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Hong S, Lee HG, Huh WK. ARV1 deficiency induces lipid bilayer stress and enhances rDNA stability by activating the unfolded protein response in Saccharomyces cerevisiae. J Biol Chem 2024; 300:107273. [PMID: 38588806 PMCID: PMC11089378 DOI: 10.1016/j.jbc.2024.107273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 03/18/2024] [Accepted: 04/01/2024] [Indexed: 04/10/2024] Open
Abstract
The stability of ribosomal DNA (rDNA) is maintained through transcriptional silencing by the NAD+-dependent histone deacetylase Sir2 in Saccharomyces cerevisiae. Alongside proteostasis, rDNA stability is a crucial factor regulating the replicative lifespan of S. cerevisiae. The unfolded protein response (UPR) is induced by misfolding of proteins or an imbalance of membrane lipid composition and is responsible for degrading misfolded proteins and restoring endoplasmic reticulum (ER) membrane homeostasis. Recent investigations have suggested that the UPR can extend the replicative lifespan of yeast by enhancing protein quality control mechanisms, but the relationship between the UPR and rDNA stability remains unknown. In this study, we found that the deletion of ARV1, which encodes an ER protein of unknown molecular function, activates the UPR by inducing lipid bilayer stress. In arv1Δ cells, the UPR and the cell wall integrity pathway are activated independently of each other, and the high osmolarity glycerol (HOG) pathway is activated in a manner dependent on Ire1, which mediates the UPR. Activated Hog1 translocates the stress response transcription factor Msn2 to the nucleus, where it promotes the expression of nicotinamidase Pnc1, a well-known Sir2 activator. Following Sir2 activation, rDNA silencing and rDNA stability are promoted. Furthermore, the loss of other ER proteins, such as Pmt1 or Bst1, and ER stress induced by tunicamycin or inositol depletion also enhance rDNA stability in a Hog1-dependent manner. Collectively, these findings suggest that the induction of the UPR enhances rDNA stability in S. cerevisiae by promoting the Msn2-Pnc1-Sir2 pathway in a Hog1-dependent manner.
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Affiliation(s)
- Sujin Hong
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hyeon-Geun Lee
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Won-Ki Huh
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea; Institute of Microbiology, Seoul National University, Seoul, Republic of Korea.
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Bechtold BJ, Lynch KD, Oyanna VO, Call MR, White LA, Graf TN, Oberlies NH, Clarke JD. Pharmacokinetic Effects of Different Models of Nonalcoholic Fatty Liver Disease in Transgenic Humanized OATP1B Mice. Drug Metab Dispos 2024; 52:355-367. [PMID: 38485280 PMCID: PMC11023818 DOI: 10.1124/dmd.123.001607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/05/2024] [Accepted: 03/07/2023] [Indexed: 03/21/2024] Open
Abstract
Organic anion transporting polypeptide (OATP) 1B1 and OATP1B3 (collectively, OATP1B) transporters encoded by the solute carrier organic anion transporter (SLCO) genes mediate uptake of multiple pharmaceutical compounds. Nonalcoholic steatohepatitis (NASH), a severe form of nonalcoholic fatty liver disease (NAFLD), decreases OATP1B abundance. This research characterized the pathologic and pharmacokinetics effects of three diet- and one chemical-induced NAFLD model in male and female humanized OATP1B mice, which comprises knock-out of rodent Oatp orthologs and insertion of human SLCO1B1 and SLCO1B3. Histopathology scoring demonstrated elevated steatosis and inflammation scores for all NAFLD-treatment groups. Female mice had minor changes in SLCO1B1 expression in two of the four NAFLD treatment groups, and pitavastatin (PIT) area under the concentration-time curve (AUC) increased in female mice in only one of the diet-induced models. OATP1B3 expression decreased in male and female mice in the chemical-induced NAFLD model, with a coinciding increase in PIT AUC, indicating the chemical-induced model may better replicate changes in OATP1B3 expression and OATP substrate disposition observed in NASH patients. This research also tested a reported multifactorial pharmacokinetic interaction between NAFLD and silymarin, an extract from milk thistle seeds with notable OATP-inhibitory effects. Males showed no change in PIT AUC, whereas female PIT AUC increased 1.55-fold from the diet alone and the 1.88-fold from the combination of diet with silymarin, suggesting that female mice are more sensitive to pharmacokinetic changes than male mice. Overall, the humanized OATP1B model should be used with caution for modeling NAFLD and multifactorial pharmacokinetic interactions. SIGNIFICANCE STATEMENT: Advanced stages of NAFLD cause decreased hepatic OATP1B abundance and increase systemic exposure to OATP substrates in human patients. The humanized OATP1B mouse strain may provide a clinically relevant model to recapitulate these observations and predict pharmacokinetic interactions in NAFLD. This research characterized three diet-induced and one drug-induced NAFLD model in a humanized OATP1B mouse model. Additionally, a multifactorial pharmacokinetic interaction was observed between silymarin and NAFLD.
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Affiliation(s)
- Baron J Bechtold
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
| | - Katherine D Lynch
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
| | - Victoria O Oyanna
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
| | - M Ridge Call
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
| | - Laura A White
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
| | - Tyler N Graf
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
| | - Nicholas H Oberlies
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
| | - John D Clarke
- Department of Pharmaceutical Sciences (B.J.B., K.D.L., V.O.O., M.R.C., J.D.C.) and Washington Animal Disease Diagnostic Laboratory (L.A.W.), Washington State University, Pullman, Washington; and Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina (T.N.G., N.H.O.)
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3
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Banerjee S, Ansari AA, Upadhyay SP, Mettman DJ, Hibdon JR, Quadir M, Ghosh P, Kambhampati A, Banerjee SK. Benefits and Pitfalls of a Glycosylation Inhibitor Tunicamycin in the Therapeutic Implication of Cancers. Cells 2024; 13:395. [PMID: 38474359 PMCID: PMC10930662 DOI: 10.3390/cells13050395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/12/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
The aberrant glycosylation is a hallmark of cancer progression and chemoresistance. It is also an immune therapeutic target for various cancers. Tunicamycin (TM) is one of the potent nucleoside antibiotics and an inhibitor of aberrant glycosylation in various cancer cells, including breast cancer, gastric cancer, and pancreatic cancer, parallel with the inhibition of cancer cell growth and progression of tumors. Like chemotherapies such as doxorubicin (DOX), 5'fluorouracil, etoposide, and cisplatin, TM induces the unfolded protein response (UPR) by blocking aberrant glycosylation. Consequently, stress is induced in the endoplasmic reticulum (ER) that promotes apoptosis. TM can thus be considered a potent antitumor drug in various cancers and may promote chemosensitivity. However, its lack of cell-type-specific cytotoxicity impedes its anticancer efficacy. In this review, we focus on recent advances in our understanding of the benefits and pitfalls of TM therapies in various cancers, including breast, colon, and pancreatic cancers, and discuss the mechanisms identified by which TM functions. Finally, we discuss the potential use of nano-based drug delivery systems to overcome non-specific toxicity and enhance the therapeutic efficacy of TM as a targeted therapy.
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Affiliation(s)
- Snigdha Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA; (A.A.A.); (S.P.U.); (D.J.M.); (J.R.H.); (A.K.)
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Affan A. Ansari
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA; (A.A.A.); (S.P.U.); (D.J.M.); (J.R.H.); (A.K.)
| | - Sunil P. Upadhyay
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA; (A.A.A.); (S.P.U.); (D.J.M.); (J.R.H.); (A.K.)
| | - Daniel J. Mettman
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA; (A.A.A.); (S.P.U.); (D.J.M.); (J.R.H.); (A.K.)
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Pathology Department, City VA Medical Center, Kansas City, MO 64128, USA
| | - Jamie R. Hibdon
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA; (A.A.A.); (S.P.U.); (D.J.M.); (J.R.H.); (A.K.)
| | - Mohiuddin Quadir
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND 58108, USA; (M.Q.); (P.G.)
| | - Pratyusha Ghosh
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND 58108, USA; (M.Q.); (P.G.)
| | - Anjali Kambhampati
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA; (A.A.A.); (S.P.U.); (D.J.M.); (J.R.H.); (A.K.)
| | - Sushanta K. Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA; (A.A.A.); (S.P.U.); (D.J.M.); (J.R.H.); (A.K.)
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
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Park SB, Cho GH, Park YE, Chun HS. Emodin, an Emerging Mycotoxin, Induces Endoplasmic Reticulum Stress-Related Hepatotoxicity through IRE1α-XBP1 Axis in HepG2 Cells. Toxins (Basel) 2023; 15:455. [PMID: 37505724 PMCID: PMC10467057 DOI: 10.3390/toxins15070455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/03/2023] [Accepted: 07/10/2023] [Indexed: 07/29/2023] Open
Abstract
Emodin, an emerging mycotoxin, is known to be hepatotoxic, but its mechanism remains unclear. We hypothesized that emodin could induce endoplasmic reticulum (ER) stress through the inositol-requiring enzyme 1 alpha (IRE1α)-X-box-binding protein 1 (XBP1) pathway and apoptosis, which are closely correlated and contribute to hepatotoxicity. To test this hypothesis, a novel IRE1α inhibitor, STF-083010, was used. An MTT assay was used to evaluate metabolic activity, and quantitative PCR and western blotting were used to investigate the gene and protein expression of ER stress or apoptosis-related markers. Apoptosis was evaluated with flow cytometry. Results showed that emodin induced cytotoxicity in a dose-dependent manner in HepG2 cells and upregulated the expression of binding immunoglobulin protein (BiP), C/EBP homologous protein (CHOP), IRE1α, spliced XBP1, the B-cell lymphoma 2 (Bcl-2)-associated X protein (Bax)/Bcl-2 ratio, and cleaved caspase-3. Cotreatment with emodin and STF-083010 led to the downregulation of BiP and upregulation of CHOP, the Bax/Bcl-2 ratio, and cleaved caspase-3 compared with single treatment with emodin. Furthermore, the apoptosis rate was increased in a dose-dependent manner with emodin treatment. Thus, emodin induced ER stress in HepG2 cells by activating the IRE1α-XBP1 axis and induced apoptosis, indicating that emodin can cause hepatotoxicity.
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Affiliation(s)
| | | | | | - Hyang Sook Chun
- School of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea; (S.B.P.); (G.H.C.); (Y.E.P.)
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Mubariz F, Saadin A, Lingenfelter N, Sarkar C, Banerjee A, Lipinski MM, Awad O. Deregulation of mTORC1-TFEB axis in human iPSC model of GBA1-associated Parkinson's disease. Front Neurosci 2023; 17:1152503. [PMID: 37332877 PMCID: PMC10272450 DOI: 10.3389/fnins.2023.1152503] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/02/2023] [Indexed: 06/20/2023] Open
Abstract
Mutations in the GBA1 gene are the single most frequent genetic risk factor for Parkinson's disease (PD). Neurodegenerative changes in GBA1-associated PD have been linked to the defective lysosomal clearance of autophagic substrates and aggregate-prone proteins. To elucidate novel mechanisms contributing to proteinopathy in PD, we investigated the effect of GBA1 mutations on the transcription factor EB (TFEB), the master regulator of the autophagy-lysosomal pathway (ALP). Using PD patients' induced-pluripotent stem cells (iPSCs), we examined TFEB activity and regulation of the ALP in dopaminergic neuronal cultures generated from iPSC lines harboring heterozygous GBA1 mutations and the CRISPR/Cas9-corrected isogenic controls. Our data showed a significant decrease in TFEB transcriptional activity and attenuated expression of many genes in the CLEAR network in GBA1 mutant neurons, but not in the isogenic gene-corrected cells. In PD neurons, we also detected increased activity of the mammalian target of rapamycin complex1 (mTORC1), the main upstream negative regulator of TFEB. Increased mTORC1 activity resulted in excess TFEB phosphorylation and decreased nuclear translocation. Pharmacological mTOR inhibition restored TFEB activity, decreased ER stress and reduced α-synuclein accumulation, indicating improvement of neuronal protiostasis. Moreover, treatment with the lipid substrate reducing compound Genz-123346, decreased mTORC1 activity and increased TFEB expression in the mutant neurons, suggesting that mTORC1-TFEB alterations are linked to the lipid substrate accumulation. Our study unveils a new mechanism contributing to PD susceptibility by GBA1 mutations in which deregulation of the mTORC1-TFEB axis mediates ALP dysfunction and subsequent proteinopathy. It also indicates that pharmacological restoration of TFEB activity could be a promising therapeutic approach in GBA1-associated neurodegeneration.
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Affiliation(s)
- Fahad Mubariz
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Afsoon Saadin
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Nicholas Lingenfelter
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Chinmoy Sarkar
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Aditi Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Marta M. Lipinski
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Ola Awad
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, United States
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Fu W, Im YG, Kim B, Kim OS, Yang Y, Song J, Liu D, Zhu S, Kang JS, Kim O. 625 nm Light Irradiation Prevented MC3T3-E1 Cells from Accumulation of Misfolded Proteins via ROS and ATP Production. Int J Mol Sci 2023; 24:ijms24119257. [PMID: 37298212 DOI: 10.3390/ijms24119257] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Osteoblasts must acquire a considerable capacity for folding unfolded and misfolded proteins (MPs) to produce large amounts of extracellular matrix proteins and maintain bone homeostasis. MP accumulation contributes to cellular apoptosis and bone disorders. Photobiomodulation therapy has been used to treat bone diseases, but the effects of decreasing MPs with photobiomodulation remain unclear. In this study, we explored the efficacy of 625 nm light-emitting diode irradiation (LEDI) to reduce MPs in tunicamycin (TM) induced-MC3T3-E1 cells. Binding immunoglobulin protein (BiP), an adenosine triphosphate (ATP)-dependent chaperone, is used to evaluate the capacity of folding MPs. The results revealed that pretreatment with 625 nm LEDI (Pre-IR) induced reactive oxygen species (ROS) production, leading to the increased chaperone BiP through the inositol-requiring enzyme 1 (IRE1)/X-box binding protein 1s (XBP-1s) pathway, and then restoration of collagen type I (COL-I) and osteopontin (OPN) expression relieving cell apoptosis. Furthermore, the translocation of BiP into the endoplasmic reticulum (ER) lumen might be followed by a high level of ATP production. Taken together, these results suggest that Pre-IR could be beneficial to prevent MP accumulation through ROS and ATP in TM-induced MC3T3-E1cells.
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Affiliation(s)
- Wenqi Fu
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Yeong-Gwan Im
- Department of Oral Medicine, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Byunggook Kim
- Department of Oral Medicine, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Ok-Su Kim
- Department of Periodontology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Ying Yang
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jianan Song
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Danyang Liu
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Siyu Zhu
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jae-Seok Kang
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Okjoon Kim
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea
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Hung YW, Ouyang C, Ping X, Qi Y, Wang YC, Kung HJ, Ann DK. Extracellular arginine availability modulates eIF2α O-GlcNAcylation and heme oxygenase 1 translation for cellular homeostasis. J Biomed Sci 2023; 30:32. [PMID: 37217939 PMCID: PMC10201738 DOI: 10.1186/s12929-023-00924-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 05/04/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Nutrient limitations often lead to metabolic stress during cancer initiation and progression. To combat this stress, the enzyme heme oxygenase 1 (HMOX1, commonly known as HO-1) is thought to play a key role as an antioxidant. However, there is a discrepancy between the level of HO-1 mRNA and its protein, particularly in cells under stress. O-linked β-N-acetylglucosamine (O-GlcNAc) modification of proteins (O-GlcNAcylation) is a recently discovered cellular signaling mechanism that rivals phosphorylation in many proteins, including eukaryote translation initiation factors (eIFs). The mechanism by which eIF2α O-GlcNAcylation regulates translation of HO-1 during extracellular arginine shortage (ArgS) remains unclear. METHODS We used mass spectrometry to study the relationship between O-GlcNAcylation and Arg availability in breast cancer BT-549 cells. We validated eIF2α O-GlcNAcylation through site-specific mutagenesis and azido sugar N-azidoacetylglucosamine-tetraacylated labeling. We then evaluated the effect of eIF2α O-GlcNAcylation on cell recovery, migration, accumulation of reactive oxygen species (ROS), and metabolic labeling during protein synthesis under different Arg conditions. RESULTS Our research identified eIF2α, eIF2β, and eIF2γ, as key O-GlcNAcylation targets in the absence of Arg. We found that O-GlcNAcylation of eIF2α plays a crucial role in regulating antioxidant defense by suppressing the translation of the enzyme HO-1 during Arg limitation. Our study showed that O-GlcNAcylation of eIF2α at specific sites suppresses HO-1 translation despite high levels of HMOX1 transcription. We also found that eliminating eIF2α O-GlcNAcylation through site-specific mutagenesis improves cell recovery, migration, and reduces ROS accumulation by restoring HO-1 translation. However, the level of the metabolic stress effector ATF4 is not affected by eIF2α O-GlcNAcylation under these conditions. CONCLUSIONS Overall, this study provides new insights into how ArgS fine-tunes the control of translation initiation and antioxidant defense through eIF2α O-GlcNAcylation, which has potential biological and clinical implications.
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Affiliation(s)
- Yu-Wen Hung
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010-3000, USA
- Irell & Manella Graduate School of Biological Sciences, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - Ching Ouyang
- Department of Computational and Quantitative Medicine, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - Xiaoli Ping
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010-3000, USA
| | - Yue Qi
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010-3000, USA
| | - Yi-Chang Wang
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010-3000, USA
| | - Hsing-Jien Kung
- Cancer Center, School of Medicine, University of California, Davis, CA, 95817, USA
| | - David K Ann
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, City of Hope Comprehensive Cancer Center, Duarte, CA, 91010-3000, USA.
- Irell & Manella Graduate School of Biological Sciences, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA.
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8
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Banerjee DK. BIRTH OF A GLYCOTHERAPY FOR BREAST CANCER. TRENDS IN CARBOHYDRATE RESEARCH 2023; 15:25-37. [PMID: 38362162 PMCID: PMC10869124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Breast cancer is the most common malignant disease in women and is worldwide. The incidence rate of women's breast cancer in 2020 was 2,261,419 and 2022 estimates diagnosing 1,918,030 cases. The disease is heterogeneous and the pathogenesis of breast cancer still remains unclear. Much progress has been made in early detection and better treatment to improve survival. Unfortunately, the current treatment strategies destroy the patient's quality of life. The patients develop drug resistance, exhibit severe side effects, and not afford the cost creates anxiety among the patients, families, and friends. In addition, a considerable number of patients relapse as a result of organ metastasis, e.g., the triple-negative breast cancer (TNBC, ER-/PR-HER2-). The 5-year survival rate of patients who recurred with distant metastasis is less than 20%. More than half a million women worldwide still suffer from metastatic breast cancer annually, and 90% of their deaths could be attributed to metastasis. One of the reasons for the failure of cancer therapeutics is the approaches did not consider the cancer holistically. All breast cancer cells and their micro environmental capillary endothelial cells express asparagine-linked (N-linked) glycoproteins. We have tested a biologic and a small molecule, Tunicamycin-P (P = pure N-glycosylation inhibitor) to interfere with the protein N-glycosylation pathway in the endoplasmic reticulum (ER) by specifically blocking the catalytic activity of N-acetylglusosaminyl 1-phosphate transferase (GPT) activity. The outcome has been quantitative inhibition of in vitro and in vivo angiogenesis and the breast tumor progression of multiple subtypes in pre-clinical mouse models with "zero" toxicity. We have, therefore, concluded that Tunicamycin-P is expected to supersede the current therapeutics and become a Glycotherapy treating breast cancer of all subtypes.
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Affiliation(s)
- Dipak K Banerjee
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA
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Fang H, Hu L, Chen Q, Geng S, Qiu K, Wang C, Hao M, Tian Z, Chen H, Liu L, Guan JL, Chen Y, Dong L, Guo Z, He W, Diao J. An ER-targeted "reserve-release" fluorogen for topological quantification of reticulophagy. Biomaterials 2023; 292:121929. [PMID: 36455487 DOI: 10.1016/j.biomaterials.2022.121929] [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: 03/27/2022] [Revised: 11/09/2022] [Accepted: 11/21/2022] [Indexed: 11/23/2022]
Abstract
The endoplasmic reticulum's (ER) dynamic nature, essential for maintaining cellular homeostasis, can be influenced by stress-induced damage, which can be assessed by examining the morphology of ER dynamics and, more locally, ER properties such as hydrophobicity, viscosity, and polarity. Although numerous ER-specific chemical probes have been developed to monitor the ER's physical and chemical parameters, the quantitative detection and super-resolution imaging of its local hydrophobicity have yet to be explored. Here, we describe a photostable ER-targeted probe with high signal-to-noise ratio for super-resolution imaging that can specifically respond to changes in ER hydrophobicity under stress based on a "reserve-release" mechanism. The probe shows an excellent ability to target ER over commercial ER dyes and can be used to track local changes of hydrophobicity by fluorescence intensity and morphology during the selective autophagy of ER (i.e., reticulophagy). By correlating the level and location of ER damage with the distribution of fluorescence intensity, we were able to assess reticulophagy at the subcellular level. Beyond that, we developed a topological analytical tool adaptable to any ER probe for detecting structural changes in ER and thus quantitatively identifying reticulophagy. The algorithm-assisted tool can also be adapted to a wide range of molecular probes and organelles. Altogether, the new probe and analytical strategy described here show promise for the quantitative detection and analysis of subtle ER damage and stress.
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Affiliation(s)
- Hongbao Fang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China; Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA; School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Lianting Hu
- Medical Big Data Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China; Guangdong Cardiovascular Institute, Guangzhou, 510080, China; School of Information Management, Wuhan University, Wuhan 430072, China
| | - Qixin Chen
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA; Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Shanshan Geng
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Kangqiang Qiu
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Chengjun Wang
- Sinopec Shengli Petroleum Engineering Limited Company, Dongying, 257000, China
| | - Mingang Hao
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Zhiqi Tian
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Huimin Chen
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Lei Liu
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Jun-Lin Guan
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Yuncong Chen
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Lei Dong
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Zijian Guo
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Weijiang He
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Jiajie Diao
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
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10
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Brombach C, Tong W, Giussani DA. Maternal obesity: new placental paradigms unfolded. Trends Mol Med 2022; 28:823-835. [PMID: 35760668 DOI: 10.1016/j.molmed.2022.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 01/24/2023]
Abstract
The prevalence of maternal obesity is increasing at an alarming rate, and is providing a major challenge for obstetric practice. Adverse effects on maternal and fetal health are mediated by complex interactions between metabolic, inflammatory, and oxidative stress signaling in the placenta. Endoplasmic reticulum (ER) stress and activation of the unfolded protein response (UPR) are common downstream pathways of cell stress, and there is evidence that this conserved homeostatic response may be a key mediator in the pathogenesis of placental dysfunction. We summarize the current literature on the placental cellular and molecular changes that occur in obese women. A special focus is cast onto placental ER stress in obese pregnancy, which may provide a novel link for future investigation.
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Affiliation(s)
| | - Wen Tong
- Department of Physiology, Development, and Neuroscience, University of Cambridge, Cambridge CB2 3EL, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Cambridge Strategic Research Initiative in Reproduction, Cambridge CB2 3EL, Cambridge UK.
| | - Dino A Giussani
- Department of Physiology, Development, and Neuroscience, University of Cambridge, Cambridge CB2 3EL, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Cambridge Strategic Research Initiative in Reproduction, Cambridge CB2 3EL, Cambridge UK; Cambridge Cardiovascular Centre for Research Excellence, Cambridge CB2 0QQ, UK.
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11
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Zhang M, Zheng J, Guo J, Zhang Q, Du J, Zhao X, Wang Z, Liao Q. SIA-IgG confers poor prognosis and represents a novel therapeutic target in breast cancer. Bioengineered 2022; 13:10072-10087. [PMID: 35473571 PMCID: PMC9208471 DOI: 10.1080/21655979.2022.2063593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The incidence rate of breast cancer is the highest in the world, and major problem in the clinical treatment is the therapy resistance of breast cancer stem cells (CSCs). Thus, new therapeutic approaches targeting breast CSCs are needed. Our previous study demonstrated cancer-derived sialylated IgG (SIA-IgG) is highly expressed in cancer cells with stem/progenitor features. Furthermore, a high frequency of SIA-IgG in breast cancer tissue predicted metastasis and correlated with poor prognosis factors, and depletion of IgG in breast cancer leads to lower malignancy of cancer cells, suggesting SIA-IgG could be a potential therapeutic target in breast cancer. In this study, we first investigated the relationship of SIA-IgG expression with the clinicopathological characteristics and clinical prognosis of breast carcinoma patients, and the data confirmed that the expression of SIA-IgG confers poor prognosis in breast cancer. Successively, by using a monoclonal antibody specifically against SIA-IgG, we targeted SIA-IgG on the surface of MDA-MB-231 cells and detected their functional changes, and the results suggested SIA-IgG to be a promising antibody therapeutic target in breast cancer. In addition, we explored the mechanism of action at the molecular level of SIA-IgG on breast cancer cell, the findings suggest that SIA-IgG promotes proliferation, metastasis, and invasion of breast cancer cells through the Wnt/β-catenin signaling pathway. Developing therapeutic antibody needs effective therapeutic target, and the antibody should better be a monoclonal antibody with high affinity and high specificity. This study provides a potential prognostic marker and a novel therapeutic target for breast cancer.
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Affiliation(s)
- Man Zhang
- Department of Immunology, Guilin Medical University, Guilin, Guangxi province, China
| | - Jinhua Zheng
- Department of Pathology, Guilin Medical University Affiliated Hospital, Guilin, Guangxi province, China
| | - Junying Guo
- Department of Immunology, Guilin Medical University, Guilin, Guangxi province, China
| | - Qiujin Zhang
- Department of Immunology, Guilin Medical University, Guilin, Guangxi province, China
| | - Juan Du
- Department of Immunology, Guilin Medical University, Guilin, Guangxi province, China
| | - Xiangfeng Zhao
- Department of Immunology, Guilin Medical University, Guilin, Guangxi province, China
| | - Zhihua Wang
- Department of Immunology, Guilin Medical University, Guilin, Guangxi province, China
| | - Qinyuan Liao
- Department of Immunology, Guilin Medical University, Guilin, Guangxi province, China
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12
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Costa Catta-Preta CM, Cézar de Azevedo-Martins A, de Souza W, Motta MCM. Effect of the endoplasmic reticulum stressor tunicamycin in Angomonas deanei heat-shock protein expression and on the association with the endosymbiotic bacterium. Exp Cell Res 2022; 417:113162. [PMID: 35460679 DOI: 10.1016/j.yexcr.2022.113162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 04/04/2022] [Accepted: 04/16/2022] [Indexed: 01/01/2023]
Abstract
The endoplasmic reticulum (ER) presents unique properties to establishing bacterium symbiosis in eukaryotic cells since it synthesizes and glycosylates essential molecules like proteins and lipids. Tunicamycin (TM) is an antibiotic that inhibits the first step in the N-linked glycosylation in eukaryotes and has been used as an ER stress inducer to activate the Unfolded Protein Response (UPR). Mutualistic symbiosis in trypanosomatids is characterized by structural adaptations and intense metabolic exchanges, thus we investigated the effects of TM in the association between Angomonas deanei and its symbiotic bacterium, through ultrastructural and proteomic approaches. Cells treated with the inhibitor showed a decrease in proliferation, enlargement of the ER and Golgi cisternae and an increased distance between the symbiont and the ER. TM proved to be an important tool to better understand ER stress in trypanosomatids, since changes in protein composition were observed in the host protozoan, especially the expression of the Hsp90 chaperone. Furthermore, data obtained indicates the importance of the ER for the adaptation and maintenance of symbiotic associations between prokaryotes and eukaryotes, considering that this organelle has recognized importance in the biogenesis and division of cell structures.
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Affiliation(s)
- Carolina Moura Costa Catta-Preta
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21491-590, Rio de Janeiro, RJ, Brazil
| | - Allan Cézar de Azevedo-Martins
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21491-590, Rio de Janeiro, RJ, Brazil
| | - Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21491-590, Rio de Janeiro, RJ, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, RJ, Brazil
| | - Maria Cristina M Motta
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21491-590, Rio de Janeiro, RJ, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, RJ, Brazil.
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13
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Banerjee DK, Seijo Lebrón A, Baksi K. Glycotherapy: A New Paradigm in Breast Cancer Research. Biomolecules 2022; 12:biom12040487. [PMID: 35454076 PMCID: PMC9026886 DOI: 10.3390/biom12040487] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/08/2022] [Accepted: 03/14/2022] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is an ancient disease recognized first by the Egyptians as early as 1600 BC. The first cancer-causing gene in a chicken tumor virus was found in 1970. The United States signed the National Cancer Act in 1971, authorizing federal funding for cancer research. Irrespective of multi-disciplinary approaches, diverting a great deal of public and private resources, breast cancer remains at the forefront of human diseases, affecting as many as one in eight women during their lifetime. Because of overarching challenges and changes in the breast cancer landscape, five-year disease-free survival is no longer considered adequate. The absence of a cure, and the presence of drug resistance, severe side effects, and destruction of the patient’s quality of life, as well as the fact that therapy is often expensive, making it unaffordable to many, have created anxiety among patients, families, and friends. One of the reasons for the failure of cancer therapeutics is that the approaches do not consider cancer holistically. Characteristically, all breast cancer cells and their microenvironmental capillary endothelial cells express asparagine-linked (N-linked) glycoproteins with diverse structures. We tested a small biological molecule, Tunicamycin, that blocks a specific step of the protein N-glycosylation pathway in the endoplasmic reticulum (ER), i.e., the catalytic activity of N-acetylglusosaminyl 1-phosphate transferase (GPT). The outcome was overwhelmingly exciting. Tunicamycin quantitatively inhibits angiogenesis in vitro and in vivo, and inhibits the breast tumor progression of multiple subtypes in pre-clinical mouse models with “zero” toxicity. Mechanistic details support ER stress-induced unfolded protein response (upr) signaling as the cause for the apoptotic death of both cancer and the microvascular endothelial cells. Additionally, it interferes with Wnt signaling. We therefore conclude that Tunicamycin can be expected to supersede the current therapeutics to become a glycotherapy for treating breast cancer of all subtypes.
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Affiliation(s)
- Dipak K. Banerjee
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA;
- Correspondence:
| | - Arelis Seijo Lebrón
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA;
| | - Krishna Baksi
- Department of Anatomy and Cell Biology, School of Medicine, Universidad Central del Caribe, Bayamon, PR 00960-3001, USA;
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14
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Bi F, Jiang Z, Park W, Hartwich TMP, Ge Z, Chong KY, Yang K, Morrison MJ, Kim D, Kim J, Zhang W, Kril LM, Watt DS, Liu C, Yang-Hartwich Y. A Benzenesulfonamide-Based Mitochondrial Uncoupler Induces Endoplasmic Reticulum Stress and Immunogenic Cell Death in Epithelial Ovarian Cancer. Mol Cancer Ther 2021; 20:2398-2409. [PMID: 34625503 PMCID: PMC8643344 DOI: 10.1158/1535-7163.mct-21-0396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/04/2021] [Accepted: 09/30/2021] [Indexed: 11/16/2022]
Abstract
Epithelial ovarian cancer (EOC) is the leading cause of death from gynecologic malignancies and requires new therapeutic strategies to improve clinical outcomes. EOC metastasizes in the abdominal cavity through dissemination in the peritoneal fluid and ascites, efficiently adapt to the nutrient-deprived microenvironment, and resist current chemotherapeutic agents. Accumulating evidence suggests that mitochondrial oxidative phosphorylation is critical for the adaptation of EOC cells to this otherwise hostile microenvironment. Although chemical mitochondrial uncouplers can impair mitochondrial functions and thereby target multiple, essential pathways for cancer cell proliferation, traditional mitochondria uncouplers often cause toxicity that precludes their clinical application. In this study, we demonstrated that a mitochondrial uncoupler, specifically 2,5-dichloro-N-(4-nitronaphthalen-1-yl)benzenesulfonamide, hereinafter named Y3, was an antineoplastic agent in ovarian cancer models. Y3 treatment activated AMP-activated protein kinase and resulted in the activation of endoplasmic reticulum stress sensors as well as growth inhibition and apoptosis in ovarian cancer cells in vitro Y3 was well tolerated in vivo and effectively suppressed tumor progression in three mouse models of EOC, and Y3 also induced immunogenic cell death of cancer cells that involved the release of damage-associated molecular patterns and the activation of antitumor adaptive immune responses. These findings suggest that mitochondrial uncouplers hold promise in developing new anticancer therapies that delay tumor progression and protect patients with ovarian cancer against relapse.
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Affiliation(s)
- Fangfang Bi
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
- Sheng Jing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ziyan Jiang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wonmin Park
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas
| | - Tobias M P Hartwich
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Zhiping Ge
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Kay Y Chong
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Kevin Yang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Madeline J Morrison
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Dongin Kim
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jaeyeon Kim
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana
- Indiana University Melvin and Bren Simon Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana
| | - Wen Zhang
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, Kentucky
- Lucille Parker Markey Cancer Center, University of Kentucky Health Care, Lexington, Kentucky
| | - Liliia M Kril
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, Kentucky
- Lucille Parker Markey Cancer Center, University of Kentucky Health Care, Lexington, Kentucky
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky
| | - David S Watt
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, Kentucky
- Lucille Parker Markey Cancer Center, University of Kentucky Health Care, Lexington, Kentucky
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky
| | - Chunming Liu
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, Kentucky.
- Lucille Parker Markey Cancer Center, University of Kentucky Health Care, Lexington, Kentucky
| | - Yang Yang-Hartwich
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut.
- Yale Cancer Center, Yale School of Medicine, New Haven, Connecticut
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15
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Wang LT, Lin MH, Liu KY, Chiou SS, Wang SN, Chai CY, Tseng LW, Chiou HYC, Wang HC, Yokoyama KK, Hsu SH, Huang SK. WLS/wntless is essential in controlling dendritic cell homeostasis via a WNT signaling-independent mechanism. Autophagy 2021; 17:4202-4217. [PMID: 33853474 PMCID: PMC8726611 DOI: 10.1080/15548627.2021.1907516] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 01/19/2023] Open
Abstract
We propose that beyond its role in WNT secretion, WLS/GPR177 (wntless, WNT ligand secretion mediator) acts as an essential regulator controlling protein glycosylation, endoplasmic reticulum (ER) homeostasis, and dendritic cell (DC)-mediated immunity. WLS deficiency in bone marrow-derived DCs (BMDCs) resulted in poor growth and an inability to mount cytokine and T-cell responses in vitro, phenotypes that were irreversible by the addition of exogenous WNTs. In fact, WLS was discovered to integrate a protein complex in N-glycan-dependent and WLS domain-selective manners, comprising ER stress sensors and lectin chaperones. WLS deficiency in BMDCs led to increased ER stress response and macroautophagy/autophagy, decreased calcium efflux from the ER, and the loss of CALR (calreticulin)-CANX (calnexin) cycle, and hence protein hypo-glycosylation. Consequently, DC-specific wls-null mice were unable to develop both Th1-, Th2- and Th17-associated responses in the respective autoimmune and allergic disease models. These results suggest that WLS is a critical chaperone in maintaining ER homeostasis, glycoprotein quality control and calcium dynamics in DCs.Abbreviations: ATF6: activating transcription factor 6; ATG5: autophagy related 5; ATG12: autophagy related 12; ATG16L1: autophagy related 16 like 1; ATP2A1/SERCA1: ATPase sarcoplasmic/endoplasmic reticulum Ca2+ transporting 1; BALF: bronchoalveolar lavage fluid; BFA: brefeldin A; BMDC: bone marrow-derived dendritic cell; CALR: calreticulin; CANX: calnexin; CCL2/MCP-1: C-C motif chemokine ligand 2; CNS: central nervous system; CT: C-terminal domain; DTT: dithiothreitol; DNAJB9/ERDJ4: DnaJ heat shock protein family (Hsp40) member B9; EAE: experimental autoimmune encephalomyelitis; EIF2A/eIF2α: eukaryotic translation initiation factor 2A; EIF2AK3/PERK: eukaryotic translation initiation factor 2 alpha kinase 3; ERN1/IRE1: endoplasmic reticulum (ER) to nucleus signaling 1; GFP: green fluorescent protein; HSPA5/GRP78/BiP: heat shock protein A5; IFNA: interferon alpha; IFNAR1: interferon alpha and beta receptor subunit 1; IFNB: interferon beta; IFNG/INFγ: interferon gamma; IFNGR2: interferon gamma receptor 2; IL6: interleukin 6; IL10: interleukin 10; IL12A: interleukin 12A; IL23A: interleukin 23 subunit alpha; ITGAX/CD11c: integrin subunit alpha X; ITPR1/InsP3R1: inositol 1,4,5-trisphosphate receptor type 1; MAP1LC3B/LC3B: microtubule associated protein 1 light chain 3 beta; OVA: ovalbumin; PIK3C3/VPS34: phosphatidylinositol 3-kinase catalytic subunit type 3; PLF: predicted lipocalin fold; PPP1R15A/GADD34: protein phosphatase 1 regulatory subunit 15A; RYR1/RyanR1: ryanodine receptor 1, skeletal muscle; SD: signal domain; TGFB/TGF-β: transforming growth factor beta family; Th1: T helper cell type 1; Th17: T helper cell type 17; TM: tunicamycin; TNF/TNF-α: tumor necrosis factor; UPR: unfolded protein response; WLS/wntless: WNT ligand secretion mediator.
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Affiliation(s)
- Li-Ting Wang
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Ming-Hong Lin
- D Department of Microbiology and Immunology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kwei-Yan Liu
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Shyh-Shin Chiou
- Department of Pathology, Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Hematology-Oncology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center of Applied Genomics, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shen-Nien Wang
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of General and Digestive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Surgery, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chee-Yin Chai
- Department of Pathology, Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Li-Wen Tseng
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsin-Ying Clair Chiou
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Medical Education and Research Center, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsueh-Chun Wang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Kazunari K. Yokoyama
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center of Stem Cell Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shih-Hsien Hsu
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center of Applied Genomics, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shau-Ku Huang
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
- Department of Medicine, Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, USA
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16
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Glaberman S, Bulls SE, Vazquez JM, Chiari Y, Lynch VJ. Concurrent evolution of anti-aging gene duplications and cellular phenotypes in long-lived turtles. Genome Biol Evol 2021; 13:6430984. [PMID: 34792580 PMCID: PMC8688777 DOI: 10.1093/gbe/evab244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2021] [Indexed: 11/23/2022] Open
Abstract
There are many costs associated with increased body size and longevity in animals, including the accumulation of genotoxic and cytotoxic damage that comes with having more cells and living longer. Yet, some species have overcome these barriers and have evolved remarkably large body sizes and long lifespans, sometimes within a narrow window of evolutionary time. Here, we demonstrate through phylogenetic comparative analysis that multiple turtle lineages, including Galapagos giant tortoises, concurrently evolved large bodies, long lifespans, and reduced cancer risk. We also show through comparative genomic analysis that Galapagos giant tortoises have gene duplications related to longevity and tumor suppression. To examine the molecular basis underlying increased body size and lifespan in turtles, we treated cell lines from multiple species, including Galapagos giant tortoises, with drugs that induce different types of cytotoxic stress. Our results indicate that turtle cells, in general, are resistant to oxidative stress related to aging, whereas Galapagos giant tortoise cells, specifically, are sensitive to endoplasmic reticulum stress, which may give this species an ability to mitigate the effects of cellular stress associated with increased body size and longevity.
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Affiliation(s)
- Scott Glaberman
- Department of Environmental Science and Policy, George Mason University, Fairfax, VA, USA.,Department of Biology, University of South Alabama, Mobile, AL, USA
| | | | - Juan Manuel Vazquez
- Department of Integrative Biology, University of California - Berkeley, Berkeley, CA, USA
| | - Ylenia Chiari
- Department of Biology, George Mason University, Fairfax, VA, USA
| | - Vincent J Lynch
- Department of Biological Sciences, University at Buffalo, SUNY, Buffalo, NY, USA
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17
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Ekin U, Yuzugullu H, Ozen C, Korhan P, Bagirsakci E, Yilmaz F, Yuzugullu OG, Uzuner H, Alotaibi H, Kirmizibayrak PB, Atabey N, Karakülah G, Ozturk M. Evaluation of ATAD2 as a Potential Target in Hepatocellular Carcinoma. J Gastrointest Cancer 2021; 52:1356-1369. [PMID: 34738187 DOI: 10.1007/s12029-021-00732-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2021] [Indexed: 01/15/2023]
Abstract
PURPOSE Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death worldwide with lack of effective systemic chemotherapy. In this study, we aimed to evaluate the value of ATPase family AAA domain-containing protein 2 (ATAD2) as a biomarker and potential therapeutic target for HCC. METHODS The expression of ATAD2 was tested in different HCC patient cohorts by immunohistochemistry and comparative transcriptional analysis. The co-expression of ATAD2 and proliferation markers was compared during liver regeneration and malignancy with different bioinformatics tools. The cellular effects of ATAD2 inactivation in liver malignancy was tested on cell cycle, apoptosis, and colony formation ability as well as tumor formation using RNA interference. The genes affected by ATAD2 inactivation in three different HCC cell lines were identified by global gene expression profiling and bioinformatics tools. RESULTS ATAD2 overexpression is closely correlated with HCC tumor stage. There was gradual increase from dysplasia, well-differentiated and poorly-differentiated HCC, respectively. We also observed transient upregulation of ATAD2 expression during rat liver regeneration in parallel to changes in Ki-67 expression. ATAD2 knockdown resulted in apoptosis and decreased cell survival in vitro and decreased tumor formation in some HCC cell lines. However, three other HCC cell lines tested were not affected. Similarly, gene expression response to ATAD2 inactivation in different HCC cell lines was highly heterogeneous. CONCLUSIONS ATAD2 is a potential proliferation marker for liver regeneration and HCC. It may also serve as a therapeutic target despite heterogeneous response of malignant cells.
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Affiliation(s)
- Umut Ekin
- Izmir Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Haluk Yuzugullu
- Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey.,Institut Albert Bonniot, Grenoble, France
| | - Cigdem Ozen
- Izmir Biomedicine and Genome Center, Izmir, Turkey.,Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey.,Present Address: Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Bioinformatics group, Dresden, Germany
| | - Peyda Korhan
- Izmir Biomedicine and Genome Center, Izmir, Turkey
| | - Ezgi Bagirsakci
- Izmir Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Funda Yilmaz
- Department of Pathology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Ozge Gursoy Yuzugullu
- Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey.,Institut Albert Bonniot, Grenoble, France
| | - Hamdiye Uzuner
- Izmir Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Hani Alotaibi
- Izmir Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | | | - Nese Atabey
- Izmir Biomedicine and Genome Center, Izmir, Turkey.,Faculty of Medicine, Izmir Tinaztepe University, Izmir, Turkey
| | - Gökhan Karakülah
- Izmir Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Mehmet Ozturk
- Izmir Biomedicine and Genome Center, Izmir, Turkey. .,Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey. .,Institut Albert Bonniot, Grenoble, France. .,Faculty of Medicine, Izmir Tinaztepe University, Izmir, Turkey.
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18
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Ohno O, Sato K, Honma R, Chiba R, Matsuno K. Antiapoptotic activity of methyl (3R,4E,6Z,15E)-3-hydroxyoctadecatrienoate in human cervical carcinoma HeLa cells. Biosci Biotechnol Biochem 2021; 85:228-232. [PMID: 33604632 DOI: 10.1093/bbb/zbaa006] [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: 07/18/2020] [Accepted: 09/09/2020] [Indexed: 11/13/2022]
Abstract
Inhibitors of thapsigargin-induced cell death in human cervical carcinoma HeLa cells were screened among the metabolites of marine organisms. The MeOH extract of the cyanobacterium Rivularia sp. was found to exhibit inhibitory activity. Column chromatography purification was used to isolate methyl (3R,4E,6Z,15E)-3-hydroxyoctadecatrienoate (MHO) as the active compound. MHO was determined to inhibit apoptotic stimuli-induced cell death in HeLa cells.
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Affiliation(s)
- Osamu Ohno
- Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo, Japan
| | - Keigo Sato
- Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo, Japan
| | - Ryo Honma
- Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo, Japan
| | - Ruri Chiba
- Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo, Japan
| | - Kenji Matsuno
- Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo, Japan
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19
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Autophagy Induction by Trichodermic Acid Attenuates Endoplasmic Reticulum Stress-Mediated Apoptosis in Colon Cancer Cells. Int J Mol Sci 2021; 22:ijms22115566. [PMID: 34070303 PMCID: PMC8197497 DOI: 10.3390/ijms22115566] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/14/2021] [Accepted: 05/19/2021] [Indexed: 12/26/2022] Open
Abstract
Colorectal cancer (CRC) is the third leading malignant tumor in the world, which has high morbidity and mortality. In this study we found that trichodermic acid (TDA), a secondary metabolite isolated from the plant endophytic fungus Penicillium ochrochloronthe with a variety of biological and pharmacological activities, exhibited the antitumor effects on colorectal cancer cells in vitro and in vivo. Our results showed that TDA inhibited the proliferation of colon cancer cells in a dose-dependent manner. TDA induces sustained endoplasmic reticulum stress, which triggers apoptosis through IRE1α/XBP1 and PERK/ATF4/CHOP pathways. In addition, we found that TDA mediated endoplasmic reticulum stress also induces autophagy as a protective mechanism. Moreover, combined treatment of TDA with autophagy inhibitors significantly enhanced its anticancer effect. In conclusion, our results indicated that TDA can induce ER stress and autophagy mediated apoptosis, suggesting that targeting ER stress and autophagy may be an effective strategy for the treatment of CRC.
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20
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Activation of PERK-ATF4-CHOP pathway as a novel therapeutic approach for efficient elimination of HTLV-1-infected cells. Blood Adv 2021; 4:1845-1858. [PMID: 32369565 DOI: 10.1182/bloodadvances.2019001139] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 03/26/2020] [Indexed: 02/06/2023] Open
Abstract
Patients with adult T-cell leukemia (ATL) exhibit a poor prognosis and overall survival rate when treated with standard chemotherapy, highlighting the continued requirement for the development of novel safe and effective therapies for human T-cell leukemia virus type 1 (HTLV-1)-related diseases. In this study, we demonstrated that MK-2048, a second-generation HIV-1 integrase (IN) inhibitor, potently and selectively kills HTLV-1-infected cells. Differential transcriptome profiling revealed significantly elevated levels of gene expression of the unfolded protein response (UPR) PKR-like ER kinase (PERK) signaling pathway in ATL cell lines following MK-2048 treatment. We also identified a significant downregulation in glucose regulated protein 78 (GRP78), a master regulator of the UPR in the CD4+CADM1+ HTLV-1-infected cell population of primary HTLV-1 carrier peripheral blood mononuclear cells (PBMCs) (n = 9), suggesting that HTLV-1-infected cells are hypersensitive to endoplasmic reticulum (ER) stress-mediated apoptosis. MK-2048 efficiently reduced proviral loads in primary HTLV-1 carrier PBMCs (n = 4), but had no effect on the total numbers of these cells, indicating that MK-2048 does not affect the proliferation of HTLV-1-uninfected PBMCs. MK-2048 specifically activated the ER stress-related proapoptotic gene, DNA damage-inducible transcript 3 protein (DDIT3), also known as C/EBP homologous protein (CHOP), in HTLV-1-infected but not uninfected cells of HTLV-1-carrier PBMCs. Our findings demonstrated that MK-2048 selectively induces HTLV-1-infected cell apoptosis via the activation of the UPR. This novel regulatory mechanism of the HIV IN inhibitor MK-2048 in HTLV-1-infected cells provides a promising prophylactic and therapeutic target for HTLV-1-related diseases including ATL.
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21
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Taylor SKB, Minhas MH, Tong J, Selvaganapathy PR, Mishra RK, Gupta BP. C. elegans electrotaxis behavior is modulated by heat shock response and unfolded protein response signaling pathways. Sci Rep 2021; 11:3115. [PMID: 33542359 PMCID: PMC7862228 DOI: 10.1038/s41598-021-82466-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 01/18/2021] [Indexed: 01/30/2023] Open
Abstract
The nematode C. elegans is a leading model to investigate the mechanisms of stress-induced behavioral changes coupled with biochemical mechanisms. Our group has previously characterized C. elegans behavior using a microfluidic-based electrotaxis device, and showed that worms display directional motion in the presence of a mild electric field. In this study, we describe the effects of various forms of genetic and environmental stress on the electrotactic movement of animals. Using exposure to chemicals, such as paraquat and tunicamycin, as well as mitochondrial and endoplasmic reticulum (ER) unfolded protein response (UPR) mutants, we demonstrate that chronic stress causes abnormal movement. Additionally, we report that pqe-1 (human RNA exonuclease 1 homolog) is necessary for the maintenance of multiple stress response signaling and electrotaxis behavior of animals. Further, exposure of C. elegans to several environmental stress-inducing conditions revealed that while chronic heat and dietary restriction caused electrotaxis speed deficits due to prolonged stress, daily exercise had a beneficial effect on the animals, likely due to improved muscle health and transient activation of UPR. Overall, these data demonstrate that the electrotaxis behavior of worms is susceptible to cytosolic, mitochondrial, and ER stress, and that multiple stress response pathways contribute to its preservation in the face of stressful stimuli.
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Affiliation(s)
- Shane K. B. Taylor
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
| | - Muhammad H. Minhas
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
| | - Justin Tong
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
| | - P. Ravi Selvaganapathy
- grid.25073.330000 0004 1936 8227Department of Mechanical Engineering, McMaster University, Hamilton, ON Canada
| | - Ram K. Mishra
- grid.25073.330000 0004 1936 8227Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON Canada
| | - Bhagwati P. Gupta
- grid.25073.330000 0004 1936 8227Department of Biology, McMaster University, Hamilton, ON Canada
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22
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Zhang C, Boppart SA. Dynamic Signatures of Lipid Droplets as New Markers to Quantify Cellular Metabolic Changes. Anal Chem 2020; 92:15943-15952. [PMID: 33232121 DOI: 10.1021/acs.analchem.0c03366] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The metabolic properties of live cells are very susceptible to intra- or extracellular perturbations, making their measurements challenging tasks. We show that the dynamics of lipid droplets (LDs) carry information to measure the lipid metabolism of live cells. Coherent anti-Stokes Raman scattering microscopy was used to statistically quantify LD dynamics in living cells in a label-free manner. We introduce dynamic signatures of cells derived from the LD displacement, speed, travel length, and directionality, which allows for the detection of cellular changes induced by stimuli such as fluorescent labeling, temperature change, starvation, and chemical treatment. Histogram fittings of the dynamic signatures using log-normal distribution functions provide quantification of changes in cellular metabolic states. The LD dynamics also enable separation of subpopulations of LDs correlated with different functions. We demonstrate that LD dynamics measured by chemical imaging are new markers to quantify the metabolic changes in live cells.
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Affiliation(s)
- Chi Zhang
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 N Mathews Ave, Urbana, Illinois 61801, United States
| | - Stephen A Boppart
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 N Mathews Ave, Urbana, Illinois 61801, United States
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23
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Yap KN, Yamada K, Zikeli S, Kiaris H, Hood WR. Evaluating endoplasmic reticulum stress and unfolded protein response through the lens of ecology and evolution. Biol Rev Camb Philos Soc 2020; 96:541-556. [PMID: 33164297 DOI: 10.1111/brv.12667] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/13/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022]
Abstract
Considerable progress has been made in understanding the physiological basis for variation in the life-history patterns of animals, particularly with regard to the roles of oxidative stress and hormonal regulation. However, an underappreciated and understudied area that could play a role in mediating inter- and intraspecific variation of life history is endoplasmic reticulum (ER) stress, and the resulting unfolded protein response (UPRER ). ER stress response and the UPRER maintain proteostasis in cells by reducing the intracellular load of secretory proteins and enhancing protein folding capacity or initiating apoptosis in cells that cannot recover. Proper modulation of the ER stress response and execution of the UPRER allow animals to respond to intracellular and extracellular stressors and adapt to constantly changing environments. ER stress responses are heritable and there is considerable individual variation in UPRER phenotype in animals, suggesting that ER stress and UPRER phenotype can be subjected to natural selection. The variation in UPRER phenotype presumably reflects the way animals respond to ER stress and environmental challenges. Most of what we know about ER stress and the UPRER in animals has either come from biomedical studies using cell culture or from experiments involving conventional laboratory or agriculturally important models that exhibit limited genetic diversity. Furthermore, these studies involve the assessment of experimentally induced qualitative changes in gene expression as opposed to the quantitative variations that occur in naturally existing populations. Almost all of these studies were conducted in controlled settings that are often quite different from the conditions animals experience in nature. Herein, we review studies that investigated ER stress and the UPRER in relation to key life-history traits including growth and development, reproduction, bioenergetics and physical performance, and ageing and senescence. We then ask if these studies can inform us about the role of ER stress and the UPRER in mediating the aforementioned life-history traits in free-living animals. We propose that there is a need to conduct experiments pertaining to ER stress and the UPRER in ecologically relevant settings, to characterize variation in ER stress and the UPRER in free-living animals, and to relate the observed variation to key life-history traits. We urge others to integrate multiple physiological systems and investigate how interactions between ER stress and oxidative stress shape life-history trade-offs in free-living animals.
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Affiliation(s)
- Kang Nian Yap
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
| | - KayLene Yamada
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
| | - Shelby Zikeli
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
| | - Hippokratis Kiaris
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, and Peromyscus Genetic Stock Center, University of South Carolina, Columbia, SC, 29208, U.S.A
| | - Wendy R Hood
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
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24
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Mav D, Phadke DP, Balik-Meisner MR, Merrick BA, Auerbach S, Niemeijer M, Huppelschoten S, Baze A, Parmentier C, Richert L, van de Water B, Shah RR, Paules RS. Utility of Extrapolating Human S1500+ Genes to the Whole Transcriptome: Tunicamycin Case Study. Bioinform Biol Insights 2020; 14:1177932220952742. [PMID: 33088175 PMCID: PMC7545517 DOI: 10.1177/1177932220952742] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 08/04/2020] [Indexed: 01/07/2023] Open
Abstract
The TempO-Seq S1500+ platform(s), now available for human, mouse, rat, and zebrafish, measures a discrete number of genes that are representative of biological and pathway co-regulation across the entire genome in a given species. While measurement of these genes alone provides a direct assessment of gene expression activity, extrapolating expression values to the whole transcriptome (~26 000 genes in humans) can estimate measurements of non-measured genes of interest and increases the power of pathway analysis algorithms by using a larger background gene expression space. Here, we use data from primary hepatocytes of 54 donors that were treated with the endoplasmic reticulum (ER) stress inducer tunicamycin and then measured on the human S1500+ platform containing ~3000 representative genes. Measurements for the S1500+ genes were then used to extrapolate expression values for the remaining human transcriptome. As a case study of the improved downstream analysis achieved by extrapolation, the “measured only” and “whole transcriptome” (measured + extrapolated) gene sets were compared. Extrapolation increased the number of significant genes by 49%, bringing to the forefront many that are known to be associated with tunicamycin exposure. The extrapolation procedure also correctly identified established tunicamycin-related functional pathways reflected by coordinated changes in interrelated genes while maintaining the sample variability observed from the “measured only” genes. Extrapolation improved the gene- and pathway-level biological interpretations for a variety of downstream applications, including differential expression analysis, gene set enrichment pathway analysis, DAVID keyword analysis, Ingenuity Pathway Analysis, and NextBio correlated compound analysis. The extrapolated data highlight the role of metabolism/metabolic pathways, the ER, immune response, and the unfolded protein response, each of which are key activities associated with tunicamycin exposure that were unrepresented or underrepresented in one or more of the analyses of the original “measured only” dataset. Furthermore, the inclusion of the extrapolated genes raised “tunicamycin” from third to first upstream regulator in Ingenuity Pathway Analysis and from sixth to second most correlated compound in NextBio analysis. Therefore, our case study suggests an approach to extend and enhance data from the S1500+ platform for improved insight into biological mechanisms and functional outcomes of diseases, drugs, and other perturbations.
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Affiliation(s)
- Deepak Mav
- Sciome LLC, Research Triangle Park, NC, USA
| | | | | | - B Alex Merrick
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Scott Auerbach
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Marije Niemeijer
- Division of Toxicology, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, The Netherlands
| | - Suzanna Huppelschoten
- Division of Toxicology, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, The Netherlands
| | | | | | | | - Bob van de Water
- Division of Toxicology, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, The Netherlands
| | | | - Richard S Paules
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
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25
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Laine RA. The case for re-examining glycosylation inhibitors, mimetics, primers and glycosylation decoys as antivirals and anti-inflammatories in COVID19. Glycobiology 2020; 30:763-767. [PMID: 32829416 PMCID: PMC7499584 DOI: 10.1093/glycob/cwaa083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2020] [Indexed: 12/17/2022] Open
Affiliation(s)
- Roger A Laine
- Departments of Biological Sciences and Chemistry, Louisiana State University and A&M College, Baton Rouge, LA 70803, USA
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26
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Mitachi K, Kansal RG, Hevener KE, Gillman CD, Hussain SM, Yun HG, Miranda-Carboni GA, Glazer ES, Clemons WM, Kurosu M. DPAGT1 Inhibitors of Capuramycin Analogues and Their Antimigratory Activities of Solid Tumors. J Med Chem 2020; 63:10855-10878. [PMID: 32886511 DOI: 10.1021/acs.jmedchem.0c00545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Capuramycin displays a narrow spectrum of antibacterial activity by targeting bacterial translocase I (MraY). In our program of development of new N-acetylglucosaminephosphotransferase1 (DPAGT1) inhibitors, we have identified that a capuramycin phenoxypiperidinylbenzylamide analogue (CPPB) inhibits DPAGT1 enzyme with an IC50 value of 200 nM. Despite a strong DPAGT1 inhibitory activity, CPPB does not show cytotoxicity against normal cells and a series of cancer cell lines. However, CPPB inhibits migrations of several solid cancers including pancreatic cancers that require high DPAGT1 expression in order for tumor progression. DPAGT1 inhibition by CPPB leads to a reduced expression level of Snail but does not reduce E-cadherin expression level at the IC50 (DPAGT1) concentration. CPPB displays a strong synergistic effect with paclitaxel against growth-inhibitory action of a patient-derived pancreatic adenocarcinoma, PD002: paclitaxel (IC50: 1.25 μM) inhibits growth of PD002 at 0.0024-0.16 μM in combination with 0.10-2.0 μM CPPB (IC50: 35 μM).
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Affiliation(s)
- Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Rita G Kansal
- Department of Surgery and Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, 910 Madison St., Suite 300, Memphis, Tennessee 38163, United States
| | - Kirk E Hevener
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Cody D Gillman
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Syed M Hussain
- Department of Surgery and Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, 910 Madison St., Suite 300, Memphis, Tennessee 38163, United States
| | - Hyun Gi Yun
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Gustavo A Miranda-Carboni
- Department of Medicine, Division of Hematology-Oncology, University of Tennessee Health Science Center, 19 S. Manassas Avenue, Memphis, Tennessee 38163, United States
| | - Evan S Glazer
- Department of Surgery and Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, 910 Madison St., Suite 300, Memphis, Tennessee 38163, United States
| | - William M Clemons
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
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27
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Yin X, Fang T, Zhang L, Lin X, Yang Y, Lou S, Li C, Yu X, Xue Y. Impact of CD144 gene expression on outcomes in stage III gastric cancer patients. Pathology 2020; 52:657-669. [PMID: 32859388 DOI: 10.1016/j.pathol.2020.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/06/2020] [Accepted: 05/13/2020] [Indexed: 10/23/2022]
Abstract
CD144 has been shown to promote tumour angiogenesis, invasion and metastasis in malignant tumours. The purpose of the present study was to investigate the clinical prognostic significance of CD144 in advanced gastric cancer (GC) to complement the American Joint Committee on Cancer (AJCC) 8th Edition convention. We established that CD144 was highly related to angiogenesis using The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) public databases. We randomly selected 173 stage III GC patients who received curative gastrectomy. The expression level of CD144 was assessed by immunohistochemistry and Image-Pro Plus software. After survival analysis, nomograms were created to predict the risk of stage III gastric cancer patients' 5-years survival. In this study, the median value of the CD144 positive area/total area under the microscope was 5.6%, and this was defined as the cut-off value. The expression of CD144 assisted further subgrouping of stage Ⅲa, Ⅲb, and Ⅲc GC patients. To evaluate the disease-free survival (DFS) and overall survival (OS) of patients, univariate and multivariate analysis was performed, which showed that the expression of CD144 was an independent predictor for DFS, and Borrmann type and expression of CD144 were independent predictors for OS (p<0.05). Nomograms were used to evaluate the risk of stage III GC by combining Borrmann type and the expression level of CD144. In advanced GC patients, the expression level of CD144 is a useful prognostic indicator in evaluating the risk of disease prognosis.
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Affiliation(s)
- Xin Yin
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin, P.R. China
| | - Tianyi Fang
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin, P.R. China
| | - Lei Zhang
- Department of Pathology, Harbin Medical University, Harbin, P.R. China
| | - Xuan Lin
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
| | - Yongheng Yang
- Department of Pathology, Harbin Medical University, Harbin, P.R. China
| | - Shenghan Lou
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin, P.R. China
| | - Chunfeng Li
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin, P.R. China
| | - Xuefeng Yu
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin, P.R. China
| | - Yingwei Xue
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin, P.R. China.
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28
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Pristimerin Exacerbates Cellular Injury in Conditionally Reprogrammed Patient-Derived Lung Adenocarcinoma Cells by Aggravating Mitochondrial Impairment and Endoplasmic Reticulum Stress through EphB4/CDC42/N-WASP Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7409853. [PMID: 32733636 PMCID: PMC7369684 DOI: 10.1155/2020/7409853] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 03/31/2020] [Accepted: 04/23/2020] [Indexed: 11/18/2022]
Abstract
Lung cancer is the most common and lethal malignant disease for which the development of efficacious chemotherapeutic agents remains an urgent need. Pristimerin (PRIS), a natural bioactive component isolated from various plant species in the Celastraceae and Hippocrateaceae families, has been reported to exhibit outstanding antitumor effects in several types of cells. However, the underlying mechanisms involved remain poorly understood. Here, we reported the novel finding that PRIS significantly suppressed lung cancer growth in conditionally reprogrammed patient-derived lung adenocarcinoma cells (CRLCs). We demonstrated that PRIS inhibited the cell viabilities, migrative and invaded abilities, and capillary structure formation of CRLCs. Furthermore, our results clarified that PRIS induced mitochondrial dysfunction through reactive oxygen species (ROS) generation, activation of caspase-9, caspase-3, and caspase-4, and expression of endoplasmic reticulum (ER) stress-associated proteins. Inhibition of ER stress by 4-PBA (4-phenylbutyric acid, a specific ER stress inhibitor) or CHOP siRNA transfection ameliorated PRIS-induced loss of mitochondrial membrane potential and intrinsic apoptosis. The present study also provides mechanistic evidence that PRIS suppressed the EphB4/CDC42/N-WASP signaling pathway, which is required for mitochondrial-mediated intrinsic apoptosis, activation of ER stress, and stimulation of caspase-4 induced by PRIS, and consequently resulting in suppressed cell viability, migration, and angiogenesis in CRLCs. Taken together, by providing a mechanistic insight into the modulation of ER stress-induced cell death in CRLCs by PRIS, we suggest that PRIS has a strong potential of being a new antitumor therapeutic agent with applications in the fields of human lung adenocarcinoma.
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29
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Chandler KB, Alamoud KA, Stahl VL, Nguyen BC, Kartha VK, Bais MV, Nomoto K, Owa T, Monti S, Kukuruzinska MA, Costello CE. β-Catenin/CBP inhibition alters epidermal growth factor receptor fucosylation status in oral squamous cell carcinoma. Mol Omics 2020; 16:195-209. [PMID: 32203567 PMCID: PMC7299767 DOI: 10.1039/d0mo00009d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Epidermal growth factor receptor (EGFR) is a major driver of head and neck cancer, a devastating malignancy with a major sub-site in the oral cavity manifesting as oral squamous cell carcinoma (OSCC). EGFR is a glycoprotein receptor tyrosine kinase (RTK) whose activity is upregulated in >80% OSCC. Current anti-EGFR therapy relies on the use of cetuximab, a monoclonal antibody against EGFR, although it has had only a limited response in patients. Here, we uncover a novel mechanism regulating EGFR activity, identifying a role of the nuclear branch of the Wnt/β-catenin signaling pathway, the β-catenin/CBP axis, in control of post-translational modification of N-glycans on the EGFR. Genomic and structural analyses reveal that β-catenin/CBP signaling represses fucosylation on the antennae of N-linked glycans on EGFR. By employing nUPLC-MS/MS, we determined that malignant human OSCC cells harbor EGFR with a paucity of N-glycan antennary fucosylation, while indolent cells display higher levels of fucosylation at sites N420 and N579. Additionally, treatment with either ICG-001 or E7386, which are both small molecule inhibitors of β-catenin/CBP signaling, leads to increased transcriptional expression of fucosyltransferases FUT2 and FUT3, with a concomitant increase in EGFR N-glycan antennary fucosylation. In order to discover which fucosylated glycan epitopes are involved in the observed effect, we performed in-depth characterization of multiply-fucosylated N-glycans via tandem mass spectrometry analysis of the EGFR tryptic glycopeptides. Data are available via ProteomeXchange with identifier PXD017060. We propose that β-catenin/CBP signaling promotes EGFR oncogenic activity in OSCC by inhibiting its N-glycan antennary fucosylation through transcriptional repression of FUT2 and FUT3.
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Affiliation(s)
- Kevin Brown Chandler
- Center for Biomedical Mass Spectrometry, Department of Biochemistry, Boston University School of Medicine, Boston, MA, 02118 USA
| | - Khalid A. Alamoud
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, Boston, MA, 02118 USA
| | - Vanessa L Stahl
- Center for Biomedical Mass Spectrometry, Department of Biochemistry, Boston University School of Medicine, Boston, MA, 02118 USA
| | - Bach-Cuc Nguyen
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, Boston, MA, 02118 USA
| | - Vinay K. Kartha
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, 02118 USA
| | - Manish V. Bais
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, Boston, MA, 02118 USA
| | | | | | - Stefano Monti
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, 02118 USA
| | - Maria A. Kukuruzinska
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, Boston, MA, 02118 USA
| | - Catherine E. Costello
- Center for Biomedical Mass Spectrometry, Department of Biochemistry, Boston University School of Medicine, Boston, MA, 02118 USA
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30
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Cagala M, Pavlikova L, Seres M, Kadlecikova K, Breier A, Sulova Z. Development of Resistance to Endoplasmic Reticulum Stress-Inducing Agents in Mouse Leukemic L1210 Cells. Molecules 2020; 25:molecules25112517. [PMID: 32481618 PMCID: PMC7321222 DOI: 10.3390/molecules25112517] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 02/06/2023] Open
Abstract
Four new variants of L1210 cells resistant to endoplasmic reticulum (ER) stressors, tunicamycin (STun), thapsigargin (SThap), bortezomib (SBor), and MG-132 (SMG-132), were developed via an 18-month periodic cultivation in culture medium with a gradual increase in substance concentration. Multidrug resistance was generated for STun (to tunicamycin, bortezomib and MG-132), SThap (to tunicamycin, thapsigargin and MG-132), SBor (to bortezomib and MG-132), and SMG-132 (to bortezomib and MG-132). These cells were compared to the original L1210 cells and another two variants, which expressed P-gp due to induction with vincristine or transfection with the gene encoding P-gp, in terms of the following properties: sensitivity to either vincristine or the ER stressors listed above, proliferative activity, expression of resistance markers and proteins involved in the ER stress response, and proteasome activity. The resistance of the new cell variants to ER stressors was accompanied by a decreased proliferation rate and increased proteasome activity. The most consistent change in protein expression was the elevation of GRP78/BiP at the mRNA and protein levels in all resistant variants of L1210 cells. In conclusion, the mechanisms of resistance to these stressors have certain common features, but there are also specific differences.
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Affiliation(s)
- Martin Cagala
- Institute of Molecular Physiology and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (M.C.); (M.S.)
| | - Lucia Pavlikova
- Institute of Molecular Physiology and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (M.C.); (M.S.)
- Correspondence: (L.P.); (A.B.); (Z.S.); Tel.: +421-2-593-25-514 (A.B.); +421-2-32295510 (Z.S.)
| | - Mario Seres
- Institute of Molecular Physiology and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (M.C.); (M.S.)
| | - Karolina Kadlecikova
- Institute of Biochemistry and Microbiology, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia;
| | - Albert Breier
- Institute of Molecular Physiology and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (M.C.); (M.S.)
- Institute of Biochemistry and Microbiology, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia;
- Correspondence: (L.P.); (A.B.); (Z.S.); Tel.: +421-2-593-25-514 (A.B.); +421-2-32295510 (Z.S.)
| | - Zdena Sulova
- Institute of Molecular Physiology and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (M.C.); (M.S.)
- Correspondence: (L.P.); (A.B.); (Z.S.); Tel.: +421-2-593-25-514 (A.B.); +421-2-32295510 (Z.S.)
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31
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Boyle ST, Poltavets V, Kular J, Pyne NT, Sandow JJ, Lewis AC, Murphy KJ, Kolesnikoff N, Moretti PAB, Tea MN, Tergaonkar V, Timpson P, Pitson SM, Webb AI, Whitfield RJ, Lopez AF, Kochetkova M, Samuel MS. ROCK-mediated selective activation of PERK signalling causes fibroblast reprogramming and tumour progression through a CRELD2-dependent mechanism. Nat Cell Biol 2020; 22:882-895. [PMID: 32451439 DOI: 10.1038/s41556-020-0523-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/17/2020] [Indexed: 01/05/2023]
Abstract
It is well accepted that cancers co-opt the microenvironment for their growth. However, the molecular mechanisms that underlie cancer-microenvironment interactions are still poorly defined. Here, we show that Rho-associated kinase (ROCK) in the mammary tumour epithelium selectively actuates protein-kinase-R-like endoplasmic reticulum kinase (PERK), causing the recruitment and persistent education of tumour-promoting cancer-associated fibroblasts (CAFs), which are part of the cancer microenvironment. An analysis of tumours from patients and mice reveals that cysteine-rich with EGF-like domains 2 (CRELD2) is the paracrine factor that underlies PERK-mediated CAF education downstream of ROCK. We find that CRELD2 is regulated by PERK-regulated ATF4, and depleting CRELD2 suppressed tumour progression, demonstrating that the paracrine ROCK-PERK-ATF4-CRELD2 axis promotes the progression of breast cancer, with implications for cancer therapy.
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Affiliation(s)
- Sarah Theresa Boyle
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Valentina Poltavets
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Jasreen Kular
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Natasha Theresa Pyne
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Jarrod John Sandow
- Division of Systems Biology and Personalised Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Alexander Charles Lewis
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,Translational Haematology Program, Peter McCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Kendelle Joan Murphy
- The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, St Vincent's Clinical School, University of NSW, Sydney, New South Wales, Australia
| | - Natasha Kolesnikoff
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | | | - Melinda Nay Tea
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Vinay Tergaonkar
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,Institute of Molecular and Cell Biology, A*STAR and Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Paul Timpson
- The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, St Vincent's Clinical School, University of NSW, Sydney, New South Wales, Australia
| | - Stuart Maxwell Pitson
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Andrew Ian Webb
- Division of Systems Biology and Personalised Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Robert John Whitfield
- Breast, Endocrine and Surgical Oncology Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Angel Francisco Lopez
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Marina Kochetkova
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.
| | - Michael Susithiran Samuel
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia, Australia. .,Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia.
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32
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Ivanova IG, Park CV, Yemm AI, Kenneth NS. PERK/eIF2α signaling inhibits HIF-induced gene expression during the unfolded protein response via YB1-dependent regulation of HIF1α translation. Nucleic Acids Res 2019. [PMID: 29529249 PMCID: PMC5934640 DOI: 10.1093/nar/gky127] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
HIF1α (hypoxia inducible factor 1α) is the central regulator of the cellular response to low oxygen and its activity is deregulated in multiple human pathologies. Consequently, given the importance of HIF signaling in disease, there is considerable interest in developing strategies to modulate HIF1α activity and down-stream signaling events. In the present study we find that under hypoxic conditions, activation of the PERK branch of the unfolded protein response (UPR) can suppress the levels and activity of HIF1α by preventing efficient HIF1α translation. Activation of PERK inhibits de novo HIF1α protein synthesis by preventing the RNA-binding protein, YB-1, from interacting with the HIF1α mRNA 5′UTR. Our data indicate that activation of the UPR can sensitise tumor cells to hypoxic stress, indicating that chemical activation of the UPR could be a strategy to target hypoxic malignant cancer cells.
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Affiliation(s)
- Iglika G Ivanova
- Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Catherine V Park
- Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Adrian I Yemm
- Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Niall S Kenneth
- Institute for Cell and Molecular Biosciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
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33
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Chandler KB, Leon DR, Kuang J, Meyer RD, Rahimi N, Costello CE. N-Glycosylation regulates ligand-dependent activation and signaling of vascular endothelial growth factor receptor 2 (VEGFR2). J Biol Chem 2019; 294:13117-13130. [PMID: 31308178 DOI: 10.1074/jbc.ra119.008643] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/10/2019] [Indexed: 11/06/2022] Open
Abstract
The tumor microenvironment and proinflammatory signals significantly alter glycosylation of cell-surface proteins on endothelial cells. By altering the N-glycosylation machinery in the endoplasmic reticulum and Golgi, proinflammatory cytokines promote the modification of endothelial glycoproteins such as vascular endothelial growth factor receptor 2 (VEGFR2) with sialic acid-capped N-glycans. VEGFR2 is a highly N-glycosylated receptor tyrosine kinase involved in pro-angiogenic signaling in physiological and pathological contexts, including cancer. Here, using glycoside hydrolase and kinase assays and immunoprecipitation and MS-based analyses, we demonstrate that N-linked glycans at the Asn-247 site in VEGFR2 hinder VEGF ligand-mediated receptor activation and signaling in endothelial cells. We provide evidence that cell surface-associated VEGFR2 displays sialylated N-glycans at Asn-247 and, in contrast, that the nearby sites Asn-145 and Asn-160 contain lower levels of sialylated N-glycans and higher levels of high-mannose N-glycans, respectively. Furthermore, we report that VEGFR2 Asn-247-linked glycans capped with sialic acid oppose ligand-mediated VEGFR2 activation, whereas the uncapped asialo-glycans favor activation of this receptor. We propose that N-glycosylation, specifically the capping of N-glycans at Asn-247 by sialic acid, tunes ligand-dependent activation and signaling of VEGFR2 in endothelial cells.
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Affiliation(s)
- Kevin Brown Chandler
- Center for Biomedical Mass Spectrometry, Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Deborah R Leon
- Center for Biomedical Mass Spectrometry, Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Jenevieve Kuang
- Center for Biomedical Mass Spectrometry, Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts 02118; Department of Chemistry, Boston University, Boston, Massachusetts 02118
| | - Rosana D Meyer
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston Massachusetts 02118
| | - Nader Rahimi
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston Massachusetts 02118
| | - Catherine E Costello
- Center for Biomedical Mass Spectrometry, Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts 02118; Department of Chemistry, Boston University, Boston, Massachusetts 02118.
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34
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Jiang Q, Tian J, Liu G, Yin Y, Yao K. Endoplasmic Reticulum Stress and Unfolded Protein Response Pathways Involved in the Health-Promoting Effects of Allicin on the Jejunum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6019-6031. [PMID: 31067048 DOI: 10.1021/acs.jafc.9b02180] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Intestinal endoplasmic reticulum stress (ERS) triggered by adverse factors disturbs the normal function of the intestine. Allicin has been reported to promote intestinal health and development. In the present study, we established in vivo (35-day-old weaned piglets, 4-week-old mice) and in vitro (IPEC-J2 cell line) ERS models to explore the possible mechanisms by which allicin may benefit intestinal health. This study revealed the following: (1) allicin supplementation improved intestinal morphological indices and ameliorated mild ERS in the jejunum of the weaned piglets; (2) allicin supplementation decreased cellular reactive oxygen species and upregulated the XBP-1s signaling pathways in IPEC-J2 cells; (3) allicin supplementation reduced the prolonged ERS-mediated apoptosis of IPEC-J2 cells and in the jejunal tissues of the KM mice; (4) allicin supplementation enhanced the intercellular junction protein levels of jejunal cells by alleviating the prolonged ERS. These novel findings suggest that eating garlic could alleviate some intestinal malfunctions associated with ERS.
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Affiliation(s)
- Qian Jiang
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
- University of Chinese Academy of Sciences , Beijing 100043 , P.R. China
- Department of Animal Science , University of Manitoba , Winnipeg , MB R3T 2N2 , Canada
| | - Junquan Tian
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Gang Liu
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Yulong Yin
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Kang Yao
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
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TiO 2 particles induce ER stress and apoptosis in human hepatoma cells, HepG2, in a particle size-dependent manner. Food Sci Biotechnol 2019; 28:1907-1917. [PMID: 31807365 DOI: 10.1007/s10068-019-00623-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/07/2019] [Accepted: 04/25/2019] [Indexed: 12/21/2022] Open
Abstract
The cytotoxicity of TiO2 nanoparticles are well-known, but the particle size-dependent induction of ER stress and apoptosis by TiO2 in hepatocytes has not been elucidated clearly. In the present study, we investigated whether a fine TiO2 particle and two types of TiO2 nanoparticles induce ER stress and apoptosis differently in HepG2 cells. A particle size-dependent decrease in cell viability was observed after exposure to the TiO2 particles. The levels of ER stress-related proteins (BiP, CHOP, ATF6α, and p-PERK) were increased with decreasing particle size. TiO2 particles induced ER stress-mediated apoptosis in a particle size-dependent manner as seen by a decrease in the expression of Bcl-2, and increases in the expression of Bax, caspase-12, and cleaved caspase-3. These results indicated that the cytotoxicity produced by TiO2 particles was related to particle size, with smaller TiO2 nanoparticles producing greater toxic effects involving ER stress and apoptosis in the HepG2 cells.
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36
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Oncogenic Signaling in Tumorigenesis and Applications of siRNA Nanotherapeutics in Breast Cancer. Cancers (Basel) 2019; 11:cancers11050632. [PMID: 31064156 PMCID: PMC6562835 DOI: 10.3390/cancers11050632] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/06/2019] [Accepted: 04/08/2019] [Indexed: 12/16/2022] Open
Abstract
Overexpression of oncogenes and cross-talks of the oncoproteins-regulated signaling cascades with other intracellular pathways in breast cancer could lead to massive abnormal signaling with the consequence of tumorigenesis. The ability to identify the genes having vital roles in cancer development would give a promising therapeutics strategy in combating the disease. Genetic manipulations through siRNAs targeting the complementary sequence of the oncogenic mRNA in breast cancer is one of the promising approaches that can be harnessed to develop more efficient treatments for breast cancer. In this review, we highlighted the effects of major signaling pathways stimulated by oncogene products on breast tumorigenesis and discussed the potential therapeutic strategies for targeted delivery of siRNAs with nanoparticles in suppressing the stimulated signaling pathways.
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37
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Jin J, Shi X, Li Y, Zhang Q, Guo Y, Li C, Tan P, Fang Q, Ma Y, Ma RZ. Reticulocalbin 3 Deficiency in Alveolar Epithelium Exacerbated Bleomycin-induced Pulmonary Fibrosis. Am J Respir Cell Mol Biol 2019; 59:320-333. [PMID: 29676583 DOI: 10.1165/rcmb.2017-0347oc] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Reticulocalbin 3 (Rcn3) is an endoplasmic reticulum (ER) lumen protein localized to the secretory pathway. We have reported that Rcn3 plays a critical role in alveolar epithelial type II cell maturation during perinatal lung development, but its biological role in the adult lung is largely unknown. In this study, we found marked induction of Rcn3 expression in alveolar epithelium during bleomycin-induced pulmonary fibrosis, which is most obvious in alveolar epithelial type II cells (AECIIs). To further examine Rcn3 in pulmonary injury remodeling, we generated transgenic mice to selectively delete Rcn3 in AECIIs in adulthood. Although Rcn3 deletion did not cause obvious abnormalities in the lung architecture and mechanics, the exposure of Rcn3-deleted mice to bleomycin led to exacerbated pulmonary fibrosis and reduced lung mechanics. These Rcn3-deleted mice also displayed enhanced alveolar epithelial cell (AEC) apoptosis and ER stress after bleomycin treatment, which was confirmed by in vitro studies both in primary AECIIs and mouse lung epithelial cells. Consistently, Rcn3 deficiency also enhanced ER stress and apoptosis induced by ER stress inducers, tunicamycin and thapsigargin. In addition, Rcn3 deficiency caused blunted wound closure capability of AECs, but not altered proliferation and bleomycin-induced epithelial-mesenchymal transition process. Collectively, these findings indicate that bleomycin-induced upregulation of Rcn3 in AECIIs appears to contribute to AECII survival and wound healing. These observations, for the first time, suggest a novel role of Rcn3 in regulating pulmonary injury remodeling, and shed additional light on the mechanism of idiopathic pulmonary fibrosis.
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Affiliation(s)
- Jiawei Jin
- 1 The Clinical Research Center, and.,4 Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xiaoqian Shi
- 4 Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.,5 The University of Chinese Academy of Sciences, Beijing, China
| | - Yongchao Li
- 4 Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.,2 State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Qianyu Zhang
- 3 Key Laboratory of Reproduction and Genetics, Guangdong Higher Education Institutes, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; and
| | - Yu Guo
- 4 Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.,5 The University of Chinese Academy of Sciences, Beijing, China
| | - Chaokun Li
- 4 Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.,5 The University of Chinese Academy of Sciences, Beijing, China
| | - Pingping Tan
- 4 Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Qiuhong Fang
- 3 Key Laboratory of Reproduction and Genetics, Guangdong Higher Education Institutes, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; and
| | - Yingmin Ma
- 3 Key Laboratory of Reproduction and Genetics, Guangdong Higher Education Institutes, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; and
| | - Runlin Z Ma
- 4 Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.,5 The University of Chinese Academy of Sciences, Beijing, China
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38
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Guimarães ES, Gomes MTR, Campos PC, Mansur DS, Dos Santos AA, Harms J, Splitter G, Smith JA, Barber GN, Oliveira SC. Brucella abortus Cyclic Dinucleotides Trigger STING-Dependent Unfolded Protein Response That Favors Bacterial Replication. THE JOURNAL OF IMMUNOLOGY 2019; 202:2671-2681. [PMID: 30894428 DOI: 10.4049/jimmunol.1801233] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 02/28/2019] [Indexed: 01/13/2023]
Abstract
Brucella abortus is a facultative intracellular bacterium that causes brucellosis, a prevalent zoonosis that leads to abortion and infertility in cattle, and undulant fever, debilitating arthritis, endocarditis, and meningitis in humans. Signaling pathways triggered by B. abortus involves stimulator of IFN genes (STING), which leads to production of type I IFNs. In this study, we evaluated the pathway linking the unfolded protein response (UPR) and the endoplasmic reticulum-resident transmembrane molecule STING, during B. abortus infection. We demonstrated that B. abortus infection induces the expression of the UPR target gene BiP and XBP1 in murine macrophages through a STING-dependent pathway. Additionally, we also observed that STING activation was dependent on the bacterial second messenger cyclic dimeric GMP. Furthermore, the Brucella-induced UPR is crucial for induction of multiple molecules linked to type I IFN signaling pathway, such as IFN-β, IFN regulatory factor 1, and guanylate-binding proteins. Furthermore, IFN-β is also important for the UPR induction during B. abortus infection. Indeed, IFN-β shows a synergistic effect in inducing the IRE1 axis of the UPR. In addition, priming cells with IFN-β favors B. abortus survival in macrophages. Moreover, Brucella-induced UPR facilitates bacterial replication in vitro and in vivo. Finally, these results suggest that B. abortus-induced UPR is triggered by bacterial cyclic dimeric GMP, in a STING-dependent manner, and that this response supports bacterial replication. In summary, association of STING and IFN-β signaling pathways with Brucella-induced UPR unravels a novel link between innate immunity and endoplasmic reticulum stress that is crucial for bacterial infection outcome.
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Affiliation(s)
- Erika S Guimarães
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 30270-901, Brazil
| | - Marco Túlio R Gomes
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 30270-901, Brazil
| | - Priscila C Campos
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 30270-901, Brazil
| | - Daniel S Mansur
- Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianopolis, Santa Catarina 88040-900, Brazil
| | - Adara A Dos Santos
- Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianopolis, Santa Catarina 88040-900, Brazil
| | - Jerome Harms
- Department of Pathobiological Sciences, University of Wisconsin, Madison, WI 53706
| | - Gary Splitter
- Department of Pathobiological Sciences, University of Wisconsin, Madison, WI 53706
| | - Judith A Smith
- Department of Pediatrics, University of Wisconsin, Madison, WI 53792
| | - Glen N Barber
- Department of Cell Biology, University of Miami, Miami, FL 33136; and
| | - Sergio C Oliveira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 30270-901, Brazil; .,Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Ministério de Ciência Tecnologia e Inovação, Salvador 40110-160, Brazil
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39
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Blanchard TG, Czinn SJ, Banerjee V, Sharda N, Bafford AC, Mubariz F, Morozov D, Passaniti A, Ahmed H, Banerjee A. Identification of Cross Talk between FoxM1 and RASSF1A as a Therapeutic Target of Colon Cancer. Cancers (Basel) 2019; 11:cancers11020199. [PMID: 30744076 PMCID: PMC6406751 DOI: 10.3390/cancers11020199] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 02/04/2019] [Accepted: 02/07/2019] [Indexed: 12/20/2022] Open
Abstract
Metastatic colorectal cancer (mCRC) is characterized by the expression of cellular oncogenes, the loss of tumor suppressor gene function. Therefore, identifying integrated signaling between onco-suppressor genes may facilitate the development of effective therapy for mCRC. To investigate these pathways we utilized cell lines and patient derived organoid models for analysis of gene/protein expression, gene silencing, overexpression, and immunohistochemical analyses. An inverse relationship in expression of oncogenic FoxM1 and tumor suppressor RASSF1A was observed in various stages of CRC. This inverse correlation was also observed in mCRC cells lines (T84, Colo 205) treated with Akt inhibitor. Inhibition of FoxM1 expression in mCRC cells as well as in our ex vivo model resulted in increased RASSF1A expression. Reduced levels of RASSF1A expression were found in normal cells (RWPE-1, HBEpc, MCF10A, EC) stimulated with exogenous VEGF165. Downregulation of FoxM1 also coincided with increased YAP phosphorylation, indicative of tumor suppression. Conversely, downregulation of RASSF1A coincided with FoxM1 overexpression. These studies have identified for the first time an integrated signaling pathway between FoxM1 and RASSF1A in mCRC progression, which may facilitate the development of novel therapeutic options for advanced colon cancer therapy.
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Affiliation(s)
- Thomas G Blanchard
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Steven J Czinn
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Vivekjyoti Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Neha Sharda
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Andrea C Bafford
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Fahad Mubariz
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Dennis Morozov
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Antonino Passaniti
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- The Marlene & Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Department of Biochemistry & Molecular Biology and Program in Molecular Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | | | - Aditi Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Dynamic Function of DPMS Is Essential for Angiogenesis and Cancer Progression. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019. [PMID: 30637701 DOI: 10.1007/978-981-13-3065-0_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2023]
Abstract
Dolichol phosphate mannose synthase (DPMS) is an inverting GT-A-folded enzyme and classified as GT2 by CAZy. DPMS sequence carries a metal-binding DXD motif, a PKA motif, and a variable number of hydrophobic domains. Human and bovine DPMS possess a single transmembrane domain, whereas that from S. cerevisiae and A. thaliana carry multiple transmembrane domains and are superimposable. The catalytic activity of DPMS is documented in all spheres of life, and the 32kDa protein is uniquely regulated by protein phosphorylation. Intracellular activation of DPMS by cAMP signaling is truly due to the activation of the enzyme and not due to increased Dol-P level. The sequence of DPMS in some species also carries a protein N-glycosylation motif (Asn-X-Ser/Thr). Apart from participating in N-glycan biosynthesis, DPMS is essential for the synthesis of GPI anchor as well as for O- and C-mannosylation of proteins. Because of the dynamic nature, DPMS actively participates in cellular proliferation enhancing angiogenesis and breast tumor progression. In fact, overexpression of DPMS in capillary endothelial cells supports increased N-glycosylation, cellular proliferation, and enhanced chemotactic activity. These are expected to be completely absent in congenital disorders of glycosylation (CDGs) due to the silence of DPMS catalytic activity. DPMS has also been found to be involved in the cross talk with N-acetylglucosaminyl 1-phosphate transferase (GPT). Inhibition of GPT with tunicamycin downregulates the DPMS catalytic activity quantitatively. The result is impairment of surface N-glycan expression, inhibition of angiogenesis, proliferation of human breast cancer cells, and induction of apoptosis. Interestingly, nano-formulated tunicamycin is three times more potent in inhibiting the cell cycle progression than the native tunicamycin and is supported by downregulation of the ratio of phospho-p53 to total-p53 as well as phospho-Rb to total Rb. DPMS expression is also reduced significantly. However, nano-formulated tunicamycin does not induce apoptosis. We, therefore, conclude that DPMS could become a novel target for developing glycotherapy treating breast tumor in the clinic.
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The discovery of purine-based agents targeting triple-negative breast cancer and the αB-crystallin/VEGF protein–protein interaction. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2275-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Ahmmed B, Khan MN, Nisar MA, Kampo S, Zheng Q, Li Y, Yan Q. Tunicamycin enhances the suppressive effects of cisplatin on lung cancer growth through PTX3 glycosylation via AKT/NF-κB signaling pathway. Int J Oncol 2018; 54:431-442. [PMID: 30483742 PMCID: PMC6317655 DOI: 10.3892/ijo.2018.4650] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 07/05/2018] [Indexed: 12/22/2022] Open
Abstract
Long pentraxin-3 (PTX3) is an inflammatory molecule related to cancer proliferation, invasion, and metastasis. Many studies have highlighted the significance of glycosylated molecules in immune modulation, inflammation and cancer progression. Moreover, aberrant glycosylation of cancer cells is linked to chemoresistance. This study aimed to develop effective therapeutic strategies for deglycosylation of PTX3 (dePTX3) in order to enhance chemosensitivity to cisplatin (Cis) in lung cancer treatment. The A549 and SPCA1 cells were used to determine the role of PTX3 glycosylation in lung cancer growth. Our results revealed that PTX3 was higher in both human lung cancer tissues and serum in comparison with control. Furthermore, we found that deglycosylated PTX3 (dePTX3) by tunicamycin (TM), which is N-glycan precursor biosynthesis blocker, and PNGase F significantly reduced the survival and migration of lung cancer cells. To further confirm this, we also generated glycosylation-site mutant of PTX3 (mPTX3) to characterize the loss of glyco-function. dePTX3 and TM enhanced the suppressive effects of Cis on lung cancer cell growth, migration and invasion compared to individual treatment. Treatment with a combination of TM and Cis significantly inactivated AKT/NF-κB signaling pathway and induced apoptosis. In conclusion, these findings suggest that PTX3 is an important mediator of lung cancer progression, and dePTX3 by TM enhances the anticancer effects of Cis. The deglycosylation in chemotherapy may represent a potential novel therapeutic strategy against lung cancer.
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Affiliation(s)
- Bulbul Ahmmed
- Department of Biochemistry and Molecular Biology, Liaoning Provincial Core Laboratory of Glycobiology and Glycoengineering, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Muhammad Noman Khan
- Department of Biochemistry and Molecular Biology, Liaoning Provincial Core Laboratory of Glycobiology and Glycoengineering, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Muhammad Azhar Nisar
- Department of Biochemistry and Molecular Biology, Liaoning Provincial Core Laboratory of Glycobiology and Glycoengineering, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Sylvanus Kampo
- Department of Biochemistry and Molecular Biology, Liaoning Provincial Core Laboratory of Glycobiology and Glycoengineering, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Qin Zheng
- Department of Biochemistry and Molecular Biology, Liaoning Provincial Core Laboratory of Glycobiology and Glycoengineering, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Yulin Li
- Department of Biochemistry and Molecular Biology, Liaoning Provincial Core Laboratory of Glycobiology and Glycoengineering, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Qiu Yan
- Department of Biochemistry and Molecular Biology, Liaoning Provincial Core Laboratory of Glycobiology and Glycoengineering, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
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Serrano-Negrón JE, Zhang Z, Rivera-Ruiz AP, Banerjee A, Romero-Nutz EC, Sánchez-Torres N, Baksi K, Banerjee DK. Tunicamycin-induced ER stress in breast cancer cells neither expresses GRP78 on the surface nor secretes it into the media. Glycobiology 2018; 28:61-68. [PMID: 29206917 DOI: 10.1093/glycob/cwx098] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 11/28/2017] [Indexed: 12/13/2022] Open
Abstract
GRP78 (an Mr 78 kDa calcium dependent glucose binding protein) is located in ER lumen. It functions as ER chaperone and translocates proteins for glycosylation at the asparagine residue present in the sequon Asn-X-Ser/Thr. Paraffin sections from N-glycosylation inhibitor tunicamycin treated ER-/PR-/HER2+ (double negative) breast tumor in athymic nude mice exhibited reduced N-glycan but increased GRP78 expression. We have evaluated the effect of tunicamycin on cellular localization of GRP78 in metastatic human breast cancer cells MDA-MB-231 (ER-/PR-/HER2-). Tunicamycin inhibited cell proliferation in a time and dose-dependent manner. Nonmetastatic estrogen receptor positive (ER+) MCF-7 breast cancer cells were also equally effective. GRP78 expression (protein and mRNA) was higher in tunicamycin (1.0 μg/mL) treated MCF-7 and MDA-MB-231 cells. GRP78 is an ER stress marker, so we have followed its intracellular localization using immunofluorescence microscopy after subjecting the cancer cells to various stress conditions. Unfixed cells stained with either FITC-conjugated Concanavalin A (Con A) or Texas-red conjugated wheat germ agglutinin (WGA) exhibited surface expression of N-glycans but not GRP78. GRP78 became detectable only after a brief exposure of cells to ice-cold methanol. Western blotting did not detect GRP78 in conditioned media of cancer cells whereas it did for MMP-1. The conclusion, GRP78 is expressed neither on the outer-leaflet of the (ER-/PR-/HER2-) human breast cancer cells nor it is secreted into the culture media during tunicamycin-induced ER stress. Our study therefore suggests strongly that anti-tumorigenic action of tunicamycin can be modeled to develop next generation cancer therapy, i.e., glycotherapy for treating breast and other sold tumors.
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Affiliation(s)
- Jesús E Serrano-Negrón
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA.,Department of Natural Sciences and Mathematics, Interamerican University of Puerto Rico, Bayamón Campus, PR 00957, USA
| | - Zhenbo Zhang
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA
| | - Andrea P Rivera-Ruiz
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA
| | - Aditi Banerjee
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA
| | - Eva C Romero-Nutz
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA
| | - Neysharie Sánchez-Torres
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA
| | - Krishna Baksi
- Department of Anatomy and Cell Biology, Universidad Central del Caribe, Bayamón, PR 00960-3001, USA
| | - Dipak K Banerjee
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936-5067, USA.,Institute of Functional Nanomaterials, University of Puerto Rico, San Juan, PR PR00931-1907, USA
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Bousseau S, Vergori L, Soleti R, Lenaers G, Martinez MC, Andriantsitohaina R. Glycosylation as new pharmacological strategies for diseases associated with excessive angiogenesis. Pharmacol Ther 2018; 191:92-122. [DOI: 10.1016/j.pharmthera.2018.06.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 06/01/2018] [Indexed: 02/07/2023]
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Wu Z, Yang F, Jiang S, Sun X, Xu J. Induction of Liver Steatosis in BAP31-Deficient Mice Burdened with Tunicamycin-Induced Endoplasmic Reticulum Stress. Int J Mol Sci 2018; 19:ijms19082291. [PMID: 30081561 PMCID: PMC6121476 DOI: 10.3390/ijms19082291] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/24/2018] [Accepted: 08/02/2018] [Indexed: 12/12/2022] Open
Abstract
Endoplasmic reticulum (ER) stress is highly associated with liver steatosis. B-cell receptor-associated protein 31 (BAP31) has been reported to be involved in ER homeostasis, and plays key roles in hepatic lipid metabolism in high-fat diet-induced obese mice. However, whether BAP31 modulates hepatic lipid metabolism via regulating ER stress is still uncertain. In this study, wild-type and liver-specific BAP31-depleted mice were administrated with ER stress activator of Tunicamycin, the markers of ER stress, liver steatosis, and the underlying molecular mechanisms were determined. BAP31 deficiency increased Tunicamycin-induced hepatic lipid accumulation, aggravated liver dysfunction, and increased the mRNA levels of ER stress markers, including glucose-regulated protein 78 (GRP78), X-box binding protein 1 (XBP1), inositol-requiring protein-1α (IRE1α) and C/EBP homologous protein (CHOP), thus promoting ER stress in vivo and in vitro. Hepatic lipid export via very low-density lipoprotein (VLDL) secretion was impaired in BAP31-depleted mice, accompanied by reduced Apolipoprotein B (APOB) and microsomal triglyceride transfer protein (MTTP) expression. Exogenous lipid clearance was also inhibited, along with impaired gene expression related to fatty acid transportation and fatty acid β-oxidation. Finally, BAP31 deficiency increased Tunicamycin-induced hepatic inflammatory response. These results demonstrate that BAP31 deficiency increased Tunicamycin-induced ER stress, impaired VLDL secretion and exogenous lipid clearance, and reduced fatty acid β-oxidation, which eventually resulted in liver steatosis.
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Affiliation(s)
- Zhenhua Wu
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang 110169, China.
| | - Fan Yang
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang 110169, China.
| | - Shan Jiang
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang 110169, China.
| | - Xiaoyu Sun
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang 110169, China.
| | - Jialin Xu
- Institute of Biochemistry and Molecular Biology, College of Life and Health Sciences, Northeastern University, Shenyang 110169, China.
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Banerjee A, Banerjee V, Czinn S, Blanchard T. Increased reactive oxygen species levels cause ER stress and cytotoxicity in andrographolide treated colon cancer cells. Oncotarget 2018; 8:26142-26153. [PMID: 28412728 PMCID: PMC5432246 DOI: 10.18632/oncotarget.15393] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 01/30/2017] [Indexed: 01/01/2023] Open
Abstract
Chemotherapy continues to play an essential role in the management of many cancers including colon cancer, the third leading cause of death due to cancer in the United States. Many naturally occurring plant compounds have been demonstrated to possess anti-cancer cell activity and have the potential to supplement existing chemotherapy strategies. The plant metabolite andrographolide induces cell death in cancer cells and apoptosis is dependent upon the induction of endoplasmic reticulum stress (ER stress) leading to the unfolded protein response (UPR). The goal of the present study was to determine the mechanism by which andrographolide induces ER stress and to further evaluate its role in promoting cell death pathways. The T84 and COLO 205 cancer cell lines were used to demonstrate that andrographolide induces increased ROS levels, corresponding anti-oxidant response molecules, and reduced mitochondrial membrane potential. No increases in ROS levels were detected in control colon fibroblast cells. Andrographolide-induced cell death, UPR signaling, and CHOP, Bax, and caspase 3 apoptosis elements were all inhibited in the presence of the ROS scavenger NAC. Additionally, andrographolide-induced suppression of cyclins B1 and D1 were also reversed in the presence of NAC. Finally, Akt phosphorylation and phospho-mTOR levels that are normally suppressed by andrographolide were also expressed at normal levels in the absence of ROS. These data demonstrate that andrographolide induces ER stress leading to apoptosis through the induction of ROS and that elevated ROS also play an important role in down-regulating cell cycle progression and cell survival pathways as well.
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Affiliation(s)
- Aditi Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Vivekjyoti Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Steven Czinn
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Thomas Blanchard
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
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Interplay between P-Glycoprotein Expression and Resistance to Endoplasmic Reticulum Stressors. Molecules 2018; 23:molecules23020337. [PMID: 29415493 PMCID: PMC6017601 DOI: 10.3390/molecules23020337] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 01/30/2018] [Accepted: 02/01/2018] [Indexed: 12/13/2022] Open
Abstract
Multidrug resistance (MDR) is a phenotype of cancer cells with reduced sensitivity to a wide range of unrelated drugs. P-glycoprotein (P-gp)—a drug efflux pump (ABCB1 member of the ABC transporter gene family)—is frequently observed to be a molecular cause of MDR. The drug-efflux activity of P-gp is considered as the underlying mechanism of drug resistance against P-gp substrates and results in failure of cancer chemotherapy. Several pathological impulses such as shortages of oxygen and glucose supply, alterations of calcium storage mechanisms and/or processes of protein N-glycosylation in the endoplasmic reticulum (ER) leads to ER stress (ERS), characterized by elevation of unfolded protein cell content and activation of the unfolded protein response (UPR). UPR is responsible for modification of protein folding pathways, removal of misfolded proteins by ER associated protein degradation (ERAD) and inhibition of proteosynthesis. However, sustained ERS may result in UPR-mediated cell death. Neoplastic cells could escape from the death pathway induced by ERS by switching UPR into pro survival mechanisms instead of apoptosis. Here, we aimed to present state of the art information about consequences of P-gp expression on mechanisms associated with ERS development and regulation of the ERAD system, particularly focused on advances in ERS-associated therapy of drug resistant malignancies.
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48
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Wang X, Xiong W, Tang Y. Tunicamycin suppresses breast cancer cell growth and metastasis via regulation of the protein kinase B/nuclear factor-κB signaling pathway. Oncol Lett 2018. [PMID: 29541178 PMCID: PMC5835892 DOI: 10.3892/ol.2018.7874] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is one of the most common metastatic tumor types. Reports have suggested that Tunicamycin may inhibit the aggressiveness of cancer cells by promoting their apoptosis. In the present study, the inhibitory effects of Tunicamycin were investigated and the potential molecular mechanism underlying the Tunicamycin-inhibited growth and aggressiveness of breast cancer cells was explored. In vitro assays demonstrated that Tunicamycin significantly inhibited growth and arrested the cell cycle of breast cancer cells in a dose-dependent manner, compared with control cells. Results revealed that Tunicamycin treatment suppressed the migration and invasion of breast cancer cells. Significantly increased apoptosis of breast cancer cells was observed subsequent to Tunicamycin treatment, as compared with control cells. Mechanism analysis demonstrated that Tunicamycin inhibited the protein kinase B (Akt) and nuclear factor-κB (NF-κB) signaling pathways, whilst Akt overexpression significantly cancelled out the Tunicamycin-inhibited growth and aggressiveness of breast cancer cells, as compared with control cells. In vivo assays revealed that Tunicamycin treatment significantly inhibited tumor growth and significantly prolonged the survival of tumor-bearing mice, compared with the PBS-treated group. In conclusion, these results indicate that Tunicamycin may inhibit the growth and aggressiveness of breast cancer cells via regulation of the Akt/NF-κB signaling pathway.
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Affiliation(s)
- Xiaoli Wang
- Radiotherapy Department, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Wei Xiong
- Radiotherapy Department, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Yiyin Tang
- The First Department of Mammary Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
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49
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Banerjee A, Ahmed H, Yang P, Czinn SJ, Blanchard TG. Endoplasmic reticulum stress and IRE-1 signaling cause apoptosis in colon cancer cells in response to andrographolide treatment. Oncotarget 2018; 7:41432-41444. [PMID: 27166181 PMCID: PMC5173070 DOI: 10.18632/oncotarget.9180] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 04/23/2016] [Indexed: 12/13/2022] Open
Abstract
The plant metabolite andrographolide induces cell cycle arrest and apoptosis in cancer cells. The mechanism(s) by which andrographolide induces apoptosis however, have not been elucidated. The present study was performed to determine the molecular events that promote apoptosis in andrographolide treated cells using T84, HCT116 and COLO 205 colon cancer cell lines. Andrographolide was determined to limit colony formation and Ki67 expression, alter nuclear morphology, increase cytoplasmic histone-associated-DNA-fragments, and increase cleaved caspase-3 levels. Andrographolide also induced significantly higher expression of endoplasmic reticulum (ER) stress proteins GRP-78 and IRE-1 by 48 h but not PERK or ATF6. Apoptosis signaling molecules BAX, spliced XBP-1 and CHOP were also significantly increased. Moreover, chemical inhibition of ER stress or IRE-1 depletion with siRNA in andrographolide treated cells significantly limited expression of IRE-1 and CHOP as determined by immunofluorescence staining, real time PCR, or immunobloting. This was accompanied by a decreased BAX/Bcl-2 ratio. Andrographolide significantly promotes cancer cell death compared to normal cells. These data demonstrate that andrographolide associated ER stress contributes to apoptosis through the activation of a pro-apoptotic GRP-78/IRE-1/XBP-1/CHOP signaling pathway.
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Affiliation(s)
- Aditi Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | | | - Peixin Yang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Steven J Czinn
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Thomas G Blanchard
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
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50
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Xing Y, Ge Y, Liu C, Zhang X, Jiang J, Wei Y. ER stress inducer tunicamycin suppresses the self-renewal of glioma-initiating cell partly through inhibiting Sox2 translation. Oncotarget 2017; 7:36395-36406. [PMID: 27119230 PMCID: PMC5095008 DOI: 10.18632/oncotarget.8954] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 04/11/2016] [Indexed: 11/25/2022] Open
Abstract
Glioma-initiating cells possess tumor-initiating potential and are relatively resistant to conventional chemotherapy and irradiation. Therefore, their elimination is an essential factor for the development of efficient therapy. Here, we report that endoplasmic reticulum (ER) stress inducer tunicamycin inhibits glioma-initiating cell self-renewal as determined by neurosphere formation assay. Moreover, tunicamycin decreases the efficiency of glioma-initiating cell to initiate tumor formation. Although tunicamycin induces glioma-initiating cell apoptosis, apoptosis inhibitor z-VAD-fmk only partly abrogates the reduction in glioma-initiating cell self-renewal induced by tunicamycin. Indeed, tunicamycin reduces the expression of self-renewal regulator Sox2 at translation level. Overexpression of Sox2 obviously abrogates the reduction in glioma-initiating cell self-renewal induced by tunicamycin. Taken together, tunicamycin suppresses the self-renewal and tumorigenic potential of glioma-initiating cell partly through reducing Sox2 translation. This finding provides a cue to potential effective treatment of glioblastoma through controlling stem cells.
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Affiliation(s)
- Yang Xing
- Key Laboratory of Glycoconjuates Research, Ministry of Public Health, Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Shanghai, People's Republic of China
| | - Yuqing Ge
- Key Laboratory of Glycoconjuates Research, Ministry of Public Health, Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Shanghai, People's Republic of China
| | - Chanjuan Liu
- Key Laboratory of Glycoconjuates Research, Ministry of Public Health, Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Shanghai, People's Republic of China
| | - Xiaobiao Zhang
- Division of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Jianhai Jiang
- Key Laboratory of Glycoconjuates Research, Ministry of Public Health, Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Shanghai, People's Republic of China
| | - Yuanyan Wei
- Key Laboratory of Glycoconjuates Research, Ministry of Public Health, Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Shanghai, People's Republic of China
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