affiliation(s)
- Josef Horak
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine Czech Academy of Sciences (CAS), Prague, Czechia
- Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Alexandra Dolnikova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine Czech Academy of Sciences (CAS), Prague, Czechia
- First Faculty of Medicine, Charles University, Prague, Czechia
| | - Ozge Cumaogullari
- Eastern Mediterranean University, Dr. Fazıl Küçük Faculty of Medicine, North Cyprus, Turkey
- Gazimağusa State Hospital, Molecular Genetics Research Laboratory, North Cyprus, Turkey
| | - Andrea Cumova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine Czech Academy of Sciences (CAS), Prague, Czechia
- First Faculty of Medicine, Charles University, Prague, Czechia
| | - Nazila Navvabi
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine Czech Academy of Sciences (CAS), Prague, Czechia
- Biomedical Center in Pilsen, Charles University, Pilsen, Czechia
| | - Ludmila Vodickova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine Czech Academy of Sciences (CAS), Prague, Czechia
- First Faculty of Medicine, Charles University, Prague, Czechia
- Biomedical Center in Pilsen, Charles University, Pilsen, Czechia
| | - Miroslav Levy
- Surgical Department, 1.st Medical Faculty, Charles University and Thomayer Hospital, Prague, Czechia
| | - Michaela Schneiderova
- Department of Surgery, University Hospital Kralovske Vinohrady and 3rd Faculty of Medicine, Charles University, Prague, Czechia
| | - Vaclav Liska
- Biomedical Center in Pilsen, Charles University, Pilsen, Czechia
- Department of Surgery, Medical Faculty in Pilsen, Charles University, Pilsen, Czechia
| | - Ladislav Andera
- Institute of Biotechnology, Czech Academy of Sciences (CAS), Vestec, Czechia
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine Czech Academy of Sciences (CAS), Prague, Czechia
- First Faculty of Medicine, Charles University, Prague, Czechia
- Biomedical Center in Pilsen, Charles University, Pilsen, Czechia
- *Correspondence: Alena Opattova, ; Pavel Vodicka,
| | - Alena Opattova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine Czech Academy of Sciences (CAS), Prague, Czechia
- First Faculty of Medicine, Charles University, Prague, Czechia
- Biomedical Center in Pilsen, Charles University, Pilsen, Czechia
- *Correspondence: Alena Opattova, ; Pavel Vodicka,
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SOX4-mediated FBW7 transcriptional upregulation confers Tamoxifen resistance in ER+ breast cancers via GATA3 downregulation. Life Sci 2022; 303:120682. [PMID: 35662647 DOI: 10.1016/j.lfs.2022.120682] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/24/2022] [Accepted: 05/31/2022] [Indexed: 11/22/2022]
Abstract
AIM Tamoxifen-mediated endocrine therapy has been standard treatment for ER+ breast cancers; however, majority of them acquire resistance leading to disease relapse. Although numerous substrates of E3 ligase FBW7 are known, only a handful of factors that regulate FBW7 expression and function are reported. In particular, there remains a lack of in-depth understanding of FBW7 transcriptional regulation. MATERIALS AND METHODS Luciferase reporter assay was performed after cloning full length and truncated FBW7 promoters followed by Chromatin immunoprecipitation assay to validate binding of SOX4 on FBW7 promoter. Transcriptional regulation of FBW7 by SOX4 and their biological consequences with respect to ER+ breast cancer was then evaluated using immunoblotting and other cell based assays. KEY FINDINGS SOX4 positively regulates FBW7 at transcriptional level by binding to three putative SOX4 biding sites within 3.1 kb long FBW7 promoter. Analysis of publicly available RNAseq datasets also showed a positive correlation between SOX4 and FBW7 mRNA in cancer cell lines and patient samples. qPCR and Immunoblotting confirmed that transiently or stably expressed SOX4 induced both endogenous FBW7 mRNA and protein levels. Our findings further demonstrated that increased levels of SOX4 and FBW7 in MCF7 mammospheres promoted cancer stemness and tumor cell dormancy. We further showed that both MCF7 mammospheres and MCFTAMR cells had elevated SOX4 levels which apparently enhanced FBW7 to potentiate GATA3 degradation leading to enhanced stemness, tumor dormancy and Tamoxifen resistance in MCF7TAMR as well as patients with ER+ breast cancers. SIGNIFICANCE Targeting SOX4-FBW7-GATA3 axis may overcome tamoxifen resistance in ER+ breast cancers.
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Scheurlen KM, Chariker JH, Kanaan Z, Littlefield AB, George JB, Seraphine C, Rochet A, Rouchka EC, Galandiuk S. The NOTCH4-GATA4-IRG1 axis as a novel target in early-onset colorectal cancer. Cytokine Growth Factor Rev 2022; 67:25-34. [DOI: 10.1016/j.cytogfr.2022.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 06/27/2022] [Indexed: 11/24/2022]
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Zhang Q, Qi T, Long Y, Li X, Yao Y, Wu Q, Zou A, Qthmane B, Liu P. GATA3 Predicts the Tumor Microenvironment Phenotypes and Molecular Subtypes for Bladder Carcinoma. Front Surg 2022; 9:860663. [PMID: 35647011 PMCID: PMC9135132 DOI: 10.3389/fsurg.2022.860663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 04/04/2022] [Indexed: 12/24/2022] Open
Abstract
Aims GATA3 is a key player in antitumor immunology, and continuous studies show that it might be a key biomarker for bladder cancer (BLCA). Thus, we lucubrate the immunological role of GATA3 in BLCA. Main Methods We initially used pan-cancer analysis to analyze the expression pattern and immunological function of GATA3 with data gathered from the TCGA (The Cancer Genome Atlas). Then, in the BLCA tumor microenvironment (TME), we comprehensively associated GATA3 with immunomodulators, cancer immune cycles, tumor-infiltrating immune cells (TIICs), immune checkpoints, and T-cell inflamed scores(TIS). The role of GATA3 in predicting BLCA molecular subtypes and responsiveness to various treatment regimens was also investigated. We confirmed our findings in an external cohort and the Xiangya-Pingkuang cohort to guarantee the correctness of our study. Key Findings GATA3 was preferentially expressed in the TME of numerous malignancies, including BLCA. High GATA3 expression was adversely connected with immunological aspects such as immunomodulators, cancer immune cycles, TIICs, immune checkpoints, and TIS in the BLCA TME. In addition, high GATA3 was more likely to be a luminal subtype, which meant it was less susceptible to cancer immunotherapy and neoadjuvant chemotherapy but more sensitive to targeted treatments. Significance GATA3 may aid in the precision treatment for BLCA because it can accurately predict the clinical outcomes and the TME characteristics of BLCA.
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Liu B, Wang H. Oxaliplatin induces ferroptosis and oxidative stress in HT29 colorectal cancer cells by inhibiting the Nrf2 signaling pathway. Exp Ther Med 2022; 23:394. [PMID: 35495610 PMCID: PMC9047032 DOI: 10.3892/etm.2022.11321] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/06/2021] [Indexed: 11/11/2022] Open
Abstract
Oxaliplatin is a third-generation platinum drug that is used as first-line chemotherapy for colorectal cancer (CRC). Ferroptosis has been demonstrated to induce cell death and oxidative stress in CRC. The aim of the present study was to investigate whether oxaliplatin could exert anticancer effects on CRC by promoting ferroptosis and oxidative stress. Cell viability and apoptosis were assessed by performing Cell Counting Kit-8 and TUNEL assays, respectively, in the presence or absence of the ferroptosis inducer, erastin. Western blotting was performed to detect the levels of certain nuclear factor erythroid 2-related factor 2 (Nrf2)-associated proteins in HT29 cells treated with oxaliplatin. Furthermore, after treating cells with the Nrf2 activator, NK-252, Fe2+ was detected in cells using a commercial kit. Ferroptosis-associated protein expression was also evaluated via western blotting. Additionally, ELISA was adopted to measure the levels of oxidative stress-related factors. Following the addition of erastin, iron ion content, ferroptosis-related protein expression and the levels of oxidative stress-related factors were assayed as described previously. The results of the present study demonstrated that oxaliplatin inhibited viability and the Nrf2 signaling pathway in CRC cells. In addition, oxaliplatin promoted ferroptosis and oxidative stress in CRC cells by inhibiting the Nrf2 signaling pathway. Treatment with oxaliplatin enhanced the effects of erastin on CRC cells by promoting ferroptosis and oxidative stress and inhibiting cell viability. In conclusion, oxaliplatin induced ferroptosis and oxidative stress in CRC cells by inhibiting the Nrf2 signaling pathway.
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Affiliation(s)
- Ben Liu
- Department of Oncology, Shuyang County Hospital of Traditional Chinese Medicine, Suqian, Jiangsu 223600, P.R. China
| | - Hui Wang
- Department of Oncology, The Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu 215004, P.R. China
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Preethi KA, Lakshmanan G, Sekar D. Antagomir technology in the treatment of different types of cancer. Epigenomics 2021; 13:481-484. [PMID: 33719531 DOI: 10.2217/epi-2020-0439] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- K Auxzilia Preethi
- Dental Research Cell & Biomedical Research Unit, Saveetha Dental College & Hospital, Saveetha Institute of Medical & Technical Sciences (SIMATS), Saveetha University, Chennai 600077, India
| | - Ganesh Lakshmanan
- Department of Anatomy, Saveetha Dental College & Hospital, Saveetha Institute of Medical & Technical Science (SIMATS), Saveetha University, Chennai 600077, India
| | - Durairaj Sekar
- Dental Research Cell & Biomedical Research Unit, Saveetha Dental College & Hospital, Saveetha Institute of Medical & Technical Sciences (SIMATS), Saveetha University, Chennai 600077, India
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