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Jia QJ, Yao CL. p38 MAPK involvement in the thermal stress response occurs via HSP27 and caspase3 in the large yellow croaker (Larimichthys crocea). Comp Biochem Physiol B Biochem Mol Biol 2024; 270:110912. [PMID: 37918461 DOI: 10.1016/j.cbpb.2023.110912] [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: 07/21/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
The p38 mitogen-activated protein kinase (p38 MAPK) is a multifunctional molecule that is involved in cellular response to various stressful stimuli. In the present study, the full-length cDNA sequence of p38 MAPK (Lcp38 MAPK) was identified from the large yellow croaker Larimichthys crocea, which encoded a polypeptide of 361 amino acid residues. The predicted Lcp38 MAPK protein contained a highly conserved Thr-Gly-Tyr (TGY) motif, a glutamate and aspartate (ED) site, a substrate binding site (Ala-Thr-Arg-Trp < ATRW>), and a serine/threonine kinase catalytic (S_TKc) domain characteristic of the MAPK family. The constitutive expression of Lcp38 MAPK was detected in most of the tissues examined with the strongest expression in intestine. Subcellular localization in LCK cells (kidney cell line from a L. crocea) revealed that Lcp38 MAPK existed in both the cytoplasm and cell nucleus. The expression of Lcp38 MAPK after temperature stress was tested in LCK cells. The results indicated that Lcp38 MAPK transcripts were significantly upregulated under both cold (10 °C) and heat stress (35 °C) (P < 0.05). Furthermore, the phosphorylation levels of p38 MAPK as well the transcriptional levels of heat shock protein 27 (HSP27) and caspase3 in LCK cells were significantly induced under thermal exposure (P < 0.05). However, the cold- and heat induced HSP27 and caspase3 expression was significantly suppressed by SB203580, a specific inhibitor of p38-MAPK (P < 0.05). These findings indicated that Lcp38 MAPK might be involved in the cellular stress response via HSP27 and caspase3 in large yellow croaker.
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Affiliation(s)
- Qiao-Jing Jia
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China; Otolaryngology Department, the Second Hospital of Hebei Medical University, Shijiazhuang 05000, China
| | - Cui-Luan Yao
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China.
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2
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Mazurakova A, Solarova Z, Koklesova L, Caprnda M, Prosecky R, Khakymov A, Baranenko D, Kubatka P, Mirossay L, Kruzliak P, Solar P. Heat shock proteins in cancer - Known but always being rediscovered: Their perspectives in cancer immunotherapy. Adv Med Sci 2023; 68:464-473. [PMID: 37926002 DOI: 10.1016/j.advms.2023.10.005] [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: 12/27/2022] [Revised: 02/14/2023] [Accepted: 10/16/2023] [Indexed: 11/07/2023]
Abstract
Heat shock proteins (HSPs) represent cellular chaperones that are classified into several families, including HSP27, HSP40, HSP60, HSP70, and HSP90. The role of HSPs in the cell includes the facilitation of protein folding and maintaining protein structure. Both processes play crucial roles during stress conditions in the cell such as heat shock, degradation, and hypoxia. Moreover, HSPs are important modulators of cellular proliferation and differentiation, and are strongly associated with the molecular orchestration of carcinogenesis. The expression and/or activity of HSPs in cancer cells is generally abnormally high and is associated with increased metastatic potential and activity of cancer stem cells, more pronounced angiogenesis, downregulated apoptosis, and the resistance to anticancer therapy in many patients. Based on the mentioned reasons, HSPs have strong potential as valid diagnostic, prognostic, and therapeutic biomarkers in clinical oncology. In addition, numerous papers describe the role of HSPs as chaperones in the regulation of immune responses inside and outside the cell. Importantly, highly expressed/activated HSPs may be inhibited via immunotherapeutic targets in various types of cancers. The aim of this work is to provide a comprehensive overview of the relationship between HSPs and the tumor cell with the intention of highlighting the potential use of HSPs in personalized cancer management.
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Affiliation(s)
- Alena Mazurakova
- Department of Anatomy, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Zuzana Solarova
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Safarik University, Kosice, Slovakia
| | - Lenka Koklesova
- Clinic of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Martin Caprnda
- 1st Department of Internal Medicine, Faculty of Medicine, Comenius University and University Hospital, Bratislava, Slovakia
| | - Robert Prosecky
- 2nd Department of Internal Medicine, Faculty of Medicine, Masaryk University and St. Anne's University Hospital, Brno, Czech Republic; International Clinical Research Centre, St. Anne's University Hospital and Masaryk University, Brno, Czech Republic
| | - Artur Khakymov
- International Research Centre "Biotechnologies of the Third Millennium", Faculty of Biotechnologies (BioTech), ITMO University, Saint-Petersburg, Russian Federation
| | - Denis Baranenko
- International Research Centre "Biotechnologies of the Third Millennium", Faculty of Biotechnologies (BioTech), ITMO University, Saint-Petersburg, Russian Federation
| | - Peter Kubatka
- Department of Histology and Embryology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Ladislav Mirossay
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Safarik University, Kosice, Slovakia
| | - Peter Kruzliak
- 2nd Department of Surgery, Faculty of Medicine, Masaryk University and St. Anne's University Hospital, Brno, Czech Republic.
| | - Peter Solar
- Department of Medical Biology, Faculty of Medicine, Pavol Jozef Safarik University, Kosice, Slovakia.
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3
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Cimmino A, Fasciglione GF, Gioia M, Marini S, Ciaccio C. Multi-Anticancer Activities of Phytoestrogens in Human Osteosarcoma. Int J Mol Sci 2023; 24:13344. [PMID: 37686148 PMCID: PMC10487502 DOI: 10.3390/ijms241713344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/19/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Phytoestrogens are plant-derived bioactive compounds with estrogen-like properties. Their potential health benefits, especially in cancer prevention and treatment, have been a subject of considerable research in the past decade. Phytoestrogens exert their effects, at least in part, through interactions with estrogen receptors (ERs), mimicking or inhibiting the actions of natural estrogens. Recently, there has been growing interest in exploring the impact of phytoestrogens on osteosarcoma (OS), a type of bone malignancy that primarily affects children and young adults and is currently presenting limited treatment options. Considering the critical role of the estrogen/ERs axis in bone development and growth, the modulation of ERs has emerged as a highly promising approach in the treatment of OS. This review provides an extensive overview of current literature on the effects of phytoestrogens on human OS models. It delves into the multiple mechanisms through which these molecules regulate the cell cycle, apoptosis, and key pathways implicated in the growth and progression of OS, including ER signaling. Moreover, potential interactions between phytoestrogens and conventional chemotherapy agents commonly used in OS treatment will be examined. Understanding the impact of these compounds in OS holds great promise for developing novel therapeutic approaches that can augment current OS treatment modalities.
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Affiliation(s)
| | | | | | | | - Chiara Ciaccio
- Department of Clinical Sciences and Translational Medicine, University of Rome ‘Tor Vergata’, Via Montpellier 1, I-00133 Rome, Italy; (A.C.); (G.F.F.); (M.G.); (S.M.)
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4
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Differential Flavonoids and Carotenoids Profiles in Grains of Six Poaceae Crops. Foods 2022; 11:foods11142068. [PMID: 35885312 PMCID: PMC9325323 DOI: 10.3390/foods11142068] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 12/12/2022] Open
Abstract
Poaceae practically dominate staple crops for humans. In addition to the issue of sustenance, there is a growing interest in the secondary metabolites of these staple crops and their functions on health. In this study, metabolomic variations were investigated among six important species of Poaceae with a total of 17 cultivars, including wheat, maize, rice, sorghum, foxtail millet, and broomcorn millet. A total of 201 flavonoid metabolites and 29 carotenoid metabolites were identified based on the UPLC-ESI-MS/MS system. Among them, 114, 128, 101, 179, 113, and 92 flavonoids and 12, 22, 17, 15, 21, and 18 carotenoids were found in wheat, maize, rice, sorghum, foxtail millet, and broomcorn millet, respectively. Only 46 flavonoids and 8 carotenoids were shared by the six crops. Crop-specific flavonoids and carotenoids were identified. Flavone, anthocyanins, flavanone and polyphenol were the major metabolite differences, which showed species specificity. The flavonoid content of the grains from 17J1344 (sorghum), QZH and NMB (foxtail millet) and carotenoids from Mo17 (maize) were higher than the other samples. This study provides a better knowledge of the differences in flavonoid and carotenoid metabolites among Poaceae crops, as well as provides a theoretical basis for the identification of functional metabolites in these grains.
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5
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The effect of apigenin and chemotherapy combination treatments on apoptosis-related genes and proteins in acute leukaemia cell lines. Sci Rep 2022; 12:8858. [PMID: 35614109 PMCID: PMC9132959 DOI: 10.1038/s41598-022-11441-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/30/2022] [Indexed: 12/30/2022] Open
Abstract
Apigenin is a dietary polyphenol found abundantly in fruit and vegetables, which sensitizes leukaemia cells to topoisomerase inhibitor agents (e.g., etoposide), and alkylating agents (e.g., cyclophosphamide), reducing ATP levels and inducing apoptosis; whilst being protective to control haematopoietic stem cells. This study analysed the expression profiles of intrinsic and extrinsic apoptosis-related genes and proteins to help elucidate the mechanisms of action of apigenin when used in combination with etoposide or cyclophosphamide in lymphoid and myeloid leukaemia cell lines (Jurkat and THP-1). Expression of apoptosis-related genes were measured using a TaqMan® Human Apoptosis Array and the StepOne Plus RT-qPCR System, whilst apoptosis-related proteins were determined using a protein profiler™-human apoptosis array and the LI-COR OdysseyR Infrared Imaging System. Apigenin when combined with etoposide or cyclophosphamide-induced apoptosis via the mitochondrial pathway, increasing the expression of pro-apoptotic cytochrome c, SMAC/DIABLO, and HTRA2/OMI, which promoted caspase-9 and -3 activation. Targeting anti-apoptotic and/or pro-apoptotic members of the apoptotic pathways is a promising strategy to induce cancer cell death and improve sensitivity to chemotherapy agents. Here the apoptotic pathways induced by apigenin in combination with etoposide or cyclophosphamide were identified within human leukaemia cell lines, such applications could provide combination therapies for the treatment of leukaemia.
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6
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Itaya M, Miyazawa T, Khalifa S, Shimizu N, Nakagawa K. The inhibition of interaction with serum albumin enhances the physiological activity of curcumin by increasing its cellular uptake. Food Funct 2021; 13:639-648. [PMID: 34931204 DOI: 10.1039/d1fo03234h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Based on the free drug hypothesis, we hypothesized that food compounds that bind stronger to BSA than CUR inhibit the binding between BSA and CUR, and that this results in an increase of the cellular uptake and physiological activities of CUR. To verify this hypothesis, food compounds that bind stronger to BSA than CUR were identified. When THP-1 monocytes were co-treated with the identified compounds (e.g., piperine) and CUR, cell viability significantly decreased, suggesting that the physiological activity of CUR was enhanced. Also, when THP-1 macrophages were co-treated with CUR and the identified compounds following LPS + IFNγ treatment, the decrement of TNF-α was higher compared to treatment with CUR only. Furthermore, the cellular uptake of CUR was increased during this co-treatment. Such results verify our hypothesis, and provide insights into the development of ways to enhance the physiological activities of various food compounds via focusing on their interaction with albumin.
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Affiliation(s)
- Mayuko Itaya
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, 468-1Aramakiazaaoba, Aoba-ku, Sendai, 980-8572, Japan.
| | - Taiki Miyazawa
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Saoussane Khalifa
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, 468-1Aramakiazaaoba, Aoba-ku, Sendai, 980-8572, Japan.
| | - Naoki Shimizu
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, 468-1Aramakiazaaoba, Aoba-ku, Sendai, 980-8572, Japan.
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, 468-1Aramakiazaaoba, Aoba-ku, Sendai, 980-8572, Japan.
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7
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Bartiromo L, Schimberni M, Villanacci R, Ottolina J, Dolci C, Salmeri N, Viganò P, Candiani M. Endometriosis and Phytoestrogens: Friends or Foes? A Systematic Review. Nutrients 2021; 13:2532. [PMID: 34444692 PMCID: PMC8398277 DOI: 10.3390/nu13082532] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 12/17/2022] Open
Abstract
The aim of this systematic review was to provide comprehensive and available data on the possible role of phytoestrogens (PE) for the treatment of endometriosis. We conducted an advanced, systematic search of online medical databases PubMed and Medline. Only full-length manuscripts written in English up to September 2020 were considered. A total of 60 studies were included in the systematic review. According to in vitro findings, 19 out of 22 studies reported the ability of PE in inducing anti-proliferative, anti-inflammatory and proapoptotic effects on cultured cells. Various mechanisms have been proposed to explain this in vitro action including the alteration of cell cycle proteins, the activation/inactivation of regulatory pathways, and modification of radical oxidative species levels. Thirty-eight articles on the effects of phytoestrogens on the development of endometriotic lesions in in vivo experimental animal models of endometriosis have been included. In line with in vitro findings, results also derived from animal models of endometriosis generally supported a beneficial effect of the compounds in reducing lesion growth and development. Finally, only seven studies investigated the effects of phytoestrogens intake on endometriosis in humans. The huge amount of in vitro and in vivo animal findings did not correspond to a consistent literature in the women affected. Therefore, whether the experimental findings can be translated in women is currently unknown.
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Affiliation(s)
- Ludovica Bartiromo
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Matteo Schimberni
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Roberta Villanacci
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Jessica Ottolina
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Carolina Dolci
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Noemi Salmeri
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Paola Viganò
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Massimo Candiani
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
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8
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Splicing reprogramming of TRAIL/DISC-components sensitizes lung cancer cells to TRAIL-mediated apoptosis. Cell Death Dis 2021; 12:287. [PMID: 33731677 PMCID: PMC7969956 DOI: 10.1038/s41419-021-03567-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 01/31/2023]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) selective killing of cancer cells underlines its anticancer potential. However, poor tolerability and resistance underscores the need to identify cancer-selective TRAIL-sensitizing agents. Apigenin, a dietary flavonoid, sensitizes lung cancer cell lines to TRAIL. It remains unknown, however, whether apigenin sensitizes primary lung cancer cells to TRAIL and its underlying mechanisms. Here we show that apigenin reprograms alternative splicing of key TRAIL/death-inducing-signaling-complex (DISC) components: TRAIL Death Receptor 5 (DR5) and cellular-FLICE-inhibitory-protein (c-FLIP) by interacting with the RNA-binding proteins hnRNPA2 and MSI2, resulting in increased DR5 and decreased c-FLIPS protein levels, enhancing TRAIL-induced apoptosis of primary lung cancer cells. In addition, apigenin directly bound heat shock protein 70 (Hsp70), promoting TRAIL/DISC assembly and triggering apoptosis. Our findings reveal that apigenin directs alternative splicing and inhibits Hsp70 enhancing TRAIL anticancer activity. These findings underscore impactful synergies between diet and cancer treatments opening new avenues for improved cancer treatments.
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9
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Torrens-Mas M, Roca P. Phytoestrogens for Cancer Prevention and Treatment. BIOLOGY 2020; 9:E427. [PMID: 33261116 PMCID: PMC7759898 DOI: 10.3390/biology9120427] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/21/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022]
Abstract
Phytoestrogens are a large group of natural compounds found in more than 300 plants. They have a close structural similarity to estrogens, which allow them to bind to both estrogen receptors (ER), ERα and ERβ, presenting a weak estrogenic activity. Phytoestrogens have been described as antioxidant, anti-inflammatory, anti-thrombotic, anti-allergic, and anti-tumoral agents. Their role in cancer prevention has been well documented, although their impact on treatment efficiency is controversial. Several reports suggest that phytoestrogens may interfere with the effect of anti-cancer drugs through the regulation of oxidative stress and other mechanisms. Furthermore, some phytoestrogens could exert a protective effect on healthy cells, thus reducing the secondary effects of cancer treatment. In this review, we have studied the recent research in this area to find evidence for the role of phytoestrogens in cancer prevention and therapy efficacy.
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Affiliation(s)
- Margalida Torrens-Mas
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d’Investigació en Ciències de la Salut, Universitat de les Illes Balears, 07122 Palma, Spain;
- Instituto de Investigación Sanitaria Illes Balears, 07010 Palma, Spain
| | - Pilar Roca
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d’Investigació en Ciències de la Salut, Universitat de les Illes Balears, 07122 Palma, Spain;
- Instituto de Investigación Sanitaria Illes Balears, 07010 Palma, Spain
- Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto Salud Carlos III, 28029 Madrid, Spain
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Imran M, Aslam Gondal T, Atif M, Shahbaz M, Batool Qaisarani T, Hanif Mughal M, Salehi B, Martorell M, Sharifi-Rad J. Apigenin as an anticancer agent. Phytother Res 2020; 34:1812-1828. [PMID: 32059077 DOI: 10.1002/ptr.6647] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/03/2020] [Accepted: 01/31/2020] [Indexed: 12/26/2022]
Abstract
Apigenin is an edible plant-derived flavonoid that has been reported as an anticancer agent in several experimental and biological studies. It exhibits cell growth arrest and apoptosis in different types of tumors such as breast, lung, liver, skin, blood, colon, prostate, pancreatic, cervical, oral, and stomach, by modulating several signaling pathways. Apigenin induces apoptosis by the activation of extrinsic caspase-dependent pathway by upregulating the mRNA expressions of caspase-3, caspase-8, and TNF-α. It induces intrinsic apoptosis pathway as evidenced by the induction of cytochrome c, Bax, and caspase-3, while caspase-8, TNF-α, and B-cell lymphoma 2 levels remained unchanged in human prostate cancer PC-3 cells. Apigenin treatment leads to significant downregulation of matrix metallopeptidases-2, -9, Snail, and Slug, suppressing invasion. The expressions of NF-κB p105/p50, PI3K, Akt, and the phosphorylation of p-Akt decreases after treatment with apigenin. However, apigenin-mediated treatment significantly reduces pluripotency marker Oct3/4 protein expression which might be associated with the downregulation of PI3K/Akt/NF-κB signaling.
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Affiliation(s)
- Muhammad Imran
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore-Lahore, Lahore, Pakistan
| | - Tanweer Aslam Gondal
- School of Exercise and Nutrition, Deakin University, Melbourne, Victoria, Australia
| | - Muhammad Atif
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia
| | - Muhammad Shahbaz
- Department of Food Science and Technology, MNS-University of Agriculture Multan, Multan, Pakistan
| | - Tahira Batool Qaisarani
- Department of Agricultural Engineering and Technology, Ghazi University, Dera Ghazi Khan, Pakistan
| | - Muhammad Hanif Mughal
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore-Lahore, Lahore, Pakistan
| | - Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepción, Concepción, Chile.,Unidad de Desarrollo Tecnológico, UDT, Universidad de Concepción, Concepción, Chile
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Huang S, Yu M, Shi N, Zhou Y, Li F, Li X, Huang X, Jin J. Apigenin and Abivertinib, a novel BTK inhibitor synergize to inhibit diffuse large B-cell lymphoma in vivo and vitro. J Cancer 2020; 11:2123-2132. [PMID: 32127939 PMCID: PMC7052937 DOI: 10.7150/jca.34981] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 12/28/2019] [Indexed: 01/19/2023] Open
Abstract
Background: Apigenin, a flavonoid phytochemical extracted from fruits and vegetables, has shown anti-neoplastic effects in a variety of malignant tumors. DLBCL is the most common type of aggressive lymphoma in adults with a poor prognosis. Small-molecule inhibitors like BTK inhibitors have demonstrated extended period of disease control. Whereas the effects of the synergetic inhibition of the two have not been elucidated. Methods: We assessed the efficacy of Apigenin alone or combined with Abivertinib to inhibit DLBCL progression. Cell viability was examined using the cell proliferation cell proliferation assay (MTS). Apoptotic cells and cell cycle evaluation were detected by Annexin V-FITC and DNA staining solution respectively. Western blot was used to explore the potential mechanism, and the in vivo effects of the two drugs were performed by a DLBCL xenograft BALB/c nude mice model. Results: Our results demonstrated that Apigenin can inhibit the proliferation and clone forming of DLBCL cells. Apigenin also induces apoptosis by down-regulating BCL-XL and activating Caspase family. In addition, Apigenin down-regulates cell cycle proteins including CDK2/CDK4/CDK6/CDC2/p-RB to increase G2/M phase arrest. Mechanically, our data demonstrate that Apigenin leads to a significant reduction of the expression of pro-proliferative pathway PI3K/mTOR to inhibit DLBCL cells survival. Moreover, our in vitro and in vivo results show that Apigenin can synergize with Abivertinib, a novel BTK inhibitor, in treating DLBCL visa synergistically inducing apoptosis and inhibiting the p-GS3K-β and its downstream targets. Conclusions: Collectively, our study suggests that Apigenin exerts improving anti-lymphoma effect of BTK inhibitors and provides hope to targeted therapy of those develop resistance.
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Affiliation(s)
- Shujuan Huang
- Department of Hematology, the First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, People's Republic of China
| | - Mengxia Yu
- Department of Hematology, Hangzhou First people's hospital, Zhejiang, Hangzhou, China
| | - Nana Shi
- The Children's Hospital Zhejiang University School of Medicine
| | - Yile Zhou
- Department of Hematology, the First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, People's Republic of China
| | - Fengling Li
- Department of Hematology, the First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, People's Republic of China
| | - Xia Li
- Department of Hematology, the First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, People's Republic of China
| | - Xin Huang
- Department of Hematology, the First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, People's Republic of China
| | - Jie Jin
- Department of Hematology, the First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment, Zhejiang, Hangzhou, People's Republic of China
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12
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Li J, Zhang X, Shen J, Guo J, Wang X, Liu J. Bortezomib promotes apoptosis of multiple myeloma cells by regulating HSP27. Mol Med Rep 2019; 20:2410-2418. [PMID: 31322176 DOI: 10.3892/mmr.2019.10467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 03/18/2019] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate the effect of bortezomib on heat shock protein 27 (HSP27) in multiple myeloma (MM) and provide a potential new target for clinical treatment. Peripheral blood was collected from 50 normal subjects and 50 patients with newly diagnosed MM and the expression of HSP27 was detected by ELISA. The changes of HSP27 after conventional vincristine, doxorubicin and dexamethasone (VAD) chemotherapy, and bortezomib plus VAD were compared. The effect of bortezomib on U266 cell proliferation and apoptosis was detected using a Cell Counting Kit‑8 assay and Annexin V‑FITC/propidium iodide double staining with flow cytometry. The content of HSP27 following bortezomib treatment was determined by ELISA. Western blot analysis and reverse transcription‑quantitative PCR were used to detect the mRNA and protein expression of HSP27, Bax and Bcl‑2. HSP27 expression was increased in patients with MM compared with healthy control subjects, and the expression was increased as the cancer progressed (P<0.05). Compared with the VAD chemotherapy group, the bortezomib plus VAD chemotherapy regimen significantly inhibited the expression of HSP27 (P<0.05), and the content of HSP27 was decreased in patients in which treatment was effective compared to those patients that exhibited disease progression (P<0.05). The efficacy of the treatment regimes was not associated with age or gender. Compared with the control group, bortezomib or OGX‑427 (HSP27 inhibitor) treatment inhibited U266 cell proliferation, promoted U266 cell apoptosis (P<0.05) and significantly decreased HSP27 expression (P<0.05). Furthermore, the expression of HSP27 and Bcl‑2 was significantly decreased, while the expression of Bax was increased by bortezomib and OGX‑427 (P<0.05). There was no significant difference between the bortezomib and OGX‑427 group in the in vitro analysis. HSP27 was positively correlated with Bcl‑2 expression and negatively correlated with Bax expression in U266 cells. In conclusion, bortezomib promotes the apoptosis of MM cells, potentially by downregulating the expression of HSP27, providing a potential novel target for the clinical treatment of multiple myeloma.
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Affiliation(s)
- Jing Li
- Department of Hematology, Rizhao People's Hospital, Rizhao, Shandong 276826, P.R. China
| | - Xiaomei Zhang
- Department of Hematology, Rizhao People's Hospital, Rizhao, Shandong 276826, P.R. China
| | - Jiaying Shen
- Department of Hematology, Rizhao People's Hospital, Rizhao, Shandong 276826, P.R. China
| | - Jun Guo
- Department of Hematology, Rizhao People's Hospital, Rizhao, Shandong 276826, P.R. China
| | - Xiaolin Wang
- Department of Hematology, Rizhao People's Hospital, Rizhao, Shandong 276826, P.R. China
| | - Jiaqiang Liu
- Department of Hematology, Rizhao People's Hospital, Rizhao, Shandong 276826, P.R. China
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13
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Saraei R, Marofi F, Naimi A, Talebi M, Ghaebi M, Javan N, Salimi O, Hassanzadeh A. Leukemia therapy by flavonoids: Future and involved mechanisms. J Cell Physiol 2018; 234:8203-8220. [PMID: 30500074 DOI: 10.1002/jcp.27628] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 09/25/2018] [Indexed: 12/11/2022]
Abstract
Flavonoids are a varied family of phytonutrients (plant chemicals) usually are detected in fruits and vegetables. In this big family, there exist more than 10,000 members that is separated into six chief subtypes: isoflavonols, flavonoenes, flavones, flavonols, anthocyanins, and chalcones. The natural compounds, such as fruits, have visible positive effects in regulating of survival involved signaling pathways that performance as the regulator of cell survival, growth, and proliferation. Researchers have established that commonly consumption up flavonoids decreases incidence and development risk of certain cancers, especially leukemia. Flavonoids have been able to induce apoptosis and stimulate cell cycle arrest in cancer cells via different pathways. Similarly, they have antiangiogenesis and antimetastasis capability, which were shown in wide ranges of cancer cells, particularly, leukemia. It seems that flavonoid because of their widespread approval, evident safety and low rate of side effects, have hopeful anticarcinogenic potential for leukemia therapy. Based on the last decade reports, the most important acting mechanisms of these natural compounds in leukemia cells are stimulating of apoptosis pathways by upregulation of caspase 3, 8, 9 and poly ADP-ribose polymerase (PARP) and proapoptotic proteins, particularly Bax activation. As well, they can induce cell cycle arrest in target cells not only via increasing of activated levels of p21 and p53 but also by inhibition of cyclins and cyclin-dependent kinases. Furthermore, attenuation of neclear factor-κB and signal transducer and activator of transcription 3 activation, suppression of signaling pathway and downregulation of intracellular antiapoptotic proteins are other significant antileukemic function mechanism of flavonoids. Overall, it appears that flavonoids are promising and effective compounds in the field of leukemia therapy. In this review, we tried to accumulate and revise most promising flavonoids and finally declared their major working mechanisms in leukemia cells.
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Affiliation(s)
- Raedeh Saraei
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Faroogh Marofi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Adel Naimi
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Talebi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahnaz Ghaebi
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naser Javan
- Department of Clinical Biochemistry and Laboratories Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Salimi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Hassanzadeh
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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14
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Kashyap D, Sharma A, Tuli HS, Sak K, Garg VK, Buttar HS, Setzer WN, Sethi G. Apigenin: A natural bioactive flavone-type molecule with promising therapeutic function. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.037] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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15
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Salmani JMM, Zhang XP, Jacob JA, Chen BA. Apigenin's anticancer properties and molecular mechanisms of action: Recent advances and future prospectives. Chin J Nat Med 2018; 15:321-329. [PMID: 28558867 DOI: 10.1016/s1875-5364(17)30052-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Indexed: 01/31/2023]
Abstract
Cancer is a major health concern and leading burden on economy worldwide. An increasing effort is devoted to isolation and development of plant-derived dietary components as effective chemo-preventive products. Phytochemical compounds from natural resources such as fruits and vegetables are responsible for decreasing the risk of certain cancers among the consuming populations. Apigenin, a flavonoid phytochemical found in many kinds of fruits and vegetables, has been shown to exert significant biological effects, such as anti-oxidant, anti-inflammatory and most particularly anti-neoplastic properties. This review is intended to summarize the most recent advances in the anti-proliferative and chemo-preventive effects of apigenin in different cancer models. Analysis of the data from the studied cancer models has revealed that apigenin exerts its anti-proliferative effects through multiple and complex pathways. This guided us to discover some controversial results about the exact role of certain molecular pathways such as autophagy in the anticancer effects of apigenin. Further, there were cumulative positive evidences supporting the involvement of certain pathways such as apoptosis, ROS and DNA damage and repair. Apigenin possesses a high potential to be used as a chemosensitizing agent through the up-regulation of DR5 pathway. According to these preclinical findings we recommend that further robust unbiased studies should consider the possible interactions between different molecular pathways.
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Affiliation(s)
- Jumah Masoud Mohammad Salmani
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Xiao-Ping Zhang
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Joe Antony Jacob
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Bao-An Chen
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China.
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16
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Shankar E, Goel A, Gupta K, Gupta S. Plant flavone apigenin: An emerging anticancer agent. CURRENT PHARMACOLOGY REPORTS 2017; 3:423-446. [PMID: 29399439 PMCID: PMC5791748 DOI: 10.1007/s40495-017-0113-2] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Research in cancer chemoprevention provides convincing evidence that increased intake of vegetables and fruits may reduce the risk of several human malignancies. Phytochemicals present therein provide beneficial anti-inflammatory and antioxidant properties that serve to improve the cellular microenvironment. Compounds known as flavonoids categorized anthocyanidins, flavonols, flavanones, flavonols, flavones, and isoflavones have shown considerable promise as chemopreventive agents. Apigenin (4', 5, 7-trihydroxyflavone), a major plant flavone, possessing antioxidant, anti-inflammatory, and anticancer properties affecting several molecular and cellular targets used to treat various human diseases. Epidemiologic and case-control studies have suggested apigenin reduces the risk of certain cancers. Studies demonstrate that apigenin retain potent therapeutic properties alone and/or increases the efficacy of several chemotherapeutic drugs in combination on a variety of human cancers. Apigenin's anticancer effects could also be due to its differential effects in causing minimal toxicity to normal cells with delayed plasma clearance and slow decomposition in liver increasing the systemic bioavailability in pharmacokinetic studies. Here we discuss the anticancer role of apigenin highlighting its potential activity as a chemopreventive and therapeutic agent. We also highlight the current caveats that preclude apigenin for its use in the human trials.
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Affiliation(s)
- Eswar Shankar
- Department of Urology, The James and Eilleen Dicke Laboratory, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Urology, The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Aditi Goel
- Department of Biology, School of Undergraduate Studies, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Karishma Gupta
- Department of Urology, The James and Eilleen Dicke Laboratory, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Urology, The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Sanjay Gupta
- Department of Urology, The James and Eilleen Dicke Laboratory, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Urology, The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
- Department of Nutrition, Case Western Reserve University, Cleveland, OH 44106, USA
- Division of General Medical Sciences, Case Comprehensive Cancer Center, Cleveland, OH 44106, USA
- Department of Urology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH 44106, USA
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17
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Jin M, Zhang X, Zhao M, Deng M, Du Y, Zhou Y, Wang S, Tohge T, Fernie AR, Willmitzer L, Brotman Y, Yan J, Wen W. Integrated genomics-based mapping reveals the genetics underlying maize flavonoid biosynthesis. BMC PLANT BIOLOGY 2017; 17:17. [PMID: 28100172 PMCID: PMC5242060 DOI: 10.1186/s12870-017-0972-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/05/2017] [Indexed: 05/02/2023]
Abstract
BACKGROUND Flavonoids constitute a diverse class of secondary metabolites which exhibit potent bioactivities for human health and have been indicated to play an important role in plant development and defense. However, accumulation and variation of flavonoid content in diverse maize lines and the genes responsible for their biosynthesis in this important crop remain largely unknown. In this study, we combine genetic mapping, metabolite profiling and gene regulatory network analysis to further enhance understanding of the maize flavonoid pathway. RESULTS We repeatedly detected 25 QTL corresponding to 23 distinct flavonoids across different environments or populations. In addition, a total of 39 genes were revealed both by an expression based network analysis and genetic mapping. Finally, the function of three candidate genes, including two UDP-glycosyltransferases (UGT) and an oxygenase which belongs to the flavone synthase super family, was revealed via preliminary molecular functional characterization. CONCLUSION We explored the genetic influences on the flavonoid biosynthesis based on integrating the genomic, transcriptomic and metabolomic information which provided a rich source of potential candidate genes. The integrated genomics based genetic mapping strategy is highly efficient for defining the complexity of functional genetic variants and their respective regulatory networks as well as in helping to select candidate genes and allelic variance before embarking on laborious transgenic validations.
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Affiliation(s)
- Min Jin
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Xuehai Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Mingchao Zhao
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Min Deng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Yuanhao Du
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Yang Zhou
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Shouchuang Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Takayuki Tohge
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Alisdair R. Fernie
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Lothar Willmitzer
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Yariv Brotman
- Department of Life Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Jianbing Yan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Weiwei Wen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, 430070 China
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18
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Sak K, Everaus H. Established Human Cell Lines as Models to Study Anti-leukemic Effects of Flavonoids. Curr Genomics 2016; 18:3-26. [PMID: 28503087 PMCID: PMC5321770 DOI: 10.2174/1389202917666160803165447] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 11/20/2015] [Accepted: 11/27/2015] [Indexed: 12/19/2022] Open
Abstract
Despite the extensive work on pathological mechanisms and some recent advances in the treatment of different hematological malignancies, leukemia continues to present a significant challenge being frequently considered as incurable disease. Therefore, the development of novel therapeutic agents with high efficacy and low toxicity is urgently needed to improve the overall survival rate of patients. In this comprehensive review article, the current knowledge about the anticancer activities of flavonoids as plant secondary polyphenolic metabolites in the most commonly used human established leukemia cell lines (HL-60, NB4, KG1a, U937, THP-1, K562, Jurkat, CCRF- CEM, MOLT-3, and MOLT-4) is compiled, revealing clear anti-proliferative, pro-apoptotic, cell cycle arresting, and differentiation inducing effects for certain compounds. Considering the low toxicity of these substances in normal blood cells, the presented data show a great potential of flavonoids to be developed into novel anti-leukemia agents applicable also in the malignant cells resistant to the current conventional chemotherapeutic drugs.
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Affiliation(s)
- Katrin Sak
- Department of Hematology and Oncology, University of Tartu, Tartu, Estonia
| | - Hele Everaus
- Department of Hematology and Oncology, University of Tartu, Tartu, Estonia
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19
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The function of small heat-shock proteins and their implication in proteostasis. Essays Biochem 2016; 60:163-172. [DOI: 10.1042/ebc20160010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 04/15/2016] [Indexed: 11/17/2022]
Abstract
All organisms rely on a conserved cellular machinery supporting and controlling the life cycle of proteins: the proteostasis network. Within this network, the main players that determine the fate of proteins are molecular chaperones, the ubiquitin–proteasome and the lysosome–autophagy systems. sHsps (small heat-shock proteins) represent one family of molecular chaperones found in all domains of life. They prevent irreversible aggregation of unfolded proteins and maintain proteostasis by stabilizing promiscuously a variety of non-native proteins in an ATP-independent manner. In the cellular chaperone network, sHsps act as the first line of defence and keep their substrates in a folding-competent state until they are refolded by downstream ATP-dependent chaperone systems. Besides this interaction with unfolding substrates upon stress, sHsps show a different mode of binding for specific clients which are also recognized under physiological conditions. In vertebrates, sHsps are especially needed to maintain the refractive index of the eye lens. Additionally, sHsps are linked to a broad variety of diseases such as myopathies and neuropathies. The most striking feature of sHsps is their ability to form dynamic ensembles of higher oligomers. The activity of sHsps is regulated by changes in the composition of the ensembles.
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20
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Jiang N, Doseff AI, Grotewold E. Flavones: From Biosynthesis to Health Benefits. PLANTS (BASEL, SWITZERLAND) 2016; 5:E27. [PMID: 27338492 PMCID: PMC4931407 DOI: 10.3390/plants5020027] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 12/20/2022]
Abstract
Flavones correspond to a flavonoid subgroup that is widely distributed in the plants, and which can be synthesized by different pathways, depending on whether they contain C- or O-glycosylation and hydroxylated B-ring. Flavones are emerging as very important specialized metabolites involved in plant signaling and defense, as well as key ingredients of the human diet, with significant health benefits. Here, we appraise flavone formation in plants, emphasizing the emerging theme that biosynthesis pathway determines flavone chemistry. Additionally, we briefly review the biological activities of flavones, both from the perspective of the functions that they play in biotic and abiotic plant interactions, as well as their roles as nutraceutical components of the human and animal diet.
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Affiliation(s)
- Nan Jiang
- Center for Applied Plant Sciences, The Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA.
| | - Andrea I Doseff
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA.
- Department of Physiology and Cell Biology, 305B Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA.
| | - Erich Grotewold
- Center for Applied Plant Sciences, The Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA.
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21
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Haslbeck M, Peschek J, Buchner J, Weinkauf S. Structure and function of α-crystallins: Traversing from in vitro to in vivo. Biochim Biophys Acta Gen Subj 2015; 1860:149-66. [PMID: 26116912 DOI: 10.1016/j.bbagen.2015.06.008] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 06/10/2015] [Accepted: 06/22/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND The two α-crystallins (αA- and αB-crystallin) are major components of our eye lenses. Their key function there is to preserve lens transparency which is a challenging task as the protein turnover in the lens is low necessitating the stability and longevity of the constituent proteins. α-Crystallins are members of the small heat shock protein family. αB-crystallin is also expressed in other cell types. SCOPE OF THE REVIEW The review summarizes the current concepts on the polydisperse structure of the α-crystallin oligomer and its chaperone function with a focus on the inherent complexity and highlighting gaps between in vitro and in vivo studies. MAJOR CONCLUSIONS Both α-crystallins protect proteins from irreversible aggregation in a promiscuous manner. In maintaining eye lens transparency, they reduce the formation of light scattering particles and balance the interactions between lens crystallins. Important for these functions is their structural dynamics and heterogeneity as well as the regulation of these processes which we are beginning to understand. However, currently, it still remains elusive to which extent the in vitro observed properties of α-crystallins reflect the highly crowded situation in the lens. GENERAL SIGNIFICANCE Since α-crystallins play an important role in preventing cataract in the eye lens and in the development of diverse diseases, understanding their mechanism and substrate spectra is of importance. To bridge the gap between the concepts established in vitro and the in vivo function of α-crystallins, the joining of forces between different scientific disciplines and the combination of diverse techniques in hybrid approaches are necessary. This article is part of a Special Issue entitled Crystallin Biochemistry in Health and Disease.
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Affiliation(s)
- Martin Haslbeck
- Center for Integrated Protein Science at the Department Chemie, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany
| | - Jirka Peschek
- Center for Integrated Protein Science at the Department Chemie, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany
| | - Johannes Buchner
- Center for Integrated Protein Science at the Department Chemie, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany.
| | - Sevil Weinkauf
- Center for Integrated Protein Science at the Department Chemie, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany.
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22
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Malavez Y, Voss OH, Gonzalez-Mejia ME, Parihar A, Doseff AI. Distinct contribution of protein kinase Cδ and protein kinase Cε in the lifespan and immune response of human blood monocyte subpopulations. Immunology 2015; 144:611-20. [PMID: 25322815 DOI: 10.1111/imm.12412] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 10/13/2014] [Accepted: 10/14/2014] [Indexed: 02/06/2023] Open
Abstract
Monocytes, key components of the immune system, are a heterogeneous population comprised of classical monocytes (CD16(-) ) and non-classical monocytes (CD16(+) ). Monocytes are short lived and undergo spontaneous apoptosis, unless stimulated. Dysregulation of monocyte numbers contribute to the pathophysiology of inflammatory diseases, yet the contribution of each subset remains poorly characterized. Protein kinase C (PKC) family members are central to monocyte biology; however, their role in regulating lifespan and immune function of CD16(-) and CD16(+) monocytes has not been studied. Here, we evaluated the contribution of PKCδ and PKCε in the lifespan and immune response of both monocyte subsets. We showed that CD16(+) monocytes are more susceptible to spontaneous apoptosis because of the increased caspase-3, -8 and -9 activities accompanied by higher kinase activity of PKCδ. Silencing of PKCδ reduced apoptosis in both CD16(+) and CD16(-) monocytes. CD16(+) monocytes express significantly higher levels of PKCε and produce more tumour necrosis factor-α in CD16(+) compared with CD16(-) monocytes. Silencing of PKCε affected the survival and tumour necrosis factor-α production. These findings demonstrate a complex network with similar topography, yet unique regulatory characteristics controlling lifespan and immune response in each monocyte subset, helping define subset-specific coordination programmes controlling monocyte function.
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Affiliation(s)
- Yadira Malavez
- Department of Molecular Genetics, Department of Internal Medicine, Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA
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23
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Mymrikov EV, Haslbeck M. Medical implications of understanding the functions of human small heat shock proteins. Expert Rev Proteomics 2015; 12:295-308. [PMID: 25915440 DOI: 10.1586/14789450.2015.1039993] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Small heat shock proteins (sHsps) are ubiquitous molecular chaperones that are implicated in a variety of diseases. Upon stress, they stabilize unfolding proteins and prevent them from aggregating. However, under physiological conditions without severe stress, some sHsps interact with other proteins. In a perspective view, their ability to bind specific client proteins might allow them to fine-tune the availability of the client for other, client-dependent cellular processes. Additionally, some sHsps seem to interact with specific co-chaperones. These co-chaperones are usually part of large protein machineries that are functionally modulated upon sHsps interaction. Finally, secreted human sHsps seem to interact with receptor proteins, potentially as signal molecules transmitting the stress status from one cell to another. This review focuses on the mechanistic description of these different binding modes for human sHsps and how this might help to understand and modulate the function of sHsps in the context of disease.
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Affiliation(s)
- Evgeny V Mymrikov
- Department Chemie, Technische Universität München, D-85747 Garching, Germany
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24
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Arango D, Diosa-Toro M, Rojas-Hernandez LS, Cooperstone JL, Schwartz SJ, Mo X, Jiang J, Schmittgen TD, Doseff AI. Dietary apigenin reduces LPS-induced expression of miR-155 restoring immune balance during inflammation. Mol Nutr Food Res 2015; 59:763-72. [PMID: 25641956 PMCID: PMC7955240 DOI: 10.1002/mnfr.201400705] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 12/25/2014] [Accepted: 12/29/2014] [Indexed: 12/25/2022]
Abstract
SCOPE High incidence of inflammatory diseases afflicts the increasing aging-population infringing a great health burden. Dietary flavonoids, including the flavone apigenin, are emerging as important anti-inflammatory nutraceuticals due to their health benefits, lack of adverse effects and reduced costs. MicroRNAs (miRs) play a central role in inflammation by regulating gene expression, yet how dietary ingredients affect miRs is poorly understood. The aim of this study was to identify miRs involved in the anti-inflammatory activity of apigenin and apigenin-rich diets and determine their immune regulatory mechanisms in macrophages and in vivo. METHODS AND RESULTS A high-throughput quantitative reverse transcriptase PCR screen of 312 miRs in macrophages revealed that apigenin reduced LPS-induced miR-155 expression. Analyses of miR-155 precursor and primary transcript indicated that apigenin regulated miR-155 transcriptionally. Apigenin-reduced expression of miR-155 led to the increase of anti-inflammatory regulators forkhead box O3a and smooth-muscle-actin and MAD-related protein 2 in LPS-treated macrophages. In vivo, apigenin or a celery-based apigenin-rich diet reduced LPS-induced expression of miR-155 and decreased tumor necrosis factor α in lungs from LPS-treated mice. CONCLUSION These results demonstrate that apigenin and apigenin-rich diets exert effective anti-inflammatory activity in vivo by reducing LPS-induced expression of miR-155, thereby restoring immune balance.
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Affiliation(s)
- Daniel Arango
- Department of Internal Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep, and The Heart and Lung Research Institute, The Ohio State University. Columbus, OH. USA
- Department of Molecular Genetics, The Ohio State University. Columbus, OH. USA
- Molecular Cellular and Developmental Biology Graduate Program, The Ohio State University. Columbus, OH. USA
| | - Mayra Diosa-Toro
- Department of Internal Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep, and The Heart and Lung Research Institute, The Ohio State University. Columbus, OH. USA
- Department of Molecular Genetics, The Ohio State University. Columbus, OH. USA
| | - Laura S. Rojas-Hernandez
- Department of Internal Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep, and The Heart and Lung Research Institute, The Ohio State University. Columbus, OH. USA
- Department of Molecular Genetics, The Ohio State University. Columbus, OH. USA
| | | | - Steven J. Schwartz
- Department of Food Science and Technology, The Ohio State University. Columbus, OH. USA
| | - Xiaokui Mo
- Center for Biostatistics, The Ohio State University. Columbus, OH. USA
| | - Jinmai Jiang
- College of Pharmacy, The Ohio State University. Columbus, OH. USA
| | | | - Andrea I. Doseff
- Department of Internal Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep, and The Heart and Lung Research Institute, The Ohio State University. Columbus, OH. USA
- Department of Molecular Genetics, The Ohio State University. Columbus, OH. USA
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Sak K, Everaus H. Multi-Target Cytotoxic Actions of Flavonoids in Blood Cancer Cells. Asian Pac J Cancer Prev 2015; 16:4843-4847. [PMID: 26163601 DOI: 10.7314/apjcp.2015.16.12.4843] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024] Open
Abstract
To date, cytotoxic effects of flavonoids in various cancer cells are well accepted. However, the intracellular signaling cascades triggered by these natural compounds remain largely unknown and elusive. In this mini- review, the multiplicity of molecular targets of flavonoids in blood cancer cells is discussed by demonstrating the involvement of various signaling pathways in induction of apoptotic responses. Although these data reveal a great potential of flavonoids for the development of novel agents against different types of hematological malignancies, the pleiotropic nature of these compounds in modulation of cellular processes and their interactions certainly need unraveling and further investigation.
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Affiliation(s)
- Katrin Sak
- Department of Hematology and Oncology, University of Tartu, Tartu, Estonia E-mail :
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Casas MI, Duarte S, Doseff AI, Grotewold E. Flavone-rich maize: an opportunity to improve the nutritional value of an important commodity crop. FRONTIERS IN PLANT SCIENCE 2014; 5:440. [PMID: 25250036 PMCID: PMC4157551 DOI: 10.3389/fpls.2014.00440] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 08/16/2014] [Indexed: 05/18/2023]
Abstract
Agricultural outputs have resulted in food production continuously expanding. To satisfy the needs of a fast growing human population, higher yields, more efficient food processing, and food esthetic value, new crop varieties with higher caloric intake have and continue to be developed, but which lack many phytochemicals important for plant protection and adequate human nutrition. The increasing incidence of chronic diseases such as obesity, diabetes and cardiovascular diseases, combined with social disparity worldwide prompted the interest in developing enhanced crops that can simultaneously address the two sides of the current malnutrition sword, increasing yield while providing added nutritional value. Flavones, phytochemicals associated with the beneficial effects of the Mediterranean diet, have potent anti-inflammatory and anti-carcinogenic activities. However, many Mediterranean diet-associated vegetables are inaccessible, or lowly consumed, in many parts of the world. Maize is the most widely grown cereal crop, yet most lines used for hybrid maize production lack flavones. As a first step toward a sustainable strategy to increasing the nutritional value of maize-based diets, we investigated the accumulation and chemical properties of flavones in maize seeds of defined genotypes. We show that the pericarps of the P1-rr genotype accumulate flavones at levels comparable to those present in some flavone-rich vegetables, and are mostly present in their C- and O-glycosylated forms. Some of these glycosides can be readily converted into the corresponding more active health beneficial aglycones during food processing. Our results provide evidence that nutritionally beneficial flavones could be re-introduced into elite lines to increase the dietary benefits of maize.
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Affiliation(s)
- María I. Casas
- Center for Applied Plant Sciences, The Ohio State UniversityColumbus, OH, USA
- Molecular Cellular and Developmental Biology Graduate Program, The Ohio State UniversityColumbus, OH, USA
- Department of Molecular Genetics, The Ohio State UniversityColumbus, OH, USA
| | - Silvia Duarte
- Department of Molecular Genetics, The Ohio State UniversityColumbus, OH, USA
- Division of Pulmonary, Allergy, Critical Care, and Sleep, Department of Internal Medicine, Heart and Lung Research Institute, The Ohio State UniversityColumbus, OH, USA
| | - Andrea I. Doseff
- Department of Molecular Genetics, The Ohio State UniversityColumbus, OH, USA
- Division of Pulmonary, Allergy, Critical Care, and Sleep, Department of Internal Medicine, Heart and Lung Research Institute, The Ohio State UniversityColumbus, OH, USA
- *Correspondence: Andrea I. Doseff, Heart and Lung Research Institute, The Ohio State University, 305B, 473 W 12th Avenue, Columbus, OH 43210, USA e-mail:
| | - Erich Grotewold
- Center for Applied Plant Sciences, The Ohio State UniversityColumbus, OH, USA
- Department of Molecular Genetics, The Ohio State UniversityColumbus, OH, USA
- Erich Grotewold, Department of Molecular Genetics, Center for Applied Plant Sciences, The Ohio State University, 012 Rightmire Hall, 1060 Carmack Rd., Columbus, OH 43210, USA e-mail:
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Xu F, Yang T, Fang D, Xu Q, Chen Y. An investigation of heat shock protein 27 and P-glycoprotein mediated multi-drug resistance in breast cancer using liquid chromatography-tandem mass spectrometry-based targeted proteomics. J Proteomics 2014; 108:188-97. [PMID: 24882106 DOI: 10.1016/j.jprot.2014.05.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 05/13/2014] [Accepted: 05/21/2014] [Indexed: 12/20/2022]
Abstract
UNLABELLED One missing puzzle piece to study heat shock protein 27 (HSP27) in P-glycoprotein (P-gp) mediated multi-drug resistance (MDR) was the amount of HSP27 and the extent of its phosphorylation in the biological context. Liquid chromatography-tandem mass spectrometry (LC/MS/MS)-based targeted proteomics allows researchers to monitor associated proteins and their modification simultaneously and quantitatively. In this study, a targeted proteomics assay was first developed and validated for the quantification of HSP27 and its phosphorylated forms. Using this assay, the level of HSP27 was determined in non-tumoral cells MCF-10A, parental drug-sensitive cancer cells MCF-7/WT and drug-resistant cancer cells MCF-7/ADR. A decrease of HSP27 expression was observed in P-gp overexpressed MCF-7/ADR cells. A quantitative time-course analysis of both HSP27 and P-gp in doxorubicin (DOX)-treated MCF-7/WT cells also implied that HSP27 may participate in the P-gp modulation. Furthermore, stoichiometry of site-specific HSP27 phosphorylation indicated that DOX treatment rapidly induced the HSP27 phosphorylation at Ser82. Moreover, conventional analytical methods were also performed for a comparison. BIOLOGICAL SIGNIFICANCE LC/MS/MS-based targeted proteomics turns out to be a promising quantification approach for the study of proteins in the preclinical and clinical environment. Unfortunately, rare studies applied this technology to detect multiple associated proteins or protein modification in one experiment. This study demonstrated the potential of LC/MS/MS-based targeted proteomics to understand the cell events in a more accurate context of biological system. By the quantitative time-course analysis of HSP27 and its phosphorylated forms at sites of Ser15 and Ser82, the possible role of HSP27 in P-gp mediated MDR was suggested. Further development of targeted proteomics in future may provide more insight into signal transduction pathways upon perturbation of a protein network or changes to a panel of proposed biomarkers in a given disease state.
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Affiliation(s)
- Feifei Xu
- School of Pharmacy, Nanjing Medical University, 818 Tian Yuan East Road, Nanjing 211166, China
| | - Ting Yang
- School of Pharmacy, Nanjing Medical University, 818 Tian Yuan East Road, Nanjing 211166, China
| | - Danjun Fang
- School of Pharmacy, Nanjing Medical University, 818 Tian Yuan East Road, Nanjing 211166, China
| | - Qingqing Xu
- School of Pharmacy, Nanjing Medical University, 818 Tian Yuan East Road, Nanjing 211166, China
| | - Yun Chen
- School of Pharmacy, Nanjing Medical University, 818 Tian Yuan East Road, Nanjing 211166, China.
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Lakshmanan A, Doseff AI, Ringel MD, Saji M, Rousset B, Zhang X, Jhiang SM. Apigenin in combination with Akt inhibition significantly enhances thyrotropin-stimulated radioiodide accumulation in thyroid cells. Thyroid 2014; 24:878-87. [PMID: 24400871 PMCID: PMC4026312 DOI: 10.1089/thy.2013.0614] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Selectively increased radioiodine accumulation in thyroid cells by thyrotropin (TSH) allows targeted treatment of thyroid cancer. However, the extent of TSH-stimulated radioiodine accumulation in some thyroid tumors is not sufficient to confer therapeutic efficacy. Hence, it is of clinical importance to identify novel strategies to selectively further enhance TSH-stimulated thyroidal radioiodine accumulation. METHODS PCCl3 rat thyroid cells, PCCl3 cells overexpressing BRAF(V600E), or primary cultured tumor cells from a thyroid cancer mouse model, under TSH stimulation were treated with various reagents for 24 hours. Cells were then subjected to radioactive iodide uptake, kinetics, efflux assays, and protein extraction followed by Western blotting against selected antibodies. RESULTS We previously reported that Akt inhibition increased radioiodine accumulation in thyroid cells under chronic TSH stimulation. Here, we identified Apigenin, a plant-derived flavonoid, as a reagent to further enhance the iodide influx rate increased by Akt inhibition in thyroid cells under acute TSH stimulation. Akt inhibition is permissive for Apigenin's action, as Apigenin alone had little effect. This action of Apigenin requires p38 MAPK activity but not PKC-δ. The increase in radioiodide accumulation by Apigenin with Akt inhibition was also observed in thyroid cells expressing BRAF(V600E) and in primary cultured thyroid tumor cells from TRβ(PV/PV) mice. CONCLUSION Taken together, Apigenin may serve as a dietary supplement in combination with Akt inhibitors to enhance therapeutic efficacy of radioiodine for thyroid cancer.
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Affiliation(s)
- Aparna Lakshmanan
- Molecular, Cellular and Developmental Biology Graduate Program, The Ohio State University, Columbus, Ohio
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, Ohio
| | - Andrea I. Doseff
- Molecular, Cellular and Developmental Biology Graduate Program, The Ohio State University, Columbus, Ohio
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Matthew D. Ringel
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, Ohio
| | - Motoyasu Saji
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, Ohio
| | - Bernard Rousset
- Cancer Research Center of Lyon (INSERM U1052/CNRS UMR 5286), Federation of Health Research of Eastern Lyon (CNRS UMS 3453/INSERM US7 Louis Léopold Oller), Lyon, France
| | - Xiaoli Zhang
- Center for Biostatistics, The Ohio State University, Columbus, Ohio
| | - Sissy M. Jhiang
- Molecular, Cellular and Developmental Biology Graduate Program, The Ohio State University, Columbus, Ohio
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio
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Solmaz S, Adan Gokbulut A, Cincin B, Ozdogu H, Boga C, Cakmakoglu B, Kozanoglu I, Baran Y. Therapeutic Potential of Apigenin, a Plant Flavonoid, for Imatinib-Sensitive and Resistant Chronic Myeloid Leukemia Cells. Nutr Cancer 2014; 66:599-612. [DOI: 10.1080/01635581.2014.894099] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Akter R, Uddin SJ, Grice ID, Tiralongo E. Cytotoxic activity screening of Bangladeshi medicinal plant extracts. J Nat Med 2013; 68:246-52. [PMID: 23846168 DOI: 10.1007/s11418-013-0789-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 06/10/2013] [Indexed: 12/27/2022]
Abstract
The cytotoxic activity of 23 crude methanol extracts from 19 Bangladeshi medicinal plants was investigated against healthy mouse fibroblasts (NIH3T3), healthy monkey kidney (VERO) and four human cancer cell lines (gastric, AGS; colon, HT-29; and breast, MCF-7 and MDA-MB-231) using MTT assay. High cytotoxicity across all cell lines tested was exhibited by Aegiceras corniculatum (fruit) and Hymenodictyon excelsum (bark) extracts (IC50 values ranging from 0.0005 to 0.9980 and 0.08 to 0.44 mg/mL, respectively). Fourteen extracts from 11 plant species, namely Clitoria ternatea (flower and leaf), Dillenia indica (leaf), Diospyros peregrina (leaf), Dipterocarpus turbinatus (bark and leaf), Ecbolium viride (leaf), Glinus oppositifolius (whole plant), Gnaphalium luteoalbum (leaf), Jasminum sambac (leaf), Lannea coromandelica (bark and leaf), Mussaenda glabrata (leaf) and Saraca asoca (leaf), were also significantly cytotoxic (IC50 < 1.0 mg/mL) against at least one of the cancer cell lines tested. More selectively, Avicennia alba (leaf), C. ternatea (flower and leaf), Caesalpinia pulcherrima (leaf), E. viride (leaf) and G. oppositifolius (whole plant) showed cytotoxicity only against both of the breast cancer cell lines (MCF-7 and MDA-MB-231). In contrast, C. ternatea (flower and leaf) exhibited high cytotoxic activity against MDA-MB-231 (IC50 values of 0.11 and 0.49 mg/mL, respectively), whereas E. viride and G. oppositifolius whole plant extracts exhibited high activity against MCF-7 cells (IC50 values of 0.06 and 0.15 mg/mL, respectively). The cytotoxic activity test results for 9 of the plant species correlate with their traditional use as anticancer agents, thus making them interesting sources for further drug development.
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Affiliation(s)
- Raushanara Akter
- School of Pharmacy and Griffith Health Institute, Griffith University, Gold Coast Campus, Gold Coast, Queensland, 4222, Australia
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Zhong B, Chennamaneni S, Lama R, Yi X, Geldenhuys WJ, Pink JJ, Dowlati A, Xu Y, Zhou A, Su B. Synthesis and anticancer mechanism investigation of dual Hsp27 and tubulin inhibitors. J Med Chem 2013; 56:5306-20. [PMID: 23767669 DOI: 10.1021/jm4004736] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Heat shock protein 27 (Hsp27) is a chaperone protein, and its expression is increased in response to various stress stimuli including anticancer chemotherapy, which allows the cells to survive and causes drug resistance. We previously identified lead compounds that bound to Hsp27 and tubulin via proteomic approaches. Systematic ligand based optimization in the current study significantly increased the cell growth inhibition and apoptosis inducing activities of the compounds. Compared to the lead compounds, one of the new derivatives exhibited much better potency to inhibit tubulin polymerization but a decreased activity to inhibit Hsp27 chaperone function, suggesting that the structural modification dissected the dual targeting effects of the compound. The most potent compounds 20 and 22 exhibited strong cell proliferation inhibitory activities at subnanomolar concentration against 60 human cancer cell lines conducted by Developmental Therapeutic Program at the National Cancer Institute and represented promising candidates for anticancer drug development.
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Affiliation(s)
- Bo Zhong
- Department of Chemistry, College of Sciences and Health Professions, Cleveland State University , 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
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Molecular basis for the action of a dietary flavonoid revealed by the comprehensive identification of apigenin human targets. Proc Natl Acad Sci U S A 2013; 110:E2153-62. [PMID: 23697369 DOI: 10.1073/pnas.1303726110] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Flavonoids constitute the largest class of dietary phytochemicals, adding essential health value to our diet, and are emerging as key nutraceuticals. Cellular targets for dietary phytochemicals remain largely unknown, posing significant challenges for the regulation of dietary supplements and the understanding of how nutraceuticals provide health value. Here, we describe the identification of human cellular targets of apigenin, a flavonoid abundantly present in fruits and vegetables, using an innovative high-throughput approach that combines phage display with second generation sequencing. The 160 identified high-confidence candidate apigenin targets are significantly enriched in three main functional categories: GTPase activation, membrane transport, and mRNA metabolism/alternative splicing. This last category includes the heterogeneous nuclear ribonucleoprotein A2 (hnRNPA2), a factor involved in splicing regulation, mRNA stability, and mRNA transport. Apigenin binds to the C-terminal glycine-rich domain of hnRNPA2, preventing hnRNPA2 from forming homodimers, and therefore, it perturbs the alternative splicing of several human hnRNPA2 targets. Our results provide a framework to understand how dietary phytochemicals exert their actions by binding to many functionally diverse cellular targets. In turn, some of them may modulate the activity of a large number of downstream genes, which is exemplified here by the effects of apigenin on the alternative splicing activity of hnRNPA2. Hence, in contrast to small-molecule pharmaceuticals designed for defined target specificity, dietary phytochemicals affect a large number of cellular targets with varied affinities that, combined, result in their recognized health benefits.
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Alam R, Schultz CR, Golembieski WA, Poisson LM, Rempel SA. PTEN suppresses SPARC-induced pMAPKAPK2 and inhibits SPARC-induced Ser78 HSP27 phosphorylation in glioma. Neuro Oncol 2013; 15:451-61. [PMID: 23382286 DOI: 10.1093/neuonc/nos326] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Secreted protein acidic and rich in cysteine (SPARC) is overexpressed in astrocytomas (World Health Organization grades II-IV). We previously demonstrated that SPARC promotes glioma migration and invasion-in part, by activating the P38 mitogen-activated protein kinase (MAPK)-heat shock protein (HSP)27 signaling pathway. The commonly lost tumor suppressor phosphatase and tensin homolog (PTEN) suppresses SPARC-induced migration, which is accompanied by suppression of Shc-Ras-Raf-MEK-ERK1/2 and Akt signaling. As PTEN completely suppresses SPARC-induced migration, we proposed that PTEN must also interfere with SPARC-induced HSP27 signaling. Therefore, this study determined the effects of PTEN expression on SPARC-induced expression and phosphorylation of HSP27. METHODS Control and SPARC-expressing clones transfected with control- or PTEN-expression plasmids were plated on fibronectin-coated tissue culture plates for 3, 6, 24, and 48 h and then lysed. Equal amounts of protein were subjected to Western blot and densitometric analyses. RESULTS The results show that SPARC enhances phosphorylated (p)P38 MAPK, phosphorylated MAPK-activated protein kinase 2 (pMAPKAPK2), and serine (Ser)78 HSP27 phosphorylation relative to total HSP27. PTEN suppresses pAkt and pMAPKAPK2, suggesting that PTEN effects are downstream of pP38 MAPK. PTEN suppressed SPARC-induced sustained phosphorylation at Ser78 HSP27. As the level of total HSP27 differed based on the presence of SPARC or PTEN, the ratios of phosphorylation-specific to total HSP27 were examined. The data demonstrate that SPARC-induced phosphorylation at Ser78 remains elevated despite increasing levels of total HSP27. In contrast, PTEN inhibits SPARC-induced increases in Ser78 HSP27 phosphorylation relative to total HSP27. CONCLUSION These data describe a novel mechanism whereby PTEN inhibits SPARC-induced migration through suppression and differential regulation of pAkt and the P38 MAPK-MAPKAPK2-HSP27 signaling pathway.
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Affiliation(s)
- Ridwan Alam
- Barbara Jane Levy Laboratory of Molecular Neuro-Oncology, Hermelin Brain Tumor Center, Department of Neurosurgery, Education and Research Bldg., Henry Ford Hospital, 2799 West Grand Blvd., Detroit, MI 48202, USA
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Abubakar MB, Abdullah WZ, Sulaiman SA, Suen AB. A review of molecular mechanisms of the anti-leukemic effects of phenolic compounds in honey. Int J Mol Sci 2012. [PMID: 23203111 PMCID: PMC3509627 DOI: 10.3390/ijms131115054] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hematologic malignancies constitute about 9% of all new cases of cancers as reported via the GLOBOCAN series by International Agency for Research on Cancer (IARC) in 2008. So far, the conventional therapeutic and surgical approaches to cancer therapy have not been able to curtail the rising incidence of cancers, including hematological malignancies, worldwide. The last decade has witnessed great research interest in biological activities of phenolic compounds that include anticancer, anti-oxidation and anti-inflammation, among other things. A large number of anticancer agents combat cancer through cell cycle arrest, induction of apoptosis and differentiation, as well as through inhibition of cell growth and proliferation, or a combination of two or more of these mechanisms. Various phenolic compounds from different sources have been reported to be promising anticancer agents by acting through one of these mechanisms. Honey, which has a long history of human consumption both for medicinal and nutritional uses, contains a variety of phenolic compounds such as flavonoids, phenolic acids, coumarins and tannins. This paper presents a review on the molecular mechanisms of the anti-leukemic activity of various phenolic compounds on cell cycle, cell growth and proliferation and apoptosis, and it advocates that more studies should be conducted to determine the potential role of honey in both chemoprevention and chemotherapy in leukemia.
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Affiliation(s)
- Murtala B. Abubakar
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +60-14-606-1009 or +234-80-35925103; Fax: +609-765-3370
| | - Wan Zaidah Abdullah
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia; E-Mail:
| | - Siti Amrah Sulaiman
- Department of Pharmacology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia; E-Mail:
| | - Ang Boon Suen
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia; E-Mail:
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Dey H, Liu ZR. Phosphorylation of p68 RNA helicase by p38 MAP kinase contributes to colon cancer cells apoptosis induced by oxaliplatin. BMC Cell Biol 2012; 13:27. [PMID: 23110695 PMCID: PMC3519718 DOI: 10.1186/1471-2121-13-27] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 10/15/2012] [Indexed: 12/28/2022] Open
Abstract
Background We previously demonstrated that p68 phosphorylation at threonine residues correlates with cancer cell apoptosis under the treatments of TNF-α and TRAIL (Yang, L. Mol Cancer Res Vol 3, pp 355–63 2005). Results In this report, we characterized the role of p68 phosphorylation in apoptosis induction under the treatment of oxaliplatin in the colon cancer cells. Our data suggest that oxaliplatin treatment activates p38 MAP kinase, which subsequently phosphorylates p68 at T564 and/or T446. The phosphorylation of p68, at least partially, mediates the effects of the drug on apoptosis induction, as mutations at these two sites greatly reduce the cancer cell death. Conclusion Our studies reveal an important molecular mechanism that mediates the effects of anti-cancer drug, providing a potential strategy for improving cancer treatment.
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Affiliation(s)
- Heena Dey
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
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36
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Arango D, Parihar A, Villamena FA, Wang L, Freitas MA, Grotewold E, Doseff AI. Apigenin induces DNA damage through the PKCδ-dependent activation of ATM and H2AX causing down-regulation of genes involved in cell cycle control and DNA repair. Biochem Pharmacol 2012; 84:1571-80. [PMID: 22985621 DOI: 10.1016/j.bcp.2012.09.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 09/04/2012] [Accepted: 09/10/2012] [Indexed: 12/30/2022]
Abstract
Apigenin, an abundant plant flavonoid, exhibits anti-proliferative and anti-carcinogenic activities through mechanisms yet not fully defined. In the present study, we show that the treatment of leukemia cells with apigenin resulted in the induction of DNA damage preceding the activation of the apoptotic program. Apigenin-induced DNA damage was mediated by p38 and protein kinase C-delta (PKCδ), yet was independent of reactive oxygen species or caspase activity. Treatment of monocytic leukemia cells with apigenin induced the phosphorylation of the ataxia-telangiectasia mutated (ATM) kinase and histone H2AX, two key regulators of the DNA damage response, without affecting the ataxia-telangiectasia mutated and Rad-3-related (ATR) kinase. Silencing and pharmacological inhibition of PKCδ abrogated ATM and H2AX phosphorylation, whereas inhibition of p38 reduced H2AX phosphorylation independently of ATM. We established that apigenin delayed cell cycle progression at G1/S and increased the number of apoptotic cells. In addition, genome-wide mRNA analyses showed that apigenin-induced DNA damage led to down-regulation of genes involved in cell-cycle control and DNA repair. Taken together, the present results show that the PKCδ-dependent activation of ATM and H2AX define the signaling networks responsible for the regulation of DNA damage promoting genome-wide mRNA alterations that result in cell cycle arrest, hence contributing to the anti-carcinogenic activities of this flavonoid.
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Affiliation(s)
- Daniel Arango
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA
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Tucci P. Caloric restriction: is mammalian life extension linked to p53? Aging (Albany NY) 2012; 4:525-34. [PMID: 22983298 PMCID: PMC3461340 DOI: 10.18632/aging.100481] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 08/21/2012] [Indexed: 12/21/2022]
Abstract
Caloric restriction, that is limiting food intake, is recognized in mammals as the best characterized and most reproducible strategy for extending lifespan, retarding physiological aging and delaying the onset of age-associated diseases. The aim of this mini review is to argue that p53 is the connection in the abilities of both the Sirt-1 pathway and the TOR pathway to impact on longevity of cells and organisms. This novel, lifespan regulating function of p53 may be evolutionarily more ancient than its relatively recent role in apoptosis and tumour suppression, and is likely to provide many new insights into lifespan modulation.
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Affiliation(s)
- Paola Tucci
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK.
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Bucur O, Stancu AL, Khosravi-Far R, Almasan A. Analysis of apoptosis methods recently used in Cancer Research and Cell Death & Disease publications. Cell Death Dis 2012; 3:e263. [PMID: 22297295 PMCID: PMC3288344 DOI: 10.1038/cddis.2012.2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Sun Y, Zhou M, Fu D, Xu B, Fang T, Ma Y, Chen J, Zhang J. Ubiquitination of heat shock protein 27 is mediated by its interaction with Smad ubiquitination regulatory factor 2 in A549 cells. Exp Lung Res 2011; 37:568-73. [DOI: 10.3109/01902148.2011.619627] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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40
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Rufini A, Melino G. Cell death pathology: the war against cancer. Biochem Biophys Res Commun 2011; 414:445-50. [PMID: 21971555 DOI: 10.1016/j.bbrc.2011.09.110] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Accepted: 09/21/2011] [Indexed: 12/25/2022]
Abstract
Programmed cell death was a fundamental discovery, awarded with the Nobel price in 2002 to Sulston, Brenner and Horvitz. Since then it has been clear that alteration of apoptotic pathways is a common feature of tumors, enabling cancer cells to survive chemotherapeutic interventions. Thus, apoptosis is an attractive target in cancer therapy, with the aim to revert the cancer-related alterations of the cell death machinery. Here, we overview the fundamental apoptotic pathways and summarize the attempts to target apoptosis to restore cell death in cancer cells with a special focus on the p53-family and autophagy.
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Abstract
The strong interest in cell death, and the shift in emphasis from basic mechanisms to translational aspects fostered the launch last year of the new sister journal of Cell Death and Differentiation, named Cell Death and Disease, to reflect its stronger focus towards clinical applications. Here, we review that first year of activity, which reflects an enthusiastic response by the scientific community. On the basis of this, we now launch two novel initiatives, the start of a new section dedicated to cancer metabolism and the opening of a new editorial office in Shanghai.
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42
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Abdelaziz DHA, Gavrilin MA, Akhter A, Caution K, Kotrange S, Khweek AA, Abdulrahman BA, Hassan ZA, El-Sharkawi FZ, Bedi SS, Ladner K, Gonzalez-Mejia ME, Doseff AI, Mostafa M, Kanneganti TD, Guttridge D, Marsh CB, Wewers MD, Amer AO. Asc-dependent and independent mechanisms contribute to restriction of legionella pneumophila infection in murine macrophages. Front Microbiol 2011; 2:18. [PMID: 21713115 PMCID: PMC3112328 DOI: 10.3389/fmicb.2011.00018] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Accepted: 01/25/2011] [Indexed: 11/13/2022] Open
Abstract
The apoptosis-associated speck-like protein containing a caspase recruitment domain (Asc) is an adaptor molecule that mediates inflammatory and apoptotic signals. Legionella pneumophila is an intracellular bacterium and the causative agent of Legionnaire's pneumonia. L. pneumophila is able to cause pneumonia in immuno-compromised humans but not in most inbred mice. Murine macrophages that lack the ability to activate caspase-1, such as caspase(-1-/-) and Nlrc4(-/-) allow L. pneumophila infection. This permissiveness is attributed mainly to the lack of active caspase-1 and the absence of its down stream substrates such as caspase-7. However, the role of Asc in control of L. pneumophila infection in mice is unclear. Here we show that caspase-1 is moderately activated in Asc(-/-) macrophages and that this limited activation is required and sufficient to restrict L. pneumophila growth. Moreover, Asc-independent activation of caspase-1 requires bacterial flagellin and is mainly detected in cellular extracts but not in culture supernatants. We also demonstrate that the depletion of Asc from permissive macrophages enhances bacterial growth by promoting L. pneumophila-mediated activation of the NF-κB pathway and decreasing caspase-3 activation. Taken together, our data demonstrate that L. pneumophila infection in murine macrophages is controlled by several mechanisms: Asc-independent activation of caspase-1 and Asc-dependent regulation of NF-κB and caspase-3 activation.
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Affiliation(s)
- Dalia H A Abdelaziz
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Center for Microbial Interface Biology and the Department of Internal Medicine, Ohio State University Columbus, OH, USA
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