1
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Lamb RJ, Griffiths K, Lip GYH, Sorokin V, Frenneaux MP, Feelisch M, Madhani M. ALDH2 polymorphism and myocardial infarction: From alcohol metabolism to redox regulation. Pharmacol Ther 2024; 259:108666. [PMID: 38763322 DOI: 10.1016/j.pharmthera.2024.108666] [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: 12/18/2023] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024]
Abstract
Acute myocardial infarction (AMI) remains a leading cause of death worldwide. Increased formation of reactive oxygen species (ROS) during the early reperfusion phase is thought to trigger lipid peroxidation and disrupt redox homeostasis, leading to myocardial injury. Whilst the mitochondrial enzyme aldehyde dehydrogenase 2 (ALDH2) is chiefly recognised for its central role in ethanol metabolism, substantial experimental evidence suggests an additional cardioprotective role for ALDH2 independent of alcohol intake, which mitigates myocardial injury by detoxifying breakdown products of lipid peroxidation including the reactive aldehydes, malondialdehyde (MDA) and 4-hydroxynonenal (4-HNE). Epidemiological evidence suggests that an ALDH2 mutant variant with reduced activity that is highly prevalent in the East Asian population increases AMI risk. Additional studies have uncovered a strong association between coronary heart disease and this ALDH2 mutant variant. It appears this enzyme polymorphism (in particular, in ALDH2*2/2 carriers) has the potential to have wide-ranging effects on thiol reactivity, redox tone and therefore numerous redox-related signaling processes, resilience of the heart to cope with lifestyle-related and environmental stressors, and the ability of the whole body to achieve redox balance. In this review, we summarize the journey of ALDH2 from a mitochondrial reductase linked to alcohol metabolism, via pre-clinical studies aimed at stimulating ALDH2 activity to reduce myocardial injury to clinical evidence for its protective role in the heart.
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Affiliation(s)
- Reece J Lamb
- Institute of Cardiovascular Sciences, The Medical School, University of Birmingham, United Kingdom
| | - Kayleigh Griffiths
- Institute of Cardiovascular Sciences, The Medical School, University of Birmingham, United Kingdom
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, United Kingdom; Danish Centre for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Vitaly Sorokin
- Department of Cardiac, Thoracic, and Vascular Surgery, National University Heart Centre, National University Health System, Singapore
| | | | - Martin Feelisch
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton and NIHR Biomedical Research Centre, University Hospital Southampton, Southampton, United Kingdom
| | - Melanie Madhani
- Institute of Cardiovascular Sciences, The Medical School, University of Birmingham, United Kingdom.
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2
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Xing L, Wang Z, Feng Y, Luo H, Dai G, Sang L, Zhang C, Qian J. The biological roles of CD47 in ovarian cancer progression. Cancer Immunol Immunother 2024; 73:145. [PMID: 38832992 PMCID: PMC11150368 DOI: 10.1007/s00262-024-03708-3] [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: 03/18/2024] [Accepted: 04/19/2024] [Indexed: 06/06/2024]
Abstract
Ovarian cancer is one of the most lethal malignant tumors, characterized by high incidence and poor prognosis. Patients relapse occurred in 65-80% after initial treatment. To date, no effective treatment has been established for these patients. Recently, CD47 has been considered as a promising immunotherapy target. In this paper, we reviewed the biological roles of CD47 in ovarian cancer and summarized the related mechanisms. For most types of cancers, the CD47/Sirpα immune checkpoint has attracted the most attention in immunotherapy. Notably, CD47 monoclonal antibodies and related molecules are promising in the immunotherapy of ovarian cancer, and further research is needed. In the future, new immunotherapy regimens targeting CD47 can be applied to the clinical treatment of ovarian cancer patients.
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Affiliation(s)
- Linan Xing
- Department of Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People's Republic of China
| | - Zhao Wang
- Department of Gynecological Oncology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, People's Republic of China
| | - Yue Feng
- Department of Gynecological Oncology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, People's Republic of China
| | - Haixia Luo
- Department of Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People's Republic of China
| | - Guijiang Dai
- Department of Comprehensive Office, The Second Affiliated Hospital of MuDanjiang Medical University, Mudanjiang, 157009, People's Republic of China
| | - Lin Sang
- Department of Obstetrics and Gynecology, People's Hospital of Anji, Huzhou, 310022, People's Republic of China
| | - Chunlong Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, People's Republic of China.
| | - Jianhua Qian
- Department of Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People's Republic of China.
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3
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Picher EA, Wahajuddin M, Barth S, Chisholm J, Shipley J, Pors K. The Capacity of Drug-Metabolising Enzymes in Modulating the Therapeutic Efficacy of Drugs to Treat Rhabdomyosarcoma. Cancers (Basel) 2024; 16:1012. [PMID: 38473371 DOI: 10.3390/cancers16051012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Rhabdomyosarcoma (RMS) is a rare soft tissue sarcoma (STS) that predominantly affects children and teenagers. It is the most common STS in children (40%) and accounts for 5-8% of total childhood malignancies. Apart from surgery and radiotherapy in eligible patients, standard chemotherapy is the only therapeutic option clinically available for RMS patients. While survival rates for this childhood cancer have considerably improved over the last few decades for low-risk and intermediate-risk cases, the mortality rate remains exceptionally high in high-risk RMS patients with recurrent and/or metastatic disease. The intensification of chemotherapeutic protocols in advanced-stage RMS has historically induced aggravated toxicity with only very modest therapeutic gain. In this review, we critically analyse what has been achieved so far in RMS therapy and provide insight into how a diverse group of drug-metabolising enzymes (DMEs) possess the capacity to modify the clinical efficacy of chemotherapy. We provide suggestions for new therapeutic strategies that exploit the presence of DMEs for prodrug activation, targeted chemotherapy that does not rely on DMEs, and RMS-molecular-subtype-targeted therapies that have the potential to enter clinical evaluation.
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Affiliation(s)
- Enric Arasanz Picher
- Institute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK
| | - Muhammad Wahajuddin
- Institute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK
| | - Stefan Barth
- Medical Biotechnology and Immunotherapy Research Unit, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town 7700, South Africa
| | - Julia Chisholm
- Children and Young People's Unit, Royal Marsden Hospital, Institute of Cancer Research, Sutton SM2 5PR, UK
| | - Janet Shipley
- Sarcoma Molecular Pathology Group, Division of Molecular Pathology, The Institute of Cancer Research, Sutton SM2 5NG, UK
| | - Klaus Pors
- Institute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK
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4
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Singh AK, Prasad P, Cancelas JA. Mesenchymal stromal cells, metabolism, and mitochondrial transfer in bone marrow normal and malignant hematopoiesis. Front Cell Dev Biol 2023; 11:1325291. [PMID: 38169927 PMCID: PMC10759248 DOI: 10.3389/fcell.2023.1325291] [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: 10/21/2023] [Accepted: 11/23/2023] [Indexed: 01/05/2024] Open
Abstract
Hematopoietic stem cell (HSC) transplantation-based treatments are in different phases of clinical development, ranging from current therapies to a promise in the repair and regeneration of diseased tissues and organs. Mesenchymal stromal/stem cells (MSCs), which are fibroblast-like heterogeneous progenitors with multilineage differentiation (osteogenic, chondrogenic, and adipogenic) and self-renewal potential, and exist in the bone marrow (BM), adipose, and synovium, among other tissues, represent one of the most widely used sources of stem cells in regenerative medicine. MSCs derived from bone marrow (BM-MSCs) exhibit a variety of traits, including the potential to drive HSC fate and anti-inflammatory and immunosuppressive capabilities via paracrine activities and interactions with the innate and adaptive immune systems. The role of BM-MSC-derived adipocytes is more controversial and may act as positive or negative regulators of benign or malignant hematopoiesis based on their anatomical location and functional crosstalk with surrounding cells in the BM microenvironment. This review highlights the most recent clinical and pre-clinical findings on how BM-MSCs interact with the surrounding HSCs, progenitors, and immune cells, and address some recent insights on the mechanisms that mediate MSCs and adipocyte metabolic control through a metabolic crosstalk between BM microenvironment cells and intercellular mitochondrial transfer in normal and malignant hematopoiesis.
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Affiliation(s)
- Abhishek K. Singh
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Hoxworth Blood Center, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Parash Prasad
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Jose A. Cancelas
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Hoxworth Blood Center, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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5
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Kundu B, Iyer MR. A patent review on aldehyde dehydrogenase inhibitors: an overview of small molecule inhibitors from the last decade. Expert Opin Ther Pat 2023; 33:651-668. [PMID: 38037334 DOI: 10.1080/13543776.2023.2287515] [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: 03/02/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023]
Abstract
INTRODUCTION Physiological and pathophysiological effects arising from detoxification of aldehydes in humans implicate the enzyme aldehyde dehydrogenase (ALDH) gene family comprising of 19 isoforms. The main function of this enzyme family is to metabolize reactive aldehydes to carboxylic acids. Dysregulation of ALDH activity has been associated with various diseases. Extensive research has since gone into studying ALHD isozymes, their structural biology and developing small-molecule inhibitors. Novel chemical strategies to enhance the selectivity of ALDH inhibitors have now appeared. AREAS COVERED A comprehensive review of patent literature related to aldehyde dehydrogenase inhibitors in the last decade and half (2007-2022) is provided. EXPERT OPINION Aldehyde dehydrogenase (ALDH) is an important enzyme that metabolizes reactive exogenous and endogenous aldehydes in the body through NAD(P)±dependent oxidation. Hence this family of enzymes possess important physiological as well as toxicological roles in human body. Significant efforts in the field have led to potent inhibitors with approved clinical agents for alcohol use disorder therapy. Further clinical translation of novel compounds targeting ALDH inhibition will validate the promised therapeutic potential in treating many human diseases.The scientific/patent literature has been searched on SciFinder-n, Reaxys, PubMed, Espacenet and Google Patents. The search terms used were 'ALDH inhibitors', 'Aldehyde Dehydrogenase Inhibitors'.
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Affiliation(s)
- Biswajit Kundu
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD, USA
| | - Malliga R Iyer
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD, USA
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Xanthis V, Mantso T, Dimtsi A, Pappa A, Fadouloglou VE. Human Aldehyde Dehydrogenases: A Superfamily of Similar Yet Different Proteins Highly Related to Cancer. Cancers (Basel) 2023; 15:4419. [PMID: 37686694 PMCID: PMC10650815 DOI: 10.3390/cancers15174419] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
The superfamily of human aldehyde dehydrogenases (hALDHs) consists of 19 isoenzymes which are critical for several physiological and biosynthetic processes and play a major role in the organism's detoxification via the NAD(P) dependent oxidation of numerous endogenous and exogenous aldehyde substrates to their corresponding carboxylic acids. Over the last decades, ALDHs have been the subject of several studies as it was revealed that their differential expression patterns in various cancer types are associated either with carcinogenesis or promotion of cell survival. Here, we attempt to provide a thorough review of hALDHs' diverse functions and 3D structures with particular emphasis on their role in cancer pathology and resistance to chemotherapy. We are especially interested in findings regarding the association of structural features and their changes with effects on enzymes' functionalities. Moreover, we provide an updated outline of the hALDHs inhibitors utilized in experimental or clinical settings for cancer therapy. Overall, this review aims to provide a better understanding of the impact of ALDHs in cancer pathology and therapy from a structural perspective.
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Affiliation(s)
| | | | | | | | - Vasiliki E. Fadouloglou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
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7
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Abusara OH, Ibrahim AIM, Issa H, Hammad AM, Ismail WH. In Vitro Evaluation of ALDH1A3-Affinic Compounds on Breast and Prostate Cancer Cell Lines as Single Treatments and in Combination with Doxorubicin. Curr Issues Mol Biol 2023; 45:2170-2181. [PMID: 36975509 PMCID: PMC10047313 DOI: 10.3390/cimb45030139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/18/2023] [Accepted: 03/04/2023] [Indexed: 03/08/2023] Open
Abstract
Aldehyde dehydrogenase (ALDH) enzymes are involved in the growth and development of several tissues, including cancer cells. It has been reported that targeting the ALDH family, including the ALDH1A subfamily, enhances cancer treatment outcomes. Therefore, we aimed to investigate the cytotoxicity of ALDH1A3-affinic compounds that have been recently discovered by our group, on breast (MCF7 and MDA-MB-231) and prostate (PC-3) cancer cell lines. These compounds were investigated on the selected cell lines as single treatments and in combination with doxorubicin (DOX). Results showed that the combination treatment experiments of the selective ALDH1A3 inhibitors (compounds 15 and 16) at variable concentrations with DOX resulted in significant increases in the cytotoxic effect on the MCF7 cell line for compound 15, and to a lesser extent for compound 16 on the PC-3 cell line, compared to DOX alone. The activity of compounds 15 and 16 as single treatments on all cell lines was found to be non-cytotoxic. Therefore, our findings showed that the investigated compounds have a promising potential to target cancer cells, possibly via an ALDH-related pathway, and sensitize them to DOX treatment.
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Affiliation(s)
- Osama H. Abusara
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
- Correspondence:
| | - Ali I. M. Ibrahim
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | | | - Alaa M. Hammad
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Worood H. Ismail
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
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8
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Izycka N, Rucinski M, Andrzejewska M, Szubert S, Nowak-Markwitz E, Sterzynska K. The Prognostic Value of Cancer Stem Cell Markers (CSCs) Expression-ALDH1A1, CD133, CD44-For Survival and Long-Term Follow-Up of Ovarian Cancer Patients. Int J Mol Sci 2023; 24:ijms24032400. [PMID: 36768723 PMCID: PMC9916537 DOI: 10.3390/ijms24032400] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/18/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023] Open
Abstract
Recurrent disease and treatment-associated chemoresistance are the two main factors accounting for poor clinical outcomes of ovarian cancer (OC) patients. Both can be associated with cancer stem cells (CSCs), which contribute to cancer formation, progression, chemoresistance, and recurrence. Hence, this study investigated whether the expression of known CSC-associated markers ALDH1A, CD44, and CD133 may predict OC patient prognosis. We analyzed their expression in primary epithelial ovarian cancer (EOC) patients using immunohistochemistry and related them to clinicopathological data, including overall survival (OS) and progression-free survival (PFS). Expression of ALDH1A1 was detected in 32%, CD133 in 28%, and CD44 in 33% of cases. While Kaplan-Meier analysis revealed no association of the expression of CD133 and CD44 with PFS and OS, ALDH1A1-positive patients were characterized with both significantly shorter OS (p = 0.00022) and PFS (p = 0.027). Multivariate analysis demonstrated that the expression of ALDH1A1, FIGO stage III-IV, and residual disease after suboptimal debulking or neoadjuvant chemotherapy correlated with shorter OS. The results of this study identify ALDH1A1 as a potential independent prognostic factor of shorter OS and PFS in EOC patients. Therefore, targeting ALDH1A1-positive cancer cells may be a promising therapeutic strategy to influence the disease course and treatment response.
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Affiliation(s)
- Natalia Izycka
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Division of Gynecologic Oncology, Poznan University of Medical Sciences, Polna 33 St., 60-535 Poznań, Poland
| | - Marcin Rucinski
- Department of Histology and Embryology, Poznan University of Medical Sciences, Święcickiego 6 St., 61-781 Poznań, Poland
| | - Malgorzata Andrzejewska
- Department of Histology and Embryology, Poznan University of Medical Sciences, Święcickiego 6 St., 61-781 Poznań, Poland
| | - Sebastian Szubert
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Division of Gynecologic Oncology, Poznan University of Medical Sciences, Polna 33 St., 60-535 Poznań, Poland
| | - Ewa Nowak-Markwitz
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Division of Gynecologic Oncology, Poznan University of Medical Sciences, Polna 33 St., 60-535 Poznań, Poland
| | - Karolina Sterzynska
- Department of Histology and Embryology, Poznan University of Medical Sciences, Święcickiego 6 St., 61-781 Poznań, Poland
- Correspondence: ; Tel.: +48-61-8546455
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9
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Ma M, He W, Zhao K, Xue L, Xia S, Zhang B. Targeting aldehyde dehydrogenase for prostate cancer therapies. Front Oncol 2022; 12:1006340. [PMID: 36300093 PMCID: PMC9589344 DOI: 10.3389/fonc.2022.1006340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/26/2022] [Indexed: 11/25/2022] Open
Abstract
Prostate cancer (PCa) is the most common cancer in men in the United States. About 10 – 20% of PCa progress to castration-resistant PCa (CRPC), which is accompanied by metastasis and therapeutic resistance. Aldehyde dehydrogenase (ALDH) is famous as a marker of cancer stem-like cells in different cancer types, including PCa. Generally, ALDHs catalyze aldehyde oxidation into less toxic carboxylic acids and give cancers a survival advantage by reducing oxidative stress caused by aldehyde accumulation. In PCa, the expression of ALDHs is associated with a higher tumor stage and more lymph node metastasis. Functionally, increased ALDH activity makes PCa cells gain more capabilities in self-renewal and metastasis and reduces the sensitivity to castration and radiotherapy. Therefore, it is promising to target ALDH or ALDHhigh cells to eradicate PCa. However, challenges remain in moving the ALDH inhibitors to PCa therapy, potentially due to the toxicity of pan-ALDH inhibitors, the redundancy of ALDH isoforms, and the lack of explicit understanding of the metabolic signaling transduction details. For targeting PCa stem-like cells (PCSCs), different regulators have been revealed in ALDHhigh cells to control cell proliferation and tumorigenicity. ALDH rewires essential signaling transduction in PCa cells. It has been shown that ALDHs produce retinoic acid (RA), bind with androgen, and modulate diverse signaling. This review summarizes and discusses the pathways directly modulated by ALDHs, the crucial regulators that control the activities of ALDHhigh PCSCs, and the recent progress of ALDH targeted therapies in PCa. These efforts will provide insight into improving ALDH-targeted treatment.
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Affiliation(s)
| | | | | | | | - Siyuan Xia
- *Correspondence: Siyuan Xia, ; Baotong Zhang,
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10
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Sun G, Yang Y, Liu J, Gao Z, Xu T, Chai J, Xu J, Fan Z, Xiao T, Jia Q, Li M. Cancer stem cells in esophageal squamous cell carcinoma. Pathol Res Pract 2022; 237:154043. [DOI: 10.1016/j.prp.2022.154043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/21/2022] [Accepted: 07/26/2022] [Indexed: 02/07/2023]
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11
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Cancer Stem Cell Markers in Rhabdomyosarcoma in Children. Diagnostics (Basel) 2022; 12:diagnostics12081895. [PMID: 36010245 PMCID: PMC9406733 DOI: 10.3390/diagnostics12081895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: The aim of the present study was to assess the cancer stem cell (CSC) markers CD24, CD44, CD133, and ALDH1A1 in rhabdomyosarcoma (RMS) in children and to define their prognostic role in this group of patients. (2) Methods: The study material was archival tissue specimens collected from 49 patients under 18 years of age and who had been diagnosed with RMS. Immunohistochemistry (IHC) was used to evaluate the expression of the selected CSC markers in the tumor tissue. Expression was evaluated using a semiquantitative IRS scale based on the one developed by Remmele and Stenger and was correlated with the clinical and pathomorphological parameters of prognostic importance in RMS. (3) Results: Expression of the selected CSC markers CD24, CD44, CD133, and ALDH1A1 was demonstrated in 83.7%, 55.1%, 81.6%, and 100% of the RMS patients, respectively. The expression of all of the assessed CSC markers was statistically significantly higher in the study group versus the control group. No significant correlation was found between the expression of the selected CSC markers and clinical and pathological prognostic factors that were analyzed. The expression of the CSC markers did not have a significant influence on RMS survival rates. (4) Conclusions: The results of the conducted study confirm the expression of selected CSC markers in rhabdomyosarcoma tissue in children. The study did not support the prognostic relevance of the expression of any of the assessed CSC markers. However, further studies are needed to fully understand the relevance of the selected CSC markers in RMS carcinogenesis.
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12
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Hussen BM, Kheder RK, Abdullah ST, Hidayat HJ, Rahman HS, Salihi A, Taheri M, Ghafouri-Fard S. Functional interplay between long non-coding RNAs and Breast CSCs. Cancer Cell Int 2022; 22:233. [PMID: 35864503 PMCID: PMC9306174 DOI: 10.1186/s12935-022-02653-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/12/2022] [Indexed: 12/14/2022] Open
Abstract
Breast cancer (BC) represents aggressive cancer affecting most women’s lives globally. Metastasis and recurrence are the two most common factors in a breast cancer patient's poor prognosis. Cancer stem cells (CSCs) are tumor cells that are able to self-renew and differentiate, which is a significant factor in metastasis and recurrence of cancer. Long non-coding RNAs (lncRNAs) describe a group of RNAs that are longer than 200 nucleotides and do not have the ability to code for proteins. Some of these lncRNAs can be mainly produced in various tissues and tumor forms. In the development and spread of malignancies, lncRNAs have a significant role in influencing multiple signaling pathways positively or negatively, making them promise useful diagnostic and prognostic markers in treating the disease and guiding clinical therapy. However, it is not well known how the interaction of lncRNAs with CSCs will affect cancer development and progression. Here, in this review, we attempt to summarize recent findings that focus on lncRNAs affect cancer stem cell self-renewal and differentiation in breast cancer development and progression, as well as the strategies and challenges for overcoming lncRNA's therapeutic resistance.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil , Kurdistan Region, Iraq.,Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | - Ramiar Kamal Kheder
- Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq.,Medical Laboratory Science, College of Science, University of Raparin, Rania, KGR, Iraq
| | - Sara Tharwat Abdullah
- Department of Pharmacology and Toxicology, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Hazha Jamal Hidayat
- Department of Biology, College of Education, Salahaddin University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Heshu Sulaiman Rahman
- Department of Physiology, College of Medicine, University of Sulaimani, Sulaimaniyah, Republic of Iraq.,Department of Medical Laboratory Sciences, Komar University of Science and Technology, Sulaimaniyah, Republic of Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. .,Institute of Human Genetics, Jena University Hospital, Jena, Germany.
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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13
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Pereira R, Flaherty RL, Edwards RS, Greenwood HE, Shuhendler AJ, Witney TH. A prodrug strategy for the in vivo imaging of aldehyde dehydrogenase activity. RSC Chem Biol 2022; 3:561-570. [PMID: 35656483 PMCID: PMC9092432 DOI: 10.1039/d2cb00040g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/04/2022] [Indexed: 11/21/2022] Open
Abstract
Therapy resistance is one of the biggest challenges facing clinical oncology. Despite a revolution in new anti-cancer drugs targeting multiple components of the tumour microenvironment, acquired or innate resistance frequently blunts the efficacy of these treatments. Non-invasive identification of drug-resistant tumours will enable modification of the patient treatment pathway through the selection of appropriate second-line treatments. Here, we have designed a prodrug radiotracer for the non-invasive imaging of aldehyde dehydrogenase 1A1 (ALDH1A1) activity. Elevated ALDH1A1 activity is a marker of drug-resistant cancer cells, modelled here with matched cisplatin-sensitive and -resistant human SKOV3 ovarian cancer cells. The aromatic aldehyde of our prodrug radiotracer was intracellularly liberated by esterase cleavage of the geminal diacetate and specifically trapped by ALDH through its conversion to the charged carboxylic acid. Through this mechanism of action, ALDH-specific retention of our prodrug radiotracer in the drug-resistant tumour cells was twice as high as the drug-sensitive cells. Acylal masking of the aldehyde afforded a modest protection from oxidation in the blood, which was substantially improved in carrier-added experiments. In vivo positron emission tomography imaging of tumour-bearing mice produced high tumour-to-background images and radiotracer uptake in high ALDH-expressing organs but was unable to differentiate between drug-sensitive and drug-resistant tumours. Alternative strategies to protect the labile aldehyde are currently under investigation.
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Affiliation(s)
- Raul Pereira
- School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital London SE1 7EH UK +44 (0)20 7188 7188, ext. 883496
| | - Renée L Flaherty
- School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital London SE1 7EH UK +44 (0)20 7188 7188, ext. 883496
| | - Richard S Edwards
- School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital London SE1 7EH UK +44 (0)20 7188 7188, ext. 883496
| | - Hannah E Greenwood
- School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital London SE1 7EH UK +44 (0)20 7188 7188, ext. 883496
| | - Adam J Shuhendler
- Department of Chemistry & Biomolecular Sciences, University of Ottawa Ottawa ON Canada
- University of Ottawa Heart Institute Ottawa ON Canada
| | - Timothy H Witney
- School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital London SE1 7EH UK +44 (0)20 7188 7188, ext. 883496
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14
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Terzi MY, Okuyan HM, Gülbol-Duran G, Urhan-Küçük M. Reduced Expression of PEDF and ALDH1A1 during Spheroid Transition of Lung Cancer Cells: An In Vitro Study. CYTOL GENET+ 2022. [DOI: 10.3103/s0095452722020104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Zanoni M, Bravaccini S, Fabbri F, Arienti C. Emerging Roles of Aldehyde Dehydrogenase Isoforms in Anti-cancer Therapy Resistance. Front Med (Lausanne) 2022; 9:795762. [PMID: 35299840 PMCID: PMC8920988 DOI: 10.3389/fmed.2022.795762] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 02/10/2022] [Indexed: 12/19/2022] Open
Abstract
Aldehyde dehydrogenases (ALDHs) are a family of detoxifying enzymes often upregulated in cancer cells and associated with therapeutic resistance. In humans, the ALDH family comprises 19 isoenzymes active in the majority of mammalian tissues. Each ALDH isoform has a specific differential expression pattern and most of them have individual functional roles in cancer. ALDHs are overexpressed in subpopulations of cancer cells with stem-like features, where they are involved in several processes including cellular proliferation, differentiation, detoxification and survival, participating in lipids and amino acid metabolism and retinoic acid synthesis. In particular, ALDH enzymes protect cancer cells by metabolizing toxic aldehydes in less reactive and more soluble carboxylic acids. High metabolic activity as well as conventional anticancer therapies contribute to aldehyde accumulation, leading to DNA double strand breaks (DSB) through the generation of reactive oxygen species (ROS) and lipid peroxidation. ALDH overexpression is crucial not only for the survival of cancer stem cells but can also affect immune cells of the tumour microenvironment (TME). The reduction of ROS amount and the increase in retinoic acid signaling impairs immunogenic cell death (ICD) inducing the activation and stability of immunosuppressive regulatory T cells (Tregs). Dissecting the role of ALDH specific isoforms in the TME can open new scenarios in the cancer treatment. In this review, we summarize the current knowledge about the role of ALDH isoforms in solid tumors, in particular in association with therapy-resistance.
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Affiliation(s)
- Michele Zanoni
- Biosciences Laboratory,IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Sara Bravaccini
- Biosciences Laboratory,IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Francesco Fabbri
- Biosciences Laboratory,IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Chiara Arienti
- Biosciences Laboratory,IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
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16
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Dai S, Liu T, Liu YY, He Y, Liu T, Xu Z, Wang ZW, Luo F. Long Non-Coding RNAs in Lung Cancer: The Role in Tumor Microenvironment. Front Cell Dev Biol 2022; 9:795874. [PMID: 35047506 PMCID: PMC8762058 DOI: 10.3389/fcell.2021.795874] [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: 10/15/2021] [Accepted: 12/08/2021] [Indexed: 02/05/2023] Open
Abstract
The development of various therapeutic interventions, particularly immune checkpoint inhibitor therapy, have effectively induced tumor remission for patients with advanced lung cancer. However, few cancer patients can obtain significant and long-lasting therapeutic effects for the limitation of immunological nonresponse and resistance. For this case, it’s urgent to identify new biomarkers and develop therapeutic targets for future immunotherapy. Over the past decades, tumor microenvironment (TME)-related long non-coding RNAs (lncRNAs) have gradually become well known to us. A large number of existing studies have indicated that TME-related lncRNAs are one of the major factors to realize precise diagnosis and treatment of lung cancer. Herein, this paper discusses the roles of lncRNAs in TME, and the potential application of lncRNAs as biomarkers or therapeutic targets for immunotherapy in lung cancer.
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Affiliation(s)
- Shuang Dai
- Department of Medical Oncology, Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Liu
- Department of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yan-Yang Liu
- Department of Medical Oncology, Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yingying He
- Oncology Department, People's Hospital of Deyang City, Deyang, China
| | - Tao Liu
- Department of Oncology, The First Affiliated Hospital of Chengdu Medical College, Chengdu Medical College, Chengdu, China
| | - Zihan Xu
- Department of Medical Oncology, Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Zhi-Wu Wang
- Department of Chemoradiotherapy, Tangshan People's Hospital, Tangshan, China
| | - Feng Luo
- Department of Medical Oncology, Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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17
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Alpdağtaş S, Turunen O, Valjakka J, Binay B. The challenges of using NAD +-dependent formate dehydrogenases for CO 2 conversion. Crit Rev Biotechnol 2021; 42:953-972. [PMID: 34632901 DOI: 10.1080/07388551.2021.1981820] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In recent years, CO2 reduction and utilization have been proposed as an innovative solution for global warming and the ever-growing energy and raw material demands. In contrast to various classical methods, including chemical, electrochemical, and photochemical methods, enzymatic methods offer a green and sustainable option for CO2 conversion. In addition, enzymatic hydrogenation of CO2 into platform chemicals could be used to produce economically useful hydrogen storage materials, making it a win-win strategy. The thermodynamic and kinetic stability of the CO2 molecule makes its utilization a challenging task. However, Nicotine adenine dinucleotide (NAD+)-dependent formate dehydrogenases (FDHs), which have high selectivity and specificity, are attractive catalysts to overcome this issue and convert CO2 into fuels and renewable chemicals. It is necessary to improve the stability, cofactor necessity, and CO2 conversion efficiency of these enzymes, such as by combining them with appropriate hybrid systems. However, metal-independent, NAD+-dependent FDHs, and their CO2 reduction activity have received limited attention to date. This review outlines the CO2 reduction ability of these enzymes as well as their properties, reaction mechanisms, immobilization strategies, and integration with electrochemical and photochemical systems for the production of formic acid or formate. The biotechnological applications of FDH, future perspectives, barriers to CO2 reduction with FDH, and aspects that must be further developed are briefly summarized. We propose that constructing hybrid systems that include NAD+-dependent FDHs is a promising approach to convert CO2 and strengthen the sustainable carbon bio-economy.
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Affiliation(s)
- Saadet Alpdağtaş
- Department of Biology, Van Yuzuncu Yil University, Tusba, Turkey
| | - Ossi Turunen
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | - Jarkko Valjakka
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Barış Binay
- Department of Bioengineering, Gebze Technical University, Gebze, Turkey
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18
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Liu C, Qiang J, Deng Q, Xia J, Deng L, Zhou L, Wang D, He X, Liu Y, Zhao B, Lv J, Yu Z, Lei QY, Shao ZM, Zhang XY, Zhang L, Liu S. ALDH1A1 activity in tumor-initiating cells remodels myeloid-derived suppressor cells to promote breast cancer progression. Cancer Res 2021; 81:5919-5934. [PMID: 34580061 DOI: 10.1158/0008-5472.can-21-1337] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/17/2021] [Accepted: 09/24/2021] [Indexed: 11/16/2022]
Abstract
Tumor-initiating cells (TIC) are associated with tumor initiation, growth, metastasis, and recurrence. Aldehyde dehydrogenase 1A1 (ALDH1A1) is a TIC marker in many cancers, including breast cancer. However the molecular mechanisms underlying ALDH1A1 functions in solid tumors remain largely unknown. Here we demonstrate that ALDH1A1 enzymatic activity facilitates breast tumor growth. Mechanistically, ALDH1A1 decreased the intracellular pH in breast cancer cells to promote phosphorylation of TAK1, activate NFκB signaling, and increase the secretion of granulocyte macrophage colony-stimulating factor (GM-CSF), which led to myeloid-derived suppressor cell (MDSC) expansion and immunosuppression. Furthermore, the ALDH1A1 inhibitor disulfiram and chemotherapeutic agent gemcitabine cooperatively inhibited breast tumor growth and tumorigenesis by purging ALDH+ TICs and activating T cell immunity. These findings elucidate how active ALDH1A1 modulates the immune system to promote tumor development, highlghting new therapeutic strategies for malignant breast cancer.
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Affiliation(s)
- Cuicui Liu
- Cancer Institute, Fudan University Shanghai Cancer Center
| | | | - Qiaodan Deng
- Cancer Institute, Fudan University Shanghai Cancer Center
| | - Jie Xia
- Cancer Institute, Fudan University Shanghai Cancer Center
| | - Lu Deng
- Stowers Institute for Medical Research
| | - Lei Zhou
- Cancer Institute, Fudan University Shanghai Cancer Center
| | | | - Xueyan He
- Life Science, University of Science and Technology of China
| | | | | | - Jinhui Lv
- Shanghai East Hospital, Tongji University School of Medicine
| | - Zuoren Yu
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Life Sciences and Technology
| | - Qun-Ying Lei
- Department of Oncology, Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University
| | - Zhi-Ming Shao
- Breast Surgery, Fudan University Shanghai Cancer Center
| | - Xiao-Yong Zhang
- The Institute of Science and Technology for Brain-inspired Intelligence, Fudan University
| | | | - Suling Liu
- Cancer Institute, Fudan University Shanghai Cancer Center
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19
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Ahmad S, Arsalan A, Hashmi A, Khan MA, Siddiqui WA, Younus H. A comparative study based on activity, conformation and computational analysis on the inhibition of human salivary aldehyde dehydrogenase by phthalate plasticizers: Implications in assessing the safety of packaged food items. Toxicology 2021; 462:152947. [PMID: 34534558 DOI: 10.1016/j.tox.2021.152947] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022]
Abstract
Phthalate plasticizers are commonly used in various consumer-end products. Human salivary aldehyde dehydrogenase (hsALDH) is a detoxifying enzyme which defends us from the toxic aldehydes. Here, the effect of phthalates [Di-2-ethylhexyl phthalate (DEHP), Diethyl phthalate (DEP) and Dibutyl phthalate (DBP)] on hsALDH has been investigated. These plasticizers inhibited hsALDH, and the IC50 values were 0.48 ± 0.04, 283.20 ± 0.09 and 285.00 ± 0.14 μM for DEHP, DEP and DBP, respectively. DEHP was the most potent inhibitor among the three plasticizers. They exhibited mixed-type linear inhibition with inclination towards competitive-non-competitive inhibition. They induced both tertiary and secondary structural changes in the enzyme. Quenching of intrinsic hsALDH fluorescence in a constant manner was observed with a binding constant (Kb) of 8.91 × 106, 2.80 × 104, and 1.31 × 105 M-1, for DEHP, DEP and DBP, respectively. Computational analysis showed that these plasticizers bind stably in the proximity of hsALDH catalytic site, reciprocating via non-covalent interactions with some of the amino acids which are evolutionary conserved. Therefore, exposure to these plasticizers inhibits hsALDH which increases the risk of aldehyde induced toxicity, adversely affecting oral health. The study has implications in assessing the safety of packaged food items which utilize phthalates.
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Affiliation(s)
- Sumbul Ahmad
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Abdullah Arsalan
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Amiruddin Hashmi
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Masood Alam Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, Buraydah, 51452, Saudi Arabia
| | - Waseem Ahmad Siddiqui
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Hina Younus
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
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20
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McKew BA, Johnson R, Clothier L, Skeels K, Ross MS, Metodiev M, Frenzel M, Gieg LM, Martin JW, Hough MA, Whitby C. Differential protein expression during growth on model and commercial mixtures of naphthenic acids in Pseudomonas fluorescens Pf-5. Microbiologyopen 2021; 10:e1196. [PMID: 34459546 PMCID: PMC8289671 DOI: 10.1002/mbo3.1196] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/21/2021] [Accepted: 04/21/2021] [Indexed: 01/18/2023] Open
Abstract
Naphthenic acids (NAs) are carboxylic acids with the formula (Cn H2n+Z O2 ) and are among the most toxic, persistent constituents of oil sands process-affected waters (OSPW), produced during oil sands extraction. Currently, the proteins and mechanisms involved in NA biodegradation are unknown. Using LC-MS/MS shotgun proteomics, we identified proteins overexpressed during the growth of Pseudomonas fluorescens Pf-5 on a model NA (4'-n-butylphenyl)-4-butanoic acid (n-BPBA) and commercial NA mixture (Acros). By day 11, >95% of n-BPBA was degraded. With Acros, a 17% reduction in intensity occurred with 10-18 carbon compounds of the Z family -2 to -14 (major NA species in this mixture). A total of 554 proteins (n-BPBA) and 631 proteins (Acros) were overexpressed during growth on NAs, including several transporters (e.g., ABC transporters), suggesting a cellular protective response from NA toxicity. Several proteins associated with fatty acid, lipid, and amino acid metabolism were also overexpressed, including acyl-CoA dehydrogenase and acyl-CoA thioesterase II, which catalyze part of the fatty acid beta-oxidation pathway. Indeed, multiple enzymes involved in the fatty acid oxidation pathway were upregulated. Given the presumed structural similarity between alkyl-carboxylic acid side chains and fatty acids, we postulate that P. fluorescens Pf-5 was using existing fatty acid catabolic pathways (among others) during NA degradation.
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Affiliation(s)
- Boyd A. McKew
- School of Life SciencesUniversity of EssexColchesterUK
| | | | - Lindsay Clothier
- Canada's Oil Sands Innovation AllianceCalgaryABCanada
- Department of Biological SciencesUniversity of CalgaryCalgaryABCanada
| | - Karl Skeels
- School of Life SciencesUniversity of EssexColchesterUK
| | - Matthew S. Ross
- Department of Physical SciencesMacEwan UniversityEdmontonABCanada
| | | | | | - Lisa M. Gieg
- Department of Biological SciencesUniversity of CalgaryCalgaryABCanada
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21
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Schwerdtfeger M, Desiderio V, Kobold S, Regad T, Zappavigna S, Caraglia M. Long non-coding RNAs in cancer stem cells. Transl Oncol 2021; 14:101134. [PMID: 34051619 PMCID: PMC8176362 DOI: 10.1016/j.tranon.2021.101134] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 04/29/2021] [Accepted: 05/19/2021] [Indexed: 12/11/2022] Open
Abstract
Long non coding RNAs are involved in the regulation of multiple cellular processes. Cancer stemness and escape from immunological anti-cancer mechanisms are important mechanisms of resistance to anti-cancer agents and are pivotal in controlling cancer development and metastases. Long non coding RNAs have deep effects on the immune-modulation and on the control of cancer stem cells. Several pathways involved in immunological escape and cancer stemness are modulated by long non coding RNAs. Targeting long non coding RNAs is a potential new strategy to control tumor development and metastases.
In recent years, it has been evidenced that the human transcriptome includes several types of non-coding RNAs (ncRNAs) that are mainly involved in the regulation of different cellular processes. Among ncRNAs, long-non-coding RNAs (lncRNAs) are defined as longer than 200 nucleotides and have been shown to be involved in several physiological and pathological events, including immune system regulation and cancer. Cancer stem cells (CSCs) are defined as a population of cancer cells that possess characteristics, such as resistance to standard treatments, cancer initiation, ability to undergo epithelial-to-mesenchymal transition, and the ability to invade, spread, and generate metastases. The cancer microenvironment, together with genetic and epigenetic factors, is fundamental for CSC maintenance and tumor growth and progression. Unsurprisingly, lncRNAs have been involved in both CSC biology and cancer progression, prognosis and recurrence. Here we review the most recent literature on IncRNAs involvement in CSC biology and function.
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Affiliation(s)
- Melanie Schwerdtfeger
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy; Center of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU Munich, Germany, Member of the German Center for Lung Research (DZL)
| | - Vincenzo Desiderio
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Sebastian Kobold
- Center of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU Munich, Germany, Member of the German Center for Lung Research (DZL); German Center for Translational Cancer Research (DKTK), Partner site Munich, Munich, Germany
| | - Tarik Regad
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Silvia Zappavigna
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Michele Caraglia
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy.
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22
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Shortall K, Djeghader A, Magner E, Soulimane T. Insights into Aldehyde Dehydrogenase Enzymes: A Structural Perspective. Front Mol Biosci 2021; 8:659550. [PMID: 34055881 PMCID: PMC8160307 DOI: 10.3389/fmolb.2021.659550] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/28/2021] [Indexed: 12/30/2022] Open
Abstract
Aldehyde dehydrogenases engage in many cellular functions, however their dysfunction resulting in accumulation of their substrates can be cytotoxic. ALDHs are responsible for the NAD(P)-dependent oxidation of aldehydes to carboxylic acids, participating in detoxification, biosynthesis, antioxidant and regulatory functions. Severe diseases, including alcohol intolerance, cancer, cardiovascular and neurological diseases, were linked to dysfunctional ALDH enzymes, relating back to key enzyme structure. An in-depth understanding of the ALDH structure-function relationship and mechanism of action is key to the understanding of associated diseases. Principal structural features 1) cofactor binding domain, 2) active site and 3) oligomerization mechanism proved critical in maintaining ALDH normal activity. Emerging research based on the combination of structural, functional and biophysical studies of bacterial and eukaryotic ALDHs contributed to the appreciation of diversity within the superfamily. Herewith, we discuss these studies and provide our interpretation for a global understanding of ALDH structure and its purpose–including correct function and role in disease. Our analysis provides a synopsis of a common structure-function relationship to bridge the gap between the highly studied human ALDHs and lesser so prokaryotic models.
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Affiliation(s)
- Kim Shortall
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Ahmed Djeghader
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Edmond Magner
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Tewfik Soulimane
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
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23
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Miura S, Watanabe Y, Saigusa R, Yamashita T, Nakamura K, Hirabayashi M, Miyagawa T, Yoshizaki A, Trojanowska M, Sato S, Asano Y. Fli1 deficiency suppresses RALDH1 activity of dermal dendritic cells and related induction of regulatory T cells: a possible role in scleroderma. Arthritis Res Ther 2021; 23:137. [PMID: 33964960 PMCID: PMC8106158 DOI: 10.1186/s13075-021-02520-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/26/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Aldehyde dehydrogenase 1 family member A1 (RALDH1)-producing dermal dendritic cells (DCs), a conventional DC subset regulating skin fibrosis, are decreased in the involved skin of patients with systemic sclerosis (SSc). In this study, we investigated the contribution of Fli1 deficiency, a potential predisposing factor of SSc, to the phenotypical alteration of RALDH1-producing dermal DCs by using SSc model mice and SSc skin samples. METHODS Bleomycin (BLM)-induced skin fibrosis was generated with Fli1+/- and wild-type mice. The proportions of DC and CD4+ T cell subsets were determined by flow cytometry in the dermis of BLM-treated mice. Fli1 expression in dermal DCs was evaluated by immunofluorescence with skin samples of SSc and healthy control subjects. RESULTS RALDH activity of dermal DCs was significantly decreased in BLM-treated Fli1+/- mice compared with BLM-treated wild-type mice, whereas the proportion of CD103-CD11b- dermal DCs, a major DC subset producing RALDH1 in response to BLM injection, was comparable between groups. Relevant to this finding, the proportion of regulatory T cells (Tregs) in the dermis was decreased in BLM-treated Fli1+/- mice relative to BLM-treated wild-type mice, while the proportions of Th1, Th2 and Th17 cells were unaltered. In the involved skin of SSc patients, Fli1 was downregulated in CD11c+ cells, including dermal DCs. CONCLUSIONS Fli1 deficiency inhibits RALDH1 activity of CD103-CD11b- dermal DCs and related induction of Tregs in BLM-treated mice. Considering Fli1 reduction in SSc dermal DCs, Fli1deficiency may impair the dermal DC-Treg system, contributing to the development of skin fibrosis in SSc.
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Affiliation(s)
- Shunsuke Miura
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yusuke Watanabe
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Ryosuke Saigusa
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takashi Yamashita
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kouki Nakamura
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Megumi Hirabayashi
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takuya Miyagawa
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Ayumi Yoshizaki
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Maria Trojanowska
- Arthritis Center, Boston University School of Medicine, Boston, MA, USA
| | - Shinichi Sato
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yoshihide Asano
- Department of Dermatology, University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
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24
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Peng W, Zhao ZZ, Jiao L, Wu T, Chen H, Zhang CY, Song JJ, Liu TYH, Wu LJ, Wang MJ, Chen J, Zhou Y, Ying BW. Prospective study of ALDH1A1 gene polymorphisms associated with antituberculosis drug-induced liver injury in western Chinese Han population. Microbiol Immunol 2021; 65:143-153. [PMID: 33527427 DOI: 10.1111/1348-0421.12877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/12/2021] [Accepted: 01/25/2021] [Indexed: 02/05/2023]
Abstract
Antituberculosis drug-induced liver injury (ATDILI) has received increasing attention globally, which may limit the effectiveness of antituberculosis (anti-TB) treatment. Many host genetic determinants of ATDILI have been identified recently. As little knowledge is currently available about the association between aldehyde dehydrogenase 1 family member A1 (ALDH1A1) polymorphisms and ATDILI, the association between their variants and the susceptibility to ATDILI was investigated. A total of 747 patients with TB treated by first-line anti-TB drugs were prospectively enrolled at West China Hospital. Genomic DNA was extracted from the peripheral blood sample of each patient and seven single-nucleotide polymorphisms (SNPs) of ALDH1A1 gene were screened and genotyped with a custom-designed 2×48-plex SNP Scan TM kit. The patients were followed up monthly to monitor the development of ATDILI. The C allele and the CA genotype of rs7852860 were significantly associated with an elevated risk for ATDILI (p = .006 and 0.005, respectively), which was consistent with the results in the dominant and additive models. No allele, genotype, or genetic model of the other six SNPs (rs3764435, rs348471, rs63319, rs610529, rs7027604, rs8187876) were found to be associated with susceptibility to ATDILI. The findings first demonstrate that rs7852860 variants in ALDH1A1 gene is associated with susceptibility to ATDILI in the Chinese Han population. Validation studies with larger sample sizes and other ethnic groups are needed to confirm the findings.
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Affiliation(s)
- Wu Peng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhen-Zhen Zhao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lin Jiao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Wu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Chun-Ying Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jia-Jia Song
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Tang-Yu-Heng Liu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Li-Juan Wu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Min-Jin Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jie Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Zhou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Bin-Wu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
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Zając A, Król SK, Rutkowski P, Czarnecka AM. Biological Heterogeneity of Chondrosarcoma: From (Epi) Genetics through Stemness and Deregulated Signaling to Immunophenotype. Cancers (Basel) 2021; 13:1317. [PMID: 33804155 PMCID: PMC8001927 DOI: 10.3390/cancers13061317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/05/2021] [Indexed: 12/11/2022] Open
Abstract
Chondrosarcoma (ChS) is a primary malignant bone tumor. Due to its heterogeneity in clinical outcomes and resistance to chemo- and radiotherapies, there is a need to develop new potential therapies and molecular targets of drugs. Many genes and pathways are involved in in ChS progression. The most frequently mutated genes are isocitrate dehydrogenase ½ (IDH1/2), collagen type II alpha 1 chain (COL2A1), and TP53. Besides the point mutations in ChS, chromosomal aberrations, such as 12q13 (MDM2) amplification, the loss of 9p21 (CDKN21/p16/INK4A and INK4A-p14ARF), and several gene fusions, commonly occurring in sarcomas, have been found. ChS involves the hypermethylation of histone H3 and the decreased methylation of some transcription factors. In ChS progression, changes in the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K-AKT-mTOR) and hedgehog pathways are known to play a role in tumor growth and chondrocyte proliferation. Due to recent discoveries regarding the potential of immunotherapy in many cancers, in this review we summarize the current state of knowledge concerning cellular markers of ChS and tumor-associated immune cells. This review compares the latest discoveries in ChS biology from gene alterations to specific cellular markers, including advanced molecular pathways and tumor microenvironment, which can help in discovering new potential checkpoints in inhibitory therapy.
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Affiliation(s)
- Agnieszka Zając
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (A.Z.); (P.R.)
| | - Sylwia K. Król
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland;
| | - Piotr Rutkowski
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (A.Z.); (P.R.)
| | - Anna M. Czarnecka
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (A.Z.); (P.R.)
- Department of Experimental Pharmacology, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-176 Warsaw, Poland
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Abstract
Drug metabolizing enzymes catalyze the biotransformation of many of drugs and chemicals. The drug metabolizing enzymes are distributed among several evolutionary families and catalyze a range of detoxication reactions, including oxidation/reduction, conjugative, and hydrolytic reactions that serve to detoxify potentially toxic compounds. This detoxication function requires that drug metabolizing enzymes exhibit substrate promiscuity. In addition to their catalytic functions, many drug metabolizing enzymes possess functions unrelated to or in addition to catalysis. Such proteins are termed 'moonlighting proteins' and are defined as proteins with multiple biochemical or biophysical functions that reside in a single protein. This review discusses the diverse moonlighting functions of drug metabolizing enzymes and the roles they play in physiological functions relating to reproduction, vision, cell signaling, cancer, and transport. Further research will likely reveal new examples of moonlighting functions of drug metabolizing enzymes.
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Affiliation(s)
- Philip G Board
- John Curtin School of Medical Research, ANU College of Health and Medicine, The Australian National University, Canberra, ACT, Australia
| | - M W Anders
- Department of Pharmacology and Physiology, University of Rochester Medical Center, New York, NY, USA
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Pisoschi AM, Pop A, Iordache F, Stanca L, Predoi G, Serban AI. Oxidative stress mitigation by antioxidants - An overview on their chemistry and influences on health status. Eur J Med Chem 2020; 209:112891. [PMID: 33032084 DOI: 10.1016/j.ejmech.2020.112891] [Citation(s) in RCA: 240] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/30/2020] [Accepted: 09/24/2020] [Indexed: 12/11/2022]
Abstract
The present review paper focuses on the chemistry of oxidative stress mitigation by antioxidants. Oxidative stress is understood as a lack of balance between the pro-oxidant and the antioxidant species. Reactive oxygen species in limited amounts are necessary for cell homeostasis and redox signaling. Excessive reactive oxygenated/nitrogenated species production, which counteracts the organism's defense systems, is known as oxidative stress. Sustained attack of endogenous and exogenous ROS results in conformational and oxidative alterations in key biomolecules. Chronic oxidative stress is associated with oxidative modifications occurring in key biomolecules: lipid peroxidation, protein carbonylation, carbonyl (aldehyde/ketone) adduct formation, nitration, sulfoxidation, DNA impairment such strand breaks or nucleobase oxidation. Oxidative stress is tightly linked to the development of cancer, diabetes, neurodegeneration, cardiovascular diseases, rheumatoid arthritis, kidney disease, eye disease. The deleterious action of reactive oxygenated species and their role in the onset and progression of pathologies are discussed. The results of oxidative attack become themselves sources of oxidative stress, becoming part of a vicious cycle that amplifies oxidative impairment. The term antioxidant refers to a compound that is able to impede or retard oxidation, acting at a lower concentration compared to that of the protected substrate. Antioxidant intervention against the radicalic lipid peroxidation can involve different mechanisms. Chain breaking antioxidants are called primary antioxidants, acting by scavenging radical species, converting them into more stable radicals or non-radical species. Secondary antioxidants quench singlet oxygen, decompose peroxides, chelate prooxidative metal ions, inhibit oxidative enzymes. Moreover, four reactivity-based lines of defense have been identified: preventative antioxidants, radical scavengers, repair antioxidants, and those relying on adaptation mechanisms. The specific mechanism of a series of endogenous and exogenous antioxidants in particular aspects of oxidative stress, is detailed. The final section resumes critical conclusions regarding antioxidant supplementation.
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Affiliation(s)
- Aurelia Magdalena Pisoschi
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, 105 Splaiul Independentei, 050097, Bucharest, Romania.
| | - Aneta Pop
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Florin Iordache
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Loredana Stanca
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Gabriel Predoi
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Andreea Iren Serban
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, 105 Splaiul Independentei, 050097, Bucharest, Romania
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Etienne J, Joanne P, Catelain C, Riveron S, Bayer AC, Lafable J, Punzon I, Blot S, Agbulut O, Vilquin JT. Aldehyde dehydrogenases contribute to skeletal muscle homeostasis in healthy, aging, and Duchenne muscular dystrophy patients. J Cachexia Sarcopenia Muscle 2020; 11:1047-1069. [PMID: 32157826 PMCID: PMC7432589 DOI: 10.1002/jcsm.12557] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 12/12/2019] [Accepted: 01/30/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Aldehyde dehydrogenases (ALDHs) are key players in cell survival, protection, and differentiation via the metabolism and detoxification of aldehydes. ALDH activity is also a marker of stem cells. The skeletal muscle contains populations of ALDH-positive cells amenable to use in cell therapy, whose distribution, persistence in aging, and modifications in myopathic context have not been investigated yet. METHODS The Aldefluor® (ALDEF) reagent was used to assess the ALDH activity of muscle cell populations, whose phenotypic characterizations were deepened by flow cytometry. The nature of ALDH isoenzymes expressed by the muscle cell populations was identified in complementary ways by flow cytometry, immunohistology, and real-time PCR ex vivo and in vitro. These populations were compared in healthy, aging, or Duchenne muscular dystrophy (DMD) patients, healthy non-human primates, and Golden Retriever dogs (healthy vs. muscular dystrophic model, Golden retriever muscular dystrophy [GRMD]). RESULTS ALDEF+ cells persisted through muscle aging in humans and were equally represented in several anatomical localizations in healthy non-human primates. ALDEF+ cells were increased in dystrophic individuals in humans (nine patients with DMD vs. five controls: 14.9 ± 1.63% vs. 3.6 ± 0.39%, P = 0.0002) and dogs (three GRMD dogs vs. three controls: 10.9 ± 2.54% vs. 3.7 ± 0.45%, P = 0.049). In DMD patients, such increase was due to the adipogenic ALDEF+ /CD34+ populations (11.74 ± 1.5 vs. 2.8 ± 0.4, P = 0.0003), while in GRMD dogs, it was due to the myogenic ALDEF+ /CD34- cells (3.6 ± 0.6% vs. 1.03 ± 0.23%, P = 0.0165). Phenotypic characterization associated the ALDEF+ /CD34- cells with CD9, CD36, CD49a, CD49c, CD49f, CD106, CD146, and CD184, some being associated with myogenic capacities. Cytological and histological analyses distinguished several ALDH isoenzymes (ALDH1A1, 1A2, 1A3, 1B1, 1L1, 2, 3A1, 3A2, 3B1, 3B2, 4A1, 7A1, 8A1, and 9A1) expressed by different cell populations in the skeletal muscle tissue belonging to multinucleated fibres, or myogenic, endothelial, interstitial, and neural lineages, designing them as potential new markers of cell type or of metabolic activity. Important modifications were noted in isoenzyme expression between healthy and DMD muscle tissues. The level of gene expression of some isoenzymes (ALDH1A1, 1A3, 1B1, 2, 3A2, 7A1, 8A1, and 9A1) suggested their specific involvement in muscle stability or regeneration in situ or in vitro. CONCLUSIONS This study unveils the importance of the ALDH family of isoenzymes in the skeletal muscle physiology and homeostasis, suggesting their roles in tissue remodelling in the context of muscular dystrophies.
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Affiliation(s)
- Jessy Etienne
- Sorbonne Université, INSERM, AIM, Centre de Recherche en Myologie, UMRS 974, AP-HP, Hôpital Pitié Salpêtrière, Paris, France.,Department of Bioengineering and QB3 Institute, University of California, Berkeley, CA, USA
| | - Pierre Joanne
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris-Seine, IBPS, UMR 8256 Biological Adaptation and Ageing, Paris, France
| | - Cyril Catelain
- Sorbonne Université, INSERM, AIM, Centre de Recherche en Myologie, UMRS 974, AP-HP, Hôpital Pitié Salpêtrière, Paris, France
| | - Stéphanie Riveron
- Sorbonne Université, INSERM, AIM, Centre de Recherche en Myologie, UMRS 974, AP-HP, Hôpital Pitié Salpêtrière, Paris, France
| | - Alexandra Clarissa Bayer
- Sorbonne Université, INSERM, AIM, Centre de Recherche en Myologie, UMRS 974, AP-HP, Hôpital Pitié Salpêtrière, Paris, France
| | - Jérémy Lafable
- Sorbonne Université, INSERM, AIM, Centre de Recherche en Myologie, UMRS 974, AP-HP, Hôpital Pitié Salpêtrière, Paris, France
| | - Isabel Punzon
- Université Paris-Est Créteil, INSERM, Institut Mondor de Recherche Biomédicale, IMRB, École Nationale Vétérinaire d'Alfort, ENVA, U955-E10, Maisons-Alfort, France
| | - Stéphane Blot
- Université Paris-Est Créteil, INSERM, Institut Mondor de Recherche Biomédicale, IMRB, École Nationale Vétérinaire d'Alfort, ENVA, U955-E10, Maisons-Alfort, France
| | - Onnik Agbulut
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris-Seine, IBPS, UMR 8256 Biological Adaptation and Ageing, Paris, France
| | - Jean-Thomas Vilquin
- Sorbonne Université, INSERM, AIM, Centre de Recherche en Myologie, UMRS 974, AP-HP, Hôpital Pitié Salpêtrière, Paris, France
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Younus H, Arsalan A, Alam MF. Arsenic inhibits human salivary aldehyde dehydrogenase: Mechanism and a population-based study. CHEMOSPHERE 2020; 243:125358. [PMID: 31759211 DOI: 10.1016/j.chemosphere.2019.125358] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
Human salivary aldehyde dehydrogenase (hsALDH) is an important detoxifying enzyme and maintains oral health. Subjects with low hsALDH activity are at a risk of developing oral cancers. Arsenic (As) toxicity causes many health problems in humans. The objective of this population-based study was to correlate As contamination and hence low hsALDH activity with high incidence of cancer cases in Bareilly district of India. Here, it was observed that As inhibited hsALDH (IC50 value: 33.5 ± 2.5 μM), and the mechanism of inhibition was mixed type (in between competitive and non-competitive). Binding of As to hsALDH changed the conformation of the enzyme. A static quenching mechanism was observed between the enzyme and As with a binding constant (Kb) of 9.77 × 104 M-1. There is one binding site for As on hsALDH molecule. Further, the activity of hsALDH in volunteers living in regions of higher As levels in drinking water (Bahroli and Mirganj village of Bareilly district, India), and those living in region having safe levels of As (Aligarh city, India) was determined. The As level in the saliva samples of the volunteers was determined by inductively coupled plasma mass spectroscopy (ICP-MS). Low hsALDH activity was found in volunteers living in the region of higher As levels. The activity of hsALDH and As concentration in the saliva was found to be negatively correlated (r = - 0.427, p < 0.0001). Therefore, we speculate that the high incidence of cancer cases reported in Bareilly district may be due to higher As contamination.
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Affiliation(s)
- Hina Younus
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
| | - Abdullah Arsalan
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Md Fazle Alam
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
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Dinavahi SS, Gowda R, Gowda K, Bazewicz CG, Chirasani VR, Battu MB, Berg A, Dokholyan NV, Amin S, Robertson GP. Development of a Novel Multi-Isoform ALDH Inhibitor Effective as an Antimelanoma Agent. Mol Cancer Ther 2020; 19:447-459. [PMID: 31754071 PMCID: PMC10763724 DOI: 10.1158/1535-7163.mct-19-0360] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 08/22/2019] [Accepted: 11/13/2019] [Indexed: 11/16/2022]
Abstract
The aldehyde dehydrogenases (ALDH) are a major family of detoxifying enzymes that contribute to cancer progression and therapy resistance. ALDH overexpression is associated with a poor prognosis in many cancer types. The use of multi-ALDH isoform or isoform-specific ALDH inhibitors as anticancer agents is currently hindered by the lack of viable candidates. Most multi-ALDH isoform inhibitors lack bioavailability and are nonspecific or toxic, whereas most isoform-specific inhibitors are not effective as monotherapy due to the overlapping functions of ALDH family members. The present study details the development of a novel, potent, multi-isoform ALDH inhibitor, called KS100. The rationale for drug development was that inhibition of multiple ALDH isoforms might be more efficacious for cancer compared with isoform-specific inhibition. Enzymatic IC50s of KS100 were 207, 1,410, and 240 nmol/L toward ALDH1A1, 2, and 3A1, respectively. Toxicity of KS100 was mitigated by development of a nanoliposomal formulation, called NanoKS100. NanoKS100 had a loading efficiency of approximately 69% and was stable long-term. NanoKS100 was 5-fold more selective for killing melanoma cells compared with normal human fibroblasts. NanoKS100 administered intravenously at a submaximal dose (3-fold lower) was effective at inhibiting xenografted melanoma tumor growth by approximately 65% without organ-related toxicity. Mechanistically, inhibition by KS100 significantly reduced total cellular ALDH activity to increase reactive oxygen species generation, lipid peroxidation, and accumulation of toxic aldehydes leading to apoptosis and autophagy. Collectively, these data suggest the successful preclinical development of a nontoxic, bioavailable, nanoliposomal formulation containing a novel multi-ALDH isoform inhibitor effective in the treatment of cancer.
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Affiliation(s)
- Saketh S Dinavahi
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- The Melanoma and Skin Cancer Center, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- The Melanoma Therapeutics Program, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Raghavendra Gowda
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- The Melanoma and Skin Cancer Center, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- The Melanoma Therapeutics Program, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Foreman Foundation for Melanoma Research, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Krishne Gowda
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Christopher G Bazewicz
- The Melanoma and Skin Cancer Center, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- The Melanoma Therapeutics Program, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Department of Dermatology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Venkat R Chirasani
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Madhu Babu Battu
- Laboratory of Molecular Cell Biology, Centre for DNA Fingerprinting and Diagnostics, Uppal, Hyderabad, India
| | - Arthur Berg
- Department of Public Health Sciences, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Nikolay V Dokholyan
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Shantu Amin
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Gavin P Robertson
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania.
- The Melanoma and Skin Cancer Center, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- The Melanoma Therapeutics Program, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Foreman Foundation for Melanoma Research, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Department of Dermatology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Department of Pathology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Department of Surgery, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
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31
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RNA-Seq Study of Hepatic Response of Yellow-Feather Chickens to Acute Heat Stress. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2019-0060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Abstract
The yellow-feather broiler is a popular poultry breed in Asia, particularly in China. In this study, we performed RNA-seq analysis to identify differentially expressed genes (deGs) in the liver of yellow-feather broilers that had been subjected to acute heat stress treatment (38±1°C for 4 h, recovery 2 h) and determine the response of the liver to high temperature and its effects on yellow-feather broiler physiology. We found that the cloacal temperature and respiratory rate of yellow-feather chickens were significantly increased immediately after the initiation of acute heat stress (38°c) treatment. And after recovery for 2 h, there was no difference in the cloacal temperature and respiratory rate between the acute heat stress and control groups. A total of 834 DEGs were observed in response to heat stress by RNA-seq. Almost half of the DEGs were involved in the lipid and energy metabolism, including fatty acid metabolism (ACOX1, ACACA, ACSL1, ACSL6, ACAA1, ACAA2, HADHB, and FASN) and propanoate metabolism (ACSS2, ALDH2, ACACA, DLAT, ALDH7A1, MDH1, ME1, ABAT, SUCLG2, and ACSS3). Our findings provide the context for RNA-seq studies in the liver of yellow-feather chickens and suggest that the liver of yellow-feather broilers has the lipid and energy metabolism physiological mechanisms activated in response to heat stress.
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Flores-Ramírez I, Baranda-Avila N, Langley E. Breast Cancer Stem Cells and Sex Steroid Hormones. Curr Stem Cell Res Ther 2019; 14:398-404. [PMID: 30095060 DOI: 10.2174/1574888x13666180810121415] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 07/13/2018] [Accepted: 07/17/2018] [Indexed: 12/14/2022]
Abstract
Breast cancer stem cells (BCSCs) are a small population of tumor-initiating cells that express stem cell-associated markers. In recent years, their properties and mechanisms of regulation have become the focus of intense research due to their intrinsic resistance to conventional cancer therapies. This review describes breast cancer stem cell origin, signaling pathways involved in self-renewal, such as Wnt, Notch and Hedgehog, biomarkers linked to stemness, and the role of sex steroid hormones in BCSC regulation.
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Affiliation(s)
- Iván Flores-Ramírez
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, CDMX, México.,Departamento de Investigacion Basica, Instituto Nacional de Cancerologia, Av. San Fernando No. 22, Col. Seccion XVI, Tlalpan 14080, CDMX, Mexico
| | - Noemi Baranda-Avila
- Departamento de Investigacion Basica, Instituto Nacional de Cancerologia, Av. San Fernando No. 22, Col. Seccion XVI, Tlalpan 14080, CDMX, Mexico
| | - Elizabeth Langley
- Departamento de Investigacion Basica, Instituto Nacional de Cancerologia, Av. San Fernando No. 22, Col. Seccion XVI, Tlalpan 14080, CDMX, Mexico
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Aldehyde dehydrogenase-positive melanoma stem cells in tumorigenesis, drug resistance and anti-neoplastic immunotherapy. Mol Biol Rep 2019; 47:1435-1443. [PMID: 31838656 DOI: 10.1007/s11033-019-05227-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 12/07/2019] [Indexed: 02/07/2023]
Abstract
Cancer stem cells (CSCs), a rare subset of cancer cells, are well known for their self-renewing capacity. CSCs play a critical role in therapeutic failure and are responsible for poor prognosis in leukemia and various solid tumors. However, it is still unclear how CSCs initiate carcinogenesis and evade the immune response. In humans, the melanoma initiating cells (MICs) are recognized as the CSCs in melanomas, and were verified to possess CSC potentials. The enzymatic system, aldehyde dehydrogenase (ALDH) is considered to be a specific marker for CSCs in several tumors. The expression of ALDH in MICs may be closely correlated with phenotypic heterogeneity, melanoma-genesis, metastasis, and drug resistance. The ALDH+ CSCs/MICs not only serve as an indicator for therapeutic efficacy, but have also become a target for the treat of melanoma. In this review, we initially introduce the multiple capacities of MICs in melanoma. Then, we summarize in vivo and in vitro studies that illustrate the relationship between ALDH and MICs. Furthermore, understanding of chemotherapy resistance in melanoma relies on ALDH+ MICs. Finally, we review studies that focus on melanoma immunotherapies, rendering ALDH a potential marker to evaluate the efficacy of anti-neoplastic therapies or an adjuvant anti-melanoma target.
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34
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Keyvani V, Farshchian M, Esmaeili SA, Yari H, Moghbeli M, Nezhad SRK, Abbaszadegan MR. Ovarian cancer stem cells and targeted therapy. J Ovarian Res 2019; 12:120. [PMID: 31810474 PMCID: PMC6896744 DOI: 10.1186/s13048-019-0588-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 11/04/2019] [Indexed: 12/18/2022] Open
Abstract
Background Ovarian cancer has the highest ratio of mortality among gynecologic malignancies. Chemotherapy is one of the most common treatment options for ovarian cancer. However, tumor relapse in patients with advanced tumor stage is still a therapeutic challenge for its clinical management. Main body Therefore, it is required to clarify the molecular biology and mechanisms which are involved in chemo resistance to improve the survival rate of ovarian cancer patients. Cancer stem cells (CSCs) are a sub population of tumor cells which are related to drug resistance and tumor relapse. Conclusion In the present review, we summarized the recent findings about the role of CSCs in tumor relapse and drug resistance among ovarian cancer patients. Moreover, we focused on the targeted and combinational therapeutic methods against the ovarian CSCs.
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Affiliation(s)
- Vahideh Keyvani
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Moein Farshchian
- Stem Cell and Regenerative Medicine Research Group, Academic Center for Education, Culture and Research (ACECR), Khorasan Razavi Branch, Mashhad, Iran
| | - Seyed-Alireza Esmaeili
- Immunology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Immunology, Faculty of Medicine, Mashhad University of Medical Science, Mashhad, Iran
| | - Hadi Yari
- Human Genetics Division, Medical Biotechnology Department, National Institute of Genetics Engineering and Biotechnology, Tehran, Iran
| | - Meysam Moghbeli
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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35
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Boltze J, Jolkkonen J. Safety evaluation of intra-arterial cell delivery in stroke patients-a framework for future trials. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:S271. [PMID: 32015990 DOI: 10.21037/atm.2019.12.07] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Johannes Boltze
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Jukka Jolkkonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.,Institute of Clinical Medicine-Neurology, University of Eastern Finland, Kuopio, Finland
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36
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Isoherranen N, Zhong G. Biochemical and physiological importance of the CYP26 retinoic acid hydroxylases. Pharmacol Ther 2019; 204:107400. [PMID: 31419517 PMCID: PMC6881548 DOI: 10.1016/j.pharmthera.2019.107400] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 08/06/2019] [Indexed: 12/19/2022]
Abstract
The Cytochrome P450 (CYP) family 26 enzymes contribute to retinoic acid (RA) metabolism and homeostasis in humans, mammals and other chordates. The three CYP26 family enzymes, CYP26A1, CYP26B1 and CYP26C1 have all been shown to metabolize all-trans-retinoic acid (atRA) it's 9-cisRA and 13-cisRA isomers and primary metabolites 4-OH-RA and 4-oxo-RA with high efficiency. While no crystal structures of CYP26 enzymes are available, the binding of various ligands has been extensively explored via homology modeling. All three CYP26 enzymes are inducible by treatment with atRA in various prenatal and postnatal tissues and cell types. However, current literature shows that in addition to regulation by atRA, CYP26 enzyme expression is also regulated by other endogenous processes and inflammatory cytokines. In humans and in animal models the expression patterns of CYP26 enzymes have been shown to be tissue and cell type specific, and the expression of the CYP26 enzymes is believed to regulate the formation of critical atRA concentration gradients in various tissue types. Yet, very little data exists on direct disease associations of altered CYP26 expression or activity. Nevertheless, data is emerging describing a variety of human genetic variations in the CYP26 enzymes that are associated with different pathologies. Interestingly, some of these genetic variants result in increased activity of the CYP26 enzymes potentially leading to complex gene-environment interactions due to variability in dietary intake of retinoids. This review highlights the current knowledge of structure-function of CYP26 enzymes and focuses on their role in human retinoid metabolism in different tissues.
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Affiliation(s)
- Nina Isoherranen
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA, USA.
| | - Guo Zhong
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA, USA
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Widjaja-Adhi MAK, Golczak M. The molecular aspects of absorption and metabolism of carotenoids and retinoids in vertebrates. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1865:158571. [PMID: 31770587 DOI: 10.1016/j.bbalip.2019.158571] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 02/08/2023]
Abstract
Vitamin A is an essential nutrient necessary for numerous basic physiological functions, including reproduction and development, immune cell differentiation and communication, as well as the perception of light. To evade the dire consequences of vitamin A deficiency, vertebrates have evolved specialized metabolic pathways that enable the absorption, transport, and storage of vitamin A acquired from dietary sources as preformed retinoids or provitamin A carotenoids. This evolutionary advantage requires a complex interplay between numerous specialized retinoid-transport proteins, receptors, and enzymes. Recent advances in molecular and structural biology resulted in a rapid expansion of our understanding of these processes at the molecular level. This progress opened new avenues for the therapeutic manipulation of retinoid homeostasis. In this review, we summarize current research related to the biochemistry of carotenoid and retinoid-processing proteins with special emphasis on the structural aspects of their physiological actions. This article is part of a Special Issue entitled Carotenoids recent advances in cell and molecular biology edited by Johannes von Lintig and Loredana Quadro.
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Affiliation(s)
- Made Airanthi K Widjaja-Adhi
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States of America
| | - Marcin Golczak
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States of America; Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States of America.
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Citral Inhibition of Human Salivary Aldehyde Dehydrogenase. Cell Biochem Biophys 2019; 78:31-42. [PMID: 31732914 DOI: 10.1007/s12013-019-00891-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 10/17/2019] [Indexed: 01/07/2023]
Abstract
Human salivary aldehyde dehydrogenase (hsALDH) protects us from the toxic effect of aldehydes. It has both diagnostic and therapeutic importance. Citral possesses many biological and pharmacological properties. The aim of this work was to investigate the inhibitory effect and the mechanism of inhibition of citral on hsALDH. Citral inhibits the dehydrogenase activity of hsALDH. It decreased the substrate affinity and to a lesser extent, the catalytic efficiency of hsALDH. Citral showed linear mixed-type inhibition with a higher tendency of competitive behavior with little, but significant, non-competitive inhibition. The nucleophilicity of active site Cys residue is not a significant contributing factor in the inhibition process. Citral shows uncompetitive inhibition towards the co-enzyme (NAD+). α-helix and β-sheet content of the enzyme were changed in presence of citral. Biophysical studies showed that citral quenches the intrinsic fluorescence of hsALDH in a static manner by forming complex with the enzyme. Molecular docking study showed that both the isomers of citral bind to the catalytic site of hsALDH interacting with few evolutionary preserved amino acid residues through multiple non-covalent interactions. Ligand efficiency metrics values indicate that citral is an efficient ligand for the enzyme in terms of its physicochemical and pharmacokinetic properties.
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Xu YC, Hou JQ, Zhu WJ, Li P. Sjogren-Larsson syndrome associated hypermelanosis. J Cosmet Dermatol 2019; 19:789-798. [PMID: 31697031 DOI: 10.1111/jocd.13209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/12/2019] [Accepted: 10/16/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND/OBJECTIVES Sjogren - Larsson syndrome (SLS) is a rare autosomal recessive disease of the mutation ALDH3A2 that identifies a part of fatty acids for fatty aldehyde dehydrogenase: NAD-oxidoreductase enzyme complex. This study aimed to access variant ALDH3A2 gene coded for FALDH and products regulating pathogenic melanogenesis owing to increased oxidative stress and reactive oxygen species resulting in DNA harm in SLS. By turning them into fatty acids, FALDH avoids the accumulation of toxic fatty aldehydes. The mutation results in the accumulation of aldehyde-modified lipids or fatty alcohols that may interfere with skin and brain function. METHODS In Nov 2018, we performed a literature search in PubMed for clinical studies, clinical trials, case reports, controlled trials, randomized controlled trials, and systemic reviews. The search terms we used were "SJOGREN-LARSSON SYNDROME" AND "HYPERMELANNOSIS" OR "FALDH" (from 1985). The search resulted in 1,289 articles, out of these 95 articles met our inclusion exclusion criteria. Our inclusion criteria included relevant original articles relevant, critical systemic reviews, and crucial referenced articles, ex-clusion criteria included duplicates and articles not published in English language. RESULTS Toxicity of long-chain aldehydes to FALDH-deficient cells owing to accumulation under the profound epidermis layer improves oxidative stress in the cell resulting in keratinocyte hyperproliferation. CONCLUSION While it continues to be determined whether accumulated fatty alcohol and fatty aldehydes obtained from ether glycerolipids and sphingolipids improve the susceptibility of melanocytes and their element accountable for skin hyperpigmentation to biological colour.
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Affiliation(s)
- Yang-Chun Xu
- Department of Dermatology, The Second Hospital of Jilin University, Changchun, China
| | - Ji-Qiu Hou
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
| | - Wen-Jing Zhu
- Department of Dermatology, The Second Hospital of Jilin University, Changchun, China
| | - Ping Li
- Department of Developmental Pediatrics, The Second Hospital of Jilin University, Changchun, China
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Jia Y, Jiang J, Zhao K, Zhang T, Sun P, Peng J, Yang Q, Qian Y. Disulfiram suppressed ethanol promoted RANKL-induced osteoclastogenesis in vitro and ethanol-induced osteoporosis in vivo via ALDH1A1-NFATc1 axis. Aging (Albany NY) 2019; 11:8103-8119. [PMID: 31596733 PMCID: PMC6814600 DOI: 10.18632/aging.102279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/05/2019] [Indexed: 12/20/2022]
Abstract
Excessive alcohol consumption is positively related to osteoporosis, and its treatment strategies are poorly developed. Disulfiram inhibits receptor activator of nuclear factor kappa-B ligand (RANKL)-induced osteoclastogenesis; however, whether it can be used for ethanol-induced osteoclastogenesis and its underlying mechanism are still unclear. In this study, we demonstrated that ethanol promoted RANKL-induced osteoclast formation and bone resorption, whereas, disulfiram suppressed ethanol-induced osteoclastogenesis by abrogating the expression of nuclear factor of activated T cell c1 (NFATc1) in vitro. Further analysis revealed that aldehyde dehydrogenase 1A1 (ALDH1A1) is important for the expression of NFATc1, the master regulator of osteoclast differentiation. Furthermore, we showed that disulfiram protected ethanol-induced osteoporosis in vivo. Overall, our study provides promising evidence that disulfiram can be used as a treatment strategy for alcohol-related osteoporosis via the ALDH1A1T–NFATc1 axis.
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Affiliation(s)
- Yewei Jia
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China.,Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 312000, China
| | - Jiawei Jiang
- Department of Urinary Surgery, Jinhua Central Hospital (Jinhua Hospital, Zhejiang University School of Medicine, Jinhua), Zhejiang 321000, China
| | - Kangxian Zhao
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Tan Zhang
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Peng Sun
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Jiaxuan Peng
- Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Guangxi 530021, China
| | - Qichang Yang
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
| | - Yu Qian
- Department of Orthopaedics, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing), Zhejiang 312000, China
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Dinavahi SS, Bazewicz CG, Gowda R, Robertson GP. Aldehyde Dehydrogenase Inhibitors for Cancer Therapeutics. Trends Pharmacol Sci 2019; 40:774-789. [DOI: 10.1016/j.tips.2019.08.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 07/29/2019] [Accepted: 08/08/2019] [Indexed: 02/07/2023]
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High Aldehyde Dehydrogenase Levels Are Detectable in the Serum of Patients with Lung Cancer and May Be Exploited as Screening Biomarkers. JOURNAL OF ONCOLOGY 2019; 2019:8970645. [PMID: 31534455 PMCID: PMC6724438 DOI: 10.1155/2019/8970645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 05/20/2019] [Accepted: 07/04/2019] [Indexed: 12/12/2022]
Abstract
Objectives Since early detection improves overall survival in lung cancer, identification of screening biomarkers for patients at risk represents an area of intense investigation. Tumor liberated protein (TLP) has been previously described as a tumor-associated antigen (complex) present in the sera from lung cancer patients. Here, we set out to identify the nature of TLP to develop this as a potential biomarker for lung cancer screening. Materials and Methods Beginning from the peptide epitope RTNKEASI previously identified from the TLP complex, we produced a rabbit anti-RTNKEASI serum and evaluated it in the lung cancer cell line A549 by means of immunoblot and peptide completion assay (PCA). The TLP sequence identification was conducted by mass spectrometry. The detected protein was, then, analyzed in patients with non-small cell lung cancer (NSCLC) and benign lung pathologies and healthy donors, by ELISA. Results The anti-RTNKEASI antiserum detected and immunoprecipitated a 55 kDa protein band in the lysate of A549 cells identified as aldehyde dehydrogenase isoform 1A1, revealing the molecular nature of at least one component of the previously described TLP complex. Next, we screened blood samples from a non-tumor cohort of 26 patients and 45 NSCLC patients with different disease stages for the presence of ALDH1A1 and global ALDH. This analysis indicated that serum positivity was highly restricted to patients with NSCLC (ALDH p < 0.001; ALDH1A1 p=0.028). Interestingly, the global ALDH test resulted positive in more NSCLC samples compared to the ALDH1A1 test, suggesting that other ALDH isoforms might add to the sensitivity of the assay. Conclusion Our data indicate that ALDH levels are elevated in the sera of NSCLC patients, even with early stage disease, and may thus be evaluated as part of a marker panel for non-invasive detection of NSCLC.
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Barbato L, Bocchetti M, Di Biase A, Regad T. Cancer Stem Cells and Targeting Strategies. Cells 2019; 8:cells8080926. [PMID: 31426611 PMCID: PMC6721823 DOI: 10.3390/cells8080926] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/05/2019] [Accepted: 08/15/2019] [Indexed: 02/06/2023] Open
Abstract
Chemoresistance is a major problem in cancer therapy as cancer cells develop mechanisms that counteract the effect of chemotherapeutic compounds, leading to relapse and the development of more aggressive cancers that contribute to poor prognosis and survival rates of treated patients. Cancer stem cells (CSCs) play a key role in this event. Apart from their slow proliferative property, CSCs have developed a range of cellular processes that involve drug efflux, drug enzymatic inactivation and other mechanisms. In addition, the microenvironment where CSCs evolve (CSC niche), effectively contributes to their role in cancer initiation, progression and chemoresistance. In the CSC niche, immune cells, mesenchymal stem cells (MSCs), endothelial cells and cancer associated fibroblasts (CAFs) contribute to the maintenance of CSC malignancy via the secretion of factors that promote cancer progression and resistance to chemotherapy. Due to these factors that hinder successful cancer therapies, CSCs are a subject of intense research that aims at better understanding of CSC behaviour and at developing efficient targeting therapies. In this review, we provide an overview of cancer stem cells, their role in cancer initiation, progression and chemoresistance, and discuss the progress that has been made in the development of CSC targeted therapies.
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Affiliation(s)
- Luisa Barbato
- The John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Marco Bocchetti
- The John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Anna Di Biase
- The John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Tarik Regad
- The John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK.
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Coronado RE, Somaraki-Cormier M, Ong JL, Halff GA. Hepatocyte-like cells derived from human amniotic epithelial, bone marrow, and adipose stromal cells display enhanced functionality when cultured on decellularized liver substrate. Stem Cell Res 2019; 38:101471. [PMID: 31163390 DOI: 10.1016/j.scr.2019.101471] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/30/2019] [Accepted: 05/25/2019] [Indexed: 01/02/2023] Open
Abstract
Transplantation of primary hepatocytes has been used in treatments for various liver pathologies and end-stage liver disease. However, shortage of donor tissue and the inability of hepatocyte proliferation in vitro have lead to alternative methods such as stem cell-derived hepatocyte-like cells (HLCs). Mesenchymal stromal/stem cells, and amniotic epithelial cells were isolated from human bone marrow (BM-MSCs), lipoaspirates (ASCs), and amniotic tissue (AECs) respectively. All cells were differentiated into HLCs on plates coated with Type I collagen or Porcine Liver Extracellular Matrix (PLECM-AA) matrix. Flow cytometry of BM-MSCs and ASCs, and AECs showed high expression of MSC-specific and embryonic stem cell markers respectively. All cell types differentiated into osteocytes, chondrocytes, and adipocytes. All cell type-derived HLCs presented the typical cuboidal primary hepatocyte morphology on PLECM-AA and fewer vacuoles (AECs) compared to HLCs cultured on type I collagen. Gene analysis of all cell type-derived HLCs cultured on PLECM-AA revealed higher upregulation of genes involved in drug transportation and metabolism compared to HLCs cultured on type I collagen. Although, HLCs cultured on PLECM-AA displayed some hepatocyte-related function and bioactivity, overall gene expression was lower compared to that of primary hepatocytes suggesting that caution should be taken when considering using HLCs to replace total hepatocyte functionality.
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Affiliation(s)
- Ramon E Coronado
- Lester Smith Medical Research Institute, San Antonio, TX 78229, USA.
| | | | - Joo L Ong
- Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Glenn A Halff
- Transplant Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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Laskar AA, Danishuddin, Khan SH, Subbarao N, Younus H. Enhancement in the Catalytic Activity of Human Salivary Aldehyde Dehydrogenase by Alliin from Garlic: Implications in Aldehyde Toxicity and Oral Health. Curr Pharm Biotechnol 2019; 20:506-516. [PMID: 31038061 DOI: 10.2174/1389201020666190416140817] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/23/2019] [Accepted: 04/09/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Lower human salivary aldehyde dehydrogenase (hsALDH) activity increases the risk of aldehyde mediated pathogenesis including oral cancer. Alliin, the bioactive compound of garlic, exhibits many beneficial health effects. OBJECTIVE To study the effect of alliin on hsALDH activity. METHODS Enzyme kinetics was performed to study the effect of alliin on the activity of hsALDH. Different biophysical techniques were employed for structural and binding studies. Docking analysis was done to predict the binding region and the type of binding forces. RESULTS Alliin enhanced the dehydrogenase activity of the enzyme. It slightly reduced the Km and significantly enhanced the Vmax value. At 1 µM alliin concentration, the initial reaction rate increased by about two times. Further, it enhanced the hsALDH esterase activity. Biophysical studies indicated a strong complex formation between the enzyme and alliin (binding constant, Kb: 2.35 ± 0.14 x 103 M-1). It changes the secondary structure of hsALDH. Molecular docking study indicated that alliin interacts to the enzyme near the substrate binding region involving some active site residues that are evolutionary conserved. There was a slight increase in the nucleophilicity of active site cysteine in the presence of alliin. Ligand efficiency metrics values indicate that alliin is an efficient ligand for the enzyme. CONCLUSION Alliin activates the catalytic activity of the enzyme. Hence, consumption of alliincontaining garlic preparations or alliin supplements and use of alliin in pure form may lower aldehyde related pathogenesis including oral carcinogenesis.
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Affiliation(s)
- Amaj A Laskar
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Danishuddin
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Shaheer H Khan
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Naidu Subbarao
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Hina Younus
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
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Ahmed Laskar A, Younus H. Aldehyde toxicity and metabolism: the role of aldehyde dehydrogenases in detoxification, drug resistance and carcinogenesis. Drug Metab Rev 2019; 51:42-64. [DOI: 10.1080/03602532.2018.1555587] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Amaj Ahmed Laskar
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Hina Younus
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
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Abstract
Cancer stem cells (CSCs) are crucial for tumor recurrence and distant metastasis. Immunologically targeting CSCs represents a promising strategy to improve efficacy of multimodal cancer therapy. Modulating the innate immune response involving Toll-like receptors, macrophages, natural killer cells, and γδT cells has therapeutic effects on CSCs. Antigens expressed by CSCs provide specific targets for immunotherapy. CSC-primed dendritic cell-based vaccines have induced significant antitumor immunity as an adjuvant therapy in experimental models of established tumors. Targeting the tumor microenvironment CSC niche with cytokines or checkpoint blockade provides additional strategies to eliminate CSCs.
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Affiliation(s)
- Jing Zhang
- Division of Surgical Oncology, University of Michigan Rogel Cancer Center, Room 3410, 1150 East Medical Center Drive, Ann Arbor, MI 48109, USA; Department of the 2nd Thoracic Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 116 Zhuodaoquan South Road, Hongshan District, Wuhan, Hubei Province 430070, China
| | - Qiao Li
- Division of Surgical Oncology, University of Michigan Rogel Cancer Center, 3520B MSRB-1, 1150 West Medical Center Drive, Ann Arbor, MI 48109, USA
| | - Alfred E Chang
- Division of Surgical Oncology, University of Michigan Rogel Cancer Center, Room 3304, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA.
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Abstract
INTRODUCTION Aldose reductase (ALR2) is both the key enzyme of the polyol pathway, whose activation under hyperglycemic conditions leads to the development of chronic diabetic complications, and the crucial promoter of inflammatory and cytotoxic conditions, even under a normoglycemic status. Accordingly, it represents an excellent drug target and a huge effort is being done to disclose novel compounds able to inhibit it. AREAS COVERED This literature survey summarizes patents and patent applications published over the last 5 years and filed for natural, semi-synthetic and synthetic ALR2 inhibitors. Compounds described have been discussed and analyzed from both chemical and functional angles. EXPERT OPINION Several ALR2 inhibitors with a promising pre-clinical ability to address diabetic complications and inflammatory diseases are being developed during the observed timeframe. Natural compounds and plant extracts are the prevalent ones, thus confirming the use of phytopharmaceuticals as an increasingly pursued therapeutic trend also in the ALR2 inhibitors field. Intriguing hints may be taken from synthetic derivatives, the most significant ones being represented by the differential inhibitors ARDIs. Differently from classical ARIs, these compounds should fire up the therapeutic efficacy of the class while minimizing its side effects, thus overcoming the existing limits of this kind of inhibitors.
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Affiliation(s)
- Luca Quattrini
- a Dipartimento di Farmacia , Università di Pisa , Pisa , Italy
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49
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Coliva G, Duarte S, Pérez-Sala D, Fedorova M. Impact of inhibition of the autophagy-lysosomal pathway on biomolecules carbonylation and proteome regulation in rat cardiac cells. Redox Biol 2019; 23:101123. [PMID: 30737170 PMCID: PMC6859560 DOI: 10.1016/j.redox.2019.101123] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 01/13/2023] Open
Abstract
Cells employ multiple defence mechanisms to sustain a wide range of stress conditions associated with accumulation of modified self-biomolecules leading to lipo- and proteotoxicity. One of such mechanisms involves activation of the autophagy-lysosomal pathway for removal and degradation of modified lipids, proteins and even organelles. Biomolecules carbonylation, an irreversible oxidative modification, occurs in a variety of pathological conditions and is generally viewed as a marker of oxidative stress. Here, we used a model of rat primary cardiac cells to elucidate the role of autophagy-lysosomal pathway in the turnover of carbonylated biomolecules. Cells treated with inhibitors of autophagy-lysosomal degradation and primed with a short pulse of mild nitroxidative stress were studied using fluorescent microscopy and accumulation of carbonylated biomolecules in droplets- or vesicle-like structures was observed. Furthermore, systems-wide analysis of proteome regulation using relative label free quantification approach revealed the most significant alterations in cells treated with protease inhibitors. Interestingly, down-regulation of insulin signalling was among the most enriched pathway, as revealed by functional annotation of regulated proteins. Starvation induced autophagy promotes cellular carbonylation. Inhibition of autophagy-lysosomal flux leads to carbonyls accumulation. Cellular carbonyls coincide with Nile Red positive structures. Inhibition of autophagy-lysosomal flux induces proteome alterations. Impairment of autophagy-lysosomal flux results in changes in metabolic and nutrient sensing pathways.
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Affiliation(s)
- Giulia Coliva
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, University of Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany; Center for Biotechnology and Biomedicine, University of Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany
| | - Sofia Duarte
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas, C.S.I.C., 28040 Madrid, Spain
| | - Dolores Pérez-Sala
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas, C.S.I.C., 28040 Madrid, Spain
| | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, University of Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany; Center for Biotechnology and Biomedicine, University of Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany.
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50
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Pereira R, Gendron T, Sanghera C, Greenwood HE, Newcombe J, McCormick PN, Sander K, Topf M, Årstad E, Witney TH. Mapping Aldehyde Dehydrogenase 1A1 Activity using an [ 18 F]Substrate-Based Approach. Chemistry 2019; 25:2345-2351. [PMID: 30521138 PMCID: PMC6379060 DOI: 10.1002/chem.201805473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/05/2018] [Indexed: 12/21/2022]
Abstract
Aldehyde dehydrogenases (ALDHs) catalyze the oxidation of aldehydes to carboxylic acids. Elevated ALDH expression in human cancers is linked to metastases and poor overall survival. Despite ALDH being a poor prognostic factor, the non‐invasive assessment of ALDH activity in vivo has not been possible due to a lack of sensitive and translational imaging agents. Presented in this report are the synthesis and biological evaluation of ALDH1A1‐selective chemical probes composed of an aromatic aldehyde derived from N,N‐diethylamino benzaldehyde (DEAB) linked to a fluorinated pyridine ring either via an amide or amine linkage. Of the focused library of compounds evaluated, N‐ethyl‐6‐(fluoro)‐N‐(4‐formylbenzyl)nicotinamide 4 b was found to have excellent affinity and isozyme selectivity for ALDH1A1 in vitro. Following 18F‐fluorination, [18F]4 b was taken up by colorectal tumor cells and trapped through the conversion to its 18F‐labeled carboxylate product under the action of ALDH. In vivo positron emission tomography revealed high uptake of [18F]4 b in the lungs and liver, with radioactivity cleared through the urinary tract. Oxidation of [18F]4 b, however, was observed in vivo, which may limit the tissue penetration of this first‐in‐class radiotracer.
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Affiliation(s)
- Raul Pereira
- Centre for Advanced Biomedical Imaging, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK.,Current address: Department of Imaging Chemistry & Biology, King's College London, St. Thomas' Hospital, London, SE1 7EH, UK
| | - Thibault Gendron
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Chandan Sanghera
- Centre for Advanced Biomedical Imaging, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK.,Current address: Department of Imaging Chemistry & Biology, King's College London, St. Thomas' Hospital, London, SE1 7EH, UK
| | - Hannah E Greenwood
- Centre for Advanced Biomedical Imaging, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK.,Current address: Department of Imaging Chemistry & Biology, King's College London, St. Thomas' Hospital, London, SE1 7EH, UK
| | - Joseph Newcombe
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.,Department of Biological Sciences, Birkbeck, University of London, Malet Street, London, WC1E 7HX, UK
| | - Patrick N McCormick
- Centre for Advanced Biomedical Imaging, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK.,Current address: Department of Imaging Chemistry & Biology, King's College London, St. Thomas' Hospital, London, SE1 7EH, UK
| | - Kerstin Sander
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Maya Topf
- Department of Biological Sciences, Birkbeck, University of London, Malet Street, London, WC1E 7HX, UK
| | - Erik Årstad
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Timothy H Witney
- Centre for Advanced Biomedical Imaging, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK.,Current address: Department of Imaging Chemistry & Biology, King's College London, St. Thomas' Hospital, London, SE1 7EH, UK
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