1
|
Kuramochi T, Yamashita Y, Arai K, Kanemura S, Muraoka T, Okumura M. Boosting the enzymatic activity of CxxC motif-containing PDI family members. Chem Commun (Camb) 2024; 60:6134-6137. [PMID: 38829522 DOI: 10.1039/d4cc01712a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Compounds harboring high acidity and oxidizability of thiol groups permit tuning the redox equilibrium constants of CxxC sites of members of the protein disulphide isomerase (PDI) family and thus can be used to accelerate folding processes and increase the production of native proteins by minimal loading in comparison to glutathione.
Collapse
Affiliation(s)
- Tsubura Kuramochi
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8578, Japan.
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| | - Yukino Yamashita
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
| | - Kenta Arai
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
- Institute of Advanced Biosciences, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Shingo Kanemura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8578, Japan.
| | - Takahiro Muraoka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
- Kanagawa Institute of Industrial Science and Technology, 3-2-1 Sakato, Takatsu-ku, Kawasaki, Kanagawa 213-0012, Japan
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8578, Japan.
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| |
Collapse
|
2
|
Pierre AS, Gavriel N, Guilbard M, Ogier-Denis E, Chevet E, Delom F, Igbaria A. Modulation of Protein Disulfide Isomerase Functions by Localization: The Example of the Anterior Gradient Family. Antioxid Redox Signal 2024. [PMID: 38411504 DOI: 10.1089/ars.2024.0561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Significance: Oxidative folding within the endoplasmic reticulum (ER) introduces disulfide bonds into nascent polypeptides, ensuring proteins' stability and proper functioning. Consequently, this process is critical for maintaining proteome integrity and overall health. The productive folding of thousands of secretory proteins requires stringent quality control measures, such as the unfolded protein response (UPR) and ER-Associated Degradation (ERAD), which contribute significantly to maintaining ER homeostasis. ER-localized protein disulfide isomerases (PDIs) play an essential role in each of these processes, thereby contributing to various aspects of ER homeostasis, including maintaining redox balance, proper protein folding, and signaling from the ER to the nucleus. Recent Advances: Over the years, there have been increasing reports of the (re)localization of PDI family members and other ER-localized proteins to various compartments. A prime example is the anterior gradient (AGR) family of PDI proteins, which have been reported to relocate to the cytosol or the extracellular environment, acquiring gain of functions that intersect with various cellular signaling pathways. Critical Issues: Here, we summarize the functions of PDIs and their gain or loss of functions in non-ER locations. We will focus on the activity, localization, and function of the AGR proteins: AGR1, AGR2, and AGR3. Future Directions: Targeting PDIs in general and AGRs in particular is a promising strategy in different human diseases. Thus, there is a need for innovative strategies and tools aimed at targeting PDIs; those strategies should integrate the specific localization and newly acquired functions of these PDIs rather than solely focusing on their canonical roles.
Collapse
Affiliation(s)
- Arvin S Pierre
- INSERM U1242, University of Rennes, Rennes, France
- Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Noa Gavriel
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Marianne Guilbard
- ARTiSt Group, Univ. Bordeaux, INSERM U1312, Institut Bergonié, Bordeaux, France
- Thabor Therapeutics, Paris, France
| | - Eric Ogier-Denis
- INSERM U1242, University of Rennes, Rennes, France
- Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Eric Chevet
- INSERM U1242, University of Rennes, Rennes, France
- Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Frederic Delom
- ARTiSt Group, Univ. Bordeaux, INSERM U1312, Institut Bergonié, Bordeaux, France
| | - Aeid Igbaria
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| |
Collapse
|
3
|
Jiao M, Zhang Y, Song X, Xu B. The role and mechanism of TXNDC5 in disease progression. Front Immunol 2024; 15:1354952. [PMID: 38629066 PMCID: PMC11019510 DOI: 10.3389/fimmu.2024.1354952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/19/2024] [Indexed: 04/19/2024] Open
Abstract
Thioredoxin domain containing protein-5 (TXNDC5), also known as endothelial protein-disulfide isomerase (Endo-PDI), is confined to the endoplasmic reticulum through the structural endoplasmic reticulum retention signal (KDEL), is a member of the PDI protein family and is highly expressed in the hypoxic state. TXNDC5 can regulate the rate of disulfide bond formation, isomerization and degradation of target proteins through its function as a protein disulfide isomerase (PDI), thereby altering protein conformation, activity and improving protein stability. Several studies have shown that there is a significant correlation between TXNDC5 gene polymorphisms and genetic susceptibility to inflammatory diseases such as rheumatoid, fibrosis and tumors. In this paper, we detail the expression characteristics of TXNDC5 in a variety of diseases, summarize the mechanisms by which TXNDC5 promotes malignant disease progression, and summarize potential therapeutic strategies to target TXNDC5 for disease treatment.
Collapse
Affiliation(s)
- Mingxia Jiao
- Department of Urology, The First Affiliated Hospital of Shandong First Medical University & Shandong Province Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Organ Transplantation and Nephrosis, Shandong Institute of Nephrology, Jinan, Shandong, China
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Yeyong Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, Shandong, China
| | - Xie Song
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Bing Xu
- Department of Urology, The First Affiliated Hospital of Shandong First Medical University & Shandong Province Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Organ Transplantation and Nephrosis, Shandong Institute of Nephrology, Jinan, Shandong, China
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| |
Collapse
|
4
|
Essex DW, Wang L. Recent advances in vascular thiol isomerases and redox systems in platelet function and thrombosis. J Thromb Haemost 2024:S1538-7836(24)00166-1. [PMID: 38518897 DOI: 10.1016/j.jtha.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/24/2024]
Abstract
There have been substantial advances in vascular protein disulfide isomerases (PDIs) in platelet function and thrombosis in recent years. There are 4 known prothrombotic thiol isomerases; PDI, endoplasmic reticulum protein (ERp)57, ERp72, and ERp46, and 1 antithrombotic PDI; transmembrane protein 1. A sixth PDI, ERp5, may exhibit either prothrombotic or antithrombotic properties in platelets. Studies on ERp46 in platelet function and thrombosis provide insight into the mechanisms by which these enzymes function. ERp46-catalyzed disulfide cleavage in the αIIbβ3 platelet integrin occurs prior to PDI-catalyzed events to maximally support platelet aggregation. The transmembrane PDI transmembrane protein 1 counterbalances the effect of ERp46 by inhibiting activation of αIIbβ3. Recent work on the prototypic PDI found that oxidized PDI supports platelet aggregation. The a' domain of PDI is constitutively oxidized, possibly by endoplasmic reticulum oxidoreductase-1α. However, the a domain is normally reduced but becomes oxidized under conditions of oxidative stress. In contrast to the role of oxidized PDI in platelet function, reduced PDI downregulates activation of the neutrophil integrin αMβ2. Intracellular platelet PDI cooperates with Nox1 and contributes to thromboxane A2 production to support platelet function. Finally, αIIb and von Willebrand factor contain free thiols, which alter the functions of these proteins, although the extent to which the PDIs regulate these functions is unclear. We are beginning to understand the substrates and functions of vascular thiol isomerases and the redox network they form that supports hemostasis and thrombosis. Moreover, the disulfide bonds these enzymes target are being defined. The clinical implications of the knowledge gained are wide-ranging.
Collapse
Affiliation(s)
- David W Essex
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA.
| | - Lu Wang
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, Rockefeller University, New York, New York, USA
| |
Collapse
|
5
|
Muraoka T, Okumura M, Saio T. Enzymatic and synthetic regulation of polypeptide folding. Chem Sci 2024; 15:2282-2299. [PMID: 38362427 PMCID: PMC10866363 DOI: 10.1039/d3sc05781j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 01/04/2024] [Indexed: 02/17/2024] Open
Abstract
Proper folding is essential for the biological functions of all proteins. The folding process is intrinsically error-prone, and the misfolding of a polypeptide chain can cause the formation of toxic aggregates related to pathological outcomes such as neurodegenerative disease and diabetes. Chaperones and some enzymes are involved in the cellular proteostasis systems that assist polypeptide folding to diminish the risk of aggregation. Elucidating the molecular mechanisms of chaperones and related enzymes is important for understanding proteostasis systems and protein misfolding- and aggregation-related pathophysiology. Furthermore, mechanistic studies of chaperones and related enzymes provide important clues to designing chemical mimics, or chemical chaperones, that are potentially useful for recovering proteostasis activities as therapeutic approaches for treating and preventing protein misfolding-related diseases. In this Perspective, we provide a comprehensive overview of the latest understanding of the folding-promotion mechanisms by chaperones and oxidoreductases and recent progress in the development of chemical mimics that possess activities comparable to enzymes, followed by a discussion of future directions.
Collapse
Affiliation(s)
- Takahiro Muraoka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology Koganei Tokyo 184-8588 Japan
- Kanagawa Institute of Industrial Science and Technology (KISTEC) Kanagawa 243-0435 Japan
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University Sendai Miyagi 980-8578 Japan
| | - Tomohide Saio
- Division of Molecular Life Science, Institute of Advanced Medical Sciences, Tokushima University Tokushima 770-8503 Japan
| |
Collapse
|
6
|
Fujii S, Ushioda R, Nagata K. Redox states in the endoplasmic reticulum directly regulate the activity of calcium channel, inositol 1,4,5-trisphosphate receptors. Proc Natl Acad Sci U S A 2023; 120:e2216857120. [PMID: 37216546 PMCID: PMC10235943 DOI: 10.1073/pnas.2216857120] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/14/2023] [Indexed: 05/24/2023] Open
Abstract
Inositol 1,4,5-trisphosphate receptors (IP3Rs) are one of the two types of tetrameric ion channels that release calcium ion (Ca2+) from the endoplasmic reticulum (ER) into the cytosol. Ca2+ released via IP3Rs is a fundamental second messenger for numerous cell functions. Disturbances in the intracellular redox environment resulting from various diseases and aging interfere with proper calcium signaling, however, the details are unclear. Here, we elucidated the regulatory mechanisms of IP3Rs by protein disulfide isomerase family proteins localized in the ER by focusing on four cysteine residues residing in the ER lumen of IP3Rs. First, we revealed that two of the cysteine residues are essential for functional tetramer formation of IP3Rs. Two other cysteine residues, on the contrary, were revealed to be involved in the regulation of IP3Rs activity; its oxidation by ERp46 and the reduction by ERdj5 caused the activation and the inactivation of IP3Rs activity, respectively. We previously reported that ERdj5 can activate the sarco/endoplasmic reticulum Ca2+-ATPase isoform 2b (SERCA2b) using its reducing activity [Ushioda et al., Proc. Natl. Acad. Sci. U.S.A. 113, E6055-E6063 (2016)]. Thus, we here established that ERdj5 exerts the reciprocal regulatory function for IP3Rs and SERCA2b by sensing the ER luminal Ca2+ concentration, which contributes to the calcium homeostasis in the ER.
Collapse
Affiliation(s)
- Shohei Fujii
- Laboratory of Molecular and Cellular Biology, Department of Frontier Life Sciences, Faculty of Life Science, Kyoto Sangyo University, Kyoto603-8555, Japan
| | - Ryo Ushioda
- Laboratory of Molecular and Cellular Biology, Department of Frontier Life Sciences, Faculty of Life Science, Kyoto Sangyo University, Kyoto603-8555, Japan
- Institute for Protein Dynamics, Kyoto Sangyo University, Kyoto603-8555, Japan
| | - Kazuhiro Nagata
- Laboratory of Molecular and Cellular Biology, Department of Frontier Life Sciences, Faculty of Life Science, Kyoto Sangyo University, Kyoto603-8555, Japan
- Institute for Protein Dynamics, Kyoto Sangyo University, Kyoto603-8555, Japan
- JT Biohistory Research Hall, Takatsuki City, Osaka569-1125, Japan
| |
Collapse
|
7
|
Kocatürk B. Identification of thioredoxin domain containing family members' expression pattern and prognostic value in diffuse gliomas via in silico analysis. Cancer Med 2023; 12:3830-3844. [PMID: 36106447 PMCID: PMC9939227 DOI: 10.1002/cam4.5169] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/27/2022] [Accepted: 08/14/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Gliomas are the most prevalent primary tumors of the central nervous system. Their aggressive nature and the obstacles arising during therapy highlights the importance of finding new prognostic markers and therapy targets for gliomas. TXNDC genes are members of the thioredoxin superfamily and were shown to play a role in redox homeostasis, protein folding, electron transfer and also acting as cellular adapters. The well known contribution of these processes in cancer progression prompted us to investigate if TXNDC family members may also play a role in carcinogenesis, in particular diffuse gliomas. METHODS The present study used in silico analysis tools GEPIA, UCSC Xena, Gliovis, cBioPortal, and Ivy GAP to evaluate the expression pattern, prognostic value and clinical significance of TXNDC family members in diffuse gliomas. RESULTS Our analysis showed that TXNDC family members' expression pattern differ between tumors and healthy tissues and among tumors with different grades. The detailed analysis of TXNDC5 in glioma pathogenesis revealed that TXNDC5 expression is associated with more aggressive clinical and molecular features and poor therapy success both in LGG and GBM samples. Kaplan-Meier survival curves represented a worse prognosis for patients with leveated TXNDC5 levels in LGG and all grade glioma patients. The levels of TXNDC5 was shown to be possibly regulated by hypoxia-ER stress axis and a potential mechanism for TXNDC5-driven glioma progression was found to be extracellular matrix (ECM) production which is known to promote tumor aggressiveness. CONCLUSIONS Our results uncovered the previously unknown role of TXNDC family members in glioma pathogenesis and showed that TXNDC5 levels could serve as a predictor of clinical outcome and therapy success and may very well be used for targeted therapy.
Collapse
Affiliation(s)
- Begüm Kocatürk
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| |
Collapse
|
8
|
Wang L, Wang CC. Oxidative protein folding fidelity and redoxtasis in the endoplasmic reticulum. Trends Biochem Sci 2023; 48:40-52. [PMID: 35871147 DOI: 10.1016/j.tibs.2022.06.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/16/2022] [Accepted: 06/29/2022] [Indexed: 02/09/2023]
Abstract
In eukaryotic cells, oxidative protein folding occurs in the lumen of the endoplasmic reticulum (ER), catalyzed by ER sulfhydryl oxidase 1 (Ero1) and protein disulfide isomerase (PDI). The efficiency and fidelity of oxidative protein folding are vital for the function of secretory cells. Here, we summarize oxidative protein folding in yeast, plants, and mammals, and discuss how the conformation and activity of human Ero1-PDI machinery is regulated through various post-translational modifications (PTMs). We propose that oxidative protein folding fidelity and ER redox homeostasis are maintained by both the precise control of Ero1 oxidase activity and the division of labor between PDI family members. We also discuss how deregulated Ero1-PDI functions contribute to human diseases and can be leveraged for therapeutic interventions.
Collapse
Affiliation(s)
- Lei Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Chih-Chen Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
9
|
Du QY, Huo FC, Du WQ, Sun XL, Jiang X, Zhang LS, Pei DS. METTL3 potentiates progression of cervical cancer by suppressing ER stress via regulating m6A modification of TXNDC5 mRNA. Oncogene 2022; 41:4420-4432. [DOI: 10.1038/s41388-022-02435-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 07/27/2022] [Accepted: 08/04/2022] [Indexed: 11/09/2022]
|
10
|
Wang X, Li H, Chang X. The role and mechanism of TXNDC5 in diseases. Eur J Med Res 2022; 27:145. [PMID: 35934705 PMCID: PMC9358121 DOI: 10.1186/s40001-022-00770-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/20/2022] [Indexed: 01/20/2023] Open
Abstract
Thioredoxin domain-containing protein 5 (TXNDC5) is a member of the protein disulfide isomerase (PDI) family. It can promote the formation and rearrangement of disulfide bonds, ensuring proper protein folding. TXNDC5 has three Trx-like domains, which can act independently to introduce disulfide bonds rapidly and disorderly. TXNDC5 is abnormally expressed in various diseases, such as cancer, rheumatoid arthritis (RA), etc. It can protect cells from oxidative stress, promote cell proliferation, inhibit apoptosis and promote the progression of disease. Aberrant expression of TXNDC5 in different diseases suggests its role in disease diagnosis. In addition, targeting TXNDC5 in the treatment of diseases has shown promising application prospects. This article reviews the structure and function of TXNDC5 as well as its role and mechanism in cancer, RA and other diseases.
Collapse
Affiliation(s)
- Xueling Wang
- Medical Research Center of The Affiliated Hospital of Qingdao University, No 1677 Wutaishan Road, Huangdao District, Qingdao, China
| | - Haoran Li
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Qingdao University, No 16 Jiangsu Road, Qingdao, China
| | - Xiaotian Chang
- Medical Research Center of The Affiliated Hospital of Qingdao University, No 1677 Wutaishan Road, Huangdao District, Qingdao, China.
| |
Collapse
|
11
|
Isomoto A, Shoguchi E, Hisata K, Inoue J, Sun Y, Inaba K, Satoh N, Ogawa T, Shibata H. Active Expression of Genes for Protein Modification Enzymes in Habu Venom Glands. Toxins (Basel) 2022; 14:toxins14050300. [PMID: 35622547 PMCID: PMC9146206 DOI: 10.3390/toxins14050300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/09/2022] [Accepted: 04/16/2022] [Indexed: 01/27/2023] Open
Abstract
Genes encoding snake venom toxins have been studied extensively. However, genes involved in the modification and functioning of venom proteins are little known. Protobothrops is a genus of pit vipers, which are venomous and inhabit the Nansei (Southwest) islands of Japan, Taiwan China, Vietnam, Thailand, Myanmar, Nepal, Bhutan, and India. Our previous study decoded the genome of Protobothrops flavoviridis, a species endemic to the Nansei Islands, Japan, and revealed unique evolutionary processes of some venom genes. In this study, we analyzed genes that are highly expressed in venom glands to survey genes for candidate enzymes or chaperone proteins involved in toxin folding and modification. We found that, in addition to genes that encode venom proteins and ribosomal proteins, genes that encode protein disulfide isomerase (PDI) family members (orthologs of human P4HB and PDIA3), Selenoprotein M (SELENOM), and Calreticulin (CALR) are highly expressed in venom glands. Since these enzymes or chaperones are involved in protein modification and potentially possess protein folding functions, we propose that P4HB, SELENOM, CALR, and PDIA3 encode candidate enzymes or chaperones to confer toxic functions upon the venom transcriptome.
Collapse
Affiliation(s)
- Akiko Isomoto
- Division of Genomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan;
- Department of Biological Chemistry, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
- Correspondence: (A.I.); (T.O.); (H.S.)
| | - Eiichi Shoguchi
- Marine Genomics Unit, Okinawa Institute of Science, Technology Graduate University, Onna 904-0495, Japan; (E.S.); (K.H.); (J.I.); (N.S.)
| | - Kanako Hisata
- Marine Genomics Unit, Okinawa Institute of Science, Technology Graduate University, Onna 904-0495, Japan; (E.S.); (K.H.); (J.I.); (N.S.)
| | - Jun Inoue
- Marine Genomics Unit, Okinawa Institute of Science, Technology Graduate University, Onna 904-0495, Japan; (E.S.); (K.H.); (J.I.); (N.S.)
| | - Yinrui Sun
- Division of Genomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan;
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Material, Tohoku University, Sendai 980-8577, Japan;
- Department of Biomolecular Science, Graduate School of Life Sciences, Tohoku University, Sendai 980-8577, Japan
| | - Noriyuki Satoh
- Marine Genomics Unit, Okinawa Institute of Science, Technology Graduate University, Onna 904-0495, Japan; (E.S.); (K.H.); (J.I.); (N.S.)
| | - Tomohisa Ogawa
- Department of Biological Chemistry, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
- Correspondence: (A.I.); (T.O.); (H.S.)
| | - Hiroki Shibata
- Division of Genomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan;
- Correspondence: (A.I.); (T.O.); (H.S.)
| |
Collapse
|
12
|
Zhou J, Wu Y, Rauova L, Koma G, Wang L, Poncz M, Li H, Liu T, Fong KP, Bennett JS, Kunapuli SP, Essex DW. A novel role for endoplasmic reticulum protein 46 (ERp46) in platelet function and arterial thrombosis in mice. Blood 2022; 139:2050-2065. [PMID: 34752599 PMCID: PMC8972093 DOI: 10.1182/blood.2021012055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 10/27/2021] [Indexed: 11/20/2022] Open
Abstract
Although several members of protein disulfide isomerase (PDI) family support thrombosis, other PDI family members with the CXYC motif remain uninvestigated. ERp46 has 3 CGHC redox-active sites and a radically different molecular architecture than other PDIs. Expression of ERp46 on the platelet surface increased with thrombin stimulation. An anti-ERp46 antibody inhibited platelet aggregation, adenosine triphosphate (ATP) release, and αIIbβ3 activation. ERp46 protein potentiated αIIbβ3 activation, platelet aggregation, and ATP release, whereas inactive ERp46 inhibited these processes. ERp46 knockout mice had prolonged tail-bleeding times and decreased platelet accumulation in thrombosis models that was rescued by infusion of ERp46. ERp46-deficient platelets had decreased αIIbβ3 activation, platelet aggregation, ATP release, and P-selectin expression. The defects were reversed by wild-type ERp46 and partially reversed by ERp46 containing any of the 3 active sites. Platelet aggregation stimulated by an αIIbβ3-activating peptide was inhibited by the anti-ERp46 antibody and was decreased in ERp46-deficient platelets. ERp46 bound tightly to αIIbβ3 by surface plasmon resonance but poorly to platelets lacking αIIbβ3 and physically associated with αIIbβ3 upon platelet activation. ERp46 mediated clot retraction and platelet spreading. ERp46 more strongly reduced disulfide bonds in the β3 subunit than other PDIs and in contrast to PDI, generated thiols in β3 independently of fibrinogen. ERp46 cleaved the Cys473-Cys503 disulfide bond in β3, implicating a target for ERp46. Finally, ERp46-deficient platelets have decreased thiols in β3, implying that ERp46 cleaves disulfide bonds in platelets. In conclusion, ERp46 is critical for platelet function and thrombosis and facilitates αIIbβ3 activation by targeting disulfide bonds.
Collapse
Affiliation(s)
- Junsong Zhou
- Division of Hematology, Department of Medicine, Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA
- The Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Yi Wu
- Division of Hematology, Department of Medicine, Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA
| | - Lubica Rauova
- Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Gavin Koma
- Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Lu Wang
- Division of Hematology, Department of Medicine, Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA
| | - Mortimer Poncz
- Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Hong Li
- Center For Advanced Proteomics Research, New Jersey Medical School, Rutgers University, Newark, NJ; and
| | - Tong Liu
- Center For Advanced Proteomics Research, New Jersey Medical School, Rutgers University, Newark, NJ; and
| | - Karen P Fong
- Division of Hematology/Oncology, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA
| | - Joel S Bennett
- Division of Hematology/Oncology, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA
| | - Satya P Kunapuli
- Division of Hematology, Department of Medicine, Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA
| | - David W Essex
- Division of Hematology, Department of Medicine, Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA
| |
Collapse
|
13
|
Bidooki SH, Alejo T, Sánchez-Marco J, Martínez-Beamonte R, Abuobeid R, Burillo JC, Lasheras R, Sebastian V, Rodríguez-Yoldi MJ, Arruebo M, Osada J. Squalene Loaded Nanoparticles Effectively Protect Hepatic AML12 Cell Lines against Oxidative and Endoplasmic Reticulum Stress in a TXNDC5-Dependent Way. Antioxidants (Basel) 2022; 11:antiox11030581. [PMID: 35326231 PMCID: PMC8945349 DOI: 10.3390/antiox11030581] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 01/27/2023] Open
Abstract
Virgin olive oil, the main source of fat in the Mediterranean diet, contains a substantial amount of squalene which possesses natural antioxidant properties. Due to its highly hydrophobic nature, its bioavailability is reduced. In order to increase its delivery and potentiate its actions, squalene has been loaded into PLGA nanoparticles (NPs). The characterization of the resulting nanoparticles was assessed by electron microscopy, dynamic light scattering, zeta potential and high-performance liquid chromatography. Reactive oxygen species (ROS) generation and cell viability assays were carried out in AML12 (alpha mouse liver cell line) and a TXNDC5-deficient AML12 cell line (KO), which was generated by CRISPR/cas9 technology. According to the results, squalene was successfully encapsulated in PLGA NPs, and had rapid and efficient cellular uptake at 30 µM squalene concentration. Squalene reduced ROS in AML12, whereas ROS levels increased in KO cells and improved cell viability in both when subjected to oxidative stress by significant induction of Gpx4. Squalene enhanced cell viability in ER-induced stress by decreasing Ern1 or Eif2ak3 expressions. In conclusion, TXNDC5 shows a crucial role in regulating ER-induced stress through different signaling pathways, and squalene protects mouse hepatocytes from oxidative and endoplasmic reticulum stresses by several molecular mechanisms depending on TXNDC5.
Collapse
Affiliation(s)
- Seyed Hesamoddin Bidooki
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, E-50013 Zaragoza, Spain; (S.H.B.); (J.S.-M.); (R.M.-B.); (R.A.)
| | - Teresa Alejo
- Departamento de Ingeniería Química y Tecnologías del Medio Ambiente, Universidad de Zaragoza, E-50018 Zaragoza, Spain; (T.A.); (V.S.); (M.A.)
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - Javier Sánchez-Marco
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, E-50013 Zaragoza, Spain; (S.H.B.); (J.S.-M.); (R.M.-B.); (R.A.)
| | - Roberto Martínez-Beamonte
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, E-50013 Zaragoza, Spain; (S.H.B.); (J.S.-M.); (R.M.-B.); (R.A.)
- Instituto Agroalimentario de Aragón, CITA-Universidad de Zaragoza, E-50013 Zaragoza, Spain;
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain
| | - Roubi Abuobeid
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, E-50013 Zaragoza, Spain; (S.H.B.); (J.S.-M.); (R.M.-B.); (R.A.)
| | - Juan Carlos Burillo
- Laboratorio Agroambiental, Servicio de Seguridad Agroalimentaria de la Dirección General de Alimentación y Fomento Agroalimentario, Gobierno de Aragón, E-50059 Zaragoza, Spain; (J.C.B.); (R.L.)
| | - Roberto Lasheras
- Laboratorio Agroambiental, Servicio de Seguridad Agroalimentaria de la Dirección General de Alimentación y Fomento Agroalimentario, Gobierno de Aragón, E-50059 Zaragoza, Spain; (J.C.B.); (R.L.)
| | - Victor Sebastian
- Departamento de Ingeniería Química y Tecnologías del Medio Ambiente, Universidad de Zaragoza, E-50018 Zaragoza, Spain; (T.A.); (V.S.); (M.A.)
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain
| | - María J. Rodríguez-Yoldi
- Instituto Agroalimentario de Aragón, CITA-Universidad de Zaragoza, E-50013 Zaragoza, Spain;
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain
- Departamento de Farmacología, Fisiología, Medicina Legal y Forense, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, E-50013 Zaragoza, Spain
| | - Manuel Arruebo
- Departamento de Ingeniería Química y Tecnologías del Medio Ambiente, Universidad de Zaragoza, E-50018 Zaragoza, Spain; (T.A.); (V.S.); (M.A.)
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain
| | - Jesús Osada
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, E-50013 Zaragoza, Spain; (S.H.B.); (J.S.-M.); (R.M.-B.); (R.A.)
- Instituto Agroalimentario de Aragón, CITA-Universidad de Zaragoza, E-50013 Zaragoza, Spain;
- Departamento de Farmacología, Fisiología, Medicina Legal y Forense, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, E-50013 Zaragoza, Spain
- Correspondence: ; Tel.: +34-976-761-644; Fax: +34-976-761-612
| |
Collapse
|
14
|
Fan F, Zhang Q, Zhang Y, Huang G, Liang X, Wang CC, Wang L, Lu D. Two protein disulfide isomerase subgroups work synergistically in catalyzing oxidative protein folding. PLANT PHYSIOLOGY 2022; 188:241-254. [PMID: 34609517 PMCID: PMC8774737 DOI: 10.1093/plphys/kiab457] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/31/2021] [Indexed: 05/13/2023]
Abstract
Disulfide bonds play essential roles in the folding of secretory and plasma membrane proteins in the endoplasmic reticulum (ER). In eukaryotes, protein disulfide isomerase (PDI) is an enzyme catalyzing the disulfide bond formation and isomerization in substrates. The Arabidopsis (Arabidopsis thaliana) genome encodes diverse PDIs including structurally distinct subgroups PDI-L and PDI-M/S. It remains unclear how these AtPDIs function to catalyze the correct disulfide formation. We found that one Arabidopsis ER oxidoreductin-1 (Ero1), AtERO1, can interact with multiple PDIs. PDI-L members AtPDI2/5/6 mainly serve as an isomerase, while PDI-M/S members AtPDI9/10/11 are more efficient in accepting oxidizing equivalents from AtERO1 and catalyzing disulfide bond formation. Accordingly, the pdi9/10/11 triple mutant exhibited much stronger inhibition than pdi1/2/5/6 quadruple mutant under dithiothreitol treatment, which caused disruption of disulfide bonds in plant proteins. Furthermore, AtPDI2/5 work synergistically with PDI-M/S members in relaying disulfide bonds from AtERO1 to substrates. Our findings reveal the distinct but overlapping roles played by two structurally different AtPDI subgroups in oxidative protein folding in the ER.
Collapse
Affiliation(s)
- Fenggui Fan
- State Key Laboratory of Plant Genomics, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education & College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Qiao Zhang
- Hebei Collaboration Innovation Center for Cell Signaling, Hebei Normal University, Shijiazhuang 050024, China
| | - Yini Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guozhong Huang
- State Key Laboratory of Plant Genomics, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
| | - Xuelian Liang
- Hebei Collaboration Innovation Center for Cell Signaling, Hebei Normal University, Shijiazhuang 050024, China
| | - Chih-chen Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dongping Lu
- State Key Laboratory of Plant Genomics, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
- Hebei Collaboration Innovation Center for Cell Signaling, Hebei Normal University, Shijiazhuang 050024, China
- Author for communication:
| |
Collapse
|
15
|
Nishino H, Kitamura M, Okada S, Miyake R, Okumura M, Muraoka T. Cysteine-based protein folding modulators for trapping intermediates and misfolded forms. RSC Adv 2022; 12:26658-26664. [PMID: 36275147 PMCID: PMC9490518 DOI: 10.1039/d2ra04044a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/12/2022] [Indexed: 11/21/2022] Open
Abstract
Folding is a key process to form functional conformations of proteins. Folding via on-pathway intermediates leads to the formation of native structures, while folding through off-pathways affords non-native and disease-causing forms. Trapping folding intermediates and misfolded forms is important for investigating folding mechanisms and disease-related biological properties of the misfolded proteins. We developed cysteine-containing dipeptides conjugated with amino acids possessing mono- and diamino-groups. In oxidative protein folding involving disulfide-bond formation, the addition of cysteine and oxidized glutathione readily promoted the folding to afford native forms. In contrast, despite the acceleration of disulfide-bond formation, non-native isomers formed in significantly increased yields upon the addition of the dipeptides. This study provides a molecular design of cysteine-based protein-folding modulators that afford proteins adopting non-native conformations through intermolecular disulfide-bond formation. Because of the intrinsic reversibility of the disulfide bonds upon redox reactions, the disulfide bond-based approach demonstrated here is expected to lead to the development of reversible methodologies for trapping transient and misfolded forms by intermolecular disulfide bond formation and restarting the folding processes of the trapped forms by subsequent cleavage of the intermolecular disulfide bonds. In this study, cysteine-containing dipeptides conjugated with amino acids possessing mono- and diamino-groups were developed as protein-folding modulators affording non-native forms through intermolecular disulfide-bond formation.![]()
Collapse
Affiliation(s)
- Hayato Nishino
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Mai Kitamura
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Shunsuke Okada
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Ryosuke Miyake
- Department of Chemistry and Biochemistry, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Takahiro Muraoka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 3-8-1 Harumi-cho, Fuchu, Tokyo 183-8538, Japan
- Kanagawa Institute of Industrial Science and Technology (KISTEC), Kanagawa, 243-0435, Japan
| |
Collapse
|
16
|
Matsusaki M, Okada R, Tanikawa Y, Kanemura S, Ito D, Lin Y, Watabe M, Yamaguchi H, Saio T, Lee YH, Inaba K, Okumura M. Functional Interplay between P5 and PDI/ERp72 to Drive Protein Folding. BIOLOGY 2021; 10:biology10111112. [PMID: 34827105 PMCID: PMC8615271 DOI: 10.3390/biology10111112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/21/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022]
Abstract
P5 is one of protein disulfide isomerase family proteins (PDIs) involved in endoplasmic reticulum (ER) protein quality control that assists oxidative folding, inhibits protein aggregation, and regulates the unfolded protein response. P5 reportedly interacts with other PDIs via intermolecular disulfide bonds in cultured cells, but it remains unclear whether complex formation between P5 and other PDIs is involved in regulating enzymatic and chaperone functions. Herein, we established the far-western blot method to detect non-covalent interactions between P5 and other PDIs and found that PDI and ERp72 are partner proteins of P5. The enzymatic activity of P5-mediated oxidative folding is up-regulated by PDI, while the chaperone activity of P5 is stimulated by ERp72. These findings shed light on the mechanism by which the complex formations among PDIs drive to synergistically accelerate protein folding and prevents aggregation. This knowledge has implications for understanding misfolding-related pathology.
Collapse
Affiliation(s)
- Motonori Matsusaki
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3, Aramakiaza Aoba, Aoba-ku, Sendai 980-8578, Japan; (M.M.); (S.K.); (M.W.)
- Institute of Advanced Medical Sciences, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan;
| | - Rina Okada
- School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan; (R.O.); (Y.T.); (H.Y.)
| | - Yuya Tanikawa
- School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan; (R.O.); (Y.T.); (H.Y.)
| | - Shingo Kanemura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3, Aramakiaza Aoba, Aoba-ku, Sendai 980-8578, Japan; (M.M.); (S.K.); (M.W.)
- School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan; (R.O.); (Y.T.); (H.Y.)
| | - Dai Ito
- Department of Brain and Cognitive Science, Daegu Gyeongbuk Institute of Science and Technology, 333, Techno Jungang Daero, Daegu 42988, Korea;
| | - Yuxi Lin
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si 28119, Korea; (Y.L.); (Y.-H.L.)
| | - Mai Watabe
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3, Aramakiaza Aoba, Aoba-ku, Sendai 980-8578, Japan; (M.M.); (S.K.); (M.W.)
| | - Hiroshi Yamaguchi
- School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan; (R.O.); (Y.T.); (H.Y.)
| | - Tomohide Saio
- Institute of Advanced Medical Sciences, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan;
| | - Young-Ho Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si 28119, Korea; (Y.L.); (Y.-H.L.)
- Bio-Analytical Science, University of Science and Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
- Graduate School of Analytical Science and Technology, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
- Research Headquarters, Korea Brain Research Institute, 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan;
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3, Aramakiaza Aoba, Aoba-ku, Sendai 980-8578, Japan; (M.M.); (S.K.); (M.W.)
- Correspondence: ; Tel.: +81-22-795-5764
| |
Collapse
|
17
|
Tanikawa Y, Kanemura S, Ito D, Lin Y, Matsusaki M, Kuroki K, Yamaguchi H, Maenaka K, Lee YH, Inaba K, Okumura M. Ca 2+ Regulates ERp57-Calnexin Complex Formation. Molecules 2021; 26:molecules26102853. [PMID: 34064874 PMCID: PMC8151781 DOI: 10.3390/molecules26102853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/01/2021] [Accepted: 05/09/2021] [Indexed: 11/20/2022] Open
Abstract
ERp57, a member of the protein disulfide isomerase family, is a ubiquitous disulfide catalyst that functions in the oxidative folding of various clients in the mammalian endoplasmic reticulum (ER). In concert with ER lectin-like chaperones calnexin and calreticulin (CNX/CRT), ERp57 functions in virtually all folding stages from co-translation to post-translation, and thus plays a critical role in maintaining protein homeostasis, with direct implication for pathology. Here, we present mechanisms by which Ca2+ regulates the formation of the ERp57-calnexin complex. Biochemical and isothermal titration calorimetry analyses revealed that ERp57 strongly interacts with CNX via a non-covalent bond in the absence of Ca2+. The ERp57-CNX complex not only promoted the oxidative folding of human leukocyte antigen heavy chains, but also inhibited client aggregation. These results suggest that this complex performs both enzymatic and chaperoning functions under abnormal physiological conditions, such as Ca2+ depletion, to effectively guide proper oxidative protein folding. The findings shed light on the molecular mechanisms underpinning crosstalk between the chaperone network and Ca2+.
Collapse
Affiliation(s)
- Yuya Tanikawa
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan; (Y.T.); (S.K.); (H.Y.)
| | - Shingo Kanemura
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan; (Y.T.); (S.K.); (H.Y.)
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai 980-8578, Japan;
| | - Dai Ito
- Department of Brain and Cognitive Science, Daegu Gyeongbuk Institute of Science and Technology, 333 Techno Jungang Daero, Daegu 42988, Korea;
| | - Yuxi Lin
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162 Yeongudanji-ro, Ochang, Cheongju 28119, Korea; (Y.L.); (Y.-H.L.)
| | - Motonori Matsusaki
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai 980-8578, Japan;
- Institute of Advanced Medical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Kimiko Kuroki
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Nishi 6, Kita 12, Kita-ku, Sapporo 060-0812, Japan; (K.K.); (K.M.)
| | - Hiroshi Yamaguchi
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan; (Y.T.); (S.K.); (H.Y.)
| | - Katsumi Maenaka
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Nishi 6, Kita 12, Kita-ku, Sapporo 060-0812, Japan; (K.K.); (K.M.)
- Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences and Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Nishi 6, Kita 12, Kita-ku, Sapporo 060-0812, Japan
| | - Young-Ho Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162 Yeongudanji-ro, Ochang, Cheongju 28119, Korea; (Y.L.); (Y.-H.L.)
- Research Headquarters, Korea Brain Research Institute, 61 Cheomdan-ro, Dong-gu, Daegu 41068, Korea
- Bio-Analytical Science, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
- Graduate School of Analytical Science and Technology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan;
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai 980-8578, Japan;
- Fusion Oriented Research for Disruptive Science and Technology, Japan Science Technology Agency, Chiyoda-ku, Tokyo 102-0075, Japan
- Correspondence: ; Tel.: +81-22-795-5764
| |
Collapse
|
18
|
Bolduc J, Koruza K, Luo T, Malo Pueyo J, Vo TN, Ezeriņa D, Messens J. Peroxiredoxins wear many hats: Factors that fashion their peroxide sensing personalities. Redox Biol 2021; 42:101959. [PMID: 33895094 PMCID: PMC8113037 DOI: 10.1016/j.redox.2021.101959] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/07/2021] [Accepted: 03/25/2021] [Indexed: 02/07/2023] Open
Abstract
Peroxiredoxins (Prdxs) sense and assess peroxide levels, and signal through protein interactions. Understanding the role of the multiple structural and post-translational modification (PTM) layers that tunes the peroxiredoxin specificities is still a challenge. In this review, we give a tabulated overview on what is known about human and bacterial peroxiredoxins with a focus on structure, PTMs, and protein-protein interactions. Armed with numerous cellular and atomic level experimental techniques, we look at the future and ask ourselves what is still needed to give us a clearer view on the cellular operating power of Prdxs in both stress and non-stress conditions.
Collapse
Affiliation(s)
- Jesalyn Bolduc
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, B-1050, Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
| | - Katarina Koruza
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, B-1050, Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
| | - Ting Luo
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, B-1050, Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
| | - Julia Malo Pueyo
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, B-1050, Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
| | - Trung Nghia Vo
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, B-1050, Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
| | - Daria Ezeriņa
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, B-1050, Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
| | - Joris Messens
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie, B-1050, Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050, Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050, Brussels, Belgium.
| |
Collapse
|
19
|
Okumura M, Kanemura S, Matsusaki M, Kinoshita M, Saio T, Ito D, Hirayama C, Kumeta H, Watabe M, Amagai Y, Lee YH, Akiyama S, Inaba K. A unique leucine-valine adhesive motif supports structure and function of protein disulfide isomerase P5 via dimerization. Structure 2021; 29:1357-1370.e6. [PMID: 33857433 DOI: 10.1016/j.str.2021.03.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/25/2021] [Accepted: 03/25/2021] [Indexed: 01/13/2023]
Abstract
P5, also known as PDIA6, is a PDI family member involved in the ER quality control. Here, we revealed that P5 dimerizes via a unique adhesive motif contained in the N-terminal thioredoxin-like domain. Unlike conventional leucine zipper motifs with leucine residues every two helical turns on ∼30-residue parallel α helices, this adhesive motif includes periodic repeats of leucine/valine residues at the third or fourth position spanning five helical turns on 15-residue anti-parallel α helices. The P5 dimerization interface is further stabilized by several reciprocal salt bridges and C-capping interactions between protomers. A monomeric P5 mutant with the impaired adhesive motif showed structural instability and local unfolding, and behaved as aberrant proteins that induce the ER stress response. Disassembly of P5 to monomers compromised its ability to inactivate IRE1α via intermolecular disulfide bond reduction and its Ca2+-dependent regulation of chaperone function in vitro. Thus, the leucine-valine adhesive motif supports structure and function of P5.
Collapse
Affiliation(s)
- Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan.
| | - Shingo Kanemura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan; School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Motonori Matsusaki
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Misaki Kinoshita
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Tomohide Saio
- Institute of Advanced Medical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Dai Ito
- Deartment of Brain & Cognitive Science, Daegu Gyeongbuk Institute of Science & Technology, Techno Jungang Daero 333, Daegu 42988, South Korea
| | - Chihiro Hirayama
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Hiroyuki Kumeta
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Kita 21 Nishi 11, Kita, Sapporo 0110021, Japan
| | - Mai Watabe
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiaza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Yuta Amagai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Young-Ho Lee
- Bio-Analytical Science, University of Science and Technology, Daejeon 34113, Korea; Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Korea; Research Headquarters, Korea Brain Research Institute, Daegu 41068, Korea; Protein Structure Group, Korea Basic Science Institute, Ochang, Chungbuk 28199, South Korea
| | - Shuji Akiyama
- RIKEN SPring-8 Center, RIKEN Harima Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan; Research Center of Integrative Molecular System (CIMoS), Institute for Molecular Science, National Institute of Natural Sciences, Okazaki 444-8585, Japan; Department of Functional Molecular Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki 444-8585, Japan
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
| |
Collapse
|
20
|
Hirayama C, Machida K, Noi K, Murakawa T, Okumura M, Ogura T, Imataka H, Inaba K. Distinct roles and actions of protein disulfide isomerase family enzymes in catalysis of nascent-chain disulfide bond formation. iScience 2021; 24:102296. [PMID: 33855279 PMCID: PMC8024706 DOI: 10.1016/j.isci.2021.102296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/13/2021] [Accepted: 03/05/2021] [Indexed: 12/04/2022] Open
Abstract
The mammalian endoplasmic reticulum (ER) harbors more than 20 members of the protein disulfide isomerase (PDI) family that act to maintain proteostasis. Herein, we developed an in vitro system for directly monitoring PDI- or ERp46-catalyzed disulfide bond formation in ribosome-associated nascent chains of human serum albumin. The results indicated that ERp46 more efficiently introduced disulfide bonds into nascent chains with a short segment exposed outside the ribosome exit site than PDI. Single-molecule analysis by high-speed atomic force microscopy further revealed that PDI binds nascent chains persistently, forming a stable face-to-face homodimer, whereas ERp46 binds for a shorter time in monomeric form, indicating their different mechanisms for substrate recognition and disulfide bond introduction. Thus, ERp46 serves as a more potent disulfide introducer especially during the early stages of translation, whereas PDI can catalyze disulfide formation when longer nascent chains emerge out from ribosome. We developed an in vitro system for monitoring nascent-chain disulfide formation High-speed AFM visualized PDI and ERp46 molecules acting on nascent chains PDI persistently holds nascent chains via dimerization for disulfide introduction ERp46 rapidly introduces disulfide bonds to nascent chains via short-time binding
Collapse
Affiliation(s)
- Chihiro Hirayama
- Institute of Multidisciplinary Research for Advanced Materials, Katahira 2-1-1, Aoba-ku, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Kodai Machida
- Graduate School of Engineering, University of Hyogo, Himeji, Hyogo 671-2280, Japan
| | - Kentaro Noi
- Institute for NanoScience Design, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Tadayoshi Murakawa
- Graduate School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan
| | - Masaki Okumura
- Institute of Multidisciplinary Research for Advanced Materials, Katahira 2-1-1, Aoba-ku, Tohoku University, Sendai, Miyagi 980-8577, Japan.,Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Teru Ogura
- Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Kumamoto 860-0811, Japan.,Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto 862-0973, Japan
| | - Hiroaki Imataka
- Graduate School of Engineering, University of Hyogo, Himeji, Hyogo 671-2280, Japan
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Katahira 2-1-1, Aoba-ku, Tohoku University, Sendai, Miyagi 980-8577, Japan
| |
Collapse
|
21
|
Ninagawa S, George G, Mori K. Mechanisms of productive folding and endoplasmic reticulum-associated degradation of glycoproteins and non-glycoproteins. Biochim Biophys Acta Gen Subj 2020; 1865:129812. [PMID: 33316349 DOI: 10.1016/j.bbagen.2020.129812] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 12/09/2020] [Accepted: 12/09/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND The quality of proteins destined for the secretory pathway is ensured by two distinct mechanisms in the endoplasmic reticulum (ER): productive folding of newly synthesized proteins, which is assisted by ER-localized molecular chaperones and in most cases also by disulfide bond formation and transfer of an oligosaccharide unit; and ER-associated degradation (ERAD), in which proteins unfolded or misfolded in the ER are recognized and processed for delivery to the ER membrane complex, retrotranslocated through the complex with simultaneous ubiquitination, extracted by AAA-ATPase to the cytosol, and finally degraded by the proteasome. SCOPE OF REVIEW We describe the mechanisms of productive folding and ERAD, with particular attention to glycoproteins versus non-glycoproteins, and to yeast versus mammalian systems. MAJOR CONCLUSION Molecular mechanisms of the productive folding of glycoproteins and non-glycoproteins mediated by molecular chaperones and protein disulfide isomerases are well conserved from yeast to mammals. Additionally, mammals have gained an oligosaccharide structure-dependent folding cycle for glycoproteins. The molecular mechanisms of ERAD are also well conserved from yeast to mammals, but redundant expression of yeast orthologues in mammals has been encountered, particularly for components involved in recognition and processing of glycoproteins and components of the ER membrane complex involved in retrotranslocation and simultaneous ubiquitination of glycoproteins and non-glycoproteins. This may reflect an evolutionary consequence of increasing quantity or quality needs toward mammals. GENERAL SIGNIFICANCE The introduction of innovative genome editing technology into analysis of the mechanisms of mammalian ERAD, as exemplified here, will provide new insights into the pathogenesis of various diseases.
Collapse
Affiliation(s)
- Satoshi Ninagawa
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
| | - Ginto George
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Kazutoshi Mori
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
| |
Collapse
|
22
|
Okumura M, Noi K, Inaba K. Visualization of structural dynamics of protein disulfide isomerase enzymes in catalysis of oxidative folding and reductive unfolding. Curr Opin Struct Biol 2020; 66:49-57. [PMID: 33176263 DOI: 10.1016/j.sbi.2020.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/18/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023]
Abstract
Time-resolved single-molecule observations by high-speed atomic force microscopy (HS-AFM), have greatly advanced our understanding of how proteins operate to fulfill their unique functions. Using this device, we succeeded in visualizing two members of the protein disulfide isomerase family (PDIs) that act to catalyze oxidative folding and reductive unfolding in the endoplasmic reticulum (ER). ERdj5, an ER-resident disulfide reductase that promotes ER-associated degradation, reduces nonnative disulfide bonds of misfolded proteins utilizing the dynamics of its N-terminal and C-terminal clusters. With unfolded substrates, canonical PDI assembles to form a face-to-face dimer with a central hydrophobic cavity and multiple redox-active sites to accelerate oxidative folding inside the cavity. Altogether, PDIs exert highly dynamic mechanisms to ensure the protein quality control in the ER.
Collapse
Affiliation(s)
- Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Aramaki aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
| | - Kentaro Noi
- Institute of Nanoscience Design, Osaka University, Machikaneyamatyou 1-3, Toyonaka 560-8531, Japan
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan.
| |
Collapse
|
23
|
Kanemura S, Sofia EF, Hirai N, Okumura M, Kadokura H, Inaba K. Characterization of the endoplasmic reticulum-resident peroxidases GPx7 and GPx8 shows the higher oxidative activity of GPx7 and its linkage to oxidative protein folding. J Biol Chem 2020; 295:12772-12785. [PMID: 32719007 DOI: 10.1074/jbc.ra120.013607] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/17/2020] [Indexed: 12/13/2022] Open
Abstract
Oxidative protein folding occurs primarily in the mammalian endoplasmic reticulum, enabled by a diverse network comprising more than 20 members of the protein disulfide isomerase (PDI) family and more than five PDI oxidases. Although the canonical disulfide bond formation pathway involving Ero1α and PDI has been well-studied so far, the physiological roles of the newly identified PDI oxidases, glutathione peroxidase-7 (GPx7) and -8 (GPx8), are only poorly understood. We here demonstrated that human GPx7 has much higher reactivity with H2O2 and hence greater PDI oxidation activity than human GPx8. The high reactivity of GPx7 is due to the presence of a catalytic tetrad at the redox-active site, which stabilizes the sulfenylated species generated upon the reaction with H2O2 Although it was previously postulated that GPx7 catalysis involved a highly reactive peroxidatic cysteine that can be sulfenylated by H2O2, we revealed that a resolving cysteine instead regulates the PDI oxidation activity of GPx7. We also determined that GPx7 formed complexes preferentially with PDI and P5 in H2O2-treated cells. Altogether, these results suggest that human GPx7 functions as an H2O2-dependent PDI oxidase in cells, whereas PDI oxidation may not be the central physiological role of human GPx8.
Collapse
Affiliation(s)
- Shingo Kanemura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, Japan.,School of Science and Technology, Kwansei Gakuin University, Gakuen, Sanda, Hyogo, Japan.,Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Aramaki, Aza, Aoba-ku, Sendai, Miyagi, Japan
| | - Elza Firdiani Sofia
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, Japan
| | - Naoya Hirai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, Japan
| | - Masaki Okumura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, Japan.,Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Aramaki, Aza, Aoba-ku, Sendai, Miyagi, Japan
| | - Hiroshi Kadokura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, Japan
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, Japan
| |
Collapse
|
24
|
George G, Ninagawa S, Yagi H, Saito T, Ishikawa T, Sakuma T, Yamamoto T, Imami K, Ishihama Y, Kato K, Okada T, Mori K. EDEM2 stably disulfide-bonded to TXNDC11 catalyzes the first mannose trimming step in mammalian glycoprotein ERAD. eLife 2020; 9:53455. [PMID: 32065582 PMCID: PMC7039678 DOI: 10.7554/elife.53455] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/07/2020] [Indexed: 01/05/2023] Open
Abstract
Sequential mannose trimming of N-glycan (Man9GlcNAc2 -> Man8GlcNAc2 -> Man7GlcNAc2) facilitates endoplasmic reticulum-associated degradation of misfolded glycoproteins (gpERAD). Our gene knockout experiments in human HCT116 cells have revealed that EDEM2 is required for the first step. However, it was previously shown that purified EDEM2 exhibited no α1,2-mannosidase activity toward Man9GlcNAc2 in vitro. Here, we found that EDEM2 was stably disulfide-bonded to TXNDC11, an endoplasmic reticulum protein containing five thioredoxin (Trx)-like domains. C558 present outside of the mannosidase homology domain of EDEM2 was linked to C692 in Trx5, which solely contains the CXXC motif in TXNDC11. This covalent bonding was essential for mannose trimming and subsequent gpERAD in HCT116 cells. Furthermore, EDEM2-TXNDC11 complex purified from transfected HCT116 cells converted Man9GlcNAc2 to Man8GlcNAc2(isomerB) in vitro. Our results establish the role of EDEM2 as an initiator of gpERAD, and represent the first clear demonstration of in vitro mannosidase activity of EDEM family proteins.
Collapse
Affiliation(s)
- Ginto George
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Satoshi Ninagawa
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Hirokazu Yagi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Taiki Saito
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Tokiro Ishikawa
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Tetsushi Sakuma
- Division of Integrated Sciences for Life, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Takashi Yamamoto
- Division of Integrated Sciences for Life, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Koshi Imami
- Department of Molecular and Cellular BioAnalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Yasushi Ishihama
- Department of Molecular and Cellular BioAnalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Koichi Kato
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.,Exploratory Research Center on Life and Living Systems (ExCELLS) and Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan
| | - Tetsuya Okada
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Kazutoshi Mori
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
| |
Collapse
|
25
|
Matsusaki M, Okuda A, Matsuo K, Gekko K, Masuda T, Naruo Y, Hirose A, Kono K, Tsuchi Y, Urade R. Regulation of plant ER oxidoreductin 1 (ERO1) activity for efficient oxidative protein folding. J Biol Chem 2019; 294:18820-18835. [PMID: 31685660 DOI: 10.1074/jbc.ra119.010917] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/27/2019] [Indexed: 12/14/2022] Open
Abstract
In the endoplasmic reticulum (ER), ER oxidoreductin 1 (ERO1) catalyzes intramolecular disulfide-bond formation within its substrates in coordination with protein-disulfide isomerase (PDI) and related enzymes. However, the molecular mechanisms that regulate the ERO1-PDI system in plants are unknown. Reduction of the regulatory disulfide bonds of the ERO1 from soybean, GmERO1a, is catalyzed by enzymes in five classes of PDI family proteins. Here, using recombinant proteins, vacuum-ultraviolet circular dichroism spectroscopy, biochemical and protein refolding assays, and quantitative immunoblotting, we found that GmERO1a activity is regulated by reduction of intramolecular disulfide bonds involving Cys-121 and Cys-146, which are located in a disordered region, similarly to their locations in human ERO1. Moreover, a GmERO1a variant in which Cys-121 and Cys-146 were replaced with Ala residues exhibited hyperactive oxidation. Soybean PDI family proteins differed in their ability to regulate GmERO1a. Unlike yeast and human ERO1s, for which PDI is the preferred substrate, GmERO1a directly transferred disulfide bonds to the specific active center of members of five classes of PDI family proteins. Of these proteins, GmPDIS-1, GmPDIS-2, GmPDIM, and GmPDIL7 (which are group II PDI family proteins) failed to catalyze effective oxidative folding of substrate RNase A when there was an unregulated supply of disulfide bonds from the C121A/C146A hyperactive mutant GmERO1a, because of its low disulfide-bond isomerization activity. We conclude that regulation of plant ERO1 activity is particularly important for effective oxidative protein folding by group II PDI family proteins.
Collapse
Affiliation(s)
- Motonori Matsusaki
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Aya Okuda
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Koichi Matsuo
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama, Higashi-hiroshima, Hiroshima 739-0046, Japan
| | - Kunihiko Gekko
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama, Higashi-hiroshima, Hiroshima 739-0046, Japan
| | - Taro Masuda
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yurika Naruo
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Akiho Hirose
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Keiichi Kono
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuichiro Tsuchi
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Reiko Urade
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan.
| |
Collapse
|
26
|
Duan G, Ding L, Wei D, Zhou H, Chu J, Zhang S, Qian J. Screening endogenous signal peptides and protein folding factors to promote the secretory expression of heterologous proteins in Pichia pastoris. J Biotechnol 2019; 306:193-202. [PMID: 31202796 DOI: 10.1016/j.jbiotec.2019.06.297] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 06/10/2019] [Accepted: 06/12/2019] [Indexed: 12/23/2022]
Abstract
Secretory expression is most often desired but usually hampered by limitations of signal peptide processing and protein folding in the methylotrophic yeast Pichia pastoris. To alleviate such limitations, novel endogenous signal peptides (Dan4, Gas1, Msb2, and Fre2) and folding factors (Mpd1p, Pdi2p, and Sil1p) were predicted based on the reported P. pastoris secretome and genome. Their effects were investigated using three reporter proteins: yeast-enhanced green fluorescent protein (yEGFP), β-galactosidase (Gal) and cephalosporin C acylase (SECA), in comparison with the commonly used Saccharomyces cerevisiae alpha-mating factor pre-pro leader sequence (α-MF) or folding factors (Pdi1p, BiP, and Hac1p). The newly identified signal sequences were superior over α-MF for production of heterologous proteins. The signal peptide Msb2 increased the specific extracellular production of all reporter proteins, ranging from 1.5- to 8.0-fold, and Dan4 enhanced all total protein production up to 172-fold. Co-expression of folding factors exhibited a protein-specific effect on cell growth, transcription and expression of different reporter genes. All of the novel folding factors enhanced total production of SECA, and Sil1p performed best in the extracellular SECA production, showing a 3.3-fold increase. These novel signal peptides and folding factors can be used for promoting secretion of heterologous proteins in P. pastoris.
Collapse
Affiliation(s)
- Guangdong Duan
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Lumei Ding
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Dongsheng Wei
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Hangcheng Zhou
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Ju Chu
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Siliang Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China
| | - Jiangchao Qian
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China.
| |
Collapse
|
27
|
Dynamic assembly of protein disulfide isomerase in catalysis of oxidative folding. Nat Chem Biol 2019; 15:499-509. [PMID: 30992562 DOI: 10.1038/s41589-019-0268-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 03/07/2019] [Indexed: 11/08/2022]
Abstract
Time-resolved direct observations of proteins in action provide essential mechanistic insights into biological processes. Here, we present mechanisms of action of protein disulfide isomerase (PDI)-the most versatile disulfide-introducing enzyme in the endoplasmic reticulum-during the catalysis of oxidative protein folding. Single-molecule analysis by high-speed atomic force microscopy revealed that oxidized PDI is in rapid equilibrium between open and closed conformations, whereas reduced PDI is maintained in the closed state. In the presence of unfolded substrates, oxidized PDI, but not reduced PDI, assembles to form a face-to-face dimer, creating a central hydrophobic cavity with multiple redox-active sites, where substrates are likely accommodated to undergo accelerated oxidative folding. Such PDI dimers are diverse in shape and have different lifetimes depending on substrates. To effectively guide proper oxidative protein folding, PDI regulates conformational dynamics and oligomeric states in accordance with its own redox state and the configurations or folding states of substrates.
Collapse
|
28
|
Matsusaki M, Kanemura S, Kinoshita M, Lee YH, Inaba K, Okumura M. The Protein Disulfide Isomerase Family: from proteostasis to pathogenesis. Biochim Biophys Acta Gen Subj 2019; 1864:129338. [PMID: 30986509 DOI: 10.1016/j.bbagen.2019.04.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/08/2019] [Accepted: 04/02/2019] [Indexed: 12/13/2022]
Abstract
In mammalian cells, nearly one-third of proteins are inserted into the endoplasmic reticulum (ER), where they undergo oxidative folding and chaperoning assisted by approximately 20 members of the protein disulfide isomerase family (PDIs). PDIs consist of multiple thioredoxin-like domains and recognize a wide variety of proteins via highly conserved interdomain flexibility. Although PDIs have been studied intensely for almost 50 years, exactly how they maintain protein homeostasis in the ER remains unknown, and is important not only for fundamental biological understanding but also for protein misfolding- and aggregation-related pathophysiology. Herein, we review recent advances in structural biology and biophysical approaches that explore the underlying mechanism by which PDIs fulfil their distinct functions to promote productive protein folding and scavenge misfolded proteins in the ER, the primary factory for efficient production of the secretome.
Collapse
Affiliation(s)
- Motonori Matsusaki
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Aramaki aza Aoba 6-3, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Shingo Kanemura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Aramaki aza Aoba 6-3, Aoba-ku, Sendai, Miyagi 980-8578, Japan; School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan
| | - Misaki Kinoshita
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Aramaki aza Aoba 6-3, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Young-Ho Lee
- Protein Structure Group, Korea Basic Science Institute, Ochang, Chungbuk 28199, South Korea; Bio-Analytical Science, University of Science and Technology, Daejeon 34113, South Korea
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Aramaki aza Aoba 6-3, Aoba-ku, Sendai, Miyagi 980-8578, Japan.
| |
Collapse
|
29
|
Chawsheen HA, Ying Q, Jiang H, Wei Q. A critical role of the thioredoxin domain containing protein 5 (TXNDC5) in redox homeostasis and cancer development. Genes Dis 2018; 5:312-322. [PMID: 30591932 PMCID: PMC6303481 DOI: 10.1016/j.gendis.2018.09.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 09/25/2018] [Indexed: 12/17/2022] Open
Abstract
Correct folding of nascent peptides occurs in the endoplasmic reticulum (ER). It is a complicate process primarily accomplished by the coordination of multiple redox proteins including members of the protein disulfide isomerase (PDI) family. As a critical member of the PDI family, thioredoxin domain containing protein 5 (TXNDC5) assists the folding of newly synthesized peptides to their mature form through series of disulfide bond exchange reactions. Interestingly, TXNDC5 is frequently found overexpressed in specimens of many human diseases including various types of cancer. In this review, we summarized the biochemical function of TXNDC5 in mammalian cells and the recent progress on the understanding of its role and molecular mechanisms in cancer development. Findings of TXNDC5 in the activation of intracellular signaling pathways, stimulation of cell growth & proliferation, facilitation of cell survival and modulation of extracellular matrix to affect cancer cell invasion and metastasis are reviewed. These published studies suggest that strategies of targeting TXNDC5 can be developed as potentially valuable methods for the treatment of certain types of cancer in patients.
Collapse
Affiliation(s)
- Hedy A Chawsheen
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40536, USA
| | - Qi Ying
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40536, USA
| | - Hong Jiang
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40536, USA
| | - Qiou Wei
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40536, USA.,Markey Cancer Center, University of Kentucky College of Medicine, Lexington, KY 40536, USA
| |
Collapse
|
30
|
Yu S, Ito S, Wada I, Hosokawa N. ER-resident protein 46 (ERp46) triggers the mannose-trimming activity of ER degradation-enhancing α-mannosidase-like protein 3 (EDEM3). J Biol Chem 2018; 293:10663-10674. [PMID: 29784879 DOI: 10.1074/jbc.ra118.003129] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 05/16/2018] [Indexed: 11/06/2022] Open
Abstract
Protein folding in the cell is regulated by several quality-control mechanisms. Correct folding of glycoproteins in the endoplasmic reticulum (ER) is tightly monitored by the recognition of glycan signals by lectins in the ER-associated degradation (ERAD) pathway. In mammals, mannose trimming from N-glycans is crucial for disposal of misfolded glycoproteins. The mannosidases responsible for this process are ER mannosidase I and ER degradation-enhancing α-mannosidase-like proteins (EDEMs). However, the molecular mechanism of mannose removal by EDEMs remains unclear, partly owing to the difficulty of reconstituting mannosidase activity in vitro Here, our analysis of EDEM3-mediated mannose-trimming activity on a misfolded glycoprotein revealed that ERp46, an ER-resident oxidoreductase, associates stably with EDEM3. This interaction, which depended on the redox activity of ERp46, involved formation of a disulfide bond between the cysteine residues of the ERp46 redox-active sites and the EDEM3 α-mannosidase domain. In a defined in vitro system consisting of recombinant proteins purified from HEK293 cells, the mannose-trimming activity of EDEM3 toward the model misfolded substrate, the glycoprotein T-cell receptor α locus (TCRα), was reconstituted only when ERp46 had established a covalent interaction with EDEM3. On the basis of these findings, we propose that disposal of misfolded glycoproteins through mannose trimming is tightly connected to redox-mediated regulation in the ER.
Collapse
Affiliation(s)
- Shangyu Yu
- From the Laboratory of Molecular and Cellular Biology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto 606-8507
| | - Shinji Ito
- the Medical Research Support Center, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, and
| | - Ikuo Wada
- the Department of Cell Sciences, Institute of Biomedical Sciences, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Nobuko Hosokawa
- From the Laboratory of Molecular and Cellular Biology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto 606-8507,
| |
Collapse
|
31
|
Tan F, Zhu H, He X, Yu N, Zhang X, Xu H, Pei H. Role of TXNDC5 in tumorigenesis of colorectal cancer cells: In vivo and in vitro evidence. Int J Mol Med 2018; 42:935-945. [PMID: 29749460 PMCID: PMC6034924 DOI: 10.3892/ijmm.2018.3664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 02/14/2018] [Indexed: 11/05/2022] Open
Abstract
Thioredoxin domain‑containing 5 (TXNDC5) is reportedly overexpressed in colorectal cancer (CRC) and is therefore considered an oncogene. However, the role of TXNDC5 in CRC tumorigenesis remains unclear. The present study aimed to explore the role of TXNDC5 in CRC tumorigenesis in vitro and in vivo under hypoxic and normoxic conditions. Analyses of patient tissue samples revealed a positive association between the expression of hypoxia‑inducible factor‑1α (HIF‑1α) or TXNDC5 and the TNM stage of CRC. In addition, a positive correlation between the expression levels of HIF‑1α and TXNDC5 was observed in CRC tissues. Furthermore, culturing RKO and HCT‑116 human CRC cell lines under hypoxic conditions significantly increased the expression levels of HIF‑1α and TXNDC5, whereas knockdown of HIF‑1α abolished the hypoxia‑induced expression of TXNDC5. Knockdown of TXNDC5 significantly decreased cell proliferation and colony formation, and incre-ased apoptosis of both cell lines. Furthermore, knockdown of TXNDC5 markedly increased hypoxia‑induced reactive oxygen species (ROS) generation, and the expression of hypoxia‑induced endoplasmic reticulum stress (ER) markers (CCAAT‑enhancer‑binding protein homologous protein, glucose‑regulated protein 78 and activating transcription factor 4) and apoptotic markers (B‑cell lymphoma 2‑associated X protein and cleaved caspase‑8). In addition, the expression levels of TXNDC5 were significantly increased in tumor tissues compared with in adenoma and normal tissues in a mouse model of CRC tumorigenesis. In conclusion, the in vivo data demonstrated that TXNDC5 is overexpressed in CRC tissues, and this overexpression may be associated with unfavorable clinicopathological features. The in vitro data indicated that hypoxia may induce TXNDC5 expression via upregulating HIF‑1α; this effect promoted CRC cell proliferation and survival under hypoxic conditions, likely via inhibiting hypoxia‑induced ROS/ER stress signaling. These findings suggested that TXNDC5 functions as an important stress survival factor to maintain tumorigenesis of CRC cells under hypoxia by regulating hypoxia‑induced ROS/ER stress signaling. The present study provided novel insights into the role of TXNDC5 in the tumorigenesis of CRC.
Collapse
Affiliation(s)
- Fengbo Tan
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Hong Zhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiao He
- Department of Mammary, Hunan Cancer Hospital, Changsha, Hunan 410013, P.R. China
| | - Nanhui Yu
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xingwen Zhang
- Department of Emergency, Hunan Provincial People's Hospital, Changsha, Hunan 410005, P.R. China
| | - Haifan Xu
- Department of Mammary and Thyroid, The First Affiliated Hospital of South China University, Hengyang, Hunan 421001, P.R. China
| | - Haiping Pei
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| |
Collapse
|
32
|
Shih YC, Chen CL, Zhang Y, Mellor RL, Kanter EM, Fang Y, Wang HC, Hung CT, Nong JY, Chen HJ, Lee TH, Tseng YS, Chen CN, Wu CC, Lin SL, Yamada KA, Nerbonne JM, Yang KC. Endoplasmic Reticulum Protein TXNDC5 Augments Myocardial Fibrosis by Facilitating Extracellular Matrix Protein Folding and Redox-Sensitive Cardiac Fibroblast Activation. Circ Res 2018. [PMID: 29535165 DOI: 10.1161/circresaha.117.312130] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
RATIONALE Cardiac fibrosis plays a critical role in the pathogenesis of heart failure. Excessive accumulation of extracellular matrix (ECM) resulting from cardiac fibrosis impairs cardiac contractile function and increases arrhythmogenicity. Current treatment options for cardiac fibrosis, however, are limited, and there is a clear need to identify novel mediators of cardiac fibrosis to facilitate the development of better therapeutics. Exploiting coexpression gene network analysis on RNA sequencing data from failing human heart, we identified TXNDC5 (thioredoxin domain containing 5), a cardiac fibroblast (CF)-enriched endoplasmic reticulum protein, as a potential novel mediator of cardiac fibrosis, and we completed experiments to test this hypothesis directly. OBJECTIVE The objective of this study was to determine the functional role of TXNDC5 in the pathogenesis of cardiac fibrosis. METHODS AND RESULTS RNA sequencing and Western blot analyses revealed that TXNDC5 mRNA and protein were highly upregulated in failing human left ventricles and in hypertrophied/failing mouse left ventricle. In addition, cardiac TXNDC5 mRNA expression levels were positively correlated with those of transcripts encoding transforming growth factor β1 and ECM proteins in vivo. TXNDC5 mRNA and protein were increased in human CF (hCF) under transforming growth factor β1 stimulation in vitro. Knockdown of TXNDC5 attenuated transforming growth factor β1-induced hCF activation and ECM protein upregulation independent of SMAD3 (SMAD family member 3), whereas increasing expression of TXNDC5 triggered hCF activation and proliferation and increased ECM protein production. Further experiments showed that TXNDC5, a protein disulfide isomerase, facilitated ECM protein folding and that depletion of TXNDC5 led to ECM protein misfolding and degradation in CF. In addition, TXNDC5 promotes hCF activation and proliferation by enhancing c-Jun N-terminal kinase activity via increased reactive oxygen species, derived from NAD(P)H oxidase 4. Transforming growth factor β1-induced TXNDC5 upregulation in hCF was dependent on endoplasmic reticulum stress and activating transcription factor 6-mediated transcriptional control. Targeted disruption of Txndc5 in mice (Txndc5-/-) revealed protective effects against isoproterenol-induced cardiac hypertrophy, reduced fibrosis (by ≈70%), and markedly improved left ventricle function; post-isoproterenol left ventricular ejection fraction was 59.1±1.5 versus 40.1±2.5 (P<0.001) in Txndc5-/- versus wild-type mice, respectively. CONCLUSIONS The endoplasmic reticulum protein TXNDC5 promotes cardiac fibrosis by facilitating ECM protein folding and CF activation via redox-sensitive c-Jun N-terminal kinase signaling. Loss of TXNDC5 protects against β agonist-induced cardiac fibrosis and contractile dysfunction. Targeting TXNDC5, therefore, could be a powerful new therapeutic approach to mitigate excessive cardiac fibrosis, thereby improving cardiac function and outcomes in patients with heart failure.
Collapse
Affiliation(s)
- Ying-Chun Shih
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Chao-Ling Chen
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Yan Zhang
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Rebecca L Mellor
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Evelyn M Kanter
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Yun Fang
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Hua-Chi Wang
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Chen-Ting Hung
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Jing-Yi Nong
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Hui-Ju Chen
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Tzu-Han Lee
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Yi-Shuan Tseng
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Chiung-Nien Chen
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Chau-Chung Wu
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Shuei-Liong Lin
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Kathryn A Yamada
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Jeanne M Nerbonne
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei
| | - Kai-Chien Yang
- From the Department and Graduate Institute of Pharmacology (Y.-C.S., C.-L.C., H.-C.W., C.-T.H., J.-Y.N., H.-J.C., T.-H.L., Y.-S.T., K.-C.Y.), Department and Graduate Institute of Medical Education and Bioethics (C.-C.W.), and Department and Graduate Institute of Physiology (S.-L.L.), National Taiwan University College of Medicine, Taipei; Department of Developmental Biology (J.M.N.) and Center for Cardiovascular Research, Cardiovascular Division, Department of Medicine (Y.Z., R.L.M., E.M.K., K.A.Y., J.M.N.), Washington University School of Medicine, St Louis, MO; Department of Medicine, University of Chicago, IL (Y.F.); Department of Surgery (C.-N.C.), Division of Nephrology, Department of Internal Medicine (S.-L.L.), and Division of Cardiology, Department of Internal Medicine (C.-C.W., K.-C.Y.), National Taiwan University Hospital, Taipei.
| |
Collapse
|
33
|
Peng F, Zhang H, Du Y, Tan P. Cetuximab enhances cisplatin-induced endoplasmic reticulum stress-associated apoptosis in laryngeal squamous cell carcinoma cells by inhibiting expression of TXNDC5. Mol Med Rep 2018; 17:4767-4776. [PMID: 29328423 DOI: 10.3892/mmr.2018.8376] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 04/13/2017] [Indexed: 11/06/2022] Open
Abstract
Cisplatin and cetuximab, an anti‑epidermal growth factor receptor (EGFR) monoclonal humanized antibody, have been used for treatment of laryngeal squamous cell carcinoma (LSCC). It has been demonstrated that cisplatin and inhibition of EGFR signaling may induce endoplasmic reticulum (ER) stress‑associated apoptosis. However, ER protein thioredoxin domain‑containing protein 5 (TXNDC5) reportedly protects cells from ER stress‑associated apoptosis. The present study investigated the interaction between cisplatin, cetuximab and TXNDC5 on ER stress‑associated apoptosis in LSCC cells. AMC‑HN‑8 human LSCC cells with or without TXNDC5 overexpression or knockdown were treated with cisplatin (5, 10, 20 and 40 µM) and/or cetuximab (10, 50, 100 and 150 µg/ml), for 12, 24, 36 and 48 h. Cisplatin and cetuximab concentration‑ and time‑dependently increased and decreased the expression of TXNDC5 in AMC‑HN‑8 cells, respectively. Knockdown of TXNDC5 markedly augmented cisplatin‑induced levels of CCAAT/enhancer‑binding protein homologous protein (CHOP), caspase‑3 activity and apoptosis; while overexpression of TXNDC5 largely eliminated cetuximab‑induced levels of CHOP, caspase‑3 activity and apoptosis. Cisplatin and cetuximab demonstrated a combinatorial effect on increasing the levels of CHOP, caspase‑3 activity and apoptosis, which was largely eliminated by overexpression of TXNDC5 or a reactive oxygen species (ROS) scavenger/antagonist. In addition, promoter/luciferase reporter assays revealed that cisplatin and cetuximab regulated the expression of TXNDC5 at the gene transcription/promoter level. In conclusion, the findings suggested that ER stress‑associated apoptosis is a major mechanism underlying the apoptotic effect of cisplatin and cetuximab on LSCC cells; cetuximab enhanced cisplatin‑induced ER stress‑associated apoptosis in LSCC cells largely by inhibiting the expression of TXNDC5 and thereby increasing ROS production; cisplatin and cetuximab had stimulatory and inhibitory effects on the TXNDC5 gene promoter, respectively. The present study offered novel insights into the pharmacological effects of cisplatin and cetuximab on LSCC. It also suggested that TXNDC5 may be a potential therapeutic target for LSCC.
Collapse
Affiliation(s)
- Fusen Peng
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Hailin Zhang
- Department of Head and Neck Surgery, Hunan Tumor Hospital, Changsha, Hunan 410013, P.R. China
| | - Youhong Du
- Department of Otolaryngology Head and Neck Surgery, Loudi Central Hospital, Loudi, Hunan 417000, P.R. China
| | - Pingqing Tan
- Department of Head and Neck Surgery, Hunan Tumor Hospital, Changsha, Hunan 410013, P.R. China
| |
Collapse
|
34
|
Arai K, Ueno H, Asano Y, Chakrabarty G, Shimodaira S, Mugesh G, Iwaoka M. Protein Folding in the Presence of Water-Soluble Cyclic Diselenides with Novel Oxidoreductase and Isomerase Activities. Chembiochem 2017; 19:207-211. [PMID: 29197144 DOI: 10.1002/cbic.201700624] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Indexed: 01/29/2023]
Abstract
The protein disulfide isomerase (PDI) family, found in the endoplasmic reticulum (ER) of the eukaryotic cell, catalyzes the formation and cleavage of disulfide bonds and thereby helps in protein folding. A decrease in PDI activity under ER stress conditions leads to protein misfolding, which is responsible for the progression of various human diseases, such as Alzheimer's, Parkinson's, diabetes mellitus, and atherosclerosis. Here we report that water-soluble cyclic diselenides mimic the multifunctional activity of the PDI family by facilitating oxidative folding, disulfide formation/reduction, and repair of the scrambled disulfide bonds in misfolded proteins.
Collapse
Affiliation(s)
- Kenta Arai
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| | - Haruhito Ueno
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| | - Yuki Asano
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| | - Gaurango Chakrabarty
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Shingo Shimodaira
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Michio Iwaoka
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| |
Collapse
|
35
|
Okuda A, Matsusaki M, Masuda T, Urade R. Identification and characterization of GmPDIL7, a soybean ER membrane-bound protein disulfide isomerase family protein. FEBS J 2017; 284:414-428. [PMID: 27960051 DOI: 10.1111/febs.13984] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 11/04/2016] [Accepted: 12/05/2016] [Indexed: 01/19/2023]
Abstract
Most proteins synthesized in the endoplasmic reticulum (ER) possess intramolecular and intermolecular disulfide bonds, which play an important role in the conformational stability and function of proteins. Hence, eukaryotic cells contain protein disulfide bond formation pathways such as the protein disulfide isomerase (PDI)-ER oxidoreductin 1 (Ero1) system in the ER lumen. In this study, we identified soybean PDIL7 (GmPDIL7), a novel soybean ER membrane-bound PDI family protein, and determined its enzymatic properties. GmPDIL7 has a putative N-terminal signal sequence, a thioredoxin domain with an active center motif (CGHC), and a putative C-terminal transmembrane region. Likewise, we demonstrated that GmPDIL7 is ubiquitously expressed in soybean tissues and is localized in the ER membrane. Furthermore, GmPDIL7 associated with other soybean PDI family proteins in vivo and GmPDIL7 mRNA was slightly upregulated under ER stress. The redox potential of recombinant GmPDIL7 expressed in Escherichia coli was -187 mV, indicating that GmPDIL7 could oxidize unfolded proteins. GmPDIL7 exhibited a dithiol oxidase activity level that was similar to other soybean PDI family proteins. However, the oxidative refolding activity of GmPDIL7 was lower than other soybean PDI family proteins. GmPDIL7 was well oxidized by GmERO1. Taken together, our results indicated that GmPDIL7 primarily plays a role as a supplier of disulfide bonds in nascent proteins for oxidative folding on the ER membrane. DATABASE The nucleotide sequence data for the GmPDIL7 cDNA are available in the DNA Data Bank of Japan (DDBJ) databases under the accession numbers LC158001. ENZYME Protein disulfide isomerase: EC 5.3.4.1.
Collapse
Affiliation(s)
- Aya Okuda
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Japan
| | - Motonori Matsusaki
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Japan
| | - Taro Masuda
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Japan
| | - Reiko Urade
- Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Uji, Japan
| |
Collapse
|
36
|
Soares Moretti AI, Martins Laurindo FR. Protein disulfide isomerases: Redox connections in and out of the endoplasmic reticulum. Arch Biochem Biophys 2016; 617:106-119. [PMID: 27889386 DOI: 10.1016/j.abb.2016.11.007] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/08/2016] [Accepted: 11/21/2016] [Indexed: 12/13/2022]
Abstract
Protein disulfide isomerases are thiol oxidoreductase chaperones from thioredoxin superfamily. As redox folding catalysts from the endoplasmic reticulum (ER), their roles in ER-related redox homeostasis and signaling are well-studied. PDIA1 exerts thiol oxidation/reduction and isomerization, plus chaperone effects. Also, substantial evidence indicates that PDIs regulate thiol-disulfide switches in other cell locations such as cell surface and possibly cytosol. Subcellular PDI translocation routes remain unclear and seem Golgi-independent. The list of signaling and structural proteins reportedly regulated by PDIs keeps growing, via thiol switches involving oxidation, reduction and isomerization, S-(de)nytrosylation, (de)glutathyonylation and protein oligomerization. PDIA1 is required for agonist-triggered Nox NADPH oxidase activation and cell migration in vascular cells and macrophages, while PDIA1-dependent cytoskeletal regulation appears a converging pathway. Extracellularly, PDIs crucially regulate thiol redox signaling of thrombosis/platelet activation, e.g., integrins, and PDIA1 supports expansive caliber remodeling during injury repair via matrix/cytoskeletal organization. Some proteins display regulatory PDI-like motifs. PDI effects are orchestrated by expression levels or post-translational modifications. PDI is redox-sensitive, although probably not a mass-effect redox sensor due to kinetic constraints. Rather, the "all-in-one" organization of its peculiar redox/chaperone properties likely provide PDIs with precision and versatility in redox signaling, making them promising therapeutic targets.
Collapse
Affiliation(s)
- Ana Iochabel Soares Moretti
- Vascular Biology Laboratory, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
| | | |
Collapse
|
37
|
Kanemura S, Okumura M, Yutani K, Ramming T, Hikima T, Appenzeller-Herzog C, Akiyama S, Inaba K. Human ER Oxidoreductin-1α (Ero1α) Undergoes Dual Regulation through Complementary Redox Interactions with Protein-Disulfide Isomerase. J Biol Chem 2016; 291:23952-23964. [PMID: 27703014 DOI: 10.1074/jbc.m116.735662] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 10/04/2016] [Indexed: 11/06/2022] Open
Abstract
In the mammalian endoplasmic reticulum, oxidoreductin-1α (Ero1α) generates protein disulfide bonds and transfers them specifically to canonical protein-disulfide isomerase (PDI) to sustain oxidative protein folding. This oxidative process is coupled to the reduction of O2 to H2O2 on the bound flavin adenine dinucleotide cofactor. Because excessive thiol oxidation and H2O2 generation cause cell death, Ero1α activity must be properly regulated. In addition to the four catalytic cysteines (Cys94, Cys99, Cys104, and Cys131) that are located in the flexible active site region, the Cys208-Cys241 pair located at the base of another flexible loop is necessary for Ero1α regulation, although the mechanistic basis is not fully understood. The present study revealed that the Cys208-Cys241 disulfide was reduced by PDI and other PDI family members during PDI oxidation. Differential scanning calorimetry and small angle X-ray scattering showed that mutation of Cys208 and Cys241 did not grossly affect the thermal stability or overall shape of Ero1α, suggesting that redox regulation of this cysteine pair serves a functional role. Moreover, the flexible loop flanked by Cys208 and Cys241 provides a platform for functional interaction with PDI, which in turn enhances the oxidative activity of Ero1α through reduction of the Cys208-Cys241 disulfide. We propose a mechanism of dual Ero1α regulation by dynamic redox interactions between PDI and the two Ero1α flexible loops that harbor the regulatory cysteines.
Collapse
Affiliation(s)
- Shingo Kanemura
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Aoba-ku, Sendai 980-8577, Japan
| | - Masaki Okumura
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Aoba-ku, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | | | - Thomas Ramming
- the Division of Molecular & Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland
| | | | - Christian Appenzeller-Herzog
- the Division of Molecular & Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland.,the Berufsfachschule Gesundheit Baselland, 4142 Münchenstein, Switzerland
| | - Shuji Akiyama
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan.,the Research Center of Integrative Molecular Systems (CIMoS), Institute for Molecular Science, Okazaki 444-8585, Japan.,the Department of Functional Molecular Science, SOKENDAI (Graduate University for Advanced Studies), Kanagawa 240-0193, Japan, and
| | - Kenji Inaba
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Aoba-ku, Sendai 980-8577, Japan, .,Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Tokyo, 102-0076, Japan
| |
Collapse
|
38
|
Crystal Structure of the ERp44-Peroxiredoxin 4 Complex Reveals the Molecular Mechanisms of Thiol-Mediated Protein Retention. Structure 2016; 24:1755-1765. [PMID: 27642162 DOI: 10.1016/j.str.2016.08.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/22/2016] [Accepted: 08/05/2016] [Indexed: 12/23/2022]
Abstract
ERp44 controls the localization and transport of diverse proteins in the early secretory pathway. The mechanisms that allow client recognition and the source of the oxidative power for forming intermolecular disulfides are as yet unknown. Here we present the structure of ERp44 bound to a client, peroxiredoxin 4. Our data reveal that ERp44 binds the oxidized form of peroxiredoxin 4 via thiol-disulfide interchange reactions. The structure explains the redox-dependent recognition and characterizes the essential non-covalent interactions at the interface. The ERp44-Prx4 covalent complexes can be reduced by glutathione and protein disulfide isomerase family members in the ER, allowing the two components to recycle. This work provides insights into the mechanisms of thiol-mediated protein retention and indicates the key roles of ERp44 in this biochemical cycle to optimize oxidative folding and redox homeostasis.
Collapse
|
39
|
Hochmal AK, Zinzius K, Charoenwattanasatien R, Gäbelein P, Mutoh R, Tanaka H, Schulze S, Liu G, Scholz M, Nordhues A, Offenborn JN, Petroutsos D, Finazzi G, Fufezan C, Huang K, Kurisu G, Hippler M. Calredoxin represents a novel type of calcium-dependent sensor-responder connected to redox regulation in the chloroplast. Nat Commun 2016; 7:11847. [PMID: 27297041 PMCID: PMC4911631 DOI: 10.1038/ncomms11847] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 05/05/2016] [Indexed: 11/30/2022] Open
Abstract
Calcium (Ca(2+)) and redox signalling play important roles in acclimation processes from archaea to eukaryotic organisms. Herein we characterized a unique protein from Chlamydomonas reinhardtii that has the competence to integrate Ca(2+)- and redox-related signalling. This protein, designated as calredoxin (CRX), combines four Ca(2+)-binding EF-hands and a thioredoxin (TRX) domain. A crystal structure of CRX, at 1.6 Å resolution, revealed an unusual calmodulin-fold of the Ca(2+)-binding EF-hands, which is functionally linked via an inter-domain communication path with the enzymatically active TRX domain. CRX is chloroplast-localized and interacted with a chloroplast 2-Cys peroxiredoxin (PRX1). Ca(2+)-binding to CRX is critical for its TRX activity and for efficient binding and reduction of PRX1. Thereby, CRX represents a new class of Ca(2+)-dependent 'sensor-responder' proteins. Genetically engineered Chlamydomonas strains with strongly diminished amounts of CRX revealed altered photosynthetic electron transfer and were affected in oxidative stress response underpinning a function of CRX in stress acclimation.
Collapse
Affiliation(s)
- Ana Karina Hochmal
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | - Karen Zinzius
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | | | - Philipp Gäbelein
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | - Risa Mutoh
- Institute for Protein Research, Osaka University, Suita Osaka 565-0871, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Hideaki Tanaka
- Institute for Protein Research, Osaka University, Suita Osaka 565-0871, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Stefan Schulze
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | - Gai Liu
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, China
| | - Martin Scholz
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | - André Nordhues
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | - Jan Niklas Offenborn
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | - Dimitris Petroutsos
- Centre National Recherche Scientifique, Unité Mixte Recherche 5168, Laboratoire Physiologie Cellulaire et Végétale, F-38054 Grenoble, France
- Commissariat à l'Energie Atomique et Energies Alternatives, l'Institut de Recherches en Technologies et Sciences pour le Vivant, F-38054 Grenoble, France
- Université Grenoble 1, F-38041 Grenoble, France
- Institut National Recherche Agronomique, UMR1200, F-38054 Grenoble, France
| | - Giovanni Finazzi
- Centre National Recherche Scientifique, Unité Mixte Recherche 5168, Laboratoire Physiologie Cellulaire et Végétale, F-38054 Grenoble, France
- Commissariat à l'Energie Atomique et Energies Alternatives, l'Institut de Recherches en Technologies et Sciences pour le Vivant, F-38054 Grenoble, France
- Université Grenoble 1, F-38041 Grenoble, France
- Institut National Recherche Agronomique, UMR1200, F-38054 Grenoble, France
| | - Christian Fufezan
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| | - Kaiyao Huang
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, China
| | - Genji Kurisu
- Institute for Protein Research, Osaka University, Suita Osaka 565-0871, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Michael Hippler
- Institute of Plant Biology and Biotechnology, University of Münster, 48143 Münster, Germany
| |
Collapse
|
40
|
Perri ER, Thomas CJ, Parakh S, Spencer DM, Atkin JD. The Unfolded Protein Response and the Role of Protein Disulfide Isomerase in Neurodegeneration. Front Cell Dev Biol 2016; 3:80. [PMID: 26779479 PMCID: PMC4705227 DOI: 10.3389/fcell.2015.00080] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 12/03/2015] [Indexed: 12/11/2022] Open
Abstract
The maintenance and regulation of proteostasis is a critical function for post-mitotic neurons and its dysregulation is increasingly implicated in neurodegenerative diseases. Despite having different clinical manifestations, these disorders share similar pathology; an accumulation of misfolded proteins in neurons and subsequent disruption to cellular proteostasis. The endoplasmic reticulum (ER) is an important component of proteostasis, and when the accumulation of misfolded proteins occurs within the ER, this disturbs ER homeostasis, giving rise to ER stress. This triggers the unfolded protein response (UPR), distinct signaling pathways that whilst initially protective, are pro-apoptotic if ER stress is prolonged. ER stress is increasingly implicated in neurodegenerative diseases, and emerging evidence highlights the complexity of the UPR in these disorders, with both protective and detrimental components being described. Protein Disulfide Isomerase (PDI) is an ER chaperone induced during ER stress that is responsible for the formation of disulfide bonds in proteins. Whilst initially considered to be protective, recent studies have revealed unconventional roles for PDI in neurodegenerative diseases, distinct from its normal function in the UPR and the ER, although these mechanisms remain poorly defined. However, specific aspects of PDI function may offer the potential to be exploited therapeutically in the future. This review will focus on the evidence linking ER stress and the UPR to neurodegenerative diseases, with particular emphasis on the emerging functions ascribed to PDI in these conditions.
Collapse
Affiliation(s)
- Emma R Perri
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University Melbourne, VIC, Australia
| | - Colleen J Thomas
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University Melbourne, VIC, Australia
| | - Sonam Parakh
- Department of Biomedical Sciences, Faculty of Medicine and Human Science, Macquarie University Sydney, NSW, Australia
| | - Damian M Spencer
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University Melbourne, VIC, Australia
| | - Julie D Atkin
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe UniversityMelbourne, VIC, Australia; Department of Biomedical Sciences, Faculty of Medicine and Human Science, Macquarie UniversitySydney, NSW, Australia
| |
Collapse
|
41
|
Lampropoulou E, Lymperopoulou A, Charonis A. Reduced expression of ERp46 under diabetic conditions in β-cells and the effect of liraglutide. Metabolism 2016; 65:7-15. [PMID: 26683792 DOI: 10.1016/j.metabol.2015.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 09/11/2015] [Accepted: 09/12/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Diabetes mellitus is characterized by peripheral insulin resistance, hyperglycemia and defective insulin secretion. Insulin producing pancreatic β-cells are equipped with a highly developed endoplasmic reticulum (ER) and thus are affected by ER stress under hyperglycemic conditions. We have previously studied the influence of high glucose on cultured β-cells in vitro. Proteomic analysis revealed a number of proteins involved in glucose toxicity, while further biochemical analysis identified the endoplasmic reticulum protein ERp46 as a molecule with a possible role in insulin production at the post-translational level. In addition, the involvement of incretin hormone glucagon-like peptide 1 (GLP-1) in diabetes proposes that incretin-mimetic compounds may be among the optimal choices in future therapeutic interventions; therefore their effects on various aspects of the pathogenesis of diabetes mellitus should be explored in detail. Based on the above, we examined the possible involvement of ERp46 in insulin production and the effect of the GLP-1 analogue liraglutide on the expression of ERp46 in vitro, in β-cells cultured under high glucose conditions and in vivo, in the mouse db/db diabetic model, where pronounced hyperglycemia is a key characteristic. RESULTS Confocal microscopy revealed areas of co-localization of ERp46 and pro-insulin in pancreatic islets. In order to explore the possible interaction between ERp46 and insulin immunoprecipitation was used. In extracts from cultured β-cells, antibodies against pro-insulin co-precipitated ERp46 and antibodies against ERp46 co-precipitated pro-insulin, as shown by Western blotting. Furthermore, data from a proximity ligation assay positioned these two molecules closer than 30nm in distance. When pancreatic β-cells were cultured in high glucose conditions they exhibited a decrease in ERp46 expression, while treatment with the GLP-1 analogue liraglutide restored ERp46 levels, leading to a significant increase of ERp46 in comparison to hyperglycemic conditions. In the diabetic mouse model db(-)/db, ERp46 expression was reduced in pancreatic islets, as documented by morphological and biochemical techniques. This decrease was abolished after treatment with the GLP-1 analogue in a dose-dependent manner. In an attempt to understand the underlying mechanism, we examined the sequence of the promoter of ERp46 and found consensus motifs that can be recognized by transcription factors ATF6 and XBP1. Subsequently, we performed chromatin immunoprecipitation assay and demonstrated that treatment of β-TC-6 cells with 25mmol/L glucose decreases gradually the binding enrichment of ATF6 and XBP1 in ERp46 gene promoter. CONCLUSIONS We propose that since ERp46 is a member of the disulfide isomerases family, it is likely to play a key role in insulin biosynthesis and its reduction under high glucose conditions may be a novel contributor to the glucotoxicity of β-cells. In addition, the GLP-1 analogue liraglutide seems to interfere in this process and may exert its beneficial effects in diabetes by affecting insulin production via restoration of ERp46 expression.
Collapse
Affiliation(s)
- Eugenia Lampropoulou
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Soranou Efessiou 4, Athens 115 27, Greece.
| | - Anna Lymperopoulou
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Soranou Efessiou 4, Athens 115 27, Greece.
| | - Aristidis Charonis
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Soranou Efessiou 4, Athens 115 27, Greece.
| |
Collapse
|
42
|
Wang L, Wang X, Wang CC. Protein disulfide-isomerase, a folding catalyst and a redox-regulated chaperone. Free Radic Biol Med 2015; 83:305-13. [PMID: 25697778 DOI: 10.1016/j.freeradbiomed.2015.02.007] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 02/04/2015] [Accepted: 02/07/2015] [Indexed: 01/08/2023]
Abstract
Protein disulfide-isomerase (PDI) was the first protein-folding catalyst to be characterized, half a century ago. It plays critical roles in a variety of physiological events by displaying oxidoreductase and redox-regulated chaperone activities. This review provides a brief history of the identification of PDI as both an enzyme and a molecular chaperone and of the recent advances in studies on the structure and dynamics of PDI, the substrate binding and release, and the cooperation with its partners to catalyze oxidative protein folding and maintain ER redox homeostasis. In this review, we highlight the structural features of PDI, including the high interdomain flexibility, the multiple binding sites, the two synergic active sites, and the redox-dependent conformational changes.
Collapse
Affiliation(s)
- Lei Wang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Xi Wang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Chih-chen Wang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
| |
Collapse
|
43
|
Okumura M, Kadokura H, Inaba K. Structures and functions of protein disulfide isomerase family members involved in proteostasis in the endoplasmic reticulum. Free Radic Biol Med 2015; 83:314-22. [PMID: 25697777 DOI: 10.1016/j.freeradbiomed.2015.02.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/22/2015] [Accepted: 02/09/2015] [Indexed: 12/16/2022]
Abstract
The endoplasmic reticulum (ER) is an essential cellular compartment in which an enormous number of secretory and cell surface membrane proteins are synthesized and subjected to cotranslational or posttranslational modifications, such as glycosylation and disulfide bond formation. Proper maintenance of ER protein homeostasis (sometimes termed proteostasis) is essential to avoid cellular stresses and diseases caused by abnormal proteins. Accumulating knowledge of cysteine-based redox reactions catalyzed by members of the protein disulfide isomerase (PDI) family has revealed that these enzymes play pivotal roles in productive protein folding accompanied by disulfide formation, as well as efficient ER-associated degradation accompanied by disulfide reduction. Each of PDI family members forms a protein-protein interaction with a preferential partner to fulfill a distinct function. Multiple redox pathways that utilize PDIs appear to function synergistically to attain the highest quality and productivity of the ER, even under various stress conditions. This review describes the structures, physiological functions, and cooperative actions of several essential PDIs, and provides important insights into the elaborate proteostatic mechanisms that have evolved in the extremely active and stress-sensitive ER.
Collapse
Affiliation(s)
- Masaki Okumura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Hiroshi Kadokura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan.
| |
Collapse
|
44
|
Zito E. ERO1: A protein disulfide oxidase and H2O2 producer. Free Radic Biol Med 2015; 83:299-304. [PMID: 25651816 DOI: 10.1016/j.freeradbiomed.2015.01.011] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/08/2015] [Accepted: 01/15/2015] [Indexed: 12/16/2022]
Abstract
Oxidative protein folding in the endoplasmic reticulum (ER) is an essential function of eukaryotic cells that requires the relaying of electrons between the proteinaceous components of the pathway. During this process, protein disulfide isomerase (PDI) chaperones oxidatively fold their client proteins before endoplasmic reticulum oxireductin 1 (ERO1) oxidase transfers electrons from the reduced PDI to the terminal acceptor, which is usually molecular oxygen and is subsequently reduced to H2O2. ERO1 function is essential for disulfide bond formation in yeast, whereas in mammals its function is compensated for by alternative pathways. ERO1 activity is allosterically and transcriptionally regulated by the ER unfolded protein response (UPR). The ER stress-induced upregulation of ERO1 and other genes contributes to a cell's ability to cope with ER stress as a result of an adaptive homeostatic response, but the stress persists if a "maladaptive UPR" fails to reestablish ER homeostasis. As the oxidative activity of ERO1 is related to the production of H2O2 and consequently burdens cells with potentially toxic reactive oxygen species, deregulated ERO1 activity is likely to impair cell fitness under certain conditions of severe ER stress and may therefore lead to a change from an adaptive to a maladaptive UPR. This review summarizes the evidence of the double-edged sword activity of ERO1 by highlighting its role as a protein disulfide oxidase and H2O2 producer.
Collapse
Affiliation(s)
- Ester Zito
- Dulbecco Telethon Institute, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, 20156 Milano, Italy.
| |
Collapse
|
45
|
Horna-Terrón E, Pradilla-Dieste A, Sánchez-de-Diego C, Osada J. TXNDC5, a newly discovered disulfide isomerase with a key role in cell physiology and pathology. Int J Mol Sci 2014; 15:23501-18. [PMID: 25526565 PMCID: PMC4284777 DOI: 10.3390/ijms151223501] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/01/2014] [Accepted: 12/05/2014] [Indexed: 12/26/2022] Open
Abstract
Thioredoxin domain-containing 5 (TXNDC5) is a member of the protein disulfide isomerase family, acting as a chaperone of endoplasmic reticulum under not fully characterized conditions As a result, TXNDC5 interacts with many cell proteins, contributing to their proper folding and correct formation of disulfide bonds through its thioredoxin domains. Moreover, it can also work as an electron transfer reaction, recovering the functional isoform of other protein disulfide isomerases, replacing reduced glutathione in its role. Finally, it also acts as a cellular adapter, interacting with the N-terminal domain of adiponectin receptor. As can be inferred from all these functions, TXNDC5 plays an important role in cell physiology; therefore, dysregulation of its expression is associated with oxidative stress, cell ageing and a large range of pathologies such as arthritis, cancer, diabetes, neurodegenerative diseases, vitiligo and virus infections. Its implication in all these important diseases has made TXNDC5 a susceptible biomarker or even a potential pharmacological target.
Collapse
Affiliation(s)
- Elena Horna-Terrón
- Grado de Biotecnología, Universidad de Zaragoza, Zaragoza E-50013, Spain.
| | | | | | - Jesús Osada
- Departamento Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón (IIS), Universidad de Zaragoza, Zaragoza E-50013, Spain.
| |
Collapse
|
46
|
Okumura M, Kadokura H, Hashimoto S, Yutani K, Kanemura S, Hikima T, Hidaka Y, Ito L, Shiba K, Masui S, Imai D, Imaoka S, Yamaguchi H, Inaba K. Inhibition of the functional interplay between endoplasmic reticulum (ER) oxidoreduclin-1α (Ero1α) and protein-disulfide isomerase (PDI) by the endocrine disruptor bisphenol A. J Biol Chem 2014; 289:27004-27018. [PMID: 25122773 PMCID: PMC4175339 DOI: 10.1074/jbc.m114.564104] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Bisphenol A (BPA) is an endocrine disruptor that may have adverse effects on human health. We recently isolated protein-disulfide isomerase (PDI) as a BPA-binding protein from rat brain homogenates and found that BPA markedly inhibited PDI activity. To elucidate mechanisms of this inhibition, detailed structural, biophysical, and functional analyses of PDI were performed in the presence of BPA. BPA binding to PDI induced significant rearrangement of the N-terminal thioredoxin domain of PDI, resulting in more compact overall structure. This conformational change led to closure of the substrate-binding pocket in b' domain, preventing PDI from binding to unfolded proteins. The b' domain also plays an essential role in the interplay between PDI and ER oxidoreduclin 1α (Ero1α), a flavoenzyme responsible for reoxidation of PDI. We show that BPA inhibited Ero1α-catalyzed PDI oxidation presumably by inhibiting the interaction between the b' domain of PDI and Ero1α; the phenol groups of BPA probably compete with a highly conserved tryptophan residue, located in the protruding β-hairpin of Ero1α, for binding to PDI. Consistently, BPA slowed down the reoxidation of PDI and caused the reduction of PDI in HeLa cells, indicating that BPA has a great impact on the redox homeostasis of PDI within cells. However, BPA had no effect on the interaction between PDI and peroxiredoxin-4 (Prx4), another PDI family oxidase, suggesting that the interaction between Prx4 and PDI is different from that of Ero1α and PDI. These results indicate that BPA, a widely distributed and potentially harmful chemical, inhibits Ero1-PDI-mediated disulfide bond formation.
Collapse
Affiliation(s)
- Masaki Okumura
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan,; Division of Protein Chemistry, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan,; RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan,; School Faculty of Science and Engineering, Kinki University, Kowakae 3-4-1, Higashi-Osaka, Osaka 577-8502, Japan,; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan.
| | - Hiroshi Kadokura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Shoko Hashimoto
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan
| | - Katsuhide Yutani
- RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Shingo Kanemura
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan,; RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan,; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Takaaki Hikima
- RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Yuji Hidaka
- School Faculty of Science and Engineering, Kinki University, Kowakae 3-4-1, Higashi-Osaka, Osaka 577-8502, Japan
| | - Len Ito
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan
| | - Kohei Shiba
- ProCube Business Division, Sysmex Corporation, 1-1-2, Murotani, Nishi-ku, Kobe, Hyogo, 651-2241, Japan, and
| | - Shoji Masui
- Division of Protein Chemistry, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan,; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Daiki Imai
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan,; RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Susumu Imaoka
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan
| | - Hiroshi Yamaguchi
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan,; RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan,.
| | - Kenji Inaba
- Division of Protein Chemistry, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan,; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan.
| |
Collapse
|