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Dilawari R, Chaubey GK, Modanwal R, Dhiman A, Talukdar S, Kumar A, Raje CI, Raje M. Glyceraldehyde-3-Phosphate Dehydrogenase Binds with Spike Protein and Inhibits the Entry of SARS-CoV-2 into Host Cells. J Innate Immun 2024; 16:133-142. [PMID: 38325356 PMCID: PMC10911789 DOI: 10.1159/000535634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 11/29/2023] [Indexed: 02/09/2024] Open
Abstract
INTRODUCTION Coronavirus disease 2019 caused by coronavirus-2 (SARS-CoV-2) has emerged as an aggressive viral pandemic. Health care providers confront a challenging task for rapid development of effective strategies to combat this and its long-term after effects. Virus entry into host cells involves interaction between receptor-binding domain (RBD) of spike (S) protein S1 subunit with angiotensin converting enzyme present on host cells. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a moonlighting enzyme involved in cellular glycolytic energy metabolism and micronutrient homeostasis. It is deployed in various cellular compartments and the extra cellular milieu. Though it is known to moonlight as a component of mammalian innate immune defense machinery, till date its role in viral restriction remains unknown. METHOD Recombinant S protein, the RBD, and human GAPDH protein were used for solid phase binding assays and biolayer interferometry. Pseudovirus particles expressing four different strain variants of S protein all harboring ZsGreen gene as marker of infection were used for flow cytometry-based infectivity assays. RESULTS Pseudovirus entry into target cells in culture was significantly inhibited by addition of human GAPDH into the extracellular medium. Binding assays demonstrated that human GAPDH binds to S protein and RBD of SARS-CoV-2 with nanomolar affinity. CONCLUSIONS Our investigations suggest that this interaction of GAPDH interferes in the viral docking with hACE2 receptors, thereby affecting viral ingress into mammalian cells.
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Affiliation(s)
- Rahul Dilawari
- Institute of Microbial Technology, CSIR, Chandigarh, India
| | | | | | - Asmita Dhiman
- Institute of Microbial Technology, CSIR, Chandigarh, India
| | | | - Ajay Kumar
- National Institute of Pharmaceutical Education and Research, Sahibzada Ajit Singh Nagar, India
| | - Chaaya Iyengar Raje
- National Institute of Pharmaceutical Education and Research, Sahibzada Ajit Singh Nagar, India
| | - Manoj Raje
- Institute of Microbial Technology, CSIR, Chandigarh, India
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Gill JG, Leef SN, Ramesh V, Martin-Sandoval MS, Rao AD, West L, Muh S, Gu W, Zhao Z, Hosler GA, Vandergriff TW, Durham AB, Mathews TP, Aurora AB. A short isoform of spermatogenic enzyme GAPDHS functions as a metabolic switch and limits metastasis in melanoma. Cancer Res 2022; 82:1251-1266. [PMID: 35149585 DOI: 10.1158/0008-5472.can-21-2062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 12/21/2021] [Accepted: 02/07/2022] [Indexed: 11/16/2022]
Abstract
Despite being the leading cause of cancer deaths, metastasis remains a poorly understood process. To identify novel regulators of metastasis in melanoma, we performed a large-scale RNA-sequencing screen of 48 samples from patient-derived xenograft (PDX) subcutaneous melanomas and their associated metastases. In comparison to primary tumors, expression of glycolytic genes was frequently decreased in metastases while expression of some TCA cycle genes was increased in metastases. Consistent with these transcriptional changes, melanoma metastases underwent a metabolic switch characterized by decreased levels of glycolytic metabolites and increased abundance of TCA cycle metabolites. A short isoform of glyceraldehye-3-phosphate dehydrogenase, spermatogenic (GAPDHS) lacking the N-terminal domain suppressed metastasis and regulated this metabolic switch. GAPDHS was downregulated in metastatic nodules from PDX models as well as in human patients. Overexpression of GAPDHS was sufficient to block melanoma metastasis, while its inhibition promoted metastasis, decreased glycolysis, and increased levels of certain TCA cycle metabolites and their derivatives including citrate, fumarate, malate, and aspartate. Isotope tracing studies indicated that GADPHS mediates this shift through changes in pyruvate carboxylase activity and aspartate synthesis, both metabolic pathways critical for cancer survival and metastasis. Together these data identify a short isoform of GAPDHS that limits melanoma metastasis and regulates central carbon metabolism.
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Affiliation(s)
- Jennifer G Gill
- University of Texas Southwestern Medical Center, Department of Dermatology, Dallas, Texas
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Samantha N Leef
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Vijayashree Ramesh
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Misty S Martin-Sandoval
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Aparna D Rao
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
- Molecular Oncology Laboratory, Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Lindsey West
- University of Texas Southwestern Medical Center, Department of Dermatology, Dallas, Texas
| | - Sarah Muh
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Wen Gu
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Zhiyu Zhao
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Gregory A Hosler
- University of Texas Southwestern Medical Center, Department of Dermatology, Dallas, Texas
- ProPath Dermatopathology, Dallas, Texas
| | - Travis W Vandergriff
- University of Texas Southwestern Medical Center, Department of Dermatology, Dallas, Texas
| | - Alison B Durham
- University of Michigan, Department of Dermatology, Ann Arbor, Michigan
| | - Thomas P Mathews
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Arin B Aurora
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, Texas
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Xu G, Li J, Zhang D, Su T, Li X, Cui S. HSP70 inhibits pig pituitary gonadotrophin synthesis and secretion by regulating the corticotropin-releasing hormone signaling pathway and targeting SMAD3. Domest Anim Endocrinol 2021; 74:106533. [PMID: 32992141 DOI: 10.1016/j.domaniend.2020.106533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 11/23/2022]
Abstract
High levels or long periods of stress have been shown to negatively impact cell homeostasis, including with respect to abnormalities in domestic animal reproduction, which are typically activated through the hypothalamus-pituitary-adrenal axis, in which corticotropin-releasing hormone (CRH) and heat shock protein 70 (HSP70) are involved. In addition, CRH has been reported to inhibit pituitary gonadotrophin synthesis, and HSP70 is expressed in the pituitary gland. The aim of this study was to determine whether HSP70 was involved in regulating gonadotrophin synthesis and secretion by mediating the CRH pathway in the porcine pituitary gland. Our results showed that HSP70 was highly expressed in the porcine pituitary gland, with over 90% of gonadotrophic cells testing HSP70 positive. The results of functional studies demonstrated that the HSP70 inducer decreased FSH and LH levels in cultured porcine primary pituitary cells, whereas an HSP70 inhibitor blocked the negative effect of CRH on gonadotrophin synthesis and secretion. Furthermore, our results demonstrated that HSP70 inhibited gonadotrophin synthesis and secretion by blocking GnRH-induced SMAD3 phosphorylation, which acts as the targeting molecule of HSP70, while CRH upregulated HSP70 expression through the PKC and ERK pathways. Collectively, these data demonstrate that HSP70 inhibits pituitary gonadotrophin synthesis and secretion by regulating the CRH signaling pathway and inhibiting SMAD3 phosphorylation, which are important for our understanding the mechanisms of the stress affects domestic animal reproductive functions.
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Affiliation(s)
- G Xu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - J Li
- Department of Reproductive Medicine and Genetics, The Seventh Medical Center of PLA General Hospital, Beijing 100700, China
| | - D Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China
| | - T Su
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - X Li
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - S Cui
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009 Jiangsu, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 Jiangsu, China.
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Fan J, Zhang Z, Long C, He B, Hu Z, Jiang C, Zeng B. Identification and functional characterization of glycerol dehydrogenase reveal the role in kojic acid synthesis in Aspergillus oryzae. World J Microbiol Biotechnol 2020; 36:136. [PMID: 32783085 DOI: 10.1007/s11274-020-02912-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/06/2020] [Indexed: 02/02/2023]
Abstract
Glycerol dehydrogenase has been identified and characterized functionally in many species. However, little is known about glycerol dehydrogenase genes and their functions in Aspergillus oryzae. Here, a total of 45 glycerol dehydrogenase genes in Aspergillus oryzae were identified and renamed from AoGld1 to AoGld45 according to their chromosome distribution. They were classified into three groups based on phylogenetic analysis. Synteny analysis revealed that thirteen AoGld genes are conserved among Aspergillus species. Promoter analysis displayed that AoGld3 and AoGld13 harbored multiple binding elements of GATA-type transcription factors and zinc-finger protein msnA that were involved in nitrogen and kojic acid metabolism, respectively. Moreover, the AoGld3 deletion strain Δgld3 was generated by the CRISPR/Cas9 system, which had no visible growth defects compared with the control wild-type strain under the control and osmotic stress treatments. However, disruption of AoGld3 led to the inhibition of kojic acid production, and the expression of kojA, kojR was down-regulated in the Δgld3 strain. Furthermore, when kojA or kojR was overexpressed in the Δgld3 strain, the yield of kojic acid was restored, suggesting that AoGld3 is involved in kojic acid production through affecting the expression of kojR and kojA. Taken together, these findings provide new insights into our understanding of glycerol dehydrogenase and establish foundation for further study of their roles in Aspergillus oryzae.
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Affiliation(s)
- Junxia Fan
- Jiangxi Key Laboratory of Bioprocess Engineering and Co-Innovation Center for In-Vitro Diagnostic Reagents and Devices of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Zhe Zhang
- Jiangxi Key Laboratory of Bioprocess Engineering and Co-Innovation Center for In-Vitro Diagnostic Reagents and Devices of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China.
| | - Chuannan Long
- Jiangxi Key Laboratory of Bioprocess Engineering and Co-Innovation Center for In-Vitro Diagnostic Reagents and Devices of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Bin He
- Jiangxi Key Laboratory of Bioprocess Engineering and Co-Innovation Center for In-Vitro Diagnostic Reagents and Devices of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Zhihong Hu
- Jiangxi Key Laboratory of Bioprocess Engineering and Co-Innovation Center for In-Vitro Diagnostic Reagents and Devices of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Chunmiao Jiang
- Jiangxi Key Laboratory of Bioprocess Engineering and Co-Innovation Center for In-Vitro Diagnostic Reagents and Devices of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Bin Zeng
- Jiangxi Key Laboratory of Bioprocess Engineering and Co-Innovation Center for In-Vitro Diagnostic Reagents and Devices of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China.
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Abstract
It is thought that the major factor responsible for cell damage is reactive oxygen species (ROS), but our recent studies have shown that acrolein (CH2=CH-CHO) produced from spermine and spermidine is more toxic than ROS. Thus, (1) the mechanism of acrolein production during brain stroke, (2) one of the mechanisms of acrolein toxicity, and (3) the role of glutathione in acrolein detoxification are described in this chapter.
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Affiliation(s)
- Kazuei Igarashi
- Amine Pharma Research Institute, Innovation Plaza at Chiba University, 1-8-15 Inohana, Chuo-ku, Chiba, 260-0856, Japan.
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan.
| | - Takeshi Uemura
- Amine Pharma Research Institute, Innovation Plaza at Chiba University, 1-8-15 Inohana, Chuo-ku, Chiba, 260-0856, Japan
| | - Keiko Kashiwagi
- Faculty of Pharmacy, Chiba Institute of Science, 15-8 Shiomi-cho, Choshi, Chiba, 288-0025, Japan
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Umezawa T, Kato A, Ogoshi M, Ookata K, Munakata K, Yamamoto Y, Islam Z, Doi H, Romero MF, Hirose S. O2-filled swimbladder employs monocarboxylate transporters for the generation of O2 by lactate-induced root effect hemoglobin. PLoS One 2012; 7:e34579. [PMID: 22496829 PMCID: PMC3319611 DOI: 10.1371/journal.pone.0034579] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Accepted: 03/07/2012] [Indexed: 11/18/2022] Open
Abstract
The swimbladder volume is regulated by O2 transfer between the luminal space and the blood In the swimbladder, lactic acid generation by anaerobic glycolysis in the gas gland epithelial cells and its recycling through the rete mirabile bundles of countercurrent capillaries are essential for local blood acidification and oxygen liberation from hemoglobin by the “Root effect.” While O2 generation is critical for fish flotation, the molecular mechanism of the secretion and recycling of lactic acid in this critical process is not clear. To clarify molecules that are involved in the blood acidification and visualize the route of lactic acid movement, we analyzed the expression of 17 members of the H+/monocarboxylate transporter (MCT) family in the fugu genome and found that only MCT1b and MCT4b are highly expressed in the fugu swimbladder. Electrophysiological analyses demonstrated that MCT1b is a high-affinity lactate transporter whereas MCT4b is a low-affinity/high-conductance lactate transporter. Immunohistochemistry demonstrated that (i) MCT4b expresses in gas gland cells together with the glycolytic enzyme GAPDH at high level and mediate lactic acid secretion by gas gland cells, and (ii) MCT1b expresses in arterial, but not venous, capillary endothelial cells in rete mirabile and mediates recycling of lactic acid in the rete mirabile by solute-specific transcellular transport. These results clarified the mechanism of the blood acidification in the swimbladder by spatially organized two lactic acid transporters MCT4b and MCT1b.
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Affiliation(s)
- Takahiro Umezawa
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
| | - Akira Kato
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
- * E-mail:
| | - Maho Ogoshi
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
- Ushimado Marine Laboratory, Okayama University, Shimonoseki Marine Science Museum, Setouchi, Japan
| | - Kayoko Ookata
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
| | - Keijiro Munakata
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
| | - Yoko Yamamoto
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
| | - Zinia Islam
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
| | - Hiroyuki Doi
- Shimonoseki Academy of Marine Science, Shimonoseki, Japan
| | - Michael F. Romero
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
| | - Shigehisa Hirose
- Department of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan
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Kim S, Shah K. Dissecting yeast Hog1 MAP kinase pathway using a chemical genetic approach. FEBS Lett 2007; 581:1209-16. [PMID: 17346711 DOI: 10.1016/j.febslet.2007.02.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Revised: 02/09/2007] [Accepted: 02/16/2007] [Indexed: 12/20/2022]
Abstract
Using a chemical genetic approach, we identified four novel physiological substrates of Hog1 kinase (Krs1, Tdh3, Hsp26, and Shm2). These substrates suggest plausible mechanisms for actin reorganization, cell cycle arrest and regulation of protein synthesis observed upon osmotic stress. We further show that the human homolog of Shm2 (SHMT1) is a novel physiological substrate of p38 MAP kinase in vitro and in vivo. Down-regulation of its enzymatic activity was observed following p38-mediated phosphorylation revealing a potential cancer-modulating property of p38 MAP kinase. This screen has uncovered several novel Hog1 substrates that provide new avenues for investigation into the mechanism of osmoadaptation by this kinase.
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Affiliation(s)
- Sungjoon Kim
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, USA
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