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Abukwaik R, Vera-Siguenza E, Tennant D, Spill F. p53 Orchestrates Cancer Metabolism: Unveiling Strategies to Reverse the Warburg Effect. Bull Math Biol 2024; 86:124. [PMID: 39207627 PMCID: PMC11362376 DOI: 10.1007/s11538-024-01346-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 07/30/2024] [Indexed: 09/04/2024]
Abstract
Cancer cells exhibit significant alterations in their metabolism, characterised by a reduction in oxidative phosphorylation (OXPHOS) and an increased reliance on glycolysis, even in the presence of oxygen. This metabolic shift, known as the Warburg effect, is pivotal in fuelling cancer's uncontrolled growth, invasion, and therapeutic resistance. While dysregulation of many genes contributes to this metabolic shift, the tumour suppressor gene p53 emerges as a master player. Yet, the molecular mechanisms remain elusive. This study introduces a comprehensive mathematical model, integrating essential p53 targets, offering insights into how p53 orchestrates its targets to redirect cancer metabolism towards an OXPHOS-dominant state. Simulation outcomes align closely with experimental data comparing glucose metabolism in colon cancer cells with wild-type and mutated p53. Additionally, our findings reveal the dynamic capability of elevated p53 activation to fully reverse the Warburg effect, highlighting the significance of its activity levels not just in triggering apoptosis (programmed cell death) post-chemotherapy but also in modifying the metabolic pathways implicated in treatment resistance. In scenarios of p53 mutations, our analysis suggests targeting glycolysis-instigating signalling pathways as an alternative strategy, whereas targeting solely synthesis of cytochrome c oxidase 2 (SCO2) does support mitochondrial respiration but may not effectively suppress the glycolysis pathway, potentially boosting the energy production and cancer cell viability.
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Affiliation(s)
- Roba Abukwaik
- Mathematics Department, King Abdulaziz University, Rabigh, Saudi Arabia.
- School of Mathematics, University of Birmingham, Birmingham, B15 2TS, UK.
| | - Elias Vera-Siguenza
- School of Mathematics, University of Birmingham, Birmingham, B15 2TS, UK
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, B15 2TT, UK
| | - Daniel Tennant
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, B15 2TT, UK
| | - Fabian Spill
- School of Mathematics, University of Birmingham, Birmingham, B15 2TS, UK.
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You H, Gou Q, Dong M, Chang F, Xiu J. Exploring the role of iNOS in HFpEF-Related myocardial fibrosis: Involvement of PTEN-PI3K/AKT signaling pathway. Biochem Biophys Res Commun 2024; 734:150589. [PMID: 39245028 DOI: 10.1016/j.bbrc.2024.150589] [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: 07/04/2024] [Revised: 08/06/2024] [Accepted: 08/21/2024] [Indexed: 09/10/2024]
Abstract
BACKGROUND Heart failure with preserved ejection fraction (HFpEF) is a challenging condition to treat with myocardial fibrosis being a pivotal pathological component. Previous studies have suggested a role for inducible nitric oxide synthase (iNOS) in the progression of this condition, but the precise mechanisms remain unclear. This study aimed to investigate the role of iNOS in HFpEF-related myocardial fibrosis and identify potential therapeutic targets. METHODS A 'two-hit' mouse model of HFpEF was established, and echocardiography, histopathology and biochemical analyses were performed. In vitro experiments were conducted in mouse cardiac fibroblasts, with iNOS overexpression and application of iNOS or phosphatidylinositol 3 kinase (PI3K) inhibitors. The iNOS-S-nitrosylated phosphatase and TENsin homolog (SNO-PTEN)-phosphorylated-protein kinase B (p-AKT) pathway was investigated, along with the effects on fibrotic markers and cell proliferation and migration. RESULTS HFpEF mice exhibited significant cardiac dysfunction and fibrosis, with increased expression of iNOS, SNO-PTEN, and p-AKT, indicative of the activation of the iNOS-SNO-PTEN-p-AKT pathway. iNOS overexpression in mouse cardiac fibroblasts led to increased SNO-PTEN, decreased PTEN, activated phosphorylated PI3K (p-PI3K) and p-AKT, and enhanced cell proliferation and migration, as well as increased collagen I and III expression. The use of an iNOS inhibitor (L-NIL) or a PI3K inhibitor (LY294002) partially reversed these changes. CONCLUSION Our findings suggest that the iNOS-SNO-PTEN-p-AKT pathway may play a crucial role in HFpEF-related myocardial fibrosis, with iNOS and PI3K inhibitors offering potential therapeutic benefits. These insights may pave the way for the development of effective drug therapies for HFpEF.
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Affiliation(s)
- Hongjun You
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China; Department of Cardiovascular Medicine, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Qiling Gou
- Department of Cardiovascular Medicine, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Mengya Dong
- Department of Cardiovascular Medicine, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Fengjun Chang
- Department of Cardiovascular Medicine, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Jiancheng Xiu
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
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KAŠTELAN SNJEŽANA, PAVIČIĆ ANADIDOVIĆ, PAŠALIĆ DARIA, NIKUŠEVA-MARTIĆ TAMARA, ČANOVIĆ SAMIR, KOVAČEVIĆ PETRA, KONJEVODA SUZANA. Biological characteristics and clinical management of uveal and conjunctival melanoma. Oncol Res 2024; 32:1265-1285. [PMID: 39055896 PMCID: PMC11267116 DOI: 10.32604/or.2024.048437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/23/2024] [Indexed: 07/28/2024] Open
Abstract
Uveal and conjunctival melanomas are relatively rare tumors; nonetheless, they pose a significant risk of mortality for a large number of affected individuals. The pathogenesis of melanoma at different sites is very similar, however, the prognosis for patients with ocular melanoma remains unfavourable, primarily due to its distinctive genetic profile and tumor microenvironment. Regardless of considerable advances in understanding the genetic characteristics and biological behaviour, the treatment of uveal and conjunctival melanoma remains a formidable challenge. To enhance the prospect of success, collaborative efforts involving medical professionals and researchers in the fields of ocular biology and oncology are essential. Current data show a lack of well-designed randomized clinical trials and limited benefits in current forms of treatment for these tumors. Despite advancements in the development of effective melanoma therapeutic strategies, all current treatments for uveal melanoma (UM) and conjunctival melanoma (CoM) remain unsatisfactory, resulting in a poor long-term prognosis. Ongoing trials offer hope for positive outcomes in advanced and metastatic tumors. A more comprehensive understanding of the genetic and molecular abnormalities involved in the development and progression of ocular melanomas opens the way for the development of personalized therapy, with various potential therapeutic targets currently under consideration. Increased comprehension of the molecular pathogenesis of UM and CoM and their specificities may aid in the development of new and more effective systemic therapeutic agents, with the hope of improving the prognosis for patients with metastatic disease.
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Affiliation(s)
- SNJEŽANA KAŠTELAN
- School of Medicine, University of Zagreb, Zagreb, 10000, Croatia
- Department of Ophthalmology, Clinical Hospital Dubrava, Zagreb, 10000, Croatia
| | | | - DARIA PAŠALIĆ
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, School of Medicine, University of Zagreb, Zagreb, 10000, Croatia
| | - TAMARA NIKUŠEVA-MARTIĆ
- Department of Biology and Genetics, School of Medicine, University of Zagreb, Zagreb, 10000, Croatia
| | - SAMIR ČANOVIĆ
- Department of Ophthalmology, Zadar General Hospital, Zadar, 23000, Croatia
- Department of Health Studies, University of Zadar, Zadar, 23000, Croatia
| | - PETRA KOVAČEVIĆ
- School of Medicine, University of Zagreb, Zagreb, 10000, Croatia
- School of Medicine, University of Split, Split, 21000, Croatia
| | - SUZANA KONJEVODA
- Department of Ophthalmology, Zadar General Hospital, Zadar, 23000, Croatia
- Department of Health Studies, University of Zadar, Zadar, 23000, Croatia
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Lee E, Oliveira LD, Dairo O, Nourmohammadi Abadchi S, Cha E, Mendes AA, Wang JH, Song DY, Lotan TL. PTEN Loss Is Associated with Adverse Outcomes in the Setting of Salvage Radiation Therapy. Eur Urol Oncol 2024:S2588-9311(24)00155-X. [PMID: 38964997 DOI: 10.1016/j.euo.2024.06.008] [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: 02/21/2024] [Revised: 06/04/2024] [Accepted: 06/20/2024] [Indexed: 07/06/2024]
Abstract
BACKGROUND Salvage radiation therapy (SRT) is a mainstay of treatment for biochemical relapse following radical prostatectomy; however, few studies have examined genomic biomarkers in this context. OBJECTIVE We characterized the prognostic impact of previously identified deleterious molecular phenotypes-loss of PTEN, ERG expression, and TP53 mutation-for patients undergoing SRT. DESIGN, SETTING, AND PARTICIPANTS We leveraged an institutional database of 320 SRT patients with available tissue and follow-up. Tissue microarrays were used for genetically validated immunohistochemistry assays. INTERVENTION All men underwent SRT with or without androgen deprivation therapy OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Univariable and multivariable Cox-proportional hazard models assessed the association of molecular phenotypes with biochemical recurrence-free (bRFS) and metastasis-free (MFS) survival after SRT. RESULTS AND LIMITATIONS Loss of PTEN (n = 123, 43%) and ERG expression (n = 118, 39%) were common in this cohort, while p53 overexpression (signifying TP53 missense mutation) was infrequent (n = 21, 7%). In univariable analyses, any loss of PTEN portended worse bRFS (hazard ratio [HR] 1.86; 95% confidence interval 1.36-2.57) and MFS (HR 1.89; 1.21-2.94), with homogeneous PTEN loss being associated with the highest risk of MFS (HR 2.47; 1.54-3.95). Similarly, p53 overexpression predicted worse bRFS (HR 1.95; 1.14-3.32) and MFS (HR 2.79; 1.50-5.19). ERG expression was associated with worse MFS only (HR 1.6; 1.03-2.48). On the multivariable analysis adjusting for known prognostic features, homogeneous PTEN loss remained predictive of adverse bRFS (HR 1.82; 1.12-2.96) and MFS (HR 2.08; 1.06-4.86). The study is limited by its retrospective and single-institution design. CONCLUSIONS PTEN loss by immunohistochemistry is an independent adverse prognostic factor for bRFS and MFS in prostate cancer patients treated with SRT. Future trials will determine the optimal approach to treating SRT patients with adverse molecular prognostic features. PATIENT SUMMARY Loss of the PTEN tumor suppressor protein is associated with worse outcomes after salvage radiotherapy, independent of other clinical or pathologic patient characteristics.
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Affiliation(s)
- Emerson Lee
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lia DePaula Oliveira
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Oluwademilade Dairo
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Eumee Cha
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Adrianna A Mendes
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jarey H Wang
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Daniel Y Song
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tamara L Lotan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Urology, Johns Hopkins School of Medicine, Baltimore, MD, USA; Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
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Zhang Y, Chen S, Tang X, Peng Y, Jiang T, Zhang X, Li J, Liu Y, Yang Z. The role of KLRG1: a novel biomarker and new therapeutic target. Cell Commun Signal 2024; 22:337. [PMID: 38898461 PMCID: PMC11186184 DOI: 10.1186/s12964-024-01714-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 06/13/2024] [Indexed: 06/21/2024] Open
Abstract
Killer cell lectin-like receptor G1 (KLRG1) is an immune checkpoint receptor expressed predominantly in NK and T-cell subsets that downregulates the activation and proliferation of immune cells and participates in cell-mediated immune responses. Accumulating evidence has demonstrated the importance of KLRG1 as a noteworthy disease marker and therapeutic target that can influence disease onset, progression, and prognosis. Blocking KLRG1 has been shown to effectively mitigate the effects of downregulation in various mouse tumor models, including solid tumors and hematologic malignancies. However, KLRG1 inhibitors have not yet been approved for human use, and the understanding of KLRG1 expression and its mechanism of action in various diseases remains incomplete. In this review, we explore alterations in the distribution, structure, and signaling pathways of KLRG1 in immune cells and summarize its expression patterns and roles in the development and progression of autoimmune diseases, infectious diseases, and cancers. Additionally, we discuss the potential applications of KLRG1 as a tool for tumor immunotherapy.
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Affiliation(s)
- Yakun Zhang
- School of Medicine, Chongqing University, Chongqing, 400030, China
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Shuang Chen
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Xinyi Tang
- School of Medicine, Chongqing University, Chongqing, 400030, China
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Yu Peng
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Tingting Jiang
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Xiaomei Zhang
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Jun Li
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Yao Liu
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China.
| | - Zailin Yang
- Department of Hematology-Oncology, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China.
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Xu D, Wang W, Wang D, Ding J, Zhou Y, Zhang W. Long noncoding RNA MALAT-1: A versatile regulator in cancer progression, metastasis, immunity, and therapeutic resistance. Noncoding RNA Res 2024; 9:388-406. [PMID: 38511067 PMCID: PMC10950606 DOI: 10.1016/j.ncrna.2024.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 03/22/2024] Open
Abstract
Long noncoding RNAs (lncRNAs) are RNA transcripts longer than 200 nucleotides that do not code for proteins but have been linked to cancer development and metastasis. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT-1) influences crucial cancer hallmarks through intricate molecular mechanisms, including proliferation, invasion, angiogenesis, apoptosis, and the epithelial-mesenchymal transition (EMT). The current article highlights the involvement of MALAT-1 in drug resistance, making it a potential target to overcome chemotherapy refractoriness. It discusses the impact of MALAT-1 on immunomodulatory molecules, such as major histocompatibility complex (MHC) proteins and PD-L1, leading to immune evasion and hindering anti-tumor immune responses. MALAT-1 also plays a significant role in cancer immunology by regulating diverse immune cell populations. In summary, MALAT-1 is a versatile cancer regulator, influencing tumorigenesis, chemoresistance, and immunotherapy responses. Understanding its precise molecular mechanisms is crucial for developing targeted therapies, and therapeutic strategies targeting MALAT-1 show promise for improving cancer treatment outcomes. However, further research is needed to fully uncover the role of MALAT-1 in cancer biology and translate these findings into clinical applications.
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Affiliation(s)
- Dexin Xu
- Department of Orthopedics, Jilin Province FAW General Hospital, Changchun, 130000, China
| | - Wenhai Wang
- Department of Cardiology, Jilin Province FAW General Hospital, Changchun, 130000, China
| | - Duo Wang
- Department of Geriatrics, Jilin Province FAW General Hospital, Changchun, 130000, China
| | - Jian Ding
- Department of Electrodiagnosis, Jilin Province FAW General Hospital, Changchun, 130000, China
| | - Yunan Zhou
- Department of Orthopedics, Jilin Province FAW General Hospital, Changchun, 130000, China
| | - Wenbin Zhang
- Department of Cardiology, Jilin Province FAW General Hospital, Changchun, 130000, China
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Göttig L, Schreiner S. E4orf1: The triple agent of adenovirus - Unraveling its roles in oncogenesis, infectious obesity and immune responses in virus replication and vector therapy. Tumour Virus Res 2024; 17:200277. [PMID: 38428735 PMCID: PMC10937242 DOI: 10.1016/j.tvr.2024.200277] [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: 01/22/2024] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/03/2024] Open
Abstract
Human Adenoviruses (HAdV) are nearly ubiquitous pathogens comprising numerous sub-types that infect various tissues and organs. Among many encoded proteins that facilitate viral replication and subversion of host cellular processes, the viral E4orf1 protein has emerged as an intriguing yet under-investigated player in the complex interplay between the virus and its host. E4orf1 has gained attention as a metabolism activator and oncogenic agent, while recent research is showing that E4orf1 may play a more important role in modulating cellular pathways such as PI3K-Akt-mTOR, Ras, the immune response and further HAdV replication stages than previously anticipated. In this review, we aim to explore the structure, molecular mechanisms, and biological functions of E4orf1, shedding light on its potentially multifaceted roles during HAdV infection, including metabolic diseases and oncogenesis. Furthermore, we discuss the role of functional E4orf1 in biotechnological applications such as Adenovirus (AdV) vaccine vectors and oncolytic AdV. By dissecting the intricate relationships between HAdV types and E4orf1 proteins, this review provides valuable insights into viral pathogenesis and points to promising areas of future research.
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Affiliation(s)
- Lilian Göttig
- Institute of Virology, School of Medicine, Technical University of Munich, Germany
| | - Sabrina Schreiner
- Institute of Virology, School of Medicine, Technical University of Munich, Germany; Institute of Virology, Hannover Medical School, Hannover, Germany; Cluster of Excellence RESIST (Resolving Infection Susceptibility; EXC 2155), Hannover, Germany; Institute of Virology, Medical Center - University of Freiburg, Freiburg, Germany.
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8
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Baldarelli RM, Smith CL, Ringwald M, Richardson JE, Bult CJ. Mouse Genome Informatics: an integrated knowledgebase system for the laboratory mouse. Genetics 2024; 227:iyae031. [PMID: 38531069 PMCID: PMC11075557 DOI: 10.1093/genetics/iyae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 02/13/2024] [Indexed: 03/28/2024] Open
Abstract
Mouse Genome Informatics (MGI) is a federation of expertly curated information resources designed to support experimental and computational investigations into genetic and genomic aspects of human biology and disease using the laboratory mouse as a model system. The Mouse Genome Database (MGD) and the Gene Expression Database (GXD) are core MGI databases that share data and system architecture. MGI serves as the central community resource of integrated information about mouse genome features, variation, expression, gene function, phenotype, and human disease models acquired from peer-reviewed publications, author submissions, and major bioinformatics resources. To facilitate integration and standardization of data, biocuration scientists annotate using terms from controlled metadata vocabularies and biological ontologies (e.g. Mammalian Phenotype Ontology, Mouse Developmental Anatomy, Disease Ontology, Gene Ontology, etc.), and by applying international community standards for gene, allele, and mouse strain nomenclature. MGI serves basic scientists, translational researchers, and data scientists by providing access to FAIR-compliant data in both human-readable and compute-ready formats. The MGI resource is accessible at https://informatics.jax.org. Here, we present an overview of the core data types represented in MGI and highlight recent enhancements to the resource with a focus on new data and functionality for MGD and GXD.
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Affiliation(s)
| | | | | | | | - Carol J Bult
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
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9
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Rajendran P, Sekar R, Dhayasankar PS, Ali EM, Abdelsalam SA, Balaraman S, Chellappan BV, Metwally AM, Abdallah BM. PI3K/AKT Signaling Pathway Mediated Autophagy in Oral Carcinoma - A Comprehensive Review. Int J Med Sci 2024; 21:1165-1175. [PMID: 38774756 PMCID: PMC11103401 DOI: 10.7150/ijms.94566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/13/2024] [Indexed: 05/24/2024] Open
Abstract
Oral cancer is the most heterogeneous cancer at clinical and histological levels. PI3K/AKT/mTOR pathway was identified as one of the most commonly modulated signals in oral cancer, which regulates major cellular and metabolic activity of the cell. Thus, various proteins of PI3K/AKT/mTOR pathway were used as therapeutic targets for oral cancer, to design more specific drugs with less off-target toxicity. This review sheds light on the regulation of PI3K/AKT/mTOR, and its role in controlling autophagy and associated apoptosis during the progression and metastasis of oral squamous type of malignancy (OSCC). In addition, we reviewed in detail the upstream activators and the downstream effectors of PI3K/AKT/mTOR signaling as potential therapeutic targets for oral cancer treatment.
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Affiliation(s)
- Peramaiyan Rajendran
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600 077, Tamil Nadu, India
| | - Ramya Sekar
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600 077, Tamil Nadu, India
- Department of Oral Pathology & Oral Microbiology, Meenakshi Ammal Dental College and Hospital, MAHER, Alapakkam Main Road, Maduravoyal, Chennai-600095, India
| | - Prabhu Shankar Dhayasankar
- Department of Oral and Maxillofacial Surgery, Meenakshi Ammal Dental College and Hospital, MAHER, Alapakkam Main Road, Maduravoyal, Chennai-600095, India
| | - Enas M Ali
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Cairo, 12613, Egypt
| | - Salaheldin Abdelraouf Abdelsalam
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Zoology, Faculty of Science, Assiut University, Assiut, 71515, Egypt
| | - Sabarinath Balaraman
- Department of Oral Pathology & Oral Microbiology, Meenakshi Ammal Dental College and Hospital, MAHER, Alapakkam Main Road, Maduravoyal, Chennai-600095, India
| | | | - Ashraf M. Metwally
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Basem M Abdallah
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
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10
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Göttig L, Jummer S, Staehler L, Groitl P, Karimi M, Blanchette P, Kosulin K, Branton PE, Schreiner S. The human adenovirus PI3K-Akt activator E4orf1 is targeted by the tumor suppressor p53. J Virol 2024; 98:e0170123. [PMID: 38451084 PMCID: PMC11019960 DOI: 10.1128/jvi.01701-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 01/13/2024] [Indexed: 03/08/2024] Open
Abstract
Human adenoviruses (HAdV) are classified as DNA tumor viruses due to their potential to mediate oncogenic transformation in non-permissive mammalian cells and certain human stem cells. To achieve transformation, the viral early proteins of the E1 and E4 regions must block apoptosis and activate proliferation: the former predominantly through modulating the cellular tumor suppressor p53 and the latter by activating cellular pro-survival and pro-metabolism protein cascades, such as the phosphoinositide 3-kinase (PI3K-Akt) pathway, which is activated by HAdV E4orf1. Focusing on HAdV-C5, we show that E4orf1 is necessary and sufficient to stimulate Akt activation through phosphorylation in H1299 cells, which is not only hindered but repressed during HAdV-C5 infection with a loss of E4orf1 function in p53-positive A549 cells. Contrary to other research, E4orf1 localized not only in the common, cytoplasmic PI3K-Akt-containing compartment, but also in distinct nuclear aggregates. We identified a novel inhibitory mechanism, where p53 selectively targeted E4orf1 to destabilize it, also stalling E4orf1-dependent Akt phosphorylation. Co-IP and immunofluorescence studies showed that p53 and E4orf1 interact, and since p53 is bound by the HAdV-C5 E3 ubiquitin ligase complex, we also identified E4orf1 as a novel factor interacting with E1B-55K and E4orf6 during infection; overexpression of E4orf1 led to less-efficient E3 ubiquitin ligase-mediated proteasomal degradation of p53. We hypothesize that p53 specifically subverts the pro-survival function of E4orf1-mediated PI3K-Akt activation to protect the cell from metabolic hyper-activation or even transformation.IMPORTANCEHuman adenoviruses (HAdV) are nearly ubiquitous pathogens comprising numerous subtypes that infect various tissues and organs. Among many encoded proteins that facilitate viral replication and subversion of host cellular processes, the viral E4orf1 protein has emerged as an intriguing yet under-investigated player in the complex interplay between the virus and its host. Nonetheless, E4orf1 has gained attention as a metabolism activator and oncogenic agent, while recent research is showing that E4orf1 may play a more important role in modulating the cellular pathways such as phosphoinositide 3-kinase-Akt-mTOR. Our study reveals a novel and general impact of E4orf1 on host mechanisms, providing a novel basis for innovative antiviral strategies in future therapeutic settings. Ongoing investigations of the cellular pathways modulated by HAdV are of great interest, particularly since adenovirus-based vectors actually serve as vaccine or gene vectors. HAdV constitute an ideal model system to analyze the underlying molecular principles of virus-induced tumorigenesis.
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Affiliation(s)
- Lilian Göttig
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Simone Jummer
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Luisa Staehler
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Peter Groitl
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Maryam Karimi
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Paola Blanchette
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Center, McGill University, Montreal, Quebec, Canada
| | - Karin Kosulin
- Molecular Microbiology, Children’s Cancer Research Institute, Vienna, Austria
| | - Philip E. Branton
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Center, McGill University, Montreal, Quebec, Canada
| | - Sabrina Schreiner
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
- Institute of Virology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence RESIST (Resolving Infection Susceptibility; EXC 2155), Freiburg, Germany
- Institute of Virology, Medical Center—University of Freiburg, Freiburg, Germany
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11
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Dehghani-Ghahnaviyeh S, Soylu C, Furet P, Velez-Vega C. Dissecting the Interaction Fingerprints and Binding Affinity of BYL719 Analogs Targeting PI3Kα. J Phys Chem B 2024; 128:1819-1829. [PMID: 38373112 DOI: 10.1021/acs.jpcb.3c06766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Phosphatidylinositol-3-kinase Alpha (PI3Kα) is a lipid kinase which regulates signaling pathways involved in cell proliferation. Dysregulation of these pathways promotes several human cancers, pushing for the development of anticancer drugs to target PI3Kα. One such medicinal chemistry campaign at Novartis led to the discovery of BYL719 (Piqray, Alpelicib), a PI3Kα inhibitor approved by the FDA in 2019 for treatment of HR+/HER2-advanced breast cancer with a PIK3CA mutation. Structure-based drug design played a key role in compound design and optimization throughout the discovery process. However, further characterization of potency drivers via structural dynamics and energetic analyses can be advantageous for ensuing PI3Kα programs. Here, our goal is to employ various in-silico techniques, including molecular simulations and machine learning, to characterize 14 ligands from the BYL719 analogs and predict their binding affinities. The structural insights from molecular simulations suggest that although the ligand-hinge interaction is the primary driver of ligand stability at the pocket, the R group positioning at C2 or C6 of pyridine/pyrimidine also plays a major role. Binding affinities predicted via thermodynamic integration (TI) are in good agreement with previously reported IC50s. Yet, computationally demanding techniques such as TI might not always be the most efficient approach for affinity prediction, as in our case study, fast high-throughput techniques were capable of classifying compounds as active or inactive, and one docking approach showed accuracy comparable to TI.
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Affiliation(s)
- Sepehr Dehghani-Ghahnaviyeh
- Novartis Institutes for BioMedical Research, 181 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Cihan Soylu
- Novartis Institutes for BioMedical Research, 181 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Pascal Furet
- Novartis Institutes for BioMedical Research, CH4002 Basel, Switzerland
| | - Camilo Velez-Vega
- Novartis Institutes for BioMedical Research, 181 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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12
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Qiu L, Yan Y, Zhong G, Hou Z, Ye Y, Lin J, Luo D. Hydromorphone hydrochloride preconditioning combined with postconditioning attenuates myocardial ischemia/reperfusion injury in rats by improving mitochondrial function and activating the PI3K/Akt signaling pathway. Chem Biol Drug Des 2024; 103:e14474. [PMID: 38342769 DOI: 10.1111/cbdd.14474] [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: 11/30/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/13/2024]
Abstract
Thrombolytic therapy or percutaneous coronary intervention for myocardial infarction often cause myocardial ischemia/reperfusion injury (MIRI) and poor prognosis of patients. This study aimed to explore the protective effect and potential mechanism of hydromorphone hydrochloride (HH) on MIRI. Fifty Sprague-Dawley male rats were randomly divided into Sham group, I/R group, HH-pre group, HH-post group, and HH-pre + post group. Except Sham group, MIRI models were established by ligating and relaxing the left anterior descending coronary artery, followed by tail vein injection of HH (0.3 μmol/L) 10 min before ligation (HH-pre group), 10 min after reperfusion (HH-post group), and twice at the above two time points (HH-pre + post group). After intervention, the cardiac function of rats was evaluated by echocardiography, and the levels of myocardial injury markers, oxidative stress indicators, and mitochondrial function indicators were detected. Next, the myocardial infarction area was evaluated by 2,3,5-triphenyltetrazolium chloride staining, mitochondrial biogenesis, and phosphoinositide 3 kinase (PI3K)/protein kinase B (Akt) signaling pathway by western blot. Compared with the I/R group, HH intervention improved cardiac function, decreased myocardial infarction area, reduced serum myocardial injury markers, alleviated oxidative stress, improved mitochondrial function, up-regulated mitochondrial biogenesis, and activated PI3K/Akt signaling pathway. Moreover, the HH-pre + post group was superior to the HH-pre and HH-post groups in the above aspects. Collectively, HH had protective effect on MIRI rats, and HH preconditioning combined with postconditioning showed optimal efficacy. Such efficacy may be achieved by promoting mitochondrial biogenesis to improve mitochondrial function and reduce oxidative stress, and activating the PI3K/Akt signaling pathway.
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Affiliation(s)
- Liuji Qiu
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, Guangdong, China
| | - Yan Yan
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, Guangdong, China
| | - Guocheng Zhong
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, Guangdong, China
| | - Zhiqi Hou
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, Guangdong, China
| | - Yongcai Ye
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, Guangdong, China
| | - Jiaying Lin
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, Guangdong, China
| | - Dexing Luo
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, Guangdong, China
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13
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De D, Ghosh G, Karmakar P. Sumoylation and phosphorylation of PTEN boosts and curtails autophagy respectively by influencing cell membrane localisation. Exp Cell Res 2024; 434:113872. [PMID: 38072303 DOI: 10.1016/j.yexcr.2023.113872] [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: 08/04/2023] [Revised: 11/30/2023] [Accepted: 12/03/2023] [Indexed: 12/17/2023]
Abstract
Autophagy is involved in the entirety of cellular survival, homeostasis and death which becomes more self-evident when its dysregulation is implicated in several pathological conditions. PTEN positively regulates autophagy and like other proteins undergo post-translational modifications. It is crucial to investigate the relationship between PTEN and autophagy as it is generally observed to be negligible in PTEN deficient cancer cells. Here, we have shown that such modifications of PTEN namely sumoylation and phosphorylation upregulates and downregulates autophagy respectively. Transfection of plasmid containing full length PTEN in PTEN-negative prostate cancer cell line PC3, induced autophagy on further starvation. When a sumoylation-deficient mutant of PTEN was transfected and cells were put under similar starvation, a decline in autophagy was observed. On the other hand, cells transfected with phosphorylation-deficient mutant of PTEN showed elevated expression of autophagy. Contrarily, transfection with phosphorylation-mimicking mutant caused reduced expression of autophagy. On further analysis, it was detected that PTEN's association with the plasma membrane was under positive and negative influence from its sumoylation and phosphorylation respectively. This association is integral as it is the foremost site for PTEN to oppose PI3K/AKT pathway and consequently upregulate autophagy. Thus, this study indicates that sumoylation and phosphorylation of PTEN can control autophagy via its cell membrane association.
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Affiliation(s)
- Debojyoti De
- Department of Life Science & Biotechnology, Jadavpur University, 188, Raja Subodh Chandra Mallick Road, Jadavpur, Kolkata, 700032, West Bengal, India.
| | - Ginia Ghosh
- Department of Life Science & Biotechnology, Jadavpur University, 188, Raja Subodh Chandra Mallick Road, Jadavpur, Kolkata, 700032, West Bengal, India.
| | - Parimal Karmakar
- Department of Life Science & Biotechnology, Jadavpur University, 188, Raja Subodh Chandra Mallick Road, Jadavpur, Kolkata, 700032, West Bengal, India.
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14
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Li P, Huang D, Gu X. Exploring the dual role of circRNA and PI3K/AKT pathway in tumors of the digestive system. Biomed Pharmacother 2023; 168:115694. [PMID: 37832407 DOI: 10.1016/j.biopha.2023.115694] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/30/2023] [Accepted: 10/09/2023] [Indexed: 10/15/2023] Open
Abstract
The interactions among circRNAs, the PI3K/AKT pathway, and their downstream effectors are intricately linked to their functional roles in tumorigenesis. Furthermore, the circRNAs/PI3K/AKT axis has been significantly implicated in the context of digestive system tumors. This axis is frequently abnormally activated in digestive cancers, including gastric cancer, colorectal cancer, pancreatic cancer, and others. Moreover, the overactivation of the circRNAs/PI3K/AKT axis promotes tumor cell proliferation, suppresses apoptosis, enhances invasive and metastatic capabilities, and contributes to drug resistance. In this regard, gaining crucial insights into the complex interaction between circRNAs and the PI3K/AKT pathway holds great potential for elucidating disease mechanisms, identifying diagnostic biomarkers, and designing targeted therapeutic interventions.
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Affiliation(s)
- Penghui Li
- Department of General Surgery, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang 471000, Henan, China
| | - Di Huang
- Department of Child Health Care, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan, China
| | - Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang 471000, Henan, China.
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15
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Khalil MI, Ali MM, Holail J, Houssein M. Growth or death? Control of cell destiny by mTOR and autophagy pathways. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 185:39-55. [PMID: 37944568 DOI: 10.1016/j.pbiomolbio.2023.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/08/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023]
Abstract
One of the central regulators of cell growth, proliferation, and metabolism is the mammalian target of rapamycin, mTOR, which exists in two structurally and functionally different complexes: mTORC1 and mTORC2; unlike m TORC2, mTORC1 is activated in response to the sufficiency of nutrients and is inhibited by rapamycin. mTOR complexes have critical roles not only in protein synthesis, gene transcription regulation, proliferation, tumor metabolism, but also in the regulation of the programmed cell death mechanisms such as autophagy and apoptosis. Autophagy is a conserved catabolic mechanism in which damaged molecules are recycled in response to nutrient starvation. Emerging evidence indicates that the mTOR signaling pathway is frequently activated in tumors. In addition, dysregulation of autophagy was associated with the development of a variety of human diseases, such as cancer and aging. Since mTOR can inhibit the induction of the autophagic process from the early stages of autophagosome formation to the late stage of lysosome degradation, the use of mTOR inhibitors to regulate autophagy could be considered a potential therapeutic option. The present review sheds light on the mTOR and autophagy signaling pathways and the mechanisms of regulation of mTOR-autophagy.
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Affiliation(s)
- Mahmoud I Khalil
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, 11072809, Lebanon; Molecular Biology Unit, Department of Zoology, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt.
| | - Mohamad M Ali
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, SE-751 23, Uppsala, Sweden.
| | - Jasmine Holail
- Department of Biochemistry and Molecular Medicine, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia; Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
| | - Marwa Houssein
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, 11072809, Lebanon.
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16
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Wang C, Han M, Li X, Lv J, Zhuang W, Xie L, Liu G, Saimaier K, Han S, Shi C, Hua Q, Zhang R, Jiang X, Wang G, Du C. TPN10475 alleviates concanavalin A-induced autoimmune hepatitis by limiting T cell development and function through inhibition of PI3K-AKT pathway. Int Immunopharmacol 2023; 125:111110. [PMID: 37883813 DOI: 10.1016/j.intimp.2023.111110] [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: 08/16/2023] [Revised: 10/15/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
Autoimmune hepatitis (AIH) is an inflammatory liver disease in which the autoimmune system instigates an attack on the liver, causing inflammation and liver injury, and its incidence has increased worldwide in recent years. The mouse model of acute hepatitis established by concanavalin A (Con A) is a typical and recognized mouse model for the study of T-cell-dependent liver injury. In this study, we aimed to investigate whether the artemisinin derivative TPN10475 could alleviate AIH and its possible mechanisms. TPN10475 effectively inhibited lymphocyte proliferation and IFN-γ+ T cells production in vitro, alleviated liver injury by decreasing infiltrating inflammatory T cells producing IFN-γ in the liver and peripheral immune tissues, and demonstrated that TPN10475 weakened the activation and function of T cells by inhibiting PI3K-AKT signaling pathway. These results suggested that TPN10475 may be a potential drug for the treatment of AIH, and the inhibition of PI3K-AKT signaling pathway may provide new ideas for the study of the pathogenesis of AIH.
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Affiliation(s)
- Chun Wang
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Mengyao Han
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Xinhang Li
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Jie Lv
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Wei Zhuang
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China; National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Ling Xie
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Guangyu Liu
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Kaidireya Saimaier
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Sanxing Han
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Changjie Shi
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Qiuhong Hua
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Ru Zhang
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Xiangrui Jiang
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China; CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia, Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Guiying Wang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, National Stem Cell Translational Resource Center, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
| | - Changsheng Du
- Putuo People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
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17
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Nayak V, Patra S, Singh KR, Ganguly B, Kumar DN, Panda D, Maurya GK, Singh J, Majhi S, Sharma R, Pandey SS, Singh RP, Kerry RG. Advancement in precision diagnosis and therapeutic for triple-negative breast cancer: Harnessing diagnostic potential of CRISPR-cas & engineered CAR T-cells mediated therapeutics. ENVIRONMENTAL RESEARCH 2023; 235:116573. [PMID: 37437865 DOI: 10.1016/j.envres.2023.116573] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 07/14/2023]
Abstract
Cancer is characterized by uncontrolled cell growth, disrupted regulatory pathways, and the accumulation of genetic mutations. These mutations across different types of cancer lead to disruptions in signaling pathways and alterations in protein expression related to cellular growth and proliferation. This review highlights the AKT signaling cascade and the retinoblastoma protein (pRb) regulating cascade as promising for novel nanotheranostic interventions. Through synergizing state-of-the-art gene editing tools like the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas system with nanomaterials and targeting AKT, there is potential to enhance cancer diagnostics significantly. Furthermore, the integration of modified CAR-T cells into multifunctional nanodelivery systems offers a promising approach for targeted cancer inhibition, including the eradication of cancer stem cells (CSCs). Within the context of highly aggressive and metastatic Triple-negative Breast Cancer (TNBC), this review specifically focuses on devising innovative nanotheranostics. For both pre-clinical and post-clinical TNBC detection, the utilization of the CRISPR-Cas system, guided by RNA (gRNA) and coupled with a fluorescent reporter specifically designed to detect TNBC's mutated sequence, could be promising. Additionally, a cutting-edge approach involving the engineering of TNBC-specific iCAR and syn-Notch CAR T-cells, combined with the co-delivery of a hybrid polymeric nano-liposome encapsulating a conditionally replicative adenoviral vector (CRAdV) against CSCs, could present an intriguing intervention strategy. This review thus paves the way for exciting advancements in the field of nanotheranostics for the treatment of TNBC and beyond.
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Affiliation(s)
- Vinayak Nayak
- Indian Council of Agricultural Research- National Institute on Foot and Mouth Disease- International Center for Foot and Mouth Disease, Bhubaneswar, Odisha, India
| | - Sushmita Patra
- Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi-Mumbai 410210, India
| | - Kshitij Rb Singh
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu, Japan.
| | - Bristy Ganguly
- Fish Health Management Division, ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar, Odisha, India
| | - Das Nishant Kumar
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India
| | - Deepak Panda
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India
| | - Ganesh Kumar Maurya
- Zoology Section, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Sanatan Majhi
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Shyam S Pandey
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu, Japan.
| | - Ravindra Pratap Singh
- Department of Biotechnology, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, India.
| | - Rout George Kerry
- PG Department of Biotechnology, Utkal University, Bhubaneswar, Odisha, India.
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18
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Desingu PA, Mishra S, Dindi L, Srinivasan S, Rajmani RS, Ravi V, Tamta AK, Raghu S, Murugasamy K, Pandit AS, Sundaresan NR. PARP1 inhibition protects mice against Japanese encephalitis virus infection. Cell Rep 2023; 42:113103. [PMID: 37676769 DOI: 10.1016/j.celrep.2023.113103] [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: 06/09/2021] [Revised: 05/20/2023] [Accepted: 08/22/2023] [Indexed: 09/09/2023] Open
Abstract
Japanese encephalitis (JE) is a vector-borne viral disease that causes acute encephalitis in children. Although vaccines have been developed against the JE virus (JEV), no effective antiviral therapy exists. Our study shows that inhibition of poly(ADP-ribose) polymerase 1 (PARP1), an NAD+-dependent (poly-ADP) ribosyl transferase, protects against JEV infection. Interestingly, PARP1 is critical for JEV pathogenesis in Neuro-2a cells and mice. Small molecular inhibitors of PARP1, olaparib, and 3-aminobenzamide (3-AB) significantly reduce clinical signs and viral load in the serum and brains of mice and improve survival. PARP1 inhibition confers protection against JEV infection by inhibiting autophagy. Mechanistically, upon JEV infection, PARP1 PARylates AKT and negatively affects its phosphorylation. In addition, PARP1 transcriptionally upregulates PTEN, the PIP3 phosphatase, negatively regulating AKT. PARP1-mediated AKT inactivation promotes autophagy and JEV pathogenesis by increasing the FoxO activity. Thus, our findings demonstrate PARP1 as a potential mediator of JEV pathogenesis that can be effectively targeted for treating JE.
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Affiliation(s)
- Perumal Arumugam Desingu
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India.
| | - Sneha Mishra
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Lavanya Dindi
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Shalini Srinivasan
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Raju S Rajmani
- Centre for Infectious Disease Research, Indian Institute of Science, Bengaluru 560012, India
| | - Venkatraman Ravi
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Ankit Kumar Tamta
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Sukanya Raghu
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Krishnega Murugasamy
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Anwit Shriniwas Pandit
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Nagalingam R Sundaresan
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India.
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19
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Smok-Kalwat J, Chmielewski G, Stando R, Sadowski J, Macek P, Kowalik A, Nowak-Ozimek E, Góźdź S. Next-Generation Sequencing-Based Analysis of Clinical and Pathological Features of PIK3CA-Mutated Breast Cancer. Diagnostics (Basel) 2023; 13:2887. [PMID: 37761256 PMCID: PMC10528120 DOI: 10.3390/diagnostics13182887] [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: 07/11/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) is a well-known oncogene with a high prevalence of mutation in breast cancer patients. The effect of the mutation is a deregulation in phosphatidylinositol 3-kinase-related pathways, and, consequently, in unrestricted cell growth and differentiation. With the advent of precision oncology, PIK3CA has emerged as a pivotal treatment target, culminating in the recent approval of alpelisib. Despite years of research on this genetic alteration, certain aspects of its influence on the prognosis of breast cancer remain ambiguous. The purpose of this analysis is to characterize the clinical picture of breast cancer patients with PIK3CA mutation in comparison to the PIK3CA-wild-type group. We examined 103 tumor samples from 100 breast cancer patients using a next-generation sequencing panel. Presence of the mutation was linked to an older age at diagnosis, a lower expression of Ki67 protein, a greater percentage of tumors expressing progesterone receptors, and a notably higher incidence of metastatic disease at presentation. No significant differences were identified in overall and progression-free survival between the two groups. Our findings enhance the understanding of how PIK3CA mutations shape the clinical and prognostic landscape for breast cancer patients.
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Affiliation(s)
- Jolanta Smok-Kalwat
- Department of Clinical Oncology, Holycross Cancer Center, 25-734 Kielce, Poland; (J.S.-K.); (S.G.)
| | - Grzegorz Chmielewski
- Department of Radiation Oncology, Holycross Cancer Center, 25-734 Kielce, Poland; (R.S.); (J.S.)
- Institute of Medical Sciences, Collegium Medicum, Jan Kochanowski University, 25-516 Kielce, Poland
| | - Rafał Stando
- Department of Radiation Oncology, Holycross Cancer Center, 25-734 Kielce, Poland; (R.S.); (J.S.)
| | - Jacek Sadowski
- Department of Radiation Oncology, Holycross Cancer Center, 25-734 Kielce, Poland; (R.S.); (J.S.)
| | - Paweł Macek
- Department of Oncology, Institute of Health Sciences, Collegium Medicum, Jan Kochanowski University, 25-516 Kielce, Poland;
- Department of Epidemiology and Cancer Control, Holycross Cancer Centre, 25-734 Kielce, Poland
| | - Artur Kowalik
- Department of Molecular Diagnostics, Holycross Cancer Centre, 25-734 Kielce, Poland; (A.K.); (E.N.-O.)
- Division of Medical Biology, Institute of Biology, Jan Kochanowski University, 25-406 Kielce, Poland
| | - Ewelina Nowak-Ozimek
- Department of Molecular Diagnostics, Holycross Cancer Centre, 25-734 Kielce, Poland; (A.K.); (E.N.-O.)
| | - Stanisław Góźdź
- Department of Clinical Oncology, Holycross Cancer Center, 25-734 Kielce, Poland; (J.S.-K.); (S.G.)
- Department of Oncology, Institute of Health Sciences, Collegium Medicum, Jan Kochanowski University, 25-516 Kielce, Poland;
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20
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Komarla A, Dufresne S, Towers CG. Recent Advances in the Role of Autophagy in Endocrine-Dependent Tumors. Endocr Rev 2023; 44:629-646. [PMID: 36631217 PMCID: PMC10335171 DOI: 10.1210/endrev/bnad001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/31/2022] [Accepted: 01/10/2023] [Indexed: 01/13/2023]
Abstract
Autophagy plays a complex role in several cancer types, including endocrine-dependent cancers, by fueling cellular metabolism and clearing damaged substrates. This conserved recycling process has a dual function across tumor types where it can be tumor suppressive at early stages but tumor promotional in established disease. This review highlights the controversial roles of autophagy in endocrine-dependent tumors regarding cancer initiation, tumorigenesis, metastasis, and treatment response. We summarize clinical trial results thus far and highlight the need for additional mechanistic, preclinical, and clinical studies in endocrine-dependent tumors, particularly in breast cancer and prostate cancer.
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Affiliation(s)
- Anvita Komarla
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
- The Cell and Molecular Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Suzanne Dufresne
- The Cell and Molecular Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Christina G Towers
- The Cell and Molecular Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
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21
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Lone BA, Siraj F, Sharma I, Verma S, Karna SKL, Ahmad F, Nagar P, Sachidanandan C, Pokharel YR. Non-POU Domain-Containing Octomer-Binding (NONO) protein expression and stability promotes the tumorigenicity and activation of Akt/MAPK/β-catenin pathways in human breast cancer cells. Cell Commun Signal 2023; 21:157. [PMID: 37370134 PMCID: PMC10294335 DOI: 10.1186/s12964-023-01179-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Breast cancer is one of the most common cancers with a high mortality rate, underscoring the need to identify new therapeutic targets. Here we report that non-POU domain-containing octamer-binding (NONO) protein is overexpressed in breast cancer and validated the interaction of the WW domain of PIN1 with c-terminal threonine-proline (thr-pro) motifs of NONO. The interaction of NONO with PIN1 increases the stability of NONO by inhibiting its proteasomal degradation, and this identifies PIN1 as a positive regulator of NONO in promoting breast tumor development. Functionally, silencing of NONO inhibits the growth, survival, migration, invasion, epithelial to mesenchymal transition (EMT), and stemness of breast cancer cells in vitro. A human metastatic breast cancer cell xenograft was established in transparent zebrafish (Danio rerio) embryos to study the metastatic inability of NONO-silenced breast cancer cells in vivo. Mechanistically, NONO depletion promotes the expression of the PDL1 cell-surface protein in breast cancer cells. The identification of novel interactions of NONO with c-Jun and β-catenin proteins and activation of the Akt/MAPK/β-catenin signaling suggests that NONO is a novel regulator of Akt/MAPK/β-catenin signaling pathways. Taken together, our results indicated an essential role of NONO in the tumorigenicity of breast cancer and could be a potential target for anti-cancerous drugs. Video Abstract.
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Affiliation(s)
- Bilal Ahmad Lone
- Cancer Biology Laboratory, Faculty of Life Science and Biotechnology, South Asian University, Rajpur Road, Maidangarhi, New Delhi, 110068, India
| | - Fouzia Siraj
- National Institute of Pathology, Safdarjung Hospital Campus, Room No.610, 6th Floor, Ansari Nagar, New Delhi, 110029, India
| | - Ira Sharma
- National Institute of Pathology, Safdarjung Hospital Campus, Room No.610, 6th Floor, Ansari Nagar, New Delhi, 110029, India
| | - Shweta Verma
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Gaziabad, 201002, India
| | - Shibendra Kumar Lal Karna
- Cancer Biology Laboratory, Faculty of Life Science and Biotechnology, South Asian University, Rajpur Road, Maidangarhi, New Delhi, 110068, India
| | - Faiz Ahmad
- Cancer Biology Laboratory, Faculty of Life Science and Biotechnology, South Asian University, Rajpur Road, Maidangarhi, New Delhi, 110068, India
| | - Preeti Nagar
- Cancer Biology Laboratory, Faculty of Life Science and Biotechnology, South Asian University, Rajpur Road, Maidangarhi, New Delhi, 110068, India
| | - Chetana Sachidanandan
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, 110025, India
- Academy of Scientific and Innovative Research (AcSIR), Gaziabad, 201002, India
| | - Yuba Raj Pokharel
- Cancer Biology Laboratory, Faculty of Life Science and Biotechnology, South Asian University, Rajpur Road, Maidangarhi, New Delhi, 110068, India.
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22
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Mirza Z, Ansari MS, Iqbal MS, Ahmad N, Alganmi N, Banjar H, Al-Qahtani MH, Karim S. Identification of Novel Diagnostic and Prognostic Gene Signature Biomarkers for Breast Cancer Using Artificial Intelligence and Machine Learning Assisted Transcriptomics Analysis. Cancers (Basel) 2023; 15:3237. [PMID: 37370847 DOI: 10.3390/cancers15123237] [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: 05/15/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Breast cancer (BC) is one of the most common female cancers. Clinical and histopathological information is collectively used for diagnosis, but is often not precise. We applied machine learning (ML) methods to identify the valuable gene signature model based on differentially expressed genes (DEGs) for BC diagnosis and prognosis. METHODS A cohort of 701 samples from 11 GEO BC microarray datasets was used for the identification of significant DEGs. Seven ML methods, including RFECV-LR, RFECV-SVM, LR-L1, SVC-L1, RF, and Extra-Trees were applied for gene reduction and the construction of a diagnostic model for cancer classification. Kaplan-Meier survival analysis was performed for prognostic signature construction. The potential biomarkers were confirmed via qRT-PCR and validated by another set of ML methods including GBDT, XGBoost, AdaBoost, KNN, and MLP. RESULTS We identified 355 DEGs and predicted BC-associated pathways, including kinetochore metaphase signaling, PTEN, senescence, and phagosome-formation pathways. A hub of 28 DEGs and a novel diagnostic nine-gene signature (COL10A, S100P, ADAMTS5, WISP1, COMP, CXCL10, LYVE1, COL11A1, and INHBA) were identified using stringent filter conditions. Similarly, a novel prognostic model consisting of eight-gene signatures (CCNE2, NUSAP1, TPX2, S100P, ITM2A, LIFR, TNXA, and ZBTB16) was also identified using disease-free survival and overall survival analysis. Gene signatures were validated by another set of ML methods. Finally, qRT-PCR results confirmed the expression of the identified gene signatures in BC. CONCLUSION The ML approach helped construct novel diagnostic and prognostic models based on the expression profiling of BC. The identified nine-gene signature and eight-gene signatures showed excellent potential in BC diagnosis and prognosis, respectively.
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Affiliation(s)
- Zeenat Mirza
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Science, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Md Shahid Ansari
- Department of Clinical Data Analytics, Max Super Speciality Hospital, Saket, New Delhi 110017, India
| | - Md Shahid Iqbal
- Department of Statistics and Computer Applications, Tilka Manjhi Bhagalpur University, Bhagalpur 812007, India
| | - Nesar Ahmad
- Department of Statistics and Computer Applications, Tilka Manjhi Bhagalpur University, Bhagalpur 812007, India
| | - Nofe Alganmi
- Computer Science Department, Faculty of Computing and Information Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Centre of Artificial Intelligence in Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Haneen Banjar
- Computer Science Department, Faculty of Computing and Information Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Centre of Artificial Intelligence in Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed H Al-Qahtani
- Department of Medical Laboratory Science, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sajjad Karim
- Department of Medical Laboratory Science, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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23
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Wu J, Meng F, Ran D, Song Y, Dang Y, Lai F, Yang L, Deng M, Song Y, Zhu J. The Metabolism and Immune Environment in Diffuse Large B-Cell Lymphoma. Metabolites 2023; 13:734. [PMID: 37367892 DOI: 10.3390/metabo13060734] [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: 03/21/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023] Open
Abstract
Cells utilize different metabolic processes to maintain their growth and differentiation. Tumor cells have made some metabolic changes to protect themselves from malnutrition. These metabolic alterations affect the tumor microenvironment and macroenvironment. Developing drugs targeting these metabolic alterations could be a good direction. In this review, we briefly introduce metabolic changes/regulations of the tumor macroenvironment and microenvironment and summarize potential drugs targeting the metabolism in diffuse large B-cell lymphoma.
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Affiliation(s)
- Jianbo Wu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing 100142, China
- Peking University International Cancer Institute, Health Science Center, Peking University, Beijing 100191, China
| | - Fuqing Meng
- School of Basic Medical Sciences, Health Science Center, Peking University, Beijing 100191, China
| | - Danyang Ran
- School of Basic Medical Sciences, Health Science Center, Peking University, Beijing 100191, China
| | - Yalong Song
- Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming 650500, China
| | - Yunkun Dang
- Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming 650500, China
| | - Fan Lai
- Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming 650500, China
| | - Longyan Yang
- Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China
| | - Mi Deng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing 100142, China
- Peking University International Cancer Institute, Health Science Center, Peking University, Beijing 100191, China
- School of Basic Medical Sciences, Health Science Center, Peking University, Beijing 100191, China
| | - Yuqin Song
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Jun Zhu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing 100142, China
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24
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Czegle I, Huang C, Soria PG, Purkiss DW, Shields A, Wappler-Guzzetta EA. The Role of Genetic Mutations in Mitochondrial-Driven Cancer Growth in Selected Tumors: Breast and Gynecological Malignancies. Life (Basel) 2023; 13:996. [PMID: 37109525 PMCID: PMC10145875 DOI: 10.3390/life13040996] [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: 12/28/2022] [Revised: 03/15/2023] [Accepted: 03/31/2023] [Indexed: 04/29/2023] Open
Abstract
There is an increasing understanding of the molecular and cytogenetic background of various tumors that helps us better conceptualize the pathogenesis of specific diseases. Additionally, in many cases, these molecular and cytogenetic alterations have diagnostic, prognostic, and/or therapeutic applications that are heavily used in clinical practice. Given that there is always room for improvement in cancer treatments and in cancer patient management, it is important to discover new therapeutic targets for affected individuals. In this review, we discuss mitochondrial changes in breast and gynecological (endometrial and ovarian) cancers. In addition, we review how the frequently altered genes in these diseases (BRCA1/2, HER2, PTEN, PIK3CA, CTNNB1, RAS, CTNNB1, FGFR, TP53, ARID1A, and TERT) affect the mitochondria, highlighting the possible associated individual therapeutic targets. With this approach, drugs targeting mitochondrial glucose or fatty acid metabolism, reactive oxygen species production, mitochondrial biogenesis, mtDNA transcription, mitophagy, or cell death pathways could provide further tailored treatment.
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Affiliation(s)
- Ibolya Czegle
- Department of Internal Medicine and Haematology, Semmelweis University, H-1085 Budapest, Hungary
| | - Chelsea Huang
- Department of Pathology and Laboratory Medicine, Loma Linda University Health, Loma Linda, CA 92354, USA
| | - Priscilla Geraldine Soria
- Department of Pathology and Laboratory Medicine, Loma Linda University Health, Loma Linda, CA 92354, USA
| | - Dylan Wesley Purkiss
- Department of Pathology and Laboratory Medicine, Loma Linda University Health, Loma Linda, CA 92354, USA
| | - Andrea Shields
- Department of Pathology and Laboratory Medicine, Loma Linda University Health, Loma Linda, CA 92354, USA
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25
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Qu M, Chen M, Gong W, Huo S, Yan Q, Yao Q, Lai Y, Chen D, Wu X, Xiao G. Pip5k1c Loss in Chondrocytes Causes Spontaneous Osteoarthritic Lesions in Aged Mice. Aging Dis 2023; 14:502-514. [PMID: 37008048 PMCID: PMC10017150 DOI: 10.14336/ad.2022.0828] [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: 06/01/2022] [Accepted: 08/28/2022] [Indexed: 11/18/2022] Open
Abstract
Osteoarthritis (OA) is the most common degenerative joint disease affecting the older populations globally. Phosphatidylinositol-4-phosphate 5-kinase type-1 gamma (Pip5k1c), a lipid kinase catalyzing the synthesis of phospholipid phosphatidylinositol 4,5-bisphosphate (PIP2), is involved in various cellular processes, such as focal adhesion (FA) formation, cell migration, and cellular signal transduction. However, whether Pip5k1c plays a role in the pathogenesis of OA remains unclear. Here we show that inducible deletion of Pip5k1c in aggrecan-expressing chondrocytes (cKO) causes multiple spontaneous OA-like lesions, including cartilage degradation, surface fissures, subchondral sclerosis, meniscus deformation, synovial hyperplasia, and osteophyte formation in aged (15-month-old) mice, but not in adult (7-month-old) mice. Pip5k1c loss promotes extracellular matrix (ECM) degradation, chondrocyte hypertrophy and apoptosis, and inhibits chondrocyte proliferation in the articular cartilage of aged mice. Pip5k1c loss dramatically downregulates the expressions of several key FA proteins, including activated integrin β1, talin, and vinculin, and thus impairs the chondrocyte adhesion and spreading on ECM. Collectively, these findings suggest that Pip5k1c expression in chondrocytes plays a critical role in maintaining articular cartilage homeostasis and protecting against age-related OA.
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Affiliation(s)
- Minghao Qu
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
| | - Mingjue Chen
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
| | - Weiyuan Gong
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
| | - Shaochuan Huo
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
- Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China.
| | - Qinnan Yan
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
| | - Qing Yao
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
| | - Yumei Lai
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA.
| | - Di Chen
- Research Center for Human Tissues and Organs Degeneration, Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Xiaohao Wu
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Southern University of Science and Technology, Shenzhen, China.
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26
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Vidotto T, Melo CM, Lautert-Dutra W, Chaves LP, Reis RB, Squire JA. Pan-cancer genomic analysis shows hemizygous PTEN loss tumors are associated with immune evasion and poor outcome. Sci Rep 2023; 13:5049. [PMID: 36977733 PMCID: PMC10050165 DOI: 10.1038/s41598-023-31759-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
In tumors, somatic mutations of the PTEN suppressor gene are associated with advanced disease, chemotherapy resistance, and poor survival. PTEN loss of function may occur by inactivating mutation, by deletion, either affecting one copy (hemizygous loss) leading to reduced gene expression or loss of both copies (homozygous) with expression absent. Various murine models have shown that minor reductions in PTEN protein levels strongly influence tumorigenesis. Most PTEN biomarker assays dichotomize PTEN (i.e. presence vs. absence) ignoring the role of one copy loss. We performed a PTEN copy number analysis of 9793 TCGA cases from 30 different tumor types. There were 419 (4.28%) homozygous and 2484 (25.37%) hemizygous PTEN losses. Hemizygous deletions led to reduced PTEN gene expression, accompanied by increased levels of instability and aneuploidy across tumor genomes. Outcome analysis of the pan-cancer cohort showed that losing one copy of PTEN reduced survival to comparable levels as complete loss, and was associated with transcriptomic changes controlling immune response and the tumor microenvironment. Immune cell abundances were significantly altered for PTEN loss, with changes in head and neck, cervix, stomach, prostate, brain, and colon more evident in hemizygous loss tumors. These data suggest that reduced expression of PTEN in tumors with hemizygous loss leads to tumor progression and influences anticancer immune response pathways.
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Affiliation(s)
- T Vidotto
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C M Melo
- Department of Genetics, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - W Lautert-Dutra
- Department of Genetics, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - L P Chaves
- Department of Genetics, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - R B Reis
- Division of Urology, Department of Surgery and Anatomy, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - J A Squire
- Department of Genetics, Medicine School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Canada.
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27
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Cao S, Zhang Y, Jiang H, Hou X, Wang W. Structural insight into TIPE1 functioning as a lipid transfer protein. J Biomol Struct Dyn 2023; 41:14049-14062. [PMID: 36898854 DOI: 10.1080/07391102.2023.2187641] [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: 11/28/2022] [Accepted: 01/30/2023] [Indexed: 03/12/2023]
Abstract
As a member of the tumor necrosis factor-α-induced protein 8 (TNFAIP8/TIPE) family, TIPE1 has been found to be associated with many cellular signaling pathways in regulating apoptosis, autophagy, and tumorigenesis. However, the position of TIPE1 in the signaling network remains elusive. Here we present the crystal structure of zebrafish TIPE1 in complex with phosphatidylethanolamine (PE) at a resolution of 1.38 Å. By comparison with structures of other three TIPE family proteins, a universal phospholipid-binding mode was proposed. Namely, the hydrophobic cavity binds to fatty acid tails, while 'X-R-R' triad nearby the entrance of cavity recognizes the phosphate group head. Using molecular dynamics (MD) simulations, we further elaborated the mechanism of how the lysine-rich N-terminal domain assisting TIPE1 to favorably bind to phosphatidylinositol (PI). Beside small molecule substrate, we identified Gαi3 as a direct-binding partner of TIPE1 using GST pull-down assay and size-exclusion chromatography. Analyses of key-residue mutations and predicted complex structure revealed that the binding mode of TIPE1 to Gαi3 could be non-canonical. In summary, our findings narrowed down TIPE1's position in Gαi3-related and PI-inducing signaling pathways.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sujian Cao
- Advanced Medical Research Institute, Interventional Medicine Department, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- The GBA National Institute for Nanotechnology Innovation, Guangzhou, China
| | - Ye Zhang
- Advanced Medical Research Institute, Interventional Medicine Department, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | | | - Xuben Hou
- School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei Wang
- Advanced Medical Research Institute, Interventional Medicine Department, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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28
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Nowwarote N, Osathanon T, Fournier BPJ, Theerapanon T, Yodsanga S, Kamolratanakul P, Porntaveetus T, Shotelersuk V. PTEN regulates proliferation and osteogenesis of dental pulp cells and adipogenesis of human adipose-derived stem cells. Oral Dis 2023; 29:735-746. [PMID: 34558757 DOI: 10.1111/odi.14030] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/08/2021] [Accepted: 09/18/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To investigate the role of phosphatase and tensin homolog (PTEN) in dental pulp cells (hDPs) and adipose-derived mesenchymal stem cells (hADSCs). MATERIALS AND METHODS Genetic variant was identified with exome sequencing. The hDPs isolated from a patient with Cowden syndrome were investigated for their proliferation, osteogenesis, adipogenesis, and gene expression compared with controls. The normal hDPs and hADSCs were treated with the PTEN inhibitor, VO-OHpic trihydrate (VOT), to investigate the effect of PTEN inhibition. RESULTS A heterozygous nonsense PTEN variant, c.289C>T (p.Gln97*), was identified in the Cowden patient's blood and intraoral lipomas. The mutated hDPs showed significantly decreased proliferation, but significantly upregulated RUNX2 and OSX expression and mineralization, indicating enhanced osteogenic ability in mutated cells. The normal hDPs treated with VOT showed the decreases in proliferation, colony formation, osteogenic marker genes, alkaline phosphatase activity, and mineral deposition, suggesting that PTEN inhibition diminishes proliferation and osteogenic potential of hDPs. Regarding adipogenesis, the VOT-treated hADSCs showed a reduced number of cells containing lipid droplets, suggesting that PTEN inhibition might compromise adipogenic ability of hADSCs. CONCLUSIONS PTEN regulates proliferation, enhances osteogenesis of hDPs, and induces adipogenesis of hADSCs. The gain-of-function PTEN variant, p.Gln97*, enhances osteogenic ability of PTEN in hDPs.
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Affiliation(s)
- Nunthawan Nowwarote
- Dental Stem Cell Biology Research Unit and Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Centre de Recherche des Cordeliers, Universite de Paris, Sorbonne Universite, Paris, France.,Dental Faculty Garanciere, Oral Biology Department, Universite de Paris, Paris, France
| | - Thanaphum Osathanon
- Dental Stem Cell Biology Research Unit and Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Benjamin P J Fournier
- Centre de Recherche des Cordeliers, Universite de Paris, Sorbonne Universite, Paris, France.,Dental Faculty Garanciere, Oral Biology Department, Universite de Paris, Paris, France
| | - Thanakorn Theerapanon
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Somchai Yodsanga
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Paksinee Kamolratanakul
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Thantrira Porntaveetus
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Vorasuk Shotelersuk
- Center of Excellence for Medical Genomics, Medical Genomics Cluster, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Excellence Center for Genomics and Precision Medicine, King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok, Thailand
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29
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Agarwal A, Kansal V, Farooqi H, Singh VK, Prasad R. Differentially deregulated microRNAs contribute to ultraviolet radiation-induced photocarcinogenesis through immunomodulation: An-analysis of microRNAs expression profiling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.24.529976. [PMID: 36909651 PMCID: PMC10002698 DOI: 10.1101/2023.02.24.529976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
MicroRNAs (miRNAs) are short non-coding RNA molecules (18-25 nucleotides) that regulate several fundamental biological processes. Emerging evidence has shown more than 1500 miRNAs functions in the cell cycle, proliferation, apoptosis, oxidative stress, immune response, DNA damage, and epigenetics alterations. miRNAs are bidirectionally in nature and act as a tumor suppressor and as an oncogene through crosstalk between tumor cells and immune cells. Although the roles of miRNAs in several cancers are well studied, little is known about ultraviolet B (UVB) radiation-induced skin cancer. Here, we performed a comprehensive screening of 1281 miRNAs in tumor tissues and compared their expression with normal skin. Our results demonstrate that the expression levels of 587 miRNAs were altered in tumor tissues compared to their expression in normal skin. The expression of 337 miRNAs was upregulated from 1.5-12 folds, while the expression of 250 miRNAs was downregulated up to 1.5-10 folds in tumors. Further, intraperitoneal injection of a mimic of down-regulated miR-15b (30nM) and an inhibitor of upregulated miR-133a (20nM) protect UVB-induced suppression of contact hypersensitivity (CHS) response. In conclusion, we identified a network of altered miRNAs in tumors that can serve as prognostic biomarkers and therapeutic targets to manage photocarcinogenesis effectively.
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Affiliation(s)
- Anshu Agarwal
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL-35294, USA
- Deptartment of Zoology, Agra Collage, Agra-282001, India
- Department of Biotechnology, Hamdard University, New Delhi-110062, India
| | - Vikash Kansal
- Department of Otolaryngology, Emory University, Atlanta, GA 30322, USA
| | - Humaira Farooqi
- Department of Biotechnology, Hamdard University, New Delhi-110062, India
| | | | - Ram Prasad
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL-35294, USA
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30
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Wijayaratna D, Ratnayake K, Ubeysinghe S, Kankanamge D, Tennakoon M, Karunarathne A. The spatial distribution of GPCR and Gβγ activity across a cell dictates PIP3 dynamics. Sci Rep 2023; 13:2771. [PMID: 36797332 PMCID: PMC9935898 DOI: 10.1038/s41598-023-29639-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Phosphatidylinositol (3,4,5) trisphosphate (PIP3) is a plasma membrane-bound signaling phospholipid involved in many cellular signaling pathways that control crucial cellular processes and behaviors, including cytoskeleton remodeling, metabolism, chemotaxis, and apoptosis. Therefore, defective PIP3 signaling is implicated in various diseases, including cancer, diabetes, obesity, and cardiovascular diseases. Upon activation by G protein-coupled receptors (GPCRs) or receptor tyrosine kinases (RTKs), phosphoinositide-3-kinases (PI3Ks) phosphorylate phosphatidylinositol (4,5) bisphosphate (PIP2), generating PIP3. Though the mechanisms are unclear, PIP3 produced upon GPCR activation attenuates within minutes, indicating a tight temporal regulation. Our data show that subcellular redistributions of G proteins govern this PIP3 attenuation when GPCRs are activated globally, while localized GPCR activation induces sustained subcellular PIP3. Interestingly the observed PIP3 attenuation was Gγ subtype-dependent. Considering distinct cell-tissue-specific Gγ expression profiles, our findings not only demonstrate how the GPCR-induced PIP3 response is regulated depending on the GPCR activity gradient across a cell, but also show how diversely cells respond to spatial and temporal variability of external stimuli.
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Affiliation(s)
- Dhanushan Wijayaratna
- grid.267337.40000 0001 2184 944XDepartment of Chemistry and Biochemistry, The University of Toledo, Toledo, OH 43606 USA ,grid.262962.b0000 0004 1936 9342Department of Chemistry, Saint Louis University, 3501 Laclede Avenue, Saint Louis, MO 63103 USA
| | - Kasun Ratnayake
- grid.267337.40000 0001 2184 944XDepartment of Chemistry and Biochemistry, The University of Toledo, Toledo, OH 43606 USA
| | - Sithurandi Ubeysinghe
- grid.267337.40000 0001 2184 944XDepartment of Chemistry and Biochemistry, The University of Toledo, Toledo, OH 43606 USA ,grid.262962.b0000 0004 1936 9342Department of Chemistry, Saint Louis University, 3501 Laclede Avenue, Saint Louis, MO 63103 USA
| | - Dinesh Kankanamge
- grid.267337.40000 0001 2184 944XDepartment of Chemistry and Biochemistry, The University of Toledo, Toledo, OH 43606 USA ,grid.4367.60000 0001 2355 7002Department of Anesthesiology, Washington University School of Medicine, Saint Louis, MO 63110 USA
| | - Mithila Tennakoon
- grid.267337.40000 0001 2184 944XDepartment of Chemistry and Biochemistry, The University of Toledo, Toledo, OH 43606 USA ,grid.262962.b0000 0004 1936 9342Department of Chemistry, Saint Louis University, 3501 Laclede Avenue, Saint Louis, MO 63103 USA
| | - Ajith Karunarathne
- Department of Chemistry and Biochemistry, The University of Toledo, Toledo, OH, 43606, USA. .,Department of Chemistry, Saint Louis University, 3501 Laclede Avenue, Saint Louis, MO, 63103, USA.
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Wang J, Zhang S, Zhang J, Zhang Z, Ma Q, Fu W, Chen X, Zhao D, Zhao M, Di C, Xie X. A novel PTEN mutant caused by polymorphism in cis-regulatory elements is involved in chemosensitivity in breast cancer. Am J Cancer Res 2023; 13:86-104. [PMID: 36777516 PMCID: PMC9906080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/27/2022] [Indexed: 02/14/2023] Open
Abstract
Phosphatase and tensin homolog (PTEN) is one of the most important tumor suppressor genes. Although studies have shown the association between cancer and genetic polymorphisms of PTEN, the underlying molecular mechanisms of breast cancer (BC) chemosensitivity that results from PTEN polymorphism is still unclear. This study aims to investigate potential links between PTEN polymorphisms in cis-regulatory elements and BC chemosensitivity in the Chinese population. A total of 172 BC patients who received neoadjuvant chemotherapy were included in the study, including 104 chemosensitive cases and 68 chemoresistant cases. The results showed a significant association between the rs786204926 polymorphism and BC chemosensitivity. Logistic multivariate regression analysis showed that age, lymph node metastasis, and the rs786204926 genotype were risk factors for BC chemoresistance. The G allele of rs786204926 is more prone to increasing the risk of chemosensitivity in BC. Additionally, analysis using Alamut Visual showed a preference of the G allele of rs786204926 to produce a novel PTEN mutant with an insertion of 18 bases from intron 4. While the transcriptional level of PTEN remained similar in chemosensitivity and chemoresistant samples, its protein level changed significantly. Interestingly, there were significant differences in both transcription and protein levels of the novel PTEN mutant between the two groups. Furthermore, we found that the mutant was more susceptible to dephosphorylation compared with wildtype PTEN, leading to chemosensitivity through the PI3K-AKT signaling pathway. These findings indicate that novel PTEN mutants caused by polymorphisms in cis-regulatory elements may be involved in BC chemosensitivity.
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Affiliation(s)
- Jing Wang
- School of Basic Medical Sciences, Lanzhou UniversityLanzhou 730000, Gansu, China,Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of SciencesLanzhou 730000, Gansu, China
| | - Shasha Zhang
- School of Basic Medical Sciences, Lanzhou UniversityLanzhou 730000, Gansu, China
| | - Jiaxin Zhang
- School of Biological and Pharmaceutical Engineering, Lanzhou Jiaotong UniversityLanzhou 730070, Gansu, China
| | - Zhongliang Zhang
- Oncology Department, The First People’s Hospital of Lanzhou CityLanzhou 730000, Gansu, China
| | - Qinglong Ma
- School of Basic Medical Sciences, Lanzhou UniversityLanzhou 730000, Gansu, China
| | - Wenkang Fu
- The First Clinical Medical School of Lanzhou UniversityLanzhou 730000, Gansu, China
| | - Xiaohua Chen
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of SciencesLanzhou 730000, Gansu, China,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of SciencesLanzhou 730000, Gansu, China
| | - Dapeng Zhao
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of SciencesLanzhou 730000, Gansu, China,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of SciencesLanzhou 730000, Gansu, China
| | - Meie Zhao
- School of Basic Medical Sciences, Lanzhou UniversityLanzhou 730000, Gansu, China
| | - Cuixia Di
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of SciencesLanzhou 730000, Gansu, China,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of SciencesLanzhou 730000, Gansu, China
| | - Xiaodong Xie
- School of Basic Medical Sciences, Lanzhou UniversityLanzhou 730000, Gansu, China
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Cheng X, Huang Z, Pan A, Long D. ORLNC1 Suppresses Cell Growth in HER2-Positive Breast Cancer via miRNA-296 Sponging. Curr Mol Med 2023; 23:289-299. [PMID: 35658886 DOI: 10.2174/1566524022666220603113550] [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: 02/23/2022] [Revised: 03/08/2022] [Accepted: 03/17/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Accumulating research has demonstrated that aberrant levels of long noncoding RNAs (LncRNAs) are related to cancer progression. The effects of ORLNC1 in HER2+ breast cancer have yet to be explored. METHODS Real-time PCR was used to examine the expression of LncRNA ORLNC1 in HER+ breast cancer. CCK-8, wound healing and cell invasion assays were used to examine the effect of LncRNA ORLNC1 on HER+ breast cancer cells. Luciferase reporter assay was utilized to determine the regulatory relationship between LncRNA ORLNC1 and miR-296. Western blotting was used to measure the expression of PTEN. Xenograft mouse model was used to examine the effect of LncRNA ORLNC1 on tumor progression in vivo. RESULTS In this study, our findings revealed downregulation of ORLNC1 in HER2+ breast cancer specimens and cell lines. Low levels of ORLNC1 were related to poor prognosis and advanced cancer stage. Using gain- and loss-of-function assays, the ability of these tumor cells to proliferate was found to be inhibited by ORLNC1 in vitro and in vivo. Further analyses revealed that miR-296/PTEN axis is directly targeted by ORLNC1. Consequently, over-expression of miR-296 efficiently abrogated the upregulation of PTEN induced by ORLNC1, suggesting that ORLNC1 positively regulates PTEN expression by competitively binding to miR-296. CONCLUSION Our results indicate that lncRNA ORLNC1 acts as a tumor suppressor by regulating the miR-296/PTEN axis in HER2+ breast cancer.
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Affiliation(s)
- Xueyuan Cheng
- Department of General Surgery, Beihai People's Hospital, Beihai, Guangxi, 536000, China
| | - Zhong Huang
- Department of General Surgery, Beihai People's Hospital, Beihai, Guangxi, 536000, China
| | - Anchao Pan
- Department of Gastrointestinal Surgery, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530199, China
| | - Di Long
- Department of Gastrointestinal Surgery, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530199, China
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Min X, Zhang X, Wang S, Kim KM. Activation of PKCβII through nuclear trafficking guided by βγ subunits of trimeric G protein and 14-3-3ε. Life Sci 2022; 312:121245. [PMID: 36503900 DOI: 10.1016/j.lfs.2022.121245] [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: 08/24/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
AIMS Conventional members of protein kinase C (PKC) family, including PKCβII, are constitutively phosphorylated on three major motifs and located in the cytosol in a primed state. In response to cellular stimuli, PKCβII is activated through inducible phosphorylation and Mdm2-mediated ubiquitination. In this study, we aimed to identify the activation mechanism of PKCβII, focusing on the signaling cascade that regulate the phosphorylation and ubiquitination. MATERIALS AND METHODS Loss-of-function approaches and mutants of PDK1/PKCβII that display different regulatory properties were used to identify the cellular components and processes responsible for endocytosis. KEY FINDINGS Phorbol 12-myristate 13-acetate (PMA)-induced phosphorylation and ubiquitination of PKCβII, which are needed for its translocation to the plasma membrane, required the presence of both Gβγ and 14-3-3ε. Gβγ and 14-3-3ε mediated the constitutive phosphorylation of PKCβII by scaffolding PI3K and PDK1 in the cytosol, which is an inactive but required state for the activation of PKCβII by subsequent signals. In response to PMA treatment, the signaling complex translocated to the nucleus with dissociation of PI3K from it. Thereafter, PDK1 stably interacted with 14-3-3ε and was dephosphorylated; PKCβII interacted with Mdm2 along with Gβγ, leading to its ubiquitination at two lysine residues on its C-tail. Finally, PDK1/14-3-3ε and ubiquitinated PKCβII translocated to the plasma membrane. SIGNIFICANCE As PKCβII mediates a wide range of cellular functions and plays important roles in the pathogenesis of various diseases, our results will provide clues to understand the pathogenesis of PKCβII-related disorders and facilitate their treatment.
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Affiliation(s)
- Xiao Min
- Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwang-Ju, Republic of Korea
| | - Xiaohan Zhang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Shujie Wang
- Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwang-Ju, Republic of Korea
| | - Kyeong-Man Kim
- Department of Pharmacology, College of Pharmacy, Chonnam National University, Gwang-Ju, Republic of Korea.
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Quan Z, Yang Y, Zheng H, Zhan Y, Luo J, Ning Y, Fan S. Clinical implications of the interaction between PD-1/PD-L1 and PI3K/AKT/mTOR pathway in progression and treatment of non-small cell lung cancer. J Cancer 2022; 13:3434-3443. [PMID: 36313041 PMCID: PMC9608206 DOI: 10.7150/jca.77619] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 09/17/2022] [Indexed: 11/23/2022] Open
Abstract
The discovery of immune checkpoints has been well known to provide novel clues for cancer treatments. Immunotherapy against the programmed cell death protein-1 (PD-1) /programmed death-ligand-1 (PD-L1), one of the most popular auxiliary treatments in recent years, has been applied in various tumor treatments, including non-small cell lung cancer (NSCLC). However, inevitable issues such as side effects and drug resistance emerge following the use of immune checkpoint inhibitors. The PI3K/AKT/mTOR pathway may participate in the regulation of PD-L1 expression. Abnormal PI3K/AKT/mTOR pathway activation results in increased PD-L1 protein translation, whereas PD-L1 overexpression can activate the PI3K/AKT/mTOR pathway inversely. Via downstream proteins, including 4E-BP1, STAT3, NF-κB, c-MYC, and AMPK in aberrant energy status, the PI3K/AKT/mTOR pathway can regulate PD-L1 post-transcription and translation. Besides, the regulation of the PI3K pathway by the PD-1/PD-L1 axis involves both tumor cells and the tumor immune microenvironment. Inhibitors targeting the PD-1/PD-L1 have been successfully applied in the treatment of gastrointestinal cancer and breast cancer. Meanwhile, drug resistance from alternative pathway activation also evidently affects clinical progress. To achieve a better therapeutic effect and quality of survival, the combination of multiple treatment modalities presents great research value. Here we reviewed the interaction between PD-1/PD-L1 and PI3K/AKT/mTOR pathway in the progression and treatment of NSCLC and summarized its clinical implications. The intracellular interactions between PD-1/PD-L1 and the PI3K/AKT/mTOR pathway indicate that PD-1/PD-L1 inhibitors have a wide range of potential applications. And we presented the mechanism for combining therapy with monoclonal antibody PD-1/PD-L1 and PI3K/AKT/mTOR inhibitors in this review, to broaden the therapies for NSCLC.
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Affiliation(s)
| | | | | | | | | | | | - Songqing Fan
- ✉ Corresponding author: Songqing Fan, Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China. E-mail address:
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Gulhane P, Singh S. MicroRNA-520c-3p impacts sphingolipid metabolism mediating PI3K/AKT signaling in NSCLC: Systems perspective. J Cell Biochem 2022; 123:1827-1840. [PMID: 35977046 DOI: 10.1002/jcb.30319] [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: 06/24/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/09/2022]
Abstract
Increasing research suggests that sphingolipid metabolism is essential for the progression and metastasis of cancer. The underlying mechanistic insight into the dysregulation of sphingolipid metabolism affecting pathways is poorly investigated. As a result, the goal of the current study was to glean knowledge from the systems biology approach to investigate how the sphingolipid metabolism affects the signal transduction network in non-small cell lung cancer (NSCLC), the most common type of cancer in terms of occurrence and death globally. Our paper includes system-level models representing the diseased and healthy states elucidating that sphingolipids and its enzymes mediate PI3K/AKT pathway. Notably, its activation of downstream signaling mediators has led to cancer growth. Considering the critical role of sphingolipids in NSCLC, our study advocates the target CERS6 which can be potentially inhibited using hsa-miR-520c-3p to combat NSCLC for future precision medicine.
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Affiliation(s)
- Pooja Gulhane
- Department of Pathogenesis and Cellular Response, Computational and Systems Biology Lab, National Centre for Cell Science, SP Pune University Campus, Pune, India
| | - Shailza Singh
- Department of Pathogenesis and Cellular Response, Computational and Systems Biology Lab, National Centre for Cell Science, SP Pune University Campus, Pune, India
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36
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Seymore TN, Rivera-Núñez Z, Stapleton PA, Adibi JJ, Barrett ES. Phthalate Exposures and Placental Health in Animal Models and Humans: A Systematic Review. Toxicol Sci 2022; 188:153-179. [PMID: 35686923 PMCID: PMC9333406 DOI: 10.1093/toxsci/kfac060] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Phthalates are ubiquitous compounds known to leach from the plastic products that contain them. Due to their endocrine-disrupting properties, a wide range of studies have elucidated their effects on reproduction, metabolism, neurodevelopment, and growth. Additionally, their impacts during pregnancy and on the developing fetus have been extensively studied. Most recently, there has been interest in the impacts of phthalates on the placenta, a transient major endocrine organ critical to maintenance of the uterine environment and fetal development. Phthalate-induced changes in placental structure and function may have significant impacts on the course of pregnancy and ultimately, child health. Prior reviews have described the literature on phthalates and placental health; however to date, there has been no comprehensive, systematic review on this topic. Here, we review 35 papers (24 human and 11 animal studies) and summarize phthalate exposures in relation to an extensive set of placental measures. Phthalate-related alterations were reported for placental morphology, hormone production, vascularization, histopathology, and gene/protein expression. The most consistent changes were observed in vascular and morphologic endpoints, including cell composition. These changes have implications for pregnancy complications such as preterm birth and intrauterine growth restriction as well as potential ramifications for children's health. This comprehensive review of the literature, including common sources of bias, will inform the future work in this rapidly expanding field.
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Affiliation(s)
- Talia N Seymore
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, New Jersey 08854, USA
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, Piscataway, New Jersey 08854, USA
| | - Zorimar Rivera-Núñez
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, Piscataway, New Jersey 08854, USA
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey 08854, USA
| | - Phoebe A Stapleton
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, New Jersey 08854, USA
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jennifer J Adibi
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Emily S Barrett
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, Piscataway, New Jersey 08854, USA
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey 08854, USA
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Xu Y, Wang X, Han D, Wang J, Luo Z, Jin T, Shi C, Zhou X, Lin L, Shan J. Revealing the mechanism of Jiegeng decoction attenuates bleomycin-induced pulmonary fibrosis via PI3K/Akt signaling pathway based on lipidomics and transcriptomics. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 102:154207. [PMID: 35660351 DOI: 10.1016/j.phymed.2022.154207] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 05/18/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Pulmonary fibrosis (PF) is a serious lung disease with unknown etiology and irreversible course. Jiegeng decoction (JGD), a traditional prescription, is widely used to treat lung diseases due to its anti-inflammatory and expectorant effects. PURPOSE To explore the effect of JGD on mice with PF and its underlying mechanism. For this purpose, we established a mouse model with PF by bleomycin (BLM) and then administered JGD and pirfenidone at different concentrations. RESULTS In vivo, JGD was found to reduce lung inflammation, improve lung function and decrease collagen deposition to alleviate bleomycin-induced PF in mice. The mouse lung tissue was analyzed using lipidomics and transcriptomics. We found phosphatidylinositol was decreased after JGD treatment in lipidomics results, while transcriptomics results showed the critical roles of PI3K/Akt signaling pathway in JGD treatment group. Then, Western Blot and Immunohistochemistry were used to validate that JGD may regulate the expression of Bax, Caspase3, Caspase8, Caspase9 and Bcl-2 apoptosis-related proteins via PI3K/Akt signaling pathway. TUNEL staining revealed that apoptosis mainly occurs on AEC IIs. CONCLUSION Our results showed that JGD inhibits apoptosis through the PI3K/Akt signaling pathway, thereby protecting against BLM-induced PF. Hence, JGD is expected to be a potential drug candidate for the treatment of PF.
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Affiliation(s)
- Yong Xu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China; School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xuan Wang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Di Han
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Junyi Wang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zichen Luo
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tianzi Jin
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chen Shi
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xianmei Zhou
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
| | - Lili Lin
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Jinjun Shan
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China.
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Cucu I, Nicolescu MI, Busnatu ȘS, Manole CG. Dynamic Involvement of Telocytes in Modulating Multiple Signaling Pathways in Cardiac Cytoarchitecture. Int J Mol Sci 2022; 23:5769. [PMID: 35628576 PMCID: PMC9143034 DOI: 10.3390/ijms23105769] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 12/21/2022] Open
Abstract
Cardiac interstitium is a complex and dynamic environment, vital for normal cardiac structure and function. Telocytes are active cellular players in regulating main events that feature myocardial homeostasis and orchestrating its involvement in heart pathology. Despite the great amount of data suggesting (microscopically, proteomically, genetically, etc.) the implications of telocytes in the different physiological and reparatory/regenerative processes of the heart, understanding their involvement in realizing the heart's mature cytoarchitecture is still at its dawn. Our scrutiny of the recent literature gave clearer insights into the implications of telocytes in the WNT signaling pathway, but also TGFB and PI3K/AKT pathways that, inter alia, conduct cardiomyocytes differentiation, maturation and final integration into heart adult architecture. These data also strengthen evidence for telocytes as promising candidates for cellular therapies in various heart pathologies.
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Affiliation(s)
- Ioana Cucu
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
| | - Mihnea Ioan Nicolescu
- Division of Histology, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Laboratory of Radiobiology, “Victor Babeș” National Institute of Pathology, 050096 Bucharest, Romania
| | - Ștefan-Sebastian Busnatu
- Department of Cardiology-“Bagdasar Arseni” Emergency Clinical Hospital, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 041915 Bucharest, Romania
| | - Cătălin Gabriel Manole
- Department of Cellular & Molecular Biology and Histology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
- Laboratory of Ultrastructural Pathology, “Victor Babeș” National Institute of Pathology, 050096 Bucharest, Romania
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Dawson JE, Smith IN, Martin W, Khan K, Cheng F, Eng C. Shape shifting: The multiple conformational substates of the PTEN N-terminal PIP 2 -binding domain. Protein Sci 2022; 31:e4308. [PMID: 35481646 PMCID: PMC9004235 DOI: 10.1002/pro.4308] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/12/2022] [Accepted: 03/20/2022] [Indexed: 12/14/2022]
Abstract
The Phosphatase and TENsin homolog deleted on chromosome 10 (PTEN) is a chief regulator of a variety of cellular processes including cell proliferation, migration, growth, and death. It is also a major tumor suppressor gene that is frequently mutated or lost under cancerous conditions. PTEN encodes a dual-specificity (lipid and protein) phosphatase that negatively regulates the PI3K/AKT/mTOR signaling pathway where the PIP2 -binding domain (PBD) regulates the lipid phosphatase function. Unfortunately, despite two decades of research, a full-length structure of PTEN remains elusive, leaving open questions regarding PTEN's disordered regions that mediate protein stability, post-translational modifications, protein-protein interactions, while also hindering the design of small molecules that can regulate PTEN's function. Here, we utilized a combination of crosslinking mass spectrometry, in silico predicted structural modeling (including AlphaFold2), molecular docking, molecular dynamics simulations, and residue interaction network modeling to obtain structural details and molecular insight into the behavior of the PBD of PTEN. Our study shows that the PBD exists in multiple conformations which suggests its ability to regulate PTEN's variety of functions. Studying how these specific conformational substates contribute to PTEN function is imperative to defining its function in disease pathogenesis, and to delineate ways to modulate its tumor suppressor activity.
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Affiliation(s)
- Jennifer E. Dawson
- Genomic Medicine Institute, Lerner Research InstituteCleveland ClinicClevelandOhioUSA
- Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOhioUSA
| | - Iris Nira Smith
- Genomic Medicine Institute, Lerner Research InstituteCleveland ClinicClevelandOhioUSA
- Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOhioUSA
| | - William Martin
- Genomic Medicine Institute, Lerner Research InstituteCleveland ClinicClevelandOhioUSA
| | - Krishnendu Khan
- Department of Cardiovascular and Metabolic Sciences, Lerner Research InstituteCleveland ClinicClevelandOhioUSA
| | - Feixiong Cheng
- Genomic Medicine Institute, Lerner Research InstituteCleveland ClinicClevelandOhioUSA
- Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOhioUSA
- Case Comprehensive Cancer CenterCase Western Reserve University School of MedicineClevelandOhioUSA
| | - Charis Eng
- Genomic Medicine Institute, Lerner Research InstituteCleveland ClinicClevelandOhioUSA
- Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOhioUSA
- Department of Cardiovascular and Metabolic Sciences, Lerner Research InstituteCleveland ClinicClevelandOhioUSA
- Taussig Cancer InstituteCleveland ClinicClevelandOhioUSA
- Department of Genetics and Genome SciencesCase Western Reserve University School of MedicineClevelandOhioUSA
- Department of Computational and Systems Biology, School of MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
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Kanwore K, Kanwore K, Adzika GK, Abiola AA, Guo X, Kambey PA, Xia Y, Gao D. Cancer Metabolism: The Role of Immune Cells Epigenetic Alteration in Tumorigenesis, Progression, and Metastasis of Glioma. Front Immunol 2022; 13:831636. [PMID: 35392088 PMCID: PMC8980436 DOI: 10.3389/fimmu.2022.831636] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/28/2022] [Indexed: 12/17/2022] Open
Abstract
Glioma is a type of brain and spinal cord tumor that begins in glial cells that support the nervous system neurons functions. Age, radiation exposure, and family background of glioma constitute are risk factors of glioma initiation. Gliomas are categorized on a scale of four grades according to their growth rate. Grades one and two grow slowly, while grades three and four grow faster. Glioblastoma is a grade four gliomas and the deadliest due to its aggressive nature (accelerated proliferation, invasion, and migration). As such, multiple therapeutic approaches are required to improve treatment outcomes. Recently, studies have implicated the significant roles of immune cells in tumorigenesis and the progression of glioma. The energy demands of gliomas alter their microenvironment quality, thereby inducing heterogeneity and plasticity change of stromal and immune cells via the PI3K/AKT/mTOR pathway, which ultimately results in epigenetic modifications that facilitates tumor growth. PI3K is utilized by many intracellular signaling pathways ensuring the proper functioning of the cell. The activation of PI3K/AKT/mTOR regulates the plasma membrane activities, contributing to the phosphorylation reaction necessary for transcription factors activities and oncogenes hyperactivation. The pleiotropic nature of PI3K/AKT/mTOR makes its activity unpredictable during altered cellular functions. Modification of cancer cell microenvironment affects many cell types, including immune cells that are the frontline cells involved in inflammatory cascades caused by cancer cells via high cytokines synthesis. Typically, the evasion of immunosurveillance by gliomas and their resistance to treatment has been attributed to epigenetic reprogramming of immune cells in the tumor microenvironment, which results from cancer metabolism. Hence, it is speculative that impeding cancer metabolism and/or circumventing the epigenetic alteration of immune cell functions in the tumor microenvironment might enhance treatment outcomes. Herein, from an oncological and immunological perspective, this review discusses the underlying pathomechanism of cell-cell interactions enhancing glioma initiation and metabolism activation and tumor microenvironment changes that affect epigenetic modifications in immune cells. Finally, prospects for therapeutic intervention were highlighted.
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Affiliation(s)
- Kouminin Kanwore
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Xuzhou Key Laboratory of Neurobiology, Department of Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Konimpo Kanwore
- Faculty Mixed of Medicine and Pharmacy, Lomé-Togo, University of Lomé, Lomé, Togo
| | | | - Ayanlaja Abdulrahman Abiola
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Xuzhou Key Laboratory of Neurobiology, Department of Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Xiaoxiao Guo
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Xuzhou Key Laboratory of Neurobiology, Department of Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Piniel Alphayo Kambey
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Xuzhou Key Laboratory of Neurobiology, Department of Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Ying Xia
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Xuzhou Key Laboratory of Neurobiology, Department of Anatomy, Xuzhou Medical University, Xuzhou, China
| | - Dianshuai Gao
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Xuzhou Key Laboratory of Neurobiology, Department of Anatomy, Xuzhou Medical University, Xuzhou, China
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41
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Algharib AS, Shanab GML, Abdel-Ghaffar ARB, Ismail MA, Mohamed RH. Bithiophene derivative induced apoptosis and suppression of Akt pathway in mouse leukemic model. Tumour Biol 2022; 44:53-67. [DOI: 10.3233/tub-211538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND: Bithiophene derivatives show a promising anti-cancer potential. We previously showed that Bithienyl Fluorobenzamidine (BFB) has an anti-proliferative effect against several leukemia cell lines. Acute myeloid leukemia (AML) accounts for 18% of the total leukemia cases worldwide with heavier burden during the past 30 years. Therefore, the main aim remains the discovery of safe and effective medications. OBJECTIVE: The current research aims to investigate the anti-cancer efficacy of BFB and its effect on the apoptosis in the 7,12-Dimethylbenz[a]anthracene (DMBA) induced AML in mice. METHODS: AML was induced in mice by DMBA and then treated by 2 different doses of BFB. After BFB treatment, the hematological and histological pattern changes was examined. Furthermore, the molecular effect of BFB on apoptosis, cell cycle markers and Protein kinase B (Akt) pathway was examined using qPCR, Western blotting and ELISA. RESULTS: BFB treatment ameliorates leukemia histological and hematological markers significantly, despite non-significant changes in normal mice. This improvement exhibits cell cycle arrest and apoptosis induction, represented by elevation of tp53/p53, p21/p21, Caspase3 and downregulation of ckk1/Cdk1 in the bone marrow, as well as Akt pathway suppression. CONCLUSIONS: Our results establishes BFB as a promising therapeutic candidate against AML through cell cycle arrest, apoptosis induction and Akt pathway modulation.
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Affiliation(s)
- Ali Samy Algharib
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | | | | | - Mohamed Ahmed Ismail
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Rania Hassan Mohamed
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
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42
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Si J, Jin J, Sai J, Liu X, Luo X, Fu Z, Wang J. Circular RNA circ-PLCD1 functions as a tumor suppressor in non-small cell lung cancer by inactivation of PI3K/AKT signaling pathway. Hum Cell 2022; 35:924-935. [PMID: 35301686 DOI: 10.1007/s13577-022-00691-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 03/07/2022] [Indexed: 12/11/2022]
Abstract
Circular RNAs (circRNAs) are emerging as crucial regulators in tumorigenesis and aggressive progression. However, their biological roles in non-small cell lung cancer (NSCLC) remain largely unknown. Here, by performing circRNA high throughput sequencing in 4 paired NSCLC and normal tissues, we found a NSCLC-associated circRNA, circ-PLCD1, which was evidently downregulated in NSCLC tissues and cell lines. Circ-PLCD1 was transcriptionally activated by tumor-inhibiting protein p53, and exogenous expression of circ-PLCD1 inhibited NSCLC cell proliferation, invasion and induced apoptosis. Mechanistically, circ-PLCD1 acted as a competitive endogenous RNA (ceRNA) to sponge miR-375 and miR-1179 and elevate PTEN, a well-known inhibitor of oncogenic PI3K/AKT signaling, thereby repressing NSCLC tumorigenesis. Importantly, we also identified this ceRNA regulatory axis of circ-PLCD1/miR-375/miR-1179/PTEN in vivo by establishing a xenograft tumor model. Clinically, NSCLC patients with low circ-PLCD1 expression had larger tumor size, later clinical stage and shorter survival time than those with high circ-PLCD1 expression. Altogether, our findings reveal the important tumor suppressive role of circ-PLCD1 in NSCLC, reactivation of this circRNA may be considered as a novel therapeutic avenue for patient with NSCLC.
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Affiliation(s)
- Jiming Si
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Jianjun Jin
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Jingjing Sai
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Xiaoting Liu
- Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Xiao Luo
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Zhenqiang Fu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Jing Wang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China.
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43
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Prasopdee S, Yingchutrakul Y, Roytrakul S, Pholhelm M, Phanaksri T, Kunjantarachot A, Kulsantiwong J, Butthongkomvong K, Tesana S, Sathavornmanee T, Thitapakorn V. Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta as a potential biomarker for Opisthorchis viverrini infection and cholangiocarcinoma. Parasitology 2022; 149:171-180. [PMID: 35234600 PMCID: PMC11010463 DOI: 10.1017/s0031182021001694] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The human liver fluke Opisthorchis viverrini (Ov), the primary risk factor for cholangiocarcinoma (CHCA), is a parasite endemic to southeast Asian countries. With no effective treatments for CHCA currently available, early diagnosis and treatment of Ov infection remains the only practical method for the prevention of CHCA. In this study, plasma phosphoproteomes of patients in the non-Ov infection, non-cholangiocarcinoma subject group (non-OVCCA), the asymptomatic Ov infected group (OV), and the CHCA group (CCA), were investigated to identify potential biomarkers for Ov infection and CHCA. The AKT signalling pathway was found to be up-regulated. Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform (PIK3CB), an upstream signalling molecule, was selected as a potential biomarker and evaluated using indirect enzyme-linked immunosorbent assay (ELISA). Results demonstrated evidence that levels of PIK3CB in both the OV group and CCA group was statistically different compared to the non-OVCCA group (P < 0.01). However, the levels of PIK3CB between the OV group and the CCA group were found not to be statistically different. Sensitivity and specificity for OV using OD450 cut-off at >1.570 was 76 and 72%, respectively. For CCA, sensitivity and specificity using OD450 cut-off at >1.398 was 68 and 76%, respectively. Application of indirect ELISA detecting plasma PIK3CB will be of great benefit for screening of opisthorchiasis and CHCA.
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Affiliation(s)
- Sattrachai Prasopdee
- Thammasat University Research Unit in Opisthorchiasis, Cholangiocarcinoma, and Neglected Parasitic Diseases, Thammasat University, Pathum Thani, 12120, Thailand
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
| | - Yodying Yingchutrakul
- Proteomics Research Team, National Omics Center, NSTDA, Pathum Thani, 12120, Thailand
| | - Sittiruk Roytrakul
- Proteomics Research Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), NSTDA, Pathum Thani, 12120, Thailand
| | - Montinee Pholhelm
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
| | - Teva Phanaksri
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
| | - Anthicha Kunjantarachot
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
| | | | | | - Smarn Tesana
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
| | | | - Veerachai Thitapakorn
- Thammasat University Research Unit in Opisthorchiasis, Cholangiocarcinoma, and Neglected Parasitic Diseases, Thammasat University, Pathum Thani, 12120, Thailand
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
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44
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Westfall AK, Perry BW, Kamal AHM, Hales NR, Kay JC, Sapkota M, Schield DR, Pellegrino MW, Secor SM, Chowdhury SM, Castoe TA. Identification of an integrated stress and growth response signaling switch that directs vertebrate intestinal regeneration. BMC Genomics 2022; 23:6. [PMID: 34983392 PMCID: PMC8725436 DOI: 10.1186/s12864-021-08226-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 12/01/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Snakes exhibit extreme intestinal regeneration following months-long fasts that involves unparalleled increases in metabolism, function, and tissue growth, but the specific molecular control of this process is unknown. Understanding the mechanisms that coordinate these regenerative phenotypes provides valuable opportunities to understand critical pathways that may control vertebrate regeneration and novel perspectives on vertebrate regenerative capacities. RESULTS Here, we integrate a comprehensive set of phenotypic, transcriptomic, proteomic, and phosphoproteomic data from boa constrictors to identify the mechanisms that orchestrate shifts in metabolism, nutrient uptake, and cellular stress to direct phases of the regenerative response. We identify specific temporal patterns of metabolic, stress response, and growth pathway activation that direct regeneration and provide evidence for multiple key central regulatory molecules kinases that integrate these signals, including major conserved pathways like mTOR signaling and the unfolded protein response. CONCLUSION Collectively, our results identify a novel switch-like role of stress responses in intestinal regeneration that forms a primary regulatory hub facilitating organ regeneration and could point to potential pathways to understand regenerative capacity in vertebrates.
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Affiliation(s)
- Aundrea K Westfall
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | - Blair W Perry
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | - Abu H M Kamal
- Advanced Technology Cores, Baylor College of Medicine, Houston, TX, USA.,Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Nicole R Hales
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.,Department of Research Development and Commercialization, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Jarren C Kay
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, USA
| | - Madhab Sapkota
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.,Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Drew R Schield
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.,Department of Ecology and Evolutionary Biology, University of Colorado Boulder, Boulder, CO, USA
| | - Mark W Pellegrino
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | - Stephen M Secor
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, USA
| | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Todd A Castoe
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA.
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45
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Martinez JD, Mo Q, Xu Y, Qin L, Li Y, Xu J. Common Genomic Aberrations in Mouse and Human Breast Cancers with Concurrent P53 Deficiency and Activated PTEN-PI3K-AKT Pathway. Int J Biol Sci 2022; 18:229-241. [PMID: 34975329 PMCID: PMC8692138 DOI: 10.7150/ijbs.65763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/20/2021] [Indexed: 11/27/2022] Open
Abstract
Simultaneous P53 loss and activation of the PTEN-restricted PI3K-AKT pathway frequently occur in aggressive breast cancers. P53 loss causes genome instability, while PTEN loss and/or activating mutations of PIK3CA and AKT promote cancer cell proliferation that also increases incidences of genomic aberrations. However, the genomic alterations associated with P53 loss and activated PTEN-PI3K-AKT signaling in breast cancer have not been defined. Spatiotemporally controlled breast cancer models with inactivation of both P53 and Pten in adult mice have not been established for studying genomic alterations. Herein, we deleted both floxed Pten and Tp53 genes in the mammary gland epithelial cells in adult mice using a RCAS virus-mediated Cre-expressing system. These mice developed small tumors in 21 weeks, and poorly differentiated larger tumors in 26 weeks. In these tumors, we identified 360 genes mutated by nonsynonymous point mutations and small insertions and deletions (NSPMs/InDels), 435 genes altered by copy number amplifications (CNAs), and 450 genes inactivated by copy number deletions (CNDs). Importantly, 22.2%, 75.9% and 27.3% of these genes were also altered in human breast tumors with P53 and PTEN losses or P53 loss and activated PI3K-AKT signaling by NSPMs/InDels, CNAs and CNDs, respectively. Therefore, inactivation of P53 and Pten in adult mice causes rapid-growing breast tumors, and these tumors recapitulate a significant number of genetic aberrations in human breast tumors with inactivated P53 and activated PTEN-PI3K-AKT signaling. Further characterization of these commonly altered genes in breast cancer should help to identify novel cancer-driving genes and molecular targets for developing therapeutics.
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Affiliation(s)
- Jarrod D Martinez
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Qianxing Mo
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030
| | - Yixiang Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Li Qin
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Yi Li
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030
| | - Jianming Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030
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46
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HOU D, SHANG S, LV J, WANG S. Tripterygium glycoside ameliorates kidney injury in diabetic rats by regulating the PI3K/Akt signaling pathway. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.124721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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47
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Veeraraghavan VP, Jayaraman S, Rengasamy G, Mony U, Ganapathy DM, Geetha RV, Sekar D. Deciphering the Role of MicroRNAs in Neuroblastoma. MOLECULES (BASEL, SWITZERLAND) 2021; 27:molecules27010099. [PMID: 35011335 PMCID: PMC8746473 DOI: 10.3390/molecules27010099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/19/2021] [Accepted: 12/21/2021] [Indexed: 01/31/2023]
Abstract
Neuroblastoma (NB) is a type of peripheral sympathetic nervous system cancer that most commonly affects children. It is caused by the improper differentiation of primitive neural crest cells during embryonic development. Although NB occurs for 8% of paediatric cancers, it accounts for 15% of cancer-related deaths. Despite a considerable increase in cytotoxic chemo- and radiotherapy, patients in advanced stages remain virtually incurable. Therefore, there is a desperate necessity for new treatment strategies to be investigated. Accumulating evidence suggested that microRNAs (miRNAs) are a class of non-coding RNAs with 19–25 nucleotides lengths and play a central role in the development of NB carcinogenesis. Fascinatingly, miRNA inhibitors have an antisense property that can inhibit miRNA function and suppress the activity of mature miRNA. However, many studies have addressed miRNA inhibition in the treatment of NB, but their molecular mechanisms and signalling pathways are yet to be analysed. In this study, we impart the current state of knowledge about the role of miRNA inhibition in the aetiology of NB.
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Affiliation(s)
- Vishnu Priya Veeraraghavan
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India; (V.P.V.); (G.R.); (U.M.)
| | - Selvaraj Jayaraman
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India; (V.P.V.); (G.R.); (U.M.)
- Correspondence: (S.J.); (D.S.); Tel.: +91-7397331154 (S.J.); +91-9361216583 (D.S.)
| | - Gayathri Rengasamy
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India; (V.P.V.); (G.R.); (U.M.)
| | - Ullas Mony
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India; (V.P.V.); (G.R.); (U.M.)
| | - Dhanraj M Ganapathy
- Department of Prosthodontics, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India;
| | - Royapuram Veeraragavan Geetha
- Department of Microbiology, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India;
| | - Durairaj Sekar
- Cellular and Molecular Research Centre, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600 077, India
- Correspondence: (S.J.); (D.S.); Tel.: +91-7397331154 (S.J.); +91-9361216583 (D.S.)
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48
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Kostyusheva A, Brezgin S, Glebe D, Kostyushev D, Chulanov V. Host-cell interactions in HBV infection and pathogenesis: the emerging role of m6A modification. Emerg Microbes Infect 2021; 10:2264-2275. [PMID: 34767497 PMCID: PMC8648018 DOI: 10.1080/22221751.2021.2006580] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 12/28/2022]
Abstract
Hepatitis B virus (HBV) is a DNA virus with a complex life cycle that includes a reverse transcription step. HBV is poorly sensed by the immune system and frequently establishes persistent infection that can cause chronic infection, the leading cause of liver cancer and cirrhosis worldwide. Recent mounting evidence has indicated the growing importance of RNA methylation (m6A modification) in viral replication, immune escape, and carcinogenesis. The value of m6A RNA modification for the prediction and clinical management of chronic HBV infection remains to be assessed. However, a number of studies indicate the important role of m6A-marked transcripts and factors of m6A machinery in managing HBV-related pathologies. In this review, we discuss the fundamental and potential clinical impact of m6A modifications on HBV infection and pathogenesis, as well as highlight the important molecular techniques and tools that can be used for studying RNA m6A methylome.
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Affiliation(s)
- Anastasiya Kostyusheva
- National Medical Research Center of Tuberculosis and Infectious Diseases, Ministry of Health, Moscow, Russia
| | - Sergey Brezgin
- National Medical Research Center of Tuberculosis and Infectious Diseases, Ministry of Health, Moscow, Russia
- Scientific Center for Genetics and Life Sciences, Division of Biotechnology, Sirius University of Science and Technology, Sochi, Russia
| | - Dieter Glebe
- National Reference Center for Hepatitis B Viruses and Hepatitis D Viruses, Institute of Medical Virology, Justus Liebig University of Giessen, Giessen, Germany
| | - Dmitry Kostyushev
- National Medical Research Center of Tuberculosis and Infectious Diseases, Ministry of Health, Moscow, Russia
- Scientific Center for Genetics and Life Sciences, Division of Biotechnology, Sirius University of Science and Technology, Sochi, Russia
| | - Vladimir Chulanov
- National Medical Research Center of Tuberculosis and Infectious Diseases, Ministry of Health, Moscow, Russia
- Scientific Center for Genetics and Life Sciences, Division of Biotechnology, Sirius University of Science and Technology, Sochi, Russia
- Department of Infectious Diseases, Sechenov University, Moscow, Russia
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49
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Chen J, Wang M, Wang H, Long M. Zearalenone promotes apoptosis of mouse Leydig cells by targeting phosphatase and tensin homolog and thus inhibiting the PI3K/AKT signal pathway. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:67779-67787. [PMID: 34264493 DOI: 10.1007/s11356-021-15282-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Zearalenone (ZEA) is a mycotoxin with estrogenic activity whose main effect is to impair the reproductive systems of animals. It leads to reproductive disorders in livestock and thus causes serious losses to agriculture and animal husbandry. This study aims to examine whether ZEA induces toxicity in Leydig cells through the PI3K/AKT signaling pathway and also to investigate the role played by the upstream phosphatase and tensin homolog (PTEN) gene. An adenovirus vector model was constructed to interfere with the PTEN gene to investigate whether ZEA promotes the apoptosis of TM3 cells through the PI3K/AKT pathway. Apoptosis was detected cytometrically and the protein expression levels of PTEN, AKT, p-AKT, Bax, and Bcl-2 were evaluated via western blot analysis. The results show that ZEA induces apoptosis of TM3 cells. PTEN expression is significantly increased (P < 0.01), Bax expression is increased (P < 0.05), AKT and p-AKT expression of anti-apoptotic protein is significantly decreased (P < 0.01), and Bcl-2 protein expression is decreased (P < 0.05) in the ZEA group compared with the control group. In the shRNA+ZEA group, the expression levels of PTEN and Bax proteins are significantly decreased (P < 0.01), AKT protein is significantly increased (P < 0.01), and p-AKT protein is increased (P < 0.05) compared with the ZEA group. This study thus demonstrates that ZEA promotes apoptosis of TM3 cells by targeting PTEN and thus inhibiting the PI3K/AKT signal pathway.
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Affiliation(s)
- Jia Chen
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Mingyang Wang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Hanli Wang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Miao Long
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
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50
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Endogenous regulation of the Akt pathway by the aryl hydrocarbon receptor (AhR) in lung fibroblasts. Sci Rep 2021; 11:23189. [PMID: 34848742 PMCID: PMC8632926 DOI: 10.1038/s41598-021-02339-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 11/08/2021] [Indexed: 11/23/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor known to mediate toxic responses to dioxin. However, the role of the AhR in the regulation of cellular physiology has only recently been appreciated, including its ability to control cell cycle progression and apoptosis by unknown mechanisms. We hypothesized that the AhR enhances the activation of the AKT serine/threonine kinase (Akt) pathway to promote cell survival. Utilizing AhR knock-out (Ahr−/−) and wild-type (Ahr+/+) mouse lung fibroblasts (MLFs), we found that Ahr−/− MLFs have significantly higher basal Akt phosphorylation but that AhR did not affect Akt phosphorylation in MLFs exposed to growth factors or AhR ligands. Basal Akt phosphorylation was dependent on PI3K but was unaffected by changes in intracellular glutathione (GSH) or p85α. There was no significant decrease in cell viability in Ahr−/− MLFs treated with LY294002—a PI3K inhibitor—although LY294002 did attenuate MTT reduction, indicating an affect on mitochondrial function. Using a mass spectrometry (MS)-based approach, we identified several proteins that were differentially phosphorylated in the Ahr−/− MLFs compared to control cells, including proteins involved in the regulation of extracellular matrix (ECM), focal adhesion, cytoskeleton remodeling and mitochondrial function. In conclusion, Ahr ablation increased basal Akt phosphorylation in MLFs. Our results indicate that AhR may modulate the phosphorylation of a variety of novel proteins not previously identified as AhR targets, findings that help advance our understanding of the endogenous functions of AhR.
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