1
|
Lee IT, Yang CC, Yang CM. Harnessing peroxisome proliferator-activated receptor γ agonists to induce Heme Oxygenase-1: a promising approach for pulmonary inflammatory disorders. Cell Commun Signal 2024; 22:125. [PMID: 38360670 PMCID: PMC10868008 DOI: 10.1186/s12964-024-01501-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/27/2024] [Indexed: 02/17/2024] Open
Abstract
The activation of peroxisome proliferator-activated receptor (PPAR)-γ has been extensively shown to attenuate inflammatory responses in conditions such as asthma, acute lung injury, and acute respiratory distress syndrome, as demonstrated in animal studies. However, the precise molecular mechanisms underlying these inhibitory effects remain largely unknown. The upregulation of heme oxygenase-1 (HO-1) has been shown to confer protective effects, including antioxidant, antiapoptotic, and immunomodulatory effects in vitro and in vivo. PPARγ is highly expressed not only in adipose tissues but also in various other tissues, including the pulmonary system. Thiazolidinediones (TZDs) are highly selective agonists for PPARγ and are used as antihyperglycemic medications. These observations suggest that PPARγ agonists could modulate metabolism and inflammation. Several studies have indicated that PPARγ agonists may serve as potential therapeutic candidates in inflammation-related diseases by upregulating HO-1, which in turn modulates inflammatory responses. In the respiratory system, exposure to external insults triggers the expression of inflammatory molecules, such as cytokines, chemokines, adhesion molecules, matrix metalloproteinases, and reactive oxygen species, leading to the development of pulmonary inflammatory diseases. Previous studies have demonstrated that the upregulation of HO-1 protects tissues and cells from external insults, indicating that the induction of HO-1 by PPARγ agonists could exert protective effects by inhibiting inflammatory signaling pathways and attenuating the development of pulmonary inflammatory diseases. However, the mechanisms underlying TZD-induced HO-1 expression are not well understood. This review aimed to elucidate the molecular mechanisms through which PPARγ agonists induce the expression of HO-1 and explore how they protect against inflammatory and oxidative responses.
Collapse
Affiliation(s)
- I-Ta Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 110301, Taiwan
| | - Chien-Chung Yang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital at Taoyuan, Taoyuan, 333008, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, 333323, Taiwan
| | - Chuen-Mao Yang
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, New Taipei City, 242062, Taiwan.
| |
Collapse
|
2
|
Retraction: ATP Mediates NADPH Oxidase/ROS Generation and COX-2/PGE2 Expression in A549 Cells: Role of P2 Receptor-Dependent STAT3 Activation. PLoS One 2022; 17:e0268877. [PMID: 35587471 PMCID: PMC9119439 DOI: 10.1371/journal.pone.0268877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
3
|
Mori Y, Shiratsuchi N, Sato N, Chaya A, Tanimura N, Ishikawa S, Kato M, Kameda I, Kon S, Haraoka Y, Ishitani T, Fujita Y. Extracellular ATP facilitates cell extrusion from epithelial layers mediated by cell competition or apoptosis. Curr Biol 2022; 32:2144-2159.e5. [PMID: 35417667 DOI: 10.1016/j.cub.2022.03.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/28/2022] [Accepted: 03/18/2022] [Indexed: 12/19/2022]
Abstract
For the maintenance of epithelial homeostasis, various aberrant or dysfunctional cells are actively eliminated from epithelial layers. This cell extrusion process mainly falls into two modes: cell-competition-mediated extrusion and apoptotic extrusion. However, it is not clearly understood whether and how these processes are governed by common molecular mechanisms. In this study, we demonstrate that the reactive oxygen species (ROS) levels are elevated within a wide range of epithelial layers around extruding transformed or apoptotic cells. The downregulation of ROS suppresses the extrusion process. Furthermore, ATP is extracellularly secreted from extruding cells, which promotes the ROS level and cell extrusion. Moreover, the extracellular ATP and ROS pathways positively regulate the polarized movements of surrounding cells toward extruding cells in both cell-competition-mediated and apoptotic extrusion. Hence, extracellular ATP acts as an "extrude me" signal and plays a prevalent role in cell extrusion, thereby sustaining epithelial homeostasis and preventing pathological conditions or disorders.
Collapse
Affiliation(s)
- Yusuke Mori
- Department of Molecular Oncology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto-city, Kyoto 606-8501, Japan; Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan
| | - Naoka Shiratsuchi
- Department of Molecular Oncology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto-city, Kyoto 606-8501, Japan
| | - Nanami Sato
- Department of Molecular Oncology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto-city, Kyoto 606-8501, Japan; Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan
| | - Azusa Chaya
- Department of Molecular Oncology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto-city, Kyoto 606-8501, Japan
| | - Nobuyuki Tanimura
- Department of Molecular Oncology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto-city, Kyoto 606-8501, Japan; Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan
| | - Susumu Ishikawa
- Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan
| | - Mugihiko Kato
- Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan
| | - Ikumi Kameda
- Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan
| | - Shunsuke Kon
- Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan
| | - Yukinari Haraoka
- Department of Homeostatic Regulation, Division of Cellular and Molecular Biology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tohru Ishitani
- Department of Homeostatic Regulation, Division of Cellular and Molecular Biology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yasuyuki Fujita
- Department of Molecular Oncology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto-city, Kyoto 606-8501, Japan; Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University Graduate School of Chemical Sciences and Engineering, Kita-15 Nishi-7, Kita-Ku, Sapporo 060-0815, Japan.
| |
Collapse
|
4
|
Widjaya AS, Liu Y, Yang Y, Yin W, Liang J, Jiang Y. Tumor-permeable smart liposomes by modulating the tumor microenvironment to improve the chemotherapy. J Control Release 2022; 344:62-79. [PMID: 35182612 DOI: 10.1016/j.jconrel.2022.02.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/28/2022] [Accepted: 02/14/2022] [Indexed: 12/14/2022]
Abstract
Low levels of accumulation and permeability in tumors are two primary reasons for the limited efficacy of conventional antineoplastic nanodrugs. In the present study, based on an original corosolic acid liposome (CALP) carrier with the functions of cell penetration, tumor permeability and anti-inflammation developed by our previous work, a versatile PTX/CALP was achieved by CALP loading paclitaxel (PTX). Compared to conventional PTX liposomes (PTX/LP) prepared by cholesterol and phospholipid, PTX/CALP exhibited extremely increasing cellular uptake and cytotoxicity in vitro, and in vivo enhancing the accumulation and permeability of tumor, thus significantly improving the antitumor efficacy. Further evidence indicated that PTX/CALP conspicuously promoted the recruitment of CD8+ T cells as well as reduced the infiltration of regulatory T cells and M2 macrophages into tumor by inducing enhanced immunogenic cell death (ICD) and down-regulating the inflammation level. Therefore, the improvement of efficacy was also attributed to the superiorities of PTX/CALP in modulating the inflammatory and immunosuppressive tumor microenvironment. Overall, the smart PTX liposomes based on the multi-functional CALP carrier without any modification could overcome the harsh tumor biological barriers, enhance the induction of ICD and then achieve satisfactory efficacy, suggesting its promising potentials in industrial transfer and clinical application.
Collapse
Affiliation(s)
- Andy Samuel Widjaya
- Key Laboratory of Smart Drug Delivery, Ministry of Education (Fudan University), Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yunhu Liu
- Key Laboratory of Smart Drug Delivery, Ministry of Education (Fudan University), Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yueying Yang
- Key Laboratory of Smart Drug Delivery, Ministry of Education (Fudan University), Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Weiwei Yin
- Key Laboratory of Smart Drug Delivery, Ministry of Education (Fudan University), Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jianying Liang
- Key Laboratory of Smart Drug Delivery, Ministry of Education (Fudan University), Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yanyan Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education (Fudan University), Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China.
| |
Collapse
|
5
|
Use of cucurbitacins for lung cancer research and therapy. Cancer Chemother Pharmacol 2021; 88:1-14. [PMID: 33825035 DOI: 10.1007/s00280-021-04265-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 03/17/2021] [Indexed: 02/05/2023]
Abstract
As the main substance in some traditional Chinese medicines, cucurbitacins have been used to treat hepatitis for decades in China. Currently, the use of cucurbitacins against cancer and other diseases has achieved towering popularity among researchers worldwide, as detailed in this review with summarized tables. Numerous studies have reported the potential tumor-killing activities of cucurbitacins in multiple aspects of human malignancies. Continuous research on its anticancer activity mechanisms also brings a glimmer of light to the treatment of patients with lung cancer. In line with the promising roles of cucurbitacins against cancer, through various molecular signaling pathways, it is justifiable to propose the use of cucurbitacins as a potential mainline chemotherapy before the onset and after the diagnosis of lung cancers. Here, this article mainly summarized the findings about the biological functions and underlying mechanisms of cucurbitacins on lung cancer pathogenesis and treatment. In addition, we also discussed the safety and efficacy of their application for further research and even clinical practice.
Collapse
|
6
|
Al Dow M, Silveira MAD, Poliquin A, Tribouillard L, Fournier É, Trébaol E, Secco B, Villot R, Tremblay F, Bilodeau S, Laplante M. Control of adipogenic commitment by a STAT3-VSTM2A axis. Am J Physiol Endocrinol Metab 2021; 320:E259-E269. [PMID: 33196296 PMCID: PMC8260376 DOI: 10.1152/ajpendo.00314.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
White adipose tissue (WAT) is a dynamic organ that plays crucial roles in controlling metabolic homeostasis. During development and periods of energy excess, adipose progenitors are recruited and differentiate into adipocytes to promote lipid storage capability. The identity of adipose progenitors and the signals that promote their recruitment are still incompletely characterized. We have recently identified V-set and transmembrane domain-containing protein 2A (VSTM2A) as a novel protein enriched in preadipocytes that amplifies adipogenic commitment. Despite the emerging role of VSTM2A in promoting adipogenesis, the molecular mechanisms regulating Vstm2a expression in preadipocytes are still unknown. To define the molecular mechanisms controlling Vstm2a expression, we have treated preadipocytes with an array of compounds capable of modulating established regulators of adipogenesis. Here, we report that Vstm2a expression is positively regulated by PI3K/mTOR and cAMP-dependent signaling pathways and repressed by the MAPK pathway and the glucocorticoid receptor. By integrating the impact of all the molecules tested, we identified signal transducer and activator of transcription 3 (STAT3) as a novel downstream transcription factor affecting Vstm2a expression. We show that activation of STAT3 increased Vstm2a expression, whereas its inhibition repressed this process. In mice, we found that STAT3 phosphorylation is elevated in the early phases of WAT development, an effect that strongly associates with Vstm2a expression. Our findings identify STAT3 as a key transcription factor regulating Vstm2a expression in preadipocytes.NEW & NOTEWORTHY cAMP-dependent and PI3K-mTOR signaling pathways promote the expression of Vstm2a. STAT3 is a key transcription factor that controls Vstm2a expression in preadipocytes. STAT3 is activated in the early phases of WAT development, an effect that strongly associates with Vstm2a expression.
Collapse
Affiliation(s)
- Manal Al Dow
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
| | - Maruhen Amir Datsch Silveira
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec - Université Laval, Québec, Canada
| | - Audrée Poliquin
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
| | - Laura Tribouillard
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
| | - Éric Fournier
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec - Université Laval, Québec, Canada
- Centre de recherche en données massives de l'Université Laval, Québec, Canada
| | - Eva Trébaol
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
| | - Blandine Secco
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec - Université Laval, Québec, Canada
| | - Romain Villot
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
| | - Félix Tremblay
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
| | - Steve Bilodeau
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec - Université Laval, Québec, Canada
- Centre de recherche en données massives de l'Université Laval, Québec, Canada
- Département de biologie moléculaire, biochimie médicale et pathologie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Mathieu Laplante
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, Canada
- Centre de recherche sur le cancer de l'Université Laval, Université Laval, Québec, Canada
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Canada
| |
Collapse
|
7
|
Arnaud-Sampaio VF, Rabelo ILA, Bento CA, Glaser T, Bezerra J, Coutinho-Silva R, Ulrich H, Lameu C. Using Cytometry for Investigation of Purinergic Signaling in Tumor-Associated Macrophages. Cytometry A 2020; 97:1109-1126. [PMID: 32633884 DOI: 10.1002/cyto.a.24035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/25/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023]
Abstract
Tumor-associated macrophages are widely recognized for their importance in guiding pro-tumoral or antitumoral responses. Mediating inflammation or immunosuppression, these cells support many key events in cancer progression: cell growth, chemotaxis, invasiveness, angiogenesis and cell death. The communication between cells in the tumor microenvironment strongly relies on the secretion and recognition of several molecules, including damage-associated molecular patterns (DAMPs), such as adenosine triphosphate (ATP). Extracellular ATP (eATP) and its degradation products act as signaling molecules and have extensively described roles in immune response and inflammation, as well as in cancer biology. These multiple functions highlight the purinergic system as a promising target to investigate the interplay between macrophages and cancer cells. Here, we reviewed purinergic signaling pathways connecting cancer cells and macrophages, a yet poorly investigated field. Finally, we present a new tool for the characterization of macrophage phenotype within the tumor. Image cytometry emerges as a cutting-edge tool, capable of providing a broad set of information on cell morphology, expression of specific markers, and its cellular or subcellular localization, preserving cell-cell interactions within the tumor section and providing high statistical strength in small-sized experiments. Thus, image cytometry allows deeper investigation of tumor heterogeneity and interactions between these cells. © 2020 International Society for Advancement of Cytometry.
Collapse
Affiliation(s)
| | - Izadora L A Rabelo
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Carolina A Bento
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Talita Glaser
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Jean Bezerra
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Robson Coutinho-Silva
- Laboratory of Immunophysiology, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Henning Ulrich
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Claudiana Lameu
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
8
|
Cap KC, Kim JG, Hamza A, Park JB. P-Tyr42 RhoA GTPase amplifies superoxide formation through p47phox, phosphorylated by ROCK. Biochem Biophys Res Commun 2020; 523:972-978. [PMID: 31973815 DOI: 10.1016/j.bbrc.2020.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 01/05/2020] [Indexed: 10/25/2022]
Abstract
Optimal levels of reactive oxygen species (ROS) play a critical role in cellular physiological function. For production of intracellular superoxide, NADPH oxidase is one of the sources. Rac1/2 and RhoA GTPases are involved in regulation of NADPH oxidase activity and Tyr42 phosphorylation of RhoA (p-Tyr42 RhoA) seems significant in this regard as it was recently shown that hydrogen peroxide was able to increase p-Tyr42 RhoA levels. Phorbol myristate acetate (PMA), a tumor promoter, also induces production of superoxides; PMA activates Src, a tyrosine kinase, and increases p-Tyr42 RhoA levels. In exploring the mechanism of PMA effects, we reduced RhoA levels in test cells with si-RhoA and then restoration of various versions of RhoA for effect in response of the cells to PMA and producing superoxides. Restoration of RhoA Y42F (a dephospho-mimic form) still had reduced superoxide formation in response to PMA, compared with WT and Y42E RhoA. This was similarly seen with assays for cell migration and proliferation with cells responding to PMA. Y27632, a ROCK (Rho associated coiled coil kinase) inhibitor, also inhibited superoxide production, and also reduced p-Y416 Src and p-p47phox levels. A ROCK active fragment was also able to phosphorylate p47phox at Ser345 residue (p-Ser345 p47phox), a component of NADPH oxidase. Overall, we demonstrate that p-Tyr42 RhoA levels increase following PMA treatment and this is through production of superoxide and activation of Src. These in turn amplify superoxide production through ROCK phophorylation of p47phox and maintain a positive feedback loop for superoxide generation, and contribute to tumor progression.
Collapse
Affiliation(s)
- Kim Cuong Cap
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-Do, 24252, Republic of Korea; Institute of Research and Development, Duy Tan University, Danang, 550000, Viet Nam
| | - Jae-Gyu Kim
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-Do, 24252, Republic of Korea; Institute of Cell Differentiation and Aging, Hallym University College of Medicine, Chuncheon, Kangwon-Do, 24252, Republic of Korea
| | - Amir Hamza
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-Do, 24252, Republic of Korea
| | - Jae-Bong Park
- Department of Biochemistry, Hallym University College of Medicine, Chuncheon, Kangwon-Do, 24252, Republic of Korea; Institute of Cell Differentiation and Aging, Hallym University College of Medicine, Chuncheon, Kangwon-Do, 24252, Republic of Korea; Clinical and Translational Science Institute, eLmed Inc, Hallym University College of Medicine, Chuncheon, Kangwon-Do, 24252, Republic of Korea.
| |
Collapse
|
9
|
He J, Yin P, Xu K. Effect and Molecular Mechanisms of Traditional Chinese Medicine on Tumor Targeting Tumor-Associated Macrophages. Drug Des Devel Ther 2020; 14:907-919. [PMID: 32184560 PMCID: PMC7053810 DOI: 10.2147/dddt.s223646] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 02/05/2020] [Indexed: 12/17/2022] Open
Abstract
Traditional Chinese medicine (TCM) has been used as a significant cancer treatment method for many years in China. It has been demonstrated that TCM could assist in inhibiting the growth of tumors and prolonging the survival rates of cancer patients. Although the mechanism of TCM are still not clear, accumulating evidence has shown that they may be related to the tumor microenvironment (TME). Tumor-associated macrophages (TAMs) play a significant role in TME and are polarized to two phenotypes, M1 (classically activated) and M2 (alternatively activated) TAMs. The two different phenotypes of TAMs play converse roles in the TME and M2-polarized tumor-associated macrophages (M2-TAMs) always lead to poor prognosis in cancer patients compared to M1-polarized tumor-associated macrophages (M1-TAMs). In this review, the potential correlation between TCM and TAMs (especially the M2 phenotype) in tumor progression and promising TCM strategies targeting TAMs in cancer are discussed.
Collapse
Affiliation(s)
- Jing He
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Peihao Yin
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medicine University, Anhui, People’s Republic of China
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Ke Xu
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medicine University, Anhui, People’s Republic of China
- Interventional Cancer Institute of Chinese Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| |
Collapse
|
10
|
Guo D, Xu S, Yasen W, Zhang C, Shen J, Huang Y, Chen D, Zhu X. Tirapazamine-embedded polyplatinum(iv) complex: a prodrug combo for hypoxia-activated synergistic chemotherapy. Biomater Sci 2020; 8:694-701. [DOI: 10.1039/c9bm01640f] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A polyprodrug complex containing oxygen depleting chemodrugs and hypoxia-activated antitumor agents can serve as a promising drug delivery system for synergistic chemotherapy.
Collapse
Affiliation(s)
- Dongbo Guo
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Shuting Xu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wumaier Yasen
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Chuan Zhang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Jian Shen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biomedical Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210046
| | - Yu Huang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Dong Chen
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| |
Collapse
|
11
|
Yu X, Bao Y, Meng X, Wang S, Li T, Chang X, Xu W, Yang G, Bo T. Multi-pathway integrated adjustment mechanism of licorice flavonoids presenting anti-inflammatory activity. Oncol Lett 2019; 18:4956-4963. [PMID: 31612007 DOI: 10.3892/ol.2019.10793] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/08/2017] [Indexed: 12/29/2022] Open
Abstract
Glycyrrhiza, commonly known as licorice, is a herbal medicine that has been used for thousands of years. Licorice contains multiple flavonoids, which possess a variety of biological activities. On the basis of the anti-inflammatory effects of licorice flavonoids, the potential mechanism of action was investigated via a plasma metabolomics approach. A total of 9 differential endogenous metabolites associated with the therapeutic effect of licorice flavonoids were identified, including linoleic acid, sphingosine, tryptophanamide, corticosterone and leukotriene B4. Besides classical arachidonic acid metabolism, metabolism of sphingolipids, tryptophan and fatty acids, phospholipids synthesis, and other pathways were also involved. The multi-pathway integrated adjustment mechanism of licorice flavonoid action may reduce side effects in patients, along with any anti-inflammatory functions, which provides a foundation for identifying and developing novel, high-potential natural drugs with fewer side effects for clinical application.
Collapse
Affiliation(s)
- Xiaomeng Yu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Yongrui Bao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China.,Component Medicine Engineering Research Center of Liaoning Province, Dalian, Liaoning 116600, P.R. China.,Liaoning Province Modern Chinese Medicine Research Engineering Laboratory, Dalian, Liaoning 116600, P.R. China.,Liaoning University of Traditional Chinese Medicine-Agilent Technologies Modern TCM and Multi-omics Research Collaboration Laboratory, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Xiansheng Meng
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China.,Component Medicine Engineering Research Center of Liaoning Province, Dalian, Liaoning 116600, P.R. China.,Liaoning Province Modern Chinese Medicine Research Engineering Laboratory, Dalian, Liaoning 116600, P.R. China.,Liaoning University of Traditional Chinese Medicine-Agilent Technologies Modern TCM and Multi-omics Research Collaboration Laboratory, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Shuai Wang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China.,Component Medicine Engineering Research Center of Liaoning Province, Dalian, Liaoning 116600, P.R. China.,Liaoning Province Modern Chinese Medicine Research Engineering Laboratory, Dalian, Liaoning 116600, P.R. China.,Liaoning University of Traditional Chinese Medicine-Agilent Technologies Modern TCM and Multi-omics Research Collaboration Laboratory, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Tianjiao Li
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China.,Component Medicine Engineering Research Center of Liaoning Province, Dalian, Liaoning 116600, P.R. China.,Liaoning Province Modern Chinese Medicine Research Engineering Laboratory, Dalian, Liaoning 116600, P.R. China.,Liaoning University of Traditional Chinese Medicine-Agilent Technologies Modern TCM and Multi-omics Research Collaboration Laboratory, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Xin Chang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Weifeng Xu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Guanlin Yang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| | - Tao Bo
- Liaoning University of Traditional Chinese Medicine-Agilent Technologies Modern TCM and Multi-omics Research Collaboration Laboratory, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning 116600, P.R. China
| |
Collapse
|
12
|
Inhibition of secretory phospholipase A2 IIa attenuates prostaglandin E2-induced invasiveness in lung adenocarcinoma. Mol Cell Biochem 2019; 456:145-156. [PMID: 30684134 DOI: 10.1007/s11010-019-03500-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 01/19/2019] [Indexed: 12/31/2022]
Abstract
Secretory phospholipase A2 IIa (sPLA2 IIa) catalyzes the production of multiple inflammatory mediators that influence the development of lung and other cancers. The most potent of these carcinogenic mediators is prostaglandin E2 (PGE2). We hypothesize that sPLA2 IIa inhibition modulates the production of PGE2, and sPLA2 IIa inhibition exerts its antineoplastic effects via downregulation of PGE2 production. We aim to evaluate these relationships via analysis of PGE2-mediated growth regulation pathways. A549 and H1650 lung adenocarcinoma cells were assayed for PGE2 production in the presence of sPLA2 IIa inhibitor. A549 and H1650 cells were treated with PGE2 and immune blotting was performed to assess ICAM-1 expression and STAT-3 activity. PGE2-induced ICAM-1 expression was measured via immunofluorescence. A549 and H1650 cells were treated with PGE2 in the presence of STAT3 inhibitor and assayed for ICAM-1 expression. A549 cells were treated with PGE2 in the presence ICAM-1 blocking antibody and assayed for invasion. PGE2 stimulation significantly increased the invasiveness and proliferation of lung adenocarcinoma (invasion p < 0.05, proliferation p < 0.05 A549 cells, p < 0.005 H1650 cells). sPLA2 IIa inhibition reduced PGE2 secretion (p < 0.05). PGE2 stimulation significantly upregulated the expression of cell adhesion molecule ICAM-1 and the phosphorylation of anti-apoptotic transcription factor STAT3 (p < 0.05). STAT3 inhibition attenuated ICAM-1 expression demonstrating the dependence of ICAM-1 on the STAT3 pathway (p < 0.05). ICAM-1 blockade attenuated the pro-invasive effects of PGE2 (p < 0.05). sPLA2 IIa inhibition attenuates the potent effects of PGE2-induced invasiveness. This is mediated by decreasing pro-inflammatory and invasion-promoting ICAM-1via the STAT-3 pathway. These data further describe how sPLA2 IIa inhibition mechanistically exerts its anticancer effects and support its use as an antineoplastic agent.
Collapse
|
13
|
Dajani S, Saripalli A, Sharma-Walia N. Water transport proteins-aquaporins (AQPs) in cancer biology. Oncotarget 2018; 9:36392-36405. [PMID: 30555637 PMCID: PMC6284741 DOI: 10.18632/oncotarget.26351] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 10/22/2018] [Indexed: 02/06/2023] Open
Abstract
As highly conserved ubiquitous proteins, aquaporins (AQPs) play an imperative role in the development and progression of cancer. By trafficking water and other small molecules, AQPs play a vital role in preserving the cellular environment. Due to their critical role in cell stability and integrity, it would make sense that AQPs are involved in cancer progression. When AQPs alter the cellular environment, there may be several downstream effects such as alterations in cellular osmolality, volume, ionic composition, and signaling pathways. Changes in the intracellular levels of certain molecules serving as second messengers are synchronized by AQPs. Thus AQPs regulate numerous downstream effector signaling molecules that promote cancer development and progression. In numerous cancer types, AQP expression has shown a correlation with tumor stage and prognosis. Furthermore, AQPs assist in angiogenic and oxidative stress related damaging processes critical for cancer progression. This indicates that AQP proteins may be a viable therapeutic target or biomarker of cancer prognosis.
Collapse
Affiliation(s)
- Salah Dajani
- H.M. Bligh Cancer Research Laboratories, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Anand Saripalli
- H.M. Bligh Cancer Research Laboratories, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Neelam Sharma-Walia
- H.M. Bligh Cancer Research Laboratories, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| |
Collapse
|
14
|
Silva-Vilches C, Ring S, Mahnke K. ATP and Its Metabolite Adenosine as Regulators of Dendritic Cell Activity. Front Immunol 2018; 9:2581. [PMID: 30473700 PMCID: PMC6237882 DOI: 10.3389/fimmu.2018.02581] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/19/2018] [Indexed: 12/21/2022] Open
Abstract
Adenosine (Ado) is a well-studied neurotransmitter, but it also exerts profound immune regulatory functions. Ado can (i) actively be released by various cells into the tissue environment and can (ii) be produced through the degradation of extracellular ATP by the concerted action of CD39 and CD73. In this sequence of events, the ectoenzyme CD39 degrades ATP into ADP and AMP, respectively, and CD73 catalyzes the last step leading to the production of Ado. Extracellular ATP acts as a “danger” signal and stimulates immune responses, i.e. by inflammasome activation. Its degradation product Ado on the other hand acts rather anti-inflammatory, as it down regulates functions of dendritic cells (DCs) and dampens T cell activation and cytokine secretion. Thus, the balance of proinflammatory ATP and anti-inflammatory Ado that is regulated by CD39+/CD73+ immune cells, is important for decision making on whether tolerance or immunity ensues. DCs express both ectoenzymes, enabling them to produce Ado from extracellular ATP by activity of CD73 and CD39 and thus allow dampening of the proinflammatory activity of adjacent leukocytes in the tissue. On the other hand, as most DCs express at least one out of four so far known Ado receptors (AdoR), DC derived Ado can also act back onto the DCs in an autocrine manner. This leads to suppression of DC functions that are normally involved in stimulating immune responses. Moreover, ATP and Ado production thereof acts as “find me” signal that guides cellular interactions of leukocytes during immune responses. In this review we will state the means by which Ado producing DCs are able to suppress immune responses and how extracellular Ado conditions DCs for their tolerizing properties.
Collapse
Affiliation(s)
- Cinthia Silva-Vilches
- Department of Dermatology, Ruprecht-Karls-University Heidelberg, University Hospital, Heidelberg, Germany
| | - Sabine Ring
- Department of Dermatology, Ruprecht-Karls-University Heidelberg, University Hospital, Heidelberg, Germany
| | - Karsten Mahnke
- Department of Dermatology, Ruprecht-Karls-University Heidelberg, University Hospital, Heidelberg, Germany
| |
Collapse
|
15
|
Corrêa MG, Absy S, Tenenbaum H, Ribeiro FV, Cirano FR, Casati MZ, Pimentel SP. Resveratrol attenuates oxidative stress during experimental periodontitis in rats exposed to cigarette smoke inhalation. J Periodontal Res 2018; 54:225-232. [PMID: 30346038 DOI: 10.1111/jre.12622] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/17/2018] [Accepted: 09/12/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVES This study aimed at investigating the effect of the systemic administration of resveratrol (RESV) on oxidative stress during experimental periodontitis in rats subjected to cigarette smoke inhalation. MATERIAL AND METHODS Experimental periodontitis (EP) was induced in 26 male Wistar rats by the insertion of a ligature around one of the first mandibular and maxillary molars. The animals were assigned randomly to the following groups: cigarette smoke inhalation (CSI; 3 times/d, 8 minutes/d) + resveratrol (10 mg/Kg), that is, SMK + RESV (n = 13) and cigarette smoke inhalation + placebo, that is, SMK + PLAC (n = 13). The substances were administered daily for 30 days (19 days prior and 11 days following EP induction), and then, the animals were euthanized. The maxillary specimens were processed for morphometric analysis of bone loss, and the tissue surrounding the first maxillary molars was collected for mRNA quantification of Sirtuin 1 (SIRT1) by real-time PCR. The gingival tissues surrounding the mandibular first molars were collected for quantification of superoxide dismutase 1 (SOD1) and nicotinamide adenine dinucleotide phosphatase oxidase (NADPH) using an ELISA assay. RESULTS Reduced bone loss was demonstrated in animals in the SMK + RESV group as compared to those in the SMK + PLAC (P < 0.05) group on the basis of morphometric analysis. Resveratrol promoted higher levels of SIRT and SOD (P < 0.05) as well as reduced levels of NADPH oxidase (P < 0.05) were found in tissues derived from animals in the SMK + RESV group when compared to those in the SMK + PLAC group. CONCLUSION Resveratrol is an efficient therapeutic agent that reduces exacerbation of bone loss found in animals with EP that were also exposed to smoke. The results suggest that its effects could be mediated, at least in part, by its antioxidant and anti-inflammatory properties which attenuate the effects of oxidative stress on EP in the presence of cigarette smoke.
Collapse
Affiliation(s)
- Mônica Grazieli Corrêa
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Samir Absy
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Howard Tenenbaum
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil.,Department of Periodontology, Faculty of Dentistry, Toronto, Ontario, Canada.,Laboratory of Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,School of Dental Medicine, Department of Periodontics, Tel Aviv University, Tel Aviv, Israel.,Department of Dentistry, Sinai Health System, Tel Aviv, Israel
| | - Fernanda Vieira Ribeiro
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Fabiano Ribeiro Cirano
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Marcio Z Casati
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Suzana Peres Pimentel
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| |
Collapse
|
16
|
Li H, Min J, Mao X, Wang X, Yang Y, Chen Y. Edaravone ameliorates experimental autoimmune thyroiditis in rats through HO-1-dependent STAT3/PI3K/Akt pathway. Am J Transl Res 2018; 10:2037-2046. [PMID: 30093941 PMCID: PMC6079139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 05/26/2018] [Indexed: 06/08/2023]
Abstract
Autoimmune thyroiditis is among the most prevalent of all the autoimmunities in population. It is characterized as both cellular immune responses with T, B cells infiltrating to the thyroid gland followed by hypothyroidism as a result of destruction of the thyroid follicles and fibrous replacement of the parenchymal tissue, as well as immune response for TPO and Tg-antibody production. Experimental autoimmune thyroiditis (EAT) has been proven to be an ideal model to study autoimmune thyroiditis. In the present study, we induced an EAT model in rats and examined the effect of edaravone, a hydroxyl radical scavenging agent, on EAT severity and explored the mechanism. The results showed that edaravone reduced the severity score of thyroiditis dose-dependently and the levels of serum TPOAb, TgAb, T3 and T4. Edaravone significantly decreased the mRNA level of IL-17, but increased the mRNA level of IL-10, IL-4, TNF-α and IFN-γ. EAT model significantly induced oxidative stress, which was inhibited by the treatment of 10 mg/kg, 20 mg/kg or 40 mg/kg of edaravone. The EAT model significantly increased the Akt and STAT3 phosphorylation, but when rats were treated with 20 mg/kg or 40 mg/kg edaravone, they were significantly inhibited. The HO-1 expression was greatly increased by 20 mg/kg or 40 mg/kg edaravone. The PI3K inhibitor LY294002, Akt inhibitor triciribine or STAT3 inhibitor WP1066 all significantly decreased the severity score of thyroiditis in the EAT model group, while the HO-1 inhibitor ZnPP-IX increased the severity score of thyroiditis. These results confirm the invlovment of ROS and HO-1-dependent STAT3/PI3K/Akt pathway in the process of Hashimoto's thyroiditis and suggest the potential usage of edaravone in the therapy of it.
Collapse
Affiliation(s)
- Hong Li
- Department of Endocrinology, Long Hua Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 200032, China
| | - Jie Min
- Shanghai University of Traditional Chinese MedicineShanghai 200032, China
| | - Xiaoming Mao
- Shanghai University of Traditional Chinese MedicineShanghai 200032, China
| | - Xueyang Wang
- Shanghai University of Traditional Chinese MedicineShanghai 200032, China
| | - Yucheng Yang
- Shanghai University of Traditional Chinese MedicineShanghai 200032, China
| | - Yuting Chen
- Shanghai University of Traditional Chinese MedicineShanghai 200032, China
| |
Collapse
|
17
|
Izumi Y. [Anti-inflammatory action of the transcription factor Nrf2]. Nihon Yakurigaku Zasshi 2018; 152:209. [PMID: 30298844 DOI: 10.1254/fpj.152.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
|
18
|
Yu J, Chen J, Zhao H, Gao J, Li Y, Li Y, Xue J, Dahan A, Sun D, Zhang G, Zhang H. Integrative proteomics and metabolomics analysis reveals the toxicity of cationic liposomes to human normal hepatocyte cell line L02. Mol Omics 2018; 14:362-372. [PMID: 30247494 DOI: 10.1039/c8mo00132d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Changes in the expression of proteins and profiles of metabolites in L02 cells were investigated after exposure to CLs based on the iTRAQ and UHPLC-Q-TOF/MS, and proteomics data were coupled with metabolomics data to comprehensively assess the potential toxicity mechanisms of CLs.
Collapse
|
19
|
H1N1 influenza virus infection results in adverse pregnancy outcomes by disrupting tissue-specific hormonal regulation. PLoS Pathog 2017; 13:e1006757. [PMID: 29176767 PMCID: PMC5720832 DOI: 10.1371/journal.ppat.1006757] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 12/07/2017] [Accepted: 11/17/2017] [Indexed: 01/06/2023] Open
Abstract
Increased susceptibility to influenza virus infection during pregnancy has been attributed to immunological changes occurring before and during gestation in order to “tolerate” the developing fetus. These systemic changes are most often characterized by a suppression of cell-mediated immunity and elevation of humoral immune responses referred to as the Th1-Th2 shift. However, the underlying mechanisms which increase pregnant mothers’ risk following influenza virus infection have not been fully elucidated. We used pregnant BALB/c mice during mid- to late gestation to determine the impact of a sub-lethal infection with A/Brisbane/59/07 H1N1 seasonal influenza virus on completion of gestation. Maternal and fetal health status was closely monitored and compared to infected non-pregnant mice. Severity of infection during pregnancy was correlated with premature rupture of amniotic membranes (PROM), fetal survival and body weight at birth, lung viral load and degree of systemic and tissue inflammation mediated by innate and adaptive immune responses. Here we report that influenza virus infection resulted in dysregulation of inflammatory responses that led to pre-term labor, impairment of fetal growth, increased fetal mortality and maternal morbidity. We observed significant compartment-specific immune responses correlated with changes in hormonal synthesis and regulation. Dysregulation of progesterone, COX-2, PGE2 and PGF2α expression in infected pregnant mice was accompanied by significant remodeling of placental architecture and upregulation of MMP-9 early after infection. Collectively these findings demonstrate the potential of a seasonal influenza virus to initiate a powerful pro-abortive mechanism with adverse outcomes in fetal health. Maternal immunology is finely balanced to maintain a tolerant and supportive molecular environment for the developing fetus while continuing surveillance against foreign microbial threats. Influenza viral infection during pregnancy is a significant clinical risk for mothers and their newborns, increasing hospitalization, preterm birth, low birth weight, and maternal and neonatal deaths worldwide. In a mouse pregnancy model, we show how influenza virus infection disrupts the delicate and interconnected cytokine and hormonal signaling pathways that respond to respiratory pathogens. The health of mothers and offspring was impacted in our study, after pregnant mothers’ lung and placental architecture was compromised by infection. Influenza virus infection increased the stress on the mother’s body already present due to pregnancy, or reversed the hormonal environment required to establish and maintain healthy pregnancy. By dissecting the effects of inflammation post-infection throughout the mother’s anatomy, we can tailor anti-inflammatory treatments for the pregnant population. Also, thorough knowledge of immune responses will assist in tailoring vaccine design and dosage for this delicate period of women’s immunological and reproductive health.
Collapse
|
20
|
G6PD promotes renal cell carcinoma proliferation through positive feedback regulation of p-STAT3. Oncotarget 2017; 8:109043-109060. [PMID: 29312589 PMCID: PMC5752502 DOI: 10.18632/oncotarget.22566] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 09/22/2017] [Indexed: 02/06/2023] Open
Abstract
Ectopic Glucose 6-phosphate dehydrogenase (G6PD) expression plays important role in tumor cell metabolic reprogramming and results in poor prognosis of multiple malignancies. Our previous study indicated that G6PD is overexpressed in clear cell renal cell carcinoma (ccRCC), the most common subtype of RCC. However, its role in RCC is still unclear. Here, we demonstrate that G6PD is not only up-regulated in all types of RCC specimens but also displays higher activities in RCC cell lines. G6PD overexpression promoted RCC cell proliferation, altered cell cycle distribution, and enhanced xenografted RCC development. G6PD up-regulated ROS generation by facilitating NADPH-dependent NOX4 activation, which led to increased expression of p-STAT3 and CyclinD1. Enhanced ROS generation rescued the p-STAT3 and CyclinD1 expression reduction in G6PD-knockdown cells, while ROS scavengers reversed the up-regulated p-STAT3 and CyclinD1 expression in G6PD-overexpressing cells. Furthermore, p-STAT3 activated G6PD gene expression via binding to the G6PD promoter, demonstrating that p-STAT3 forms a positive feedback regulatory loop for G6PD overexpression. G6PD expression was up or down-regulated in response to the impact of p-STAT3 activators or inhibitors. Therefore, G6PD may be an effective RCC therapeutic target.
Collapse
|
21
|
Wang X, Li Y, Qian Y, Cao Y, Shriwas P, Zhang H, Chen X. Extracellular ATP, as an energy and phosphorylating molecule, induces different types of drug resistances in cancer cells through ATP internalization and intracellular ATP level increase. Oncotarget 2017; 8:87860-87877. [PMID: 29152126 PMCID: PMC5675678 DOI: 10.18632/oncotarget.21231] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/16/2017] [Indexed: 11/25/2022] Open
Abstract
Cancer cells are able to uptake extracellular ATP (eATP) via macropinocytosis to elevate intracellular ATP (iATP) levels, enhancing their survival in drug treatment. However, the involved drug resistance mechanisms are unknown. Here we investigated the roles of eATP as either an energy or a phosphorylating molecule in general drug resistance mediated by ATP internalization and iATP elevation. We report that eATP increased iATP levels and promoted drug resistance to various tyrosine kinase inhibitors (TKIs) and chemo-drugs in human cancer cell lines of five cancer types. In A549 lung cancer cells, the resistance was downregulated by macropinocytosis inhibition or siRNA knockdown of PAK1, an essential macropinocytosis enzyme. The elevated iATP upregulated the efflux activity of ABC transporters in A549 and SK-Hep-1 cells as well as phosphorylation of PDGFRα and proteins in the PDGFR-mediated Akt-mTOR and Raf-MEK signaling pathways in A549 cells. Similar phosphorylation upregulations were found in A549 tumors. These results demonstrate that eATP induces different types of drug resistance by eATP internalization and iATP elevation, implicating the ATP-rich tumor microenvironment in cancer drug resistance, expanding our understanding of the roles of eATP in the Warburg effect and offering new anticancer drug resistance targets.
Collapse
Affiliation(s)
- Xuan Wang
- Department of Biological Sciences, Ohio University, Athens, Ohio 45701, USA.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio 45701, USA.,The Edison Biotechnology Institute, Ohio University, Athens, Ohio 45701, USA
| | - Yunsheng Li
- The Edison Biotechnology Institute, Ohio University, Athens, Ohio 45701, USA
| | - Yanrong Qian
- The Edison Biotechnology Institute, Ohio University, Athens, Ohio 45701, USA
| | - Yanyang Cao
- Department of Biological Sciences, Ohio University, Athens, Ohio 45701, USA.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio 45701, USA.,The Edison Biotechnology Institute, Ohio University, Athens, Ohio 45701, USA
| | - Pratik Shriwas
- Department of Biological Sciences, Ohio University, Athens, Ohio 45701, USA.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio 45701, USA.,The Edison Biotechnology Institute, Ohio University, Athens, Ohio 45701, USA
| | - Haiyun Zhang
- Department of Biological Sciences, Ohio University, Athens, Ohio 45701, USA.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio 45701, USA.,The Edison Biotechnology Institute, Ohio University, Athens, Ohio 45701, USA
| | - Xiaozhuo Chen
- Department of Biological Sciences, Ohio University, Athens, Ohio 45701, USA.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio 45701, USA.,The Edison Biotechnology Institute, Ohio University, Athens, Ohio 45701, USA.,Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, USA.,Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio 45701, USA
| |
Collapse
|
22
|
Cheshmehkani A, Senatorov IS, Dhuguru J, Ghoneim O, Moniri NH. Free-fatty acid receptor-4 (FFA4) modulates ROS generation and COX-2 expression via the C-terminal β-arrestin phosphosensor in Raw 264.7 macrophages. Biochem Pharmacol 2017; 146:139-150. [PMID: 28943238 DOI: 10.1016/j.bcp.2017.09.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 09/19/2017] [Indexed: 02/06/2023]
Abstract
Agonism of the G protein-coupled free-fatty acid receptor-4 (FFA4) has been shown to promote numerous anti-inflammatory effects in macrophages that arise due to interaction with β-arrestin partner proteins. Humans express functionally distinct short and long FFA4 splice variants, such that FFA4-S signals through Gαq/11 and β-arrestin, while FFA4-L is intrinsically biased solely towards β-arrestin signaling. Recently, we and others have shown that phosphorylation of the FFA4 C-terminal tail is responsible for β-arrestin interactability and signaling. Given the significance of β-arrestin in the anti-inflammatory function of FFA4, the goal of this study was to examine the role of the C-terminal β-arrestin phosphosensor in FFA4 signaling induced by PMA and LPS in murine Raw 264.7 macrophages. Our data reveal for the first time that both FFA4 isoforms modulate PMA-induced ROS generation, and that abolishment of the FFA4-S, but not FFA4-L C-terminal phosphosensor, is detrimental to this effect. Furthermore, we show that while both isoforms reduce PMA-induced expression of COX-2, removal of the FFA4-S phosphosensor significantly decreases this response, suggesting that these effects of FFA4-S are β-arrestin mediated. On the contrary, FFA4-S, as well as the truncated C-terminal congener lacking the β-arrestin phosphosensor were both able to reduce LPS-induced NF-κB activity and ERK1/2 phosphorylation. However, FFA4-L and its corresponding mutant were incapable of modulating either, suggesting that these responses are mediated by G protein coupling. Taken together, our data reveal important structure-function and signaling differences between the two FFA4 isoforms, and for the first time link FFA4 to modulation of ROS in macrophages.
Collapse
Affiliation(s)
- Ameneh Cheshmehkani
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University Health Sciences Center, Mercer University, Atlanta, GA 30341, USA
| | - Ilya S Senatorov
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University Health Sciences Center, Mercer University, Atlanta, GA 30341, USA
| | - Jyothi Dhuguru
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Saint Joseph, Hartford, CT 06103, USA
| | - Ola Ghoneim
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Saint Joseph, Hartford, CT 06103, USA
| | - Nader H Moniri
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University Health Sciences Center, Mercer University, Atlanta, GA 30341, USA.
| |
Collapse
|
23
|
The Role of PGE 2 in Alveolar Epithelial and Lung Microvascular Endothelial Crosstalk. Sci Rep 2017; 7:7923. [PMID: 28801643 PMCID: PMC5554158 DOI: 10.1038/s41598-017-08228-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 07/06/2017] [Indexed: 12/26/2022] Open
Abstract
Disruption of the blood-air barrier, which is formed by lung microvascular endothelial and alveolar epithelial cells, is a hallmark of acute lung injury. It was shown that alveolar epithelial cells release an unidentified soluble factor that enhances the barrier function of lung microvascular endothelial cells. In this study we reveal that primarily prostaglandin (PG) E2 accounts for this endothelial barrier-promoting activity. Conditioned media from alveolar epithelial cells (primary ATI-like cells) collected from BALB/c mice and A549 cells increased the electrical resistance of pulmonary human microvascular endothelial cells, respectively. This effect was reversed by pretreating alveolar epithelial cells with a cyclooxygenase-2 inhibitor or by blockade of EP4 receptors on endothelial cells, and in A549 cells also by blocking the sphingosine-1-phosphate1 receptor. Cyclooxygenase-2 was constitutively expressed in A549 cells and in primary ATI-like cells, and was upregulated by lipopolysaccharide treatment. This was accompanied by enhanced PGE2 secretion into conditioned media. Therefore, we conclude that epithelium-derived PGE2 is a key regulator of endothelial barrier integrity via EP4 receptors under physiologic and inflammatory conditions. Given that pharmacologic treatment options are still unavailable for diseases with compromised air-blood barrier, like acute lung injury, our data thus support the therapeutic potential of selective EP4 receptor agonists.
Collapse
|
24
|
Jokela T, Kärnä R, Rauhala L, Bart G, Pasonen-Seppänen S, Oikari S, Tammi MI, Tammi RH. Human Keratinocytes Respond to Extracellular UTP by Induction of Hyaluronan Synthase 2 Expression and Increased Hyaluronan Synthesis. J Biol Chem 2017; 292:4861-4872. [PMID: 28188289 DOI: 10.1074/jbc.m116.760322] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 01/26/2017] [Indexed: 12/16/2022] Open
Abstract
The release of nucleotides into extracellular space is triggered by insults like wounding and ultraviolet radiation, resulting in stimulatory or inhibitory signals via plasma membrane nucleotide receptors. As similar insults are known to activate hyaluronan synthesis we explored the possibility that extracellular UTP or its breakdown products UDP and UMP act as mediators for hyaluronan synthase (HAS) activation in human epidermal keratinocytes. UTP increased hyaluronan both in the pericellular matrix and in the culture medium of HaCaT cells. 10-100 μm UTP strongly up-regulated HAS2 expression, although the other hyaluronan synthases (HAS1, HAS3) and hyaluronidases (HYAL1, HYAL2) were not affected. The HAS2 response was rapid and transient, with the maximum stimulation at 1.5 h. UDP exerted a similar effect, but higher concentrations were required for the response, and UMP showed no stimulation at all. Specific siRNAs against the UTP receptor P2Y2, and inhibitors of UDP receptors P2Y6 and P2Y14, indicated that the response to UTP was mediated mainly through P2Y2 and to a lesser extent via UDP receptors. UTP increased the phosphorylation of p38, ERK, CREB, and Ser-727 of STAT3 and induced nuclear translocation of pCaMKII. Inhibitors of PKC, p38, ERK, CaMKII, STAT3, and CREB partially blocked the activation of HAS2 expression, confirming the involvement of these pathways in the UTP-induced HAS2 response. The present data reveal a selective up-regulation of HAS2 expression by extracellular UTP, which is likely to contribute to the previously reported rapid activation of hyaluronan metabolism in response to tissue trauma or ultraviolet radiation.
Collapse
Affiliation(s)
- Tiina Jokela
- From the Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland
| | - Riikka Kärnä
- From the Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland
| | - Leena Rauhala
- From the Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland
| | - Genevieve Bart
- From the Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland
| | | | - Sanna Oikari
- From the Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland
| | - Markku I Tammi
- From the Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland
| | - Raija H Tammi
- From the Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland
| |
Collapse
|
25
|
Rumzhum NN, Ammit AJ. Cyclooxygenase 2: its regulation, role and impact in airway inflammation. Clin Exp Allergy 2016; 46:397-410. [PMID: 26685098 DOI: 10.1111/cea.12697] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Cyclooxygenase 2 (COX-2: official gene symbol - PTGS2) has long been regarded as playing a pivotal role in the pathogenesis of airway inflammation in respiratory diseases including asthma. COX-2 can be rapidly and robustly expressed in response to a diverse range of pro-inflammatory cytokines and mediators. Thus, increased levels of COX-2 protein and prostanoid metabolites serve as key contributors to pathobiology in respiratory diseases typified by dysregulated inflammation. But COX-2 products may not be all bad: prostanoids can exert anti-inflammatory/bronchoprotective functions in airways in addition to their pro-inflammatory actions. Herein, we outline COX-2 regulation and review the diverse stimuli known to induce COX-2 in the context of airway inflammation. We discuss some of the positive and negative effects that COX-2/prostanoids can exert in in vitro and in vivo models of airway inflammation, and suggest that inhibiting COX-2 expression to repress airway inflammation may be too blunt an approach; because although it might reduce the unwanted effects of COX-2 activation, it may also negate the positive effects. Evidence suggests that prostanoids produced via COX-2 upregulation show diverse actions (and herein we focus on prostaglandin E2 as a key example); these can be either beneficial or deleterious and their impact on respiratory disease can be dictated by local concentration and specific interaction with individual receptors. We propose that understanding the regulation of COX-2 expression and associated receptor-mediated functional outcomes may reveal number of critical steps amenable to pharmacological intervention. These may prove invaluable in our quest towards future development of novel anti-inflammatory pharmacotherapeutic strategies for the treatment of airway diseases.
Collapse
Affiliation(s)
- N N Rumzhum
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - A J Ammit
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
| |
Collapse
|
26
|
Chhiber N, Kaur T, Singla S. Rottlerin, a polyphenolic compound from the fruits of Mallotus phillipensis (Lam.) Müll.Arg., impedes oxalate/calcium oxalate induced pathways of oxidative stress in male wistar rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:989-97. [PMID: 27444343 DOI: 10.1016/j.phymed.2016.06.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/02/2016] [Accepted: 06/08/2016] [Indexed: 05/20/2023]
Abstract
BACKGROUND Oxalate and/or calcium oxalate, is known to induce free radical production, subsequently leading to renal epithelial injury. Oxidative stress and mitochondrial dysfunction have emerged as new targets for managing oxalate induced renal injury. HYPOTHESIS Plant products and antioxidants have gained tremendous attention in the prevention of lithiatic disease. Rottlerin, a polyphenolic compound from the fruits of Mallotus phillipensis (Lam.) Müll.Arg., has shown free radical scavenging, antioxidant activity and has been reported to interfere in signaling pathways leading to inflammation and apoptosis. In this study, the potential role of rottlerin, in rats exposed to hyperoxaluric environment was explored. METHODS Hyperoxaluria was induced by administering 0.4% ethylene glycol and 1% ammonium chloride in drinking water to male wistar rats for 9 days. Rottlerin was administered intraperitoneally at 1mg/kg/day along with the hyperoxaluric agent. Prophylactic efficacy of rottlerin to diminish hyperoxaluria induced renal dysfunctionality and crystal load was examined along with its effect on free radicals generating pathways in hyperoxaluric rats. RESULTS 0.4% ethylene glycol and 1% ammonium chloride led to induction of hyperoxaluria, oxiadtive stress and mitochondrial damage in rats. Rottlerin treatment reduced NADPH oxidase activity, prevented mitochondrial dysfunction and maintained antioxidant environment. It also refurbished renal functioning, tissue integrity and diminished urinary crystal load in hyperoxaluric rats treated with rottlerin. CONCLUSIONS Thus, the present investigation suggests that rottlerin evidently reduced hyperoxaluric consequences and the probable mechanism of action of this drug could be attributed to its ability to quench free radicals by itself and interrupting signaling pathways involved in pathogenesis of stone formation.
Collapse
Affiliation(s)
- Nirlep Chhiber
- Department of Biochemistry, Panjab University, Chandigarh-160015, India
| | - Tanzeer Kaur
- Department of Biophysics, Panjab University, Chandigarh-160015, India
| | - Surinder Singla
- Department of Biochemistry, Panjab University, Chandigarh-160015, India.
| |
Collapse
|
27
|
Qian Y, Wang X, Li Y, Cao Y, Chen X. Extracellular ATP a New Player in Cancer Metabolism: NSCLC Cells Internalize ATP In Vitro and In Vivo Using Multiple Endocytic Mechanisms. Mol Cancer Res 2016; 14:1087-1096. [PMID: 27578770 DOI: 10.1158/1541-7786.mcr-16-0118] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 08/07/2016] [Accepted: 08/17/2016] [Indexed: 11/16/2022]
Abstract
Intratumoral extracellular ATP concentrations are 1000 times higher than those in normal tissues of the same cell origin. However, whether or not cancer cells use the abundant extracellular ATP was unknown until we recently reported that cancer cells internalize ATP. The internalized ATP was found to substantially increase intracellular ATP concentration and promote cell proliferation and drug resistance in cancer cells. Here, using a nonhydrolyzable fluorescent ATP (NHF-ATP), radioactive and regular ATP, coupled with high and low molecular weight dextrans as endocytosis tracers and fluorescence microscopy and ATP assays, cultured human NSCLC A549 and H1299 cells as well as A549 tumor xenografts were found to internalize extracellular ATP at concentrations within the reported intratumoral extracellular ATP concentration range. In addition to macropinocytosis, both clathrin- and caveolae-mediated endocytosis significantly contribute to the ATP internalization, which led to an approximately 30% (within 45 minutes) or more than 50% (within 4 hours) increase in intracellular ATP levels after ATP incubation. This increase could not be accounted for by either purinergic receptor signaling or increased intracellular ATP synthesis rates in the ATP-treated cancer cells. These new findings significantly deepen our understanding of the Warburg effect by shedding light on how cancer cells in tumors, which are heterogeneous for oxygen and nutrition supplies, take up extracellular ATP and use the internalized ATP to perform multiple previously unrecognized functions of biological importance. They strongly suggest the existence of ATP sharing among cancer and stromal cells in tumors and simultaneously identify multiple new anticancer targets. IMPLICATIONS Extracellular ATP is taken up by human lung cancer cells and tumors via macropinocytosis and other endocytic processes to supplement their extra energy needs for cancer growth, survival, and drug resistance, thus providing novel targets for future cancer therapy. Mol Cancer Res; 14(11); 1087-96. ©2016 AACR.
Collapse
Affiliation(s)
- Yanrong Qian
- The Edison Biotechnology Institute, Ohio University, Athens, Ohio
| | - Xuan Wang
- The Edison Biotechnology Institute, Ohio University, Athens, Ohio.,Department of Biological Sciences, Ohio University, Athens, Ohio.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio
| | - Yunsheng Li
- The Edison Biotechnology Institute, Ohio University, Athens, Ohio
| | - Yanyang Cao
- The Edison Biotechnology Institute, Ohio University, Athens, Ohio.,Department of Biological Sciences, Ohio University, Athens, Ohio.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio
| | - Xiaozhuo Chen
- The Edison Biotechnology Institute, Ohio University, Athens, Ohio. .,Department of Biological Sciences, Ohio University, Athens, Ohio.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, Ohio.,Department of Biomedical Sciences, Ohio University, Athens, Ohio.,Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio.,Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio
| |
Collapse
|
28
|
Zhang GW, Gu TX, Sun XJ, Wang C, Qi X, Wang XB, Li-Ling J. Edaravone promotes activation of resident cardiac stem cells by transplanted mesenchymal stem cells in a rat myocardial infarction model. J Thorac Cardiovasc Surg 2016; 152:570-82. [PMID: 27056755 DOI: 10.1016/j.jtcvs.2016.02.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 02/23/2016] [Accepted: 02/28/2016] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To explore the effect of edaravone on bone marrow mesenchymal stem cells (BMSCs) transplanted to treat acute myocardial infarction (AMI) and the underlying mechanism. METHODS After pretreatment or treatment with edaravone under conditions of deep hypoxia and serum deprivation, the rat BMSCs were evaluated for reactive oxygen species (ROS), Akt pathway, apoptosis, migration, and paracrine function mediating cardiac stem cell (CSC) activation. Edaravone-pretreated BMSCs, control-released edaravone, and BMSCs were respectively transplanted into a rat AMI model. Apoptosis and paracrine functions of the BMSCs, resident CSC activation, and myocardial regeneration and function were measured at various time points. RESULTS Compared with the control and edaravone pretreatment, edaravone treatment showed significantly increased apoptosis inhibition, migration, and cytokine secretion of BMSCs under an in vitro deep hypoxia and serum deprivation condition (P < .05), via inhibiting intracellular accumulation of ROS and prolonging the Akt pathway activation. At 24 hours postoperatively, up-regulated expression of cytokines within the transplanted area, and decreased apoptotic BMSCs, were detected in the BMSC + edaravone group, compared with the BMSCs and edaravone pretreatment BMSC groups (n = 10 for each group, P < .05). Four weeks later, the BMSCs + edaravone group showed more CSCs, CSC-derived cardiomyocytes, new vessels, and myocardial density within the ischemic area, and improved ejection fraction, compared with the other groups (n = 10 in each group, P < .05). CONCLUSIONS Edaravone can protect the BMSCs against hypoxia and activate their potential to activate CSCs via the Akt pathway. The combined treatment can promote angiogenesis, resident CSC-mediated myocardial regeneration, and cardiac function after AMI, providing a new strategy for cell therapy.
Collapse
Affiliation(s)
- Guang-Wei Zhang
- Department of Cardiac Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Tian-Xiang Gu
- Department of Cardiac Surgery, The First Hospital of China Medical University, Shenyang, China.
| | - Xue-Jun Sun
- Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China; Department of Anesthesiology of the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Chunyue Wang
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Cardiovascular Institute, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Xun Qi
- Department of Radiology, The First Hospital of China Medical University, Shenyang, China; Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, The First Hospital of China Medical University, Shenyang, China
| | - Xiao-Bing Wang
- Department of Echocardiography, The First Hospital of China Medical University, Shenyang, China
| | - Jesse Li-Ling
- Institute of Genetic Medicine, School of Life Science, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| |
Collapse
|
29
|
Piao M, Cao H, He N, Yang B, Dong W, Xu M, Yan F, Zhou B, Wang B. Berberine Inhibits Intestinal Polyps Growth in Apc (min/+) Mice via Regulation of Macrophage Polarization. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:5137505. [PMID: 27493671 PMCID: PMC4967463 DOI: 10.1155/2016/5137505] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/13/2016] [Accepted: 05/29/2016] [Indexed: 11/17/2022]
Abstract
Antitumor effect of berberine has been reported in a wide spectrum of cancer, however, the mechanisms of which are not fully understood. The aim of this study was to investigate the hypothesis that berberine suppresses tumorigenesis in the familial adenomatous polyposis (FAP) by regulating the macrophage polarization in Apc (min/+) mouse model. Berberine was given to Apc (min/+) mice for 12 weeks. Primary macrophages were isolated; after berberine treatment, the change in signaling cascade was determined. The total number and size of polyps were reduced remarkably in berberine group, compared with control group. A significant decrease in protein levels of F4/80, mannose receptor (MR), and COX-2 in stroma of intestinal polyps and an increase in the level of iNOS were observed after berberine treatment. The mRNA level of MR and Arg-1 in berberine group was significantly lower than those in IL-10 or IL-4 group, while no significant difference in mRNA levels of iNOS and CXCL10 was observed. The migration and invasiveness assays in vitro showed that berberine could reduce the capability of migration and invasiveness. These findings suggest that berberine attenuates intestinal tumorigenesis by inhibiting the migration and invasion of colorectal tumor cells via regulation of macrophage polarization.
Collapse
Affiliation(s)
- Meiyu Piao
- Department of Gastroenterology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Hailong Cao
- Department of Gastroenterology, General Hospital, Tianjin Medical University, Tianjin, China
| | - NaNa He
- Department of Gastroenterology, The Four Zero One Hospital of the People's Liberation Army, Qingdao, China
| | - Boli Yang
- Department of Digestive Diseases, General Hospital, Jincheng Coal Group, Jincheng, Shanxi, China
| | - Wenxiao Dong
- Department of Gastroenterology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Mengque Xu
- Department of Gastroenterology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Fang Yan
- Department of Gastroenterology, General Hospital, Tianjin Medical University, Tianjin, China
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Bing Zhou
- Department of Gastroenterology, Tanggu Traditional Chinese Medicine Hospital of Tianjin Binhai New Area, No. 90 Hangzhou Road, Tanggu, Binhai New Area, Tianjin 300450, China
| | - Bangmao Wang
- Department of Gastroenterology, General Hospital, Tianjin Medical University, Tianjin, China
- *Bangmao Wang:
| |
Collapse
|
30
|
Zimmermann H. Extracellular ATP and other nucleotides-ubiquitous triggers of intercellular messenger release. Purinergic Signal 2015; 12:25-57. [PMID: 26545760 DOI: 10.1007/s11302-015-9483-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 10/29/2015] [Indexed: 12/21/2022] Open
Abstract
Extracellular nucleotides, and ATP in particular, are cellular signal substances involved in the control of numerous (patho)physiological mechanisms. They provoke nucleotide receptor-mediated mechanisms in select target cells. But nucleotides can considerably expand their range of action. They function as primary messengers in intercellular communication by stimulating the release of other extracellular messenger substances. These in turn activate additional cellular mechanisms through their own receptors. While this applies also to other extracellular messengers, its omnipresence in the vertebrate organism is an outstanding feature of nucleotide signaling. Intercellular messenger substances released by nucleotides include neurotransmitters, hormones, growth factors, a considerable variety of other proteins including enzymes, numerous cytokines, lipid mediators, nitric oxide, and reactive oxygen species. Moreover, nucleotides activate or co-activate growth factor receptors. In the case of hormone release, the initially paracrine or autocrine nucleotide-mediated signal spreads through to the entire organism. The examples highlighted in this commentary suggest that acting as ubiquitous triggers of intercellular messenger release is one of the major functional roles of extracellular nucleotides. While initiation of messenger release by nucleotides has been unraveled in many contexts, it may have been overlooked in others. It can be anticipated that additional nucleotide-driven messenger functions will be uncovered with relevance for both understanding physiology and development of therapy.
Collapse
Affiliation(s)
- Herbert Zimmermann
- Institute of Cell Biology and Neuroscience, Molecular and Cellular Neurobiology, Goethe University, Max-von-Laue-Str. 13, Frankfurt am Main, Germany.
| |
Collapse
|
31
|
Inhibition of NADPH oxidase protects against metastasis of human lung cancer by decreasing microRNA-21. Anticancer Drugs 2015; 26:388-98. [PMID: 25563770 DOI: 10.1097/cad.0000000000000198] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The objective of this study was to detect the effect of NADPH oxidase (NOX) inhibition on metastasis of lung cancer. Primary human lung cancer cells were isolated from surgical tissues using the Cancer Cell Isolation Kit. Invasion was detected using the BD Biocoat Matrigel Invasion Chamber assay. Expressions of microRNA-21 (miR-21), PTEN, MMP9, and p47 were detected by qPCR. Groups of nude mice were challenged with A549 cells with or without DPI and detected for tumor metastasis and survival. NOX inhibition in human lung cancer cells significantly reduced their invasive potential in vitro. NOX inhibition in vivo led to decreased metastasis of human lung cancer and prolonged the survival time of tumor-bearing nude mice. Further, NOX inhibition resulted in decreased expression of miR-21 in human lung cancer cells. Increased expression of miR-21 abrogated the effect of NOX inhibitor on metastasis of human lung cancer in vitro and in vivo. Decreased expression of miR-21 facilitated the effect of NOX inhibitor on metastasis of human lung cancer in vitro and in vivo. Furthermore, increased expression of PTEN and decreased expression of MMP9 were observed in human lung cancer cells in response to NOX inhibition. Finally, close correlations of miR-21 expression levels with NADPH oxidase expression level and differentiation state of tumor cells were observed in lung cancer patients. Inhibition of NADPH oxidase protected against metastasis of human lung cancer cells by decreasing miR-21 expression, which could facilitate the understanding of lung cancer pathogenesis and provided clues for the development of novel therapeutics for lung cancer patients.
Collapse
|
32
|
Díaz-Vegas A, Campos CA, Contreras-Ferrat A, Casas M, Buvinic S, Jaimovich E, Espinosa A. ROS Production via P2Y1-PKC-NOX2 Is Triggered by Extracellular ATP after Electrical Stimulation of Skeletal Muscle Cells. PLoS One 2015; 10:e0129882. [PMID: 26053483 PMCID: PMC4460042 DOI: 10.1371/journal.pone.0129882] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 05/15/2015] [Indexed: 01/15/2023] Open
Abstract
During exercise, skeletal muscle produces reactive oxygen species (ROS) via NADPH oxidase (NOX2) while inducing cellular adaptations associated with contractile activity. The signals involved in this mechanism are still a matter of study. ATP is released from skeletal muscle during electrical stimulation and can autocrinely signal through purinergic receptors; we searched for an influence of this signal in ROS production. The aim of this work was to characterize ROS production induced by electrical stimulation and extracellular ATP. ROS production was measured using two alternative probes; chloromethyl-2,7- dichlorodihydrofluorescein diacetate or electroporation to express the hydrogen peroxide-sensitive protein Hyper. Electrical stimulation (ES) triggered a transient ROS increase in muscle fibers which was mimicked by extracellular ATP and was prevented by both carbenoxolone and suramin; antagonists of pannexin channel and purinergic receptors respectively. In addition, transient ROS increase was prevented by apyrase, an ecto-nucleotidase. MRS2365, a P2Y1 receptor agonist, induced a large signal while UTPyS (P2Y2 agonist) elicited a much smaller signal, similar to the one seen when using ATP plus MRS2179, an antagonist of P2Y1. Protein kinase C (PKC) inhibitors also blocked ES-induced ROS production. Our results indicate that physiological levels of electrical stimulation induce ROS production in skeletal muscle cells through release of extracellular ATP and activation of P2Y1 receptors. Use of selective NOX2 and PKC inhibitors suggests that ROS production induced by ES or extracellular ATP is mediated by NOX2 activated by PKC.
Collapse
Affiliation(s)
- Alexis Díaz-Vegas
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Centro de Estudios Moleculares de la Célula, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Cristian A. Campos
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Ariel Contreras-Ferrat
- Centro de Estudios Moleculares de la Célula, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mariana Casas
- Centro de Estudios Moleculares de la Célula, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Sonja Buvinic
- Instituto de Investigación en Ciencias Odontológicas, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Enrique Jaimovich
- Centro de Estudios Moleculares de la Célula, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Alejandra Espinosa
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Centro de Estudios Moleculares de la Célula, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- * E-mail:
| |
Collapse
|
33
|
Liu X, Pei C, Yan S, Liu G, Liu G, Chen W, Cui Y, Liu Y. NADPH oxidase 1-dependent ROS is crucial for TLR4 signaling to promote tumor metastasis of non-small cell lung cancer. Tumour Biol 2015; 36:1493-502. [PMID: 25592377 DOI: 10.1007/s13277-014-2639-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 08/04/2014] [Indexed: 01/03/2023] Open
Abstract
Recent evidence demonstrated an enhanced metastasis of non-small cell lung cancer (NSCLC) cells induced by lipopolysaccharide (LPS) stimulation, which reflected an important role of inflammation in tumor progression. However, the underlying mechanisms still remain unclear. Here, we evaluated the potential role of reactive oxygen species (ROS) in Toll-like receptor 4 (TLR4) signaling enhanced NSCLC metastasis. NSCLC cells were isolated from clinical surgical tissues. We found that LPS stimulation of NSCLC cells facilitates their metastasis that was accompanied by increased ROS production and could be abrogated by ROS inhibition. NADPH oxidase was essential for TLR4 signaling-enhanced NSCLC metastasis. Elevated NADPH oxidase 1 (NOX1) expression by LPS stimulation was observed. Blockade of NOX1 with ML171 alleviated enhanced NSCLC metastasis by TLR4 signaling. Enforced NOX1 expression promoted TLR4 signaling-enhanced NSCLC metastasis, while decreased NOX1 expression inhibited TLR4 signaling-enhanced NSCLC metastasis. Further, NOX1 could regulate the expression of CXCR4 and matrix metallopeptidase 9 (MMP9) in NSCLC cells. NOX1 expression in tumor tissues was correlated with TLR4 expression and clinical stages in NSCLC patients. Finally, inhibition of NOX1/ROS prevented enhanced lung tumor burdens of NSCLC by LPS-induced acute lung infection. Our findings demonstrated a crucial role of NOX1-dependent ROS for TLR4 signaling to enhance the metastasis of NSCLC, which could further the understanding of NSCLC pathogenesis and helpful for developing novel therapeutics for NSCLC.
Collapse
Affiliation(s)
- Xiyu Liu
- Department of Chest Surgery, The First Bethune Hospital, Jilin University, 71 Xinminda Street, Changchun City, 130021, Jilin, China
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Hsu CK, Lee IT, Lin CC, Hsiao LD, Yang CM. Sphingosine-1-Phosphate Mediates COX-2 Expression and PGE2/IL-6 Secretion via c-Src-Dependent AP-1 Activation. J Cell Physiol 2014; 230:702-15. [DOI: 10.1002/jcp.24795] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 09/05/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Chih-Kai Hsu
- Department of Physiology and Pharmacology and Health Aging Research Center; College of Medicine; Chang Gung University; Kwei-San Tao-Yuan Taiwan
| | - I-Ta Lee
- Department of Physiology and Pharmacology and Health Aging Research Center; College of Medicine; Chang Gung University; Kwei-San Tao-Yuan Taiwan
| | - Chih-Chung Lin
- Department of Anesthetics; Chang Gung Memorial Hospital at Lin-Kou and College of Medicine; Chang Gung University; Kwei-San Tao-Yuan Taiwan
| | - Li-Der Hsiao
- Department of Anesthetics; Chang Gung Memorial Hospital at Lin-Kou and College of Medicine; Chang Gung University; Kwei-San Tao-Yuan Taiwan
| | - Chuen-Mao Yang
- Department of Physiology and Pharmacology and Health Aging Research Center; College of Medicine; Chang Gung University; Kwei-San Tao-Yuan Taiwan
| |
Collapse
|
35
|
Diao W, Jin F, Wang B, Zhang CY, Chen J, Zen K, Li L. The protective role of myeloid-derived suppressor cells in concanavalin A-induced hepatic injury. Protein Cell 2014; 5:714-24. [PMID: 24981055 PMCID: PMC4145084 DOI: 10.1007/s13238-014-0069-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 04/14/2014] [Indexed: 12/17/2022] Open
Abstract
The mechanism underlying T cell-mediated fulminant hepatitis is not fully understood. In this study, we investigated whether myeloid derived suppressor cells (MDSCs) could prevent the concanavalin A (ConA)-induced hepatitis through suppressing T cell proliferation. We observed an increase in the frequencies of MDSCs in mouse spleen and liver at early stage of ConA treatment, implicating that the MDSCs might be involved in the initial resistance of mice against ConA-mediated inflammation. Subpopulation analysis showed that the MDSCs in liver of ConA-induced mice were mainly granulocytic MDSCs. Adoptive transfer of the bone marrow-derived MDSCs into ConA-treated mice showed that the MDSCs migrated into the liver and spleen where they suppressed T cell proliferation through ROS pathway. In addition, the frequencies of MDSCs in mice were also significantly increased by the treatment with immune suppressor glucocorticoids. Transfer of MDSCs into the regulatory T cell (Treg)-depleted mice showed that the protective effect of MDSCs on ConA-induced hepatitis is Treg-independent. In conclusion, our results demonstrate that MDSCs possess a direct protective role in T cell-mediated hepatitis, and increasing the frequency of MDSCs by either adoptive transfer or glucocorticoid treatment represents a potential cell-based therapeutic strategy for the acute inflammatory disease.
Collapse
Affiliation(s)
- Wenli Diao
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093 China
| | - Fangfang Jin
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093 China
| | - Bing Wang
- People’s Liberation Army 404 Hospital, Weihai, 264200 China
| | - Chen-Yu Zhang
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093 China
| | - Jiangning Chen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093 China
| | - Ke Zen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093 China
| | - Limin Li
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210093 China
| |
Collapse
|
36
|
Jin X, Chen M, Song L, Li H, Li Z. The evaluation of p,p'-DDT exposure on cell adhesion of hepatocellular carcinoma. Toxicology 2014; 322:99-108. [PMID: 24820114 DOI: 10.1016/j.tox.2014.05.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 04/22/2014] [Accepted: 05/04/2014] [Indexed: 10/25/2022]
Abstract
Many studies have found a positive association between the progression of hepatocellular carcinoma and DDT exposure. These studies mainly focus on the effect of DDT exposure on cell proliferation and epithelial to mesenchymal transition (EMT) promotion. However, the influence of DDT on cell adhesion of hepatocellular carcinoma remains to be unclear. The aim of our study was to determine the effect of p,p'-DDT on cell adhesion of hepatocellular carcinoma in vitro and in vivo. The data showed that p,p'-DDT, exposing HepG2 cells for 6 days, decreased cell-cell adhesion and elevated cell-matrix adhesion. Strikingly, p,p'-DDT increased reactive oxygen species (ROS) content, and this was accompanied by the activation of JAK/STAT3 pathway. Moreover, ROS inhibitor supplement reversed these effects significantly. However, the addition of ER inhibitor, ICI, had no effect on the p,p'-DDT-induced effects. p,p'-DDT altered the mRNA levels of related adhesion molecules, including inhibition of E-cadherin and promotion of N-cadherin along with CD29. Interestingly, the p,p'-DDT-altered adhesion molecules could be reversed with JAK inhibitor or STAT3 inhibitor. Likewise, p,p'-DDT stimulated the JAK/STAT3 pathway in nude mice, as well as altered the mRNA levels of E-cadherin, N-cadherin, and CD29. Taken together, these results indicate that p,p'-DDT profoundly promotes the adhesion process by decreasing cell-cell adhesion and inducing cell-matrix adhesion via the ROS-mediated JAK/STAT3 pathway. All these events account for the carcinogenic potential of p,p'-DDT in liver.
Collapse
Affiliation(s)
- Xiaoting Jin
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Meilan Chen
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Li Song
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Hanqing Li
- College of Life Science, Shanxi University, Taiyuan 030006, China
| | - Zhuoyu Li
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China; College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| |
Collapse
|
37
|
Hsieh YS, Hsu CY. Oxidative stress and anti-oxidant enzyme activities in the trophocytes and fat cells of queen honeybees (Apis mellifera). Rejuvenation Res 2014; 16:295-303. [PMID: 23738955 DOI: 10.1089/rej.2013.1420] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Trophocytes and fat cells of queen honeybees have been used for delayed cellular senescence studies, but their oxidative stress and anti-oxidant enzyme activities with advancing age are unknown. In this study, we assayed reactive oxygen species (ROS) and anti-oxidant enzymes in the trophocytes and fat cells of young and old queens. Young queens had lower ROS levels, lower superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activities, and higher thioredoxin reductase (TR) activity compared to old queens. These results show that oxidative stress and anti-oxidant enzyme activities in trophocytes and fat cells increase with advancing age in queens and suggest that an increase in oxidative stress and a consequent increase in stress defense mechanisms are associated with the longevity of queen honeybees.
Collapse
Affiliation(s)
- Yu-Shan Hsieh
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | | |
Collapse
|
38
|
Yang CM, Lee IT, Chi PL, Cheng SE, Hsiao LD, Hsu CK. TNF-α induces cytosolic phospholipase A2 expression via Jak2/PDGFR-dependent Elk-1/p300 activation in human lung epithelial cells. Am J Physiol Lung Cell Mol Physiol 2014; 306:L543-51. [DOI: 10.1152/ajplung.00320.2013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Cytosolic phospholipase A2 (cPLA2) plays a pivotal role in mediating agonist-induced arachidonic acid release for prostaglandin (PG) synthesis during inflammation triggered by tumor necrosis factor-α (TNF-α). However, the mechanisms underlying TNF-α-induced cPLA2 expression in human lung epithelial cells (HPAEpiCs) were not completely understood. Here, we demonstrated that TNF-α induced cPLA2 mRNA and protein expression, promoter activity, and PGE2 secretion in HPAEpiCs. These responses induced by TNF-α were inhibited by pretreatment with the inhibitor of Jak2 (AG490), platelet-derived growth factor receptor (PDGFR) (AG1296), phosphoinositide 3 kinase (PI3K) (LY294002), or MEK1/2 (PD98059) and transfection with siRNA of Jak2, PDGFR, Akt, or p42. We showed that TNF-α markedly stimulated Jak2, PDGFR, Akt, and p42/p44 MAPK phosphorylation, which were attenuated by their respective inhibitors. Moreover, TNF-α stimulated Akt activation via a Jak2/PDGFR pathway in HPAEpiCs. In addition, TNF-α-induced p42/p44 MAPK phosphorylation was reduced by AG1296 or LY294002. On the other hand, TNF-α could induce Akt and p42/p44 MAPK translocation from the cytosol into the nucleus, which was inhibited by AG490, AG1296, or LY294002. Finally, we showed that TNF-α stimulated Elk-1 phosphorylation, which was reduced by LY294002 or PD98059. We also observed that TNF-α time dependently induced p300/Elk-1 and p300/Akt complex formation in HPAEpiCs, which was reduced by AG490, AG1296, or LY294002. The activity of cPLA2 protein upregulated by TNF-α was reflected on the PGE2 release, which was reduced by AG490, AG1296, LY294002 , or PD98059. Taken together, these results demonstrated that TNF-α-induced cPLA2 expression and PGE2 release were mediated through a Jak2/PDGFR/PI3K/Akt/p42/p44 MAPK/Elk-1 pathway in HPAEpiCs.
Collapse
Affiliation(s)
- Chuen-Mao Yang
- Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine and
| | - I-Ta Lee
- Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine and
| | - Pei-Ling Chi
- Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine and
| | - Shin-Ei Cheng
- Department of Anesthetics, Chang Gung Memorial Hospital at Lin-Kou and College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan
| | - Li-Der Hsiao
- Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine and
| | - Chih-Kai Hsu
- Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine and
| |
Collapse
|
39
|
Oxidative stress decreases in the trophocytes and fat cells of worker honeybees during aging. Biogerontology 2013; 15:129-37. [DOI: 10.1007/s10522-013-9485-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 11/28/2013] [Indexed: 01/14/2023]
|
40
|
Won SY, Kim SR, Maeng S, Jin BK. Interleukin-13/Interleukin-4-induced oxidative stress contributes to death of prothrombinkringle-2 (pKr-2)-activated microglia. J Neuroimmunol 2013; 265:36-42. [PMID: 24090651 DOI: 10.1016/j.jneuroim.2013.09.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 09/12/2013] [Accepted: 09/14/2013] [Indexed: 01/28/2023]
Abstract
The present study examined whether Interleukin-13 (IL-13) or IL-4, an anti-inflammatory cytokine, could induce cell death of activated microglia by prothrombin kringle-2 (pKr-2) which is a domain of prothrombin distinct from thrombin. Microglia cell death was detected at eight days after co-treatment of pKr-2 with IL-13/IL-4 in vitro. This cell death was assessed by live assay, dead assay, TUNEL and MTT assay. In parallel, reactive oxygen species (ROS) production was evident as assessed by superoxide assay, WST-1 and analyzing DCF in combination of pKr-2 and IL-13 or IL-4 treated microglia. The IL-13/IL-4-enhanced ROS production and cell death in pKr-2 activated microglia was partially inhibited by an NADPH oxidase inhibitor, apocynin and/or by several antioxidants. Moreover, Western blot analysis showed a significant increase in cyclooxygenase-2 (COX-2) expression in combination of pKr-2 and IL-13 or IL-4 treated microglia, which was partially inhibited by apocynin and an antioxidant, trolox. Additional studies demonstrated that microglia cell death was reversed by treatment with COX-2 inhibitor, NS398. Our data strongly suggest that oxidative stress and COX-2 activation through NADPH oxidase may contribute to IL-13/IL-4 induced cell death of pKr-2 activated microglia.
Collapse
Affiliation(s)
- So-Yoon Won
- Department of Biochemistry and Medical Research Center, Chungbuk National University College of Medicine, Cheongju 361-763, South Korea
| | | | | | | |
Collapse
|