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Jia X, He X, Huang C, Li J, Dong Z, Liu K. Protein translation: biological processes and therapeutic strategies for human diseases. Signal Transduct Target Ther 2024; 9:44. [PMID: 38388452 PMCID: PMC10884018 DOI: 10.1038/s41392-024-01749-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 01/13/2024] [Accepted: 01/18/2024] [Indexed: 02/24/2024] Open
Abstract
Protein translation is a tightly regulated cellular process that is essential for gene expression and protein synthesis. The deregulation of this process is increasingly recognized as a critical factor in the pathogenesis of various human diseases. In this review, we discuss how deregulated translation can lead to aberrant protein synthesis, altered cellular functions, and disease progression. We explore the key mechanisms contributing to the deregulation of protein translation, including functional alterations in translation factors, tRNA, mRNA, and ribosome function. Deregulated translation leads to abnormal protein expression, disrupted cellular signaling, and perturbed cellular functions- all of which contribute to disease pathogenesis. The development of ribosome profiling techniques along with mass spectrometry-based proteomics, mRNA sequencing and single-cell approaches have opened new avenues for detecting diseases related to translation errors. Importantly, we highlight recent advances in therapies targeting translation-related disorders and their potential applications in neurodegenerative diseases, cancer, infectious diseases, and cardiovascular diseases. Moreover, the growing interest lies in targeted therapies aimed at restoring precise control over translation in diseased cells is discussed. In conclusion, this comprehensive review underscores the critical role of protein translation in disease and its potential as a therapeutic target. Advancements in understanding the molecular mechanisms of protein translation deregulation, coupled with the development of targeted therapies, offer promising avenues for improving disease outcomes in various human diseases. Additionally, it will unlock doors to the possibility of precision medicine by offering personalized therapies and a deeper understanding of the molecular underpinnings of diseases in the future.
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Affiliation(s)
- Xuechao Jia
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Xinyu He
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Chuntian Huang
- Department of Pathology and Pathophysiology, Henan University of Chinese Medicine, Zhengzhou, Henan, 450000, China
| | - Jian Li
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Zigang Dong
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China.
- Tianjian Laboratory of Advanced Biomedical Sciences, Zhengzhou, Henan, 450052, China.
- Research Center for Basic Medicine Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, 450000, China.
| | - Kangdong Liu
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China.
- Tianjian Laboratory of Advanced Biomedical Sciences, Zhengzhou, Henan, 450052, China.
- Research Center for Basic Medicine Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- The Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450000, China.
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Kiruthiga C, Niharika K, Devi KP. Phytol and α-Bisabolol Synergy Induces Autophagy and Apoptosis in A549 Cells and Additional Molecular Insights through Comprehensive Proteome Analysis via Nano LC-MS/MS. Anticancer Agents Med Chem 2024; 24:773-788. [PMID: 38415491 DOI: 10.2174/0118715206289038240214102951] [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: 12/11/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Non-Small Cell Lung Cancer (NSCLC) is a malignancy with a significant prevalence and aggressive nature, posing a considerable challenge in terms of therapeutic interventions. Autophagy and apoptosis, two intricate cellular processes, are integral to NSCLC pathophysiology, each affecting the other through shared signaling pathways. Phytol (Phy) and α-bisabolol (Bis) have shown promise as potential anticancer agents individually, but their combined effects in NSCLC have not been extensively investigated. OBJECTIVE The present study was to examine the synergistic impact of Phy and Bis on NSCLC cells, particularly in the context of autophagy modulation, and to elucidate the resulting differential protein expression using LCMS/ MS analysis. METHODS The A549 cell lines were subjected to the patented effective concentration of Phy and Bis, and subsequently, the viability of the cells was evaluated utilizing the MTT assay. The present study utilized real-time PCR analysis to assess the expression levels of crucial apoptotic genes, specifically Bcl-2, Bax, and Caspase-9, as well as autophagy-related genes, including Beclin-1, SQSTM1, Ulk1, and LC3B. The confirmation of autophagy marker expression (Beclin-1, LC3B) and the autophagy-regulating protein SQSTM1 was achieved through the utilization of Western blot analysis. Differentially expressed proteins were found using LC-MS/MS analysis. RESULTS The combination of Phy and Bis demonstrated significant inhibition of NSCLC cell growth, indicating their synergistic effect. Real-time PCR analysis revealed a shift towards apoptosis, with downregulation of Bcl-2 and upregulation of Bax and Caspase-9, suggesting a shift towards apoptosis. Genes associated with autophagy regulation, including Beclin-1, SQSTM1 (p62), Ulk1, and LC3B, showed significant upregulation, indicating potential induction of autophagy. Western blot analysis confirmed increased expression of autophagy markers, such as Beclin-1 and LC3B, while the autophagy-regulating protein SQSTM1 exhibited a significant decrease. LC-MS/MS analysis revealed differential expression of 861 proteins, reflecting the modulation of cellular processes. Protein-protein interaction network analysis highlighted key proteins involved in apoptotic and autophagic pathways, including STOML2, YWHAB, POX2, B2M, CDA, CAPN2, TXN, ECHS1, PEBP1, PFN1, CDC42, TUBB1, HSPB1, PXN, FGF2, and BAG3, emphasizing their crucial roles. Additionally, PANTHER pathway analysis uncovered enriched pathways associated with the differentially expressed proteins, revealing their involvement in a diverse range of biological processes, encompassing cell signaling, metabolism, and cellular stress responses. CONCLUSION The combined treatment of Phy and Bis exerts a synergistic inhibitory effect on NSCLC cell growth, mediated through the interplay of apoptosis and autophagy. The differential protein expression observed, along with the identified proteins and enriched pathways, provides valuable insights into the underlying molecular mechanisms. These findings offer a foundation for further exploration of the therapeutic potential of Phy and Bis in the management of NSCLC.
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Affiliation(s)
| | - Kambati Niharika
- Department of Biotechnology, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | - Kasi Pandima Devi
- Department of Biotechnology, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
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Cyran AM, Kleinegger F, Nass N, Naumann M, Haybaeck J, Arens C. Inhibition of EIF2α Dephosphorylation Decreases Cell Viability and Synergizes with Standard-of-Care Chemotherapeutics in Head and Neck Squamous Cell Carcinoma. Cancers (Basel) 2023; 15:5350. [PMID: 38001610 PMCID: PMC10670742 DOI: 10.3390/cancers15225350] [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: 10/05/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 11/26/2023] Open
Abstract
Drug resistance is a common cause of therapy failure in head and neck squamous cell carcinoma (HNSCC). One approach to tackling it is by targeting fundamental cellular processes, such as translation. The eukaryotic translation initiation factor 2α (EIF2α) is a key player in canonical translation initiation and integrates diverse stress signals; when phosphorylated, it curbs global protein synthesis. This study evaluates EIF2α expression and phosphorylation in HNSCC. A small-molecule inhibitor of EIF2α dephosphorylation, salubrinal, was tested in vitro, followed by viability assays, flow cytometry, and immunoblot analyses. Patient-derived 3D tumor spheres (PD3DS) were cultured with salubrinal and their viability assessed. Lastly, salubrinal was evaluated with standard-of-care chemotherapeutics. Our analysis of RNA and proteomics data shows elevated EIF2α expression in HNSCC. Immunohistochemical staining reveals increasing EIF2α abundance from premalignant lesions to invasive and metastatic carcinoma. In immunoblots from intraoperative samples, EIF2α expression and steady-state phosphorylation are higher in HNSCC than in neighboring normal tissue. Inhibition of EIF2α dephosphorylation decreases HNSCC cell viability and clonogenic survival and impairs the G1/S transition. Salubrinal also decreases the viability of PD3DS and acts synergistically with cisplatin, 5-fluorouracil, bleomycin, and proteasome inhibitors. Our results indicate that pharmacological inhibition of EIF2α dephosphorylation is a potential therapeutic strategy for HNSCC.
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Affiliation(s)
- Anna M. Cyran
- Legorreta Cancer Center, Department of Pathology and Laboratory Medicine, Brown University, Providence, RI 02906, USA
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Florian Kleinegger
- Diagnostic & Research Center for Molecular Biomedicine, Institute of Pathology, Medical University of Graz, 8010 Graz, Austria (J.H.)
| | - Norbert Nass
- Institute of Pathology, University Hospital Brandenburg, Brandenburg Medical School Theodor Fontane, 14770 Brandenburg an der Havel, Germany;
| | - Michael Naumann
- Institute of Experimental Internal Medicine, Otto von Guericke University, 39120 Magdeburg, Germany;
| | - Johannes Haybaeck
- Diagnostic & Research Center for Molecular Biomedicine, Institute of Pathology, Medical University of Graz, 8010 Graz, Austria (J.H.)
| | - Christoph Arens
- Department of Otorhinolaryngology, Head and Neck Surgery, Giessen and Marburg University Hospitals, Campus Giessen, 35392 Giessen, Germany;
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Abderrahman B, Jordan VC. Estrogen for the Treatment and Prevention of Breast Cancer: A Tale of 2 Karnofsky Lectures. Cancer J 2022; 28:163-168. [PMID: 35594462 PMCID: PMC9179096 DOI: 10.1097/ppo.0000000000000600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
ABSTRACT In 1971, Sir Alexander Haddow et al. delivered the inaugural David A. Karnofsky lecture at the American Society for Clinical Oncology. This award was designated American Society for Clinical Oncology's highest, as he had used translational research to identify the first clinical therapy, that is, synthetic estrogens to treat breast cancer. His lecture was entitled "Thoughts on Chemical Therapy." For 40 years, high-dose synthetic estrogens were used as palliative therapy, for some advanced breast cancer patients 5 years following menopause. Mechanisms were unknown. Tamoxifen, a failed "morning-after pill," is an antiestrogen in estrogen receptor-positive breast cancer, which was subsequently used to treat all stages of breast cancer and to prevent breast cancer. In 2008, Jordan was selected to present the 38th Karnofsky lecture entitled: "The Paradoxical Action of Estrogen in Breast Cancer-Survival or Death?" Unexpectedly, through a study of acquired resistance to long-term tamoxifen therapy, estrogen-induced apoptosis in long-term estrogen-deprived breast cancer was deciphered in Jordan's laboratory. These data and the biological rules established under laboratory conditions provided molecular mechanisms to aid in the interpretation of the Women's Health initiative in the United States and the Million Women Study in the United Kingdom. In addition, by establishing laboratory models to understand mechanisms of estrogen-induced apoptosis, new estrogen derivatives were successfully evaluated in the laboratory and tested as candidates for women after the therapeutic failure of antiestrogenic strategies to treat breast cancer. For the future, the knowledge obtained about estrogen-induced apoptosis in cancer holds the promise of discovering new therapies to control or cure cancer in general.
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Affiliation(s)
- Balkees Abderrahman
- From the Department of Breast Medical Oncology, University of Texas, MD Anderson Cancer Center, Houston, TX
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Fan P, Jordan VC. Estrogen Receptor and the Unfolded Protein Response: Double-Edged Swords in Therapy for Estrogen Receptor-Positive Breast Cancer. Target Oncol 2022; 17:111-124. [PMID: 35290592 PMCID: PMC9007905 DOI: 10.1007/s11523-022-00870-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2022] [Indexed: 01/07/2023]
Abstract
Estrogen receptor α (ERα) is a target for the treatment of ER-positive breast cancer patients. Paradoxically, it is also the initial site for estrogen (E2) to induce apoptosis in endocrine-resistant breast cancer. How ERα exhibits distinct functions, in different contexts, is the focus of numerous investigations. Compelling evidence demonstrated that unfolded protein response (UPR) is closely correlated with ER-positive breast cancer. Treatment with antiestrogens initially induces mild UPR through ERα with activation of three sensors of UPR-PRK-like endoplasmic reticulum kinase (PERK), inositol-requiring enzyme 1α (IRE1α), and activating transcription factor 6 (ATF6)-in the endoplasmic reticulum. Subsequently, these sensors interact with stress-associated transcription factors such as c-MYC, nuclear factor-κB (NF-κB), and hypoxia-inducible factor 1α (HIF1α), leading to acquired endocrine resistance. Paradoxically, E2 further activates sustained secondary UPR via ERα to induce apoptosis in endocrine-resistant breast cancer. Specifically, PERK plays a key role in inducing apoptosis, whereas IRE1α and ATF6 are involved in endoplasmic reticulum stress-associated degradation after E2 treatment. Furthermore, persistent activation of PERK deteriorates stress responses in mitochondria and triggers of NF-κB/tumor necrosis factor α (TNFα) axis, ultimately determining cell fate to apoptosis. The discovery of E2-induced apoptosis has clinical relevance for treatment of endocrine-resistant breast cancer. All of these findings demonstrate that ERα and associated UPR are double-edged swords in therapy for ER-positive breast cancer, depending on the duration and intensity of UPR stress. Herein, we address the mechanistic progress on how UPR leads to endocrine resistance and commits E2 to inducing apoptosis in endocrine-resistant breast cancer.
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Affiliation(s)
- Ping Fan
- Department of Breast Medical Oncology, Unit 1354, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, Texas, TX 77030, USA
| | - V Craig Jordan
- Department of Breast Medical Oncology, Unit 1354, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, Texas, TX 77030, USA.
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Estrogen Receptors-Mediated Apoptosis in Hormone-Dependent Cancers. Int J Mol Sci 2022; 23:ijms23031242. [PMID: 35163166 PMCID: PMC8835409 DOI: 10.3390/ijms23031242] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 02/04/2023] Open
Abstract
It is known that estrogen stimulates growth and inhibits apoptosis through estrogen receptor(ER)-mediated mechanisms in many cancer cell types. Interestingly, there is strong evidence that estrogens can also induce apoptosis, activating different ER isoforms in cancer cells. It has been observed that E2/ERα complex activates multiple pathways involved in both cell cycle progression and apoptotic cascade prevention, while E2/ERβ complex in many cases directs the cells to apoptosis. However, the exact mechanism of estrogen-induced tumor regression is not completely known. Nevertheless, ERs expression levels of specific splice variants and their cellular localization differentially affect outcome of estrogen-dependent tumors. The goal of this review is to provide a general overview of current knowledge on ERs-mediated apoptosis that occurs in main hormone dependent-cancers. Understanding the molecular mechanisms underlying the induction of ER-mediated cell death will be useful for the development of specific ligands capable of triggering apoptosis to counteract estrogen-dependent tumor growth.
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Maximov PY, Fan P, Abderrahman B, Curpan R, Jordan VC. Estrogen Receptor Complex to Trigger or Delay Estrogen-Induced Apoptosis in Long-Term Estrogen Deprived Breast Cancer. Front Endocrinol (Lausanne) 2022; 13:869562. [PMID: 35360069 PMCID: PMC8960923 DOI: 10.3389/fendo.2022.869562] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 02/15/2022] [Indexed: 11/13/2022] Open
Abstract
Antiestrogen therapy of breast cancer has been a "gold standard" of treatment of estrogen receptor (ER)-positive breast cancer for decades. Resistance to antiestrogen therapy may develop, however, a vulnerability in long-term estrogen deprived (LTED) breast cancer cells was discovered. LTED breast cancer cells may undergo estrogen-induced apoptosis within a week of treatment with estrogen in vitro. This phenomenon has been also validated in vivo and in the clinic. The molecular ER-mediated mechanism of action of estrogen-induced apoptosis was deciphered, however, the relationship between the structure of estrogenic ligands and the activity of the ER in LTED breast cancer cells remained a mystery until recently. In this review we provide an overview of the structure-activity relationship of various estrogens with different chemical structures and the modulation of estrogen-induced apoptosis in LTED breast cancer cells resistant to antihormone therapy. We provide analysis of evidence gathered over more than a decade of structure-activity relationship studies by our group on the role of the change in the conformation of the estrogen receptor and the biological activities of different classes of estrogens and the receptor as well in LTED breast cancer.
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Affiliation(s)
- Philipp Y. Maximov
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ping Fan
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Balkees Abderrahman
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ramona Curpan
- Institute of Chemistry, Romanian Academy, Timisoara, Romania
| | - V. Craig Jordan
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, United States
- *Correspondence: V. Craig Jordan,
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Feng R, Li J, Xuan W, Liu H, Cheng D, Wang G. An Autophagy-Related Gene-Based Prognostic Risk Signature for Hepatocellular Carcinoma: Construction and Validation. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:5770228. [PMID: 34691238 PMCID: PMC8529386 DOI: 10.1155/2021/5770228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/18/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a prevalent primary liver cancer. Treatment is dramatically difficult due to its high complexity and poor prognosis. Due to the disclosed dual functions of autophagy in cancer development, understanding autophagy-related genes devotes into novel biomarkers for HCC. METHODS Differential expression of genes in normal and tumor groups was analyzed to acquire autophagy-related genes in HCC. These genes were subjected to GO and KEGG pathway analyses. Genes were then screened by univariate regression analysis. The screened genes were subjected to multivariate Cox regression analysis to build a prognostic model. The model was validated by the ICGC validation set. RESULTS To sum up, 42 differential genes relevant to autophagy were screened by differential expression analysis. Enrichment analysis showed that they were mainly enriched in pathways including regulation of autophagy and cell apoptosis. Genes were screened by univariate analysis and multivariate Cox regression analysis to build a prognostic model. The model constituted 6 feature genes: EIF2S1, BIRC5, SQSTM1, ATG7, HDAC1, and FKBP1A. Validation confirmed the accuracy and independence of this model in predicting the HCC patient's prognosis. CONCLUSION A total of 6 feature genes were identified to build a prognostic risk model. This model is conducive to investigating interplay between autophagy-related genes and HCC prognosis.
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Affiliation(s)
- Rui Feng
- Department of International Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou City, Zhejiang Province 310000, China
| | - Jian Li
- Department of Interventional Medicine, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province 266000, China
| | - Weiling Xuan
- Department of Radiology, Xixi Hospital of Hangzhou, Hangzhou City, Zhejiang Province 310000, China
| | - Hanbo Liu
- Department of Vascular Surgery-Center for Vascular Intervention, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou City, Zhejiang Province 310000, China
| | - Dexin Cheng
- Department of Vascular Surgery-Center for Vascular Intervention, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou City, Zhejiang Province 310000, China
| | - Guowei Wang
- Department of Radiology, Xixi Hospital of Hangzhou, Hangzhou City, Zhejiang Province 310000, China
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Jilishitz I, Quiñones JL, Patel P, Chen G, Pasetsky J, VanInwegen A, Schoninger S, Jogalekar MP, Tsiperson V, Yan L, Wu Y, Gottesman SRS, Somma J, Blain SW. NP-ALT, a Liposomal:Peptide Drug, Blocks p27Kip1 Phosphorylation to Induce Oxidative Stress, Necroptosis, and Regression in Therapy-Resistant Breast Cancer Cells. Mol Cancer Res 2021; 19:1929-1945. [PMID: 34446542 DOI: 10.1158/1541-7786.mcr-21-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/14/2021] [Accepted: 08/17/2021] [Indexed: 11/16/2022]
Abstract
Resistance to cyclin D-CDK4/6 inhibitors (CDK4/6i) represents an unmet clinical need and is frequently caused by compensatory CDK2 activity. Here we describe a novel strategy to prevent CDK4i resistance by using a therapeutic liposomal:peptide formulation, NP-ALT, to inhibit the tyrosine phosphorylation of p27Kip1(CDKN1B), which in turn inhibits both CDK4/6 and CDK2. We find that NP-ALT blocks proliferation in HR+ breast cancer cells, as well as CDK4i-resistant cell types, including triple negative breast cancer (TNBC). The peptide ALT is not as stable in primary mammary epithelium, suggesting that NP-ALT has little effect in nontumor tissues. In HR+ breast cancer cells specifically, NP-ALT treatment induces ROS and RIPK1-dependent necroptosis. Estrogen signaling and ERα appear required. Significantly, NP-ALT induces necroptosis in MCF7 ESRY537S cells, which contain an ER gain of function mutation frequently detected in metastatic patients, which renders them resistant to endocrine therapy. Here we show that NP-ALT causes necroptosis and tumor regression in treatment naïve, palbociclib-resistant, and endocrine-resistant BC cells and xenograft models, demonstrating that p27 is a viable therapeutic target to combat drug resistance. IMPLICATIONS: This study reveals that blocking p27 tyrosine phosphorylation inhibits CDK4 and CDK2 activity and induces ROS-dependent necroptosis, suggesting a novel therapeutic option for endocrine and CDK4 inhibitor-resistant HR+ tumors.
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Affiliation(s)
- Irina Jilishitz
- Department of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York
| | - Jason Luis Quiñones
- Department of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York
| | - Priyank Patel
- Concarlo Holdings, LLC, Downstate Biotechnology Incubator, Brooklyn, New York
| | - Grace Chen
- Concarlo Holdings, LLC, Downstate Biotechnology Incubator, Brooklyn, New York
| | - Jared Pasetsky
- College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York
| | - Allison VanInwegen
- Department of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York
| | - Scott Schoninger
- College of Medicine, SUNY Downstate Medical Center, Brooklyn, New York
| | - Manasi P Jogalekar
- Department of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York
| | - Vladislav Tsiperson
- Department of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York
| | - Lingyue Yan
- Department of Biomedical Engineering, University at Buffalo, The State University at Buffalo, Buffalo, New York
| | - Yun Wu
- Department of Biomedical Engineering, University at Buffalo, The State University at Buffalo, Buffalo, New York
| | - Susan R S Gottesman
- Department of Pathology and Cell Biology, SUNY Downstate Medical Center, Brooklyn, New York
| | - Jonathan Somma
- Department of Pathology, Louisiana State University Health Sciences Center, New Orleans, Los Angeles
| | - Stacy W Blain
- Department of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York.
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Matos B, Howl J, Jerónimo C, Fardilha M. Modulation of serine/threonine-protein phosphatase 1 (PP1) complexes: A promising approach in cancer treatment. Drug Discov Today 2021; 26:2680-2698. [PMID: 34390863 DOI: 10.1016/j.drudis.2021.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/23/2021] [Accepted: 08/05/2021] [Indexed: 01/21/2023]
Abstract
Cancer is the second leading cause of death worldwide. Despite the availability of numerous therapeutic options, tumor heterogeneity and chemoresistance have limited the success of these treatments, and the development of effective anticancer therapies remains a major focus in oncology research. The serine/threonine-protein phosphatase 1 (PP1) and its complexes have been recognized as potential drug targets. Research on the modulation of PP1 complexes is currently at an early stage, but has immense potential. Chemically diverse compounds have been developed to disrupt or stabilize different PP1 complexes in various cancer types, with the objective of inhibiting disease progression. Beneficial results obtained in vitro now require further pre-clinical and clinical validation. In conclusion, the modulation of PP1 complexes seems to be a promising, albeit challenging, therapeutic strategy for cancer.
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Affiliation(s)
- Bárbara Matos
- Laboratory of Signal Transduction, Department of Medical Sciences, Institute of Biomedicine-iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal; Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - John Howl
- Molecular Pharmacology Group, Research Institute in Healthcare Science, University of Wolverhampton, Wolverhampton WV1 1LY, UK
| | - Carmen Jerónimo
- Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO Porto), 4200-072 Porto, Portugal; Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), 4050-513 Porto, Portugal
| | - Margarida Fardilha
- Laboratory of Signal Transduction, Department of Medical Sciences, Institute of Biomedicine-iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal.
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11
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Jordan VC. Molecular Mechanism for Breast Cancer Incidence in the Women's Health Initiative. Cancer Prev Res (Phila) 2020; 13:807-816. [DOI: 10.1158/1940-6207.capr-20-0082] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/13/2020] [Accepted: 07/10/2020] [Indexed: 11/16/2022]
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12
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Alexandrova E, Pecoraro G, Sellitto A, Melone V, Ferravante C, Rocco T, Guacci A, Giurato G, Nassa G, Rizzo F, Weisz A, Tarallo R. An Overview of Candidate Therapeutic Target Genes in Ovarian Cancer. Cancers (Basel) 2020; 12:cancers12061470. [PMID: 32512900 PMCID: PMC7352306 DOI: 10.3390/cancers12061470] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/31/2020] [Accepted: 06/02/2020] [Indexed: 12/25/2022] Open
Abstract
Ovarian cancer (OC) shows the highest mortality rate among gynecological malignancies and, because of the absence of specific symptoms, it is frequently diagnosed at an advanced stage, mainly due to the lack of specific and early biomarkers, such as those based on cancer molecular signature identification. Indeed, although significant progress has been made toward improving the clinical outcome of other cancers, rates of mortality for OC are essentially unchanged since 1980, suggesting the need of new approaches to identify and characterize the molecular mechanisms underlying pathogenesis and progression of these malignancies. In addition, due to the low response rate and the high frequency of resistance to current treatments, emerging therapeutic strategies against OC focus on targeting single factors and pathways specifically involved in tumor growth and metastasis. To date, loss-of-function screenings are extensively applied to identify key drug targets in cancer, seeking for more effective, disease-tailored treatments to overcome lack of response or resistance to current therapies. We review here the information relative to essential genes and functional pathways recently discovered in OC, often strictly interconnected with each other and representing promising biomarkers and molecular targets to treat these malignancies.
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Affiliation(s)
- Elena Alexandrova
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
| | - Giovanni Pecoraro
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
| | - Assunta Sellitto
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
| | - Viola Melone
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
| | - Carlo Ferravante
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
- Genomix4Life, via S. Allende 43/L, 84081 Baronissi, Italy;
| | - Teresa Rocco
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
- Genomix4Life, via S. Allende 43/L, 84081 Baronissi, Italy;
| | - Anna Guacci
- Genomix4Life, via S. Allende 43/L, 84081 Baronissi, Italy;
| | - Giorgio Giurato
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
| | - Giovanni Nassa
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
| | - Francesca Rizzo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
| | - Alessandro Weisz
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
- CRGS-Genome Research Center for Health, University of Salerno Campus of Medicine, 84081 Baronissi, Italy
- Correspondence: (A.W.); (R.T.); Tel.: +39-089-965043 (A.W.); +39-089-965067 (R.T.)
| | - Roberta Tarallo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitan”, University of Salerno, 84081 Baronissi, Italy; (E.A.); (G.P.); (A.S.); (V.M.); (C.F.); (T.R.); (G.G.); (G.N.); (F.R.)
- Correspondence: (A.W.); (R.T.); Tel.: +39-089-965043 (A.W.); +39-089-965067 (R.T.)
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Guo L, Li Y, Tian Y, Gong S, Chen X, Peng T, Wang A, Jiang Z. eIF2α promotes vascular remodeling via autophagy in monocrotaline-induced pulmonary arterial hypertension rats. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:2799-2809. [PMID: 31496656 PMCID: PMC6698179 DOI: 10.2147/dddt.s213817] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/15/2019] [Indexed: 12/15/2022]
Abstract
Purpose Eukaryotic initiation factor 2α (eIF2α) plays important roles in the proliferation and survival of pulmonary artery smooth muscle cells (PASMCs) in animal hypoxia-induced pulmonary hypertension models. However, the underlying mechanism remains unknown at large. Autophagy has been reported to play a key role in the vascular remodeling in pulmonary arterial hypertension (PAH). The purposes of this study are to determine the functions of eIF2α and autophagy in the vascular remodeling of the monocrotaline-induced PAH rats and to clarify the correlation between eIF2α and autophagy. Methods We established a rat model of monocrotaline-induced PAH, and we established a cell model of platelet derived growth factor (PDGF)-induced PASMCs proliferation. The vascular morphology and the expression of eIF2α, LC3B, and p62 were assessed in the pulmonary arterial tissue of Sprague-Dawleyrats and PDGF-induced PASMCs. Results Autophagy was significantly active in monocrotaline model group (MCT)-induced PAH rats, which obviously promotes vascular remodeling in MCT-induced PAH rats. Furthermore, the proliferation of PASMCs was induced by PDGF in vitro. The expression of LC3B, eIF2α was increased in the PDGF-induced PASMCs proliferation, and the expression of p62 was reduced in the PDGF-induced PASMCs proliferation. Moreover, eIF2α siRNA downregulated the expression of eIF2α and LC3B, and upregulated the expression of p62 in PDGF-induced PASMCs proliferation. eIF2α siRNA inhibited the PDGF-induced PASMCs proliferation. Finally, chloroquine can upregulate the protein expression of LC3B and p62, it also can inhibit proliferation in PDGF-induced PASMCs. Conclusion Based on these observations, we conclude that eIF2α promotes the proliferation of PASMCs and vascular remodeling in monocrotaline-induced PAH rats through accelerating autophagy pathway.
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Affiliation(s)
- Linya Guo
- Clinical Anatomy & Reproductive Medicine Application Institute, School of Medicine, University of South China, Hengyang 421001, People's Republic of China
| | - Yanbing Li
- National Key Discipline of Human Anatomy, Southern Medical University, Guangzhou 510000, Guangdong, People's Republic of China.,Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangzhou, 510000, Guangdong, People's Republic of China
| | - Ying Tian
- Institute of Clinical Research, Affiliated Nanhua Hospital, University of South China, Hengyang 421002, Hunan, People's Republic of China.,Postdoctoral Research Institute on Basic Medicine, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Shaoxin Gong
- Department of Pathology, First Affiliated Hospital, University of South China, Hengyang 421001, Hunan, People's Republic of China
| | - Xi Chen
- Clinical Anatomy & Reproductive Medicine Application Institute, School of Medicine, University of South China, Hengyang 421001, People's Republic of China
| | - Tianhong Peng
- Clinical Anatomy & Reproductive Medicine Application Institute, School of Medicine, University of South China, Hengyang 421001, People's Republic of China
| | - Aiping Wang
- Clinical Anatomy & Reproductive Medicine Application Institute, School of Medicine, University of South China, Hengyang 421001, People's Republic of China.,Institute of Clinical Research, Affiliated Nanhua Hospital, University of South China, Hengyang 421002, Hunan, People's Republic of China.,Postdoctoral Research Institute on Basic Medicine, University of South China, Hengyang, 421001, Hunan, People's Republic of China.,Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang 421001, Hunan, People's Republic of China
| | - Zhisheng Jiang
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang 421001, Hunan, People's Republic of China
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