1
|
Kim M, Park JH, Go M, Lee N, Seo J, Lee H, Kim D, Ha H, Kim T, Jeong MS, Kim S, Kim T, Kim HS, Kang D, Shim H, Lee SY. RUFY4 deletion prevents pathological bone loss by blocking endo-lysosomal trafficking of osteoclasts. Bone Res 2024; 12:29. [PMID: 38744829 DOI: 10.1038/s41413-024-00326-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 02/01/2024] [Accepted: 03/08/2024] [Indexed: 05/16/2024] Open
Abstract
Mature osteoclasts degrade bone matrix by exocytosis of active proteases from secretory lysosomes through a ruffled border. However, the molecular mechanisms underlying lysosomal trafficking and secretion in osteoclasts remain largely unknown. Here, we show with GeneChip analysis that RUN and FYVE domain-containing protein 4 (RUFY4) is strongly upregulated during osteoclastogenesis. Mice lacking Rufy4 exhibited a high trabecular bone mass phenotype with abnormalities in osteoclast function in vivo. Furthermore, deleting Rufy4 did not affect osteoclast differentiation, but inhibited bone-resorbing activity due to disruption in the acidic maturation of secondary lysosomes, their trafficking to the membrane, and their secretion of cathepsin K into the extracellular space. Mechanistically, RUFY4 promotes late endosome-lysosome fusion by acting as an adaptor protein between Rab7 on late endosomes and LAMP2 on primary lysosomes. Consequently, Rufy4-deficient mice were highly protected from lipopolysaccharide- and ovariectomy-induced bone loss. Thus, RUFY4 plays as a new regulator in osteoclast activity by mediating endo-lysosomal trafficking and have a potential to be specific target for therapies against bone-loss diseases such as osteoporosis.
Collapse
Affiliation(s)
- Minhee Kim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Jin Hee Park
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea
| | - Miyeon Go
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Nawon Lee
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Jeongin Seo
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Hana Lee
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, South Korea
| | - Doyong Kim
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, South Korea
| | - Hyunil Ha
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon, 34054, South Korea
| | - Taesoo Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon, 34054, South Korea
| | - Myeong Seon Jeong
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, South Korea
| | - Suree Kim
- Fluorescence Core Imaging Center and Bioimaging Data Curation Center, Ewha Womans University, Seoul, 03760, South Korea
| | - Taesoo Kim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea
- Multitasking Macrophage Research Center, Ewha Womans University, Seoul, 03760, South Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, South Korea
| | - Dongmin Kang
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
- Fluorescence Core Imaging Center and Bioimaging Data Curation Center, Ewha Womans University, Seoul, 03760, South Korea
| | - Hyunbo Shim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea.
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea.
- Multitasking Macrophage Research Center, Ewha Womans University, Seoul, 03760, South Korea.
| |
Collapse
|
2
|
Kim J, Ryu G, Seo J, Go M, Kim G, Yi S, Kim S, Lee H, Lee JY, Kim HS, Park MC, Shin DH, Shim H, Kim W, Lee SY. 5-aminosalicylic acid suppresses osteoarthritis through the OSCAR-PPARγ axis. Nat Commun 2024; 15:1024. [PMID: 38310093 PMCID: PMC10838344 DOI: 10.1038/s41467-024-45174-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 01/16/2024] [Indexed: 02/05/2024] Open
Abstract
Osteoarthritis (OA) is a progressive and irreversible degenerative joint disease that is characterized by cartilage destruction, osteophyte formation, subchondral bone remodeling, and synovitis. Despite affecting millions of patients, effective and safe disease-modifying osteoarthritis drugs are lacking. Here we reveal an unexpected role for the small molecule 5-aminosalicylic acid (5-ASA), which is used as an anti-inflammatory drug in ulcerative colitis. We show that 5-ASA competes with extracellular-matrix collagen-II to bind to osteoclast-associated receptor (OSCAR) on chondrocytes. Intra-articular 5-ASA injections ameliorate OA generated by surgery-induced medial-meniscus destabilization in male mice. Significantly, this effect is also observed when 5-ASA was administered well after OA onset. Moreover, mice with DMM-induced OA that are treated with 5-ASA at weeks 8-11 and sacrificed at week 12 have thicker cartilage than untreated mice that were sacrificed at week 8. Mechanistically, 5-ASA reverses OSCAR-mediated transcriptional repression of PPARγ in articular chondrocytes, thereby suppressing COX-2-related inflammation. It also improves chondrogenesis, strongly downregulates ECM catabolism, and promotes ECM anabolism. Our results suggest that 5-ASA could serve as a DMOAD.
Collapse
Affiliation(s)
- Jihee Kim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Republic of Korea
| | - Gina Ryu
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Jeongmin Seo
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Miyeon Go
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Gyungmin Kim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Sol Yi
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Suwon Kim
- Department of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Hana Lee
- Department of Biomedical Engineering, Yonsei University, Wonju, Republic of Korea
| | - June-Yong Lee
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Yonsei University, Wonju, Republic of Korea
| | - Min-Chan Park
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong Hae Shin
- Department of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Hyunbo Shim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Wankyu Kim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea.
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Republic of Korea.
- Multitasking Macrophage Research Center, Ewha Womans University, Seoul, Republic of Korea.
| |
Collapse
|
3
|
Kim GM, Park DR, Nguyen TTH, Kim J, Kim J, Sohn MH, Lee WK, Lee SY, Shim H. Development of Anti-OSCAR Antibodies for the Treatment of Osteoarthritis. Biomedicines 2023; 11:2844. [PMID: 37893216 PMCID: PMC10604876 DOI: 10.3390/biomedicines11102844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Osteoarthritis (OA) is the most common joint disease that causes local inflammation and pain, significantly reducing the quality of life and normal social activities of patients. Currently, there are no disease-modifying OA drugs (DMOADs) available, and treatment relies on pain relief agents or arthroplasty. To address this significant unmet medical need, we aimed to develop monoclonal antibodies that can block the osteoclast-associated receptor (OSCAR). Our recent study has revealed the importance of OSCAR in OA pathogenesis as a novel catabolic regulator that induces chondrocyte apoptosis and accelerates articular cartilage destruction. It was also shown that blocking OSCAR with a soluble OSCAR decoy receptor ameliorated OA in animal models. In this study, OSCAR-neutralizing monoclonal antibodies were isolated and optimized by phage display. These antibodies bind to and directly neutralize OSCAR, unlike the decoy receptor, which binds to the ubiquitously expressed collagen and may result in reduced efficacy or deleterious off-target effects. The DMOAD potential of the anti-OSCAR antibodies was assessed with in vitro cell-based assays and an in vivo OA model. The results demonstrated that the anti-OSCAR antibodies significantly reduced cartilage destruction and other OA signs, such as subchondral bone plate sclerosis and loss of hyaline cartilage. Hence, blocking OSCAR with a monoclonal antibody could be a promising treatment strategy for OA.
Collapse
Affiliation(s)
- Gyeong Min Kim
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea; (G.M.K.); (D.R.P.); (T.T.H.N.); (J.K.); (J.K.)
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Doo Ri Park
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea; (G.M.K.); (D.R.P.); (T.T.H.N.); (J.K.); (J.K.)
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Thi Thu Ha Nguyen
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea; (G.M.K.); (D.R.P.); (T.T.H.N.); (J.K.); (J.K.)
| | - Jiseon Kim
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea; (G.M.K.); (D.R.P.); (T.T.H.N.); (J.K.); (J.K.)
| | - Jihee Kim
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea; (G.M.K.); (D.R.P.); (T.T.H.N.); (J.K.); (J.K.)
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Myung-Ho Sohn
- New Drug Development Center, Osong Medical Innovation Foundation, Cheongju 28160, Republic of Korea; (M.-H.S.); (W.-K.L.)
| | - Won-Kyu Lee
- New Drug Development Center, Osong Medical Innovation Foundation, Cheongju 28160, Republic of Korea; (M.-H.S.); (W.-K.L.)
| | - Soo Young Lee
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea; (G.M.K.); (D.R.P.); (T.T.H.N.); (J.K.); (J.K.)
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hyunbo Shim
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea; (G.M.K.); (D.R.P.); (T.T.H.N.); (J.K.); (J.K.)
| |
Collapse
|
4
|
Nguyen TTH, Lee JS, Shim H. Construction of Rabbit Immune Antibody Libraries. Methods Mol Biol 2023; 2702:93-106. [PMID: 37679617 DOI: 10.1007/978-1-0716-3381-6_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Rabbits have distinct advantages over mice as a source of target-specific antibodies. They produce higher affinity antibodies than mice and may elicit strong immune response against antigens or epitopes that are poorly immunogenic or tolerated in mice. However, a great majority of currently available monoclonal antibodies are of murine origin because of the wider availability of murine fusion partner cell lines and well-established tools and protocols for fusion and cloning of mouse hybridoma. Phage display selection of antibody libraries is an alternative method to hybridoma technology for the generation of target-specific monoclonal antibodies. High-affinity monoclonal antibodies from non-murine species can readily be obtained by constructing immune antibody libraries from B cells of the immunized animal and screening the library by phage display. In this article, we describe the construction of a rabbit immune Fab library for the facile isolation of rabbit monoclonal antibodies. After immunization, B-cell cDNA is obtained from the spleen of the animal, from which antibody variable domain repertoires are amplified and assembled into a Fab repertoire by PCR. The Fab genes are then cloned into a phagemid vector and transformed to E. coli, from which a phage-displayed immune Fab library is rescued. Such a library can be biopanned against the immunization antigen for rapid identification of high-affinity, target-specific rabbit monoclonal antibodies.
Collapse
Affiliation(s)
| | | | - Hyunbo Shim
- Department of Life Sciences, Ewha Womans Univesity, Seoul, Korea.
| |
Collapse
|
5
|
Kim JW, Min SW, Lee J, Shin HG, Choi HL, Yang HR, Lee JH, Cho YB, Shim H, Lee S. Development and Characterization of Phage-Display-Derived Novel Human Monoclonal Antibodies against the Receptor Binding Domain of SARS-CoV-2. Biomedicines 2022; 10:biomedicines10123274. [PMID: 36552031 PMCID: PMC9775448 DOI: 10.3390/biomedicines10123274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has resulted in an ongoing global pandemic crisis, caused by the life-threatening illness coronavirus disease 2019 (COVID-19). Thus, the rapid development of monoclonal antibodies (mAbs) to cope with COVID-19 is urgently necessary. In this study, we used phage display to develop four human mAbs specific to the receptor-binding domain (RBD) of SARS-CoV-2. Our intensive in vitro functional analyses demonstrated that K102.1, an anti-SARS-CoV-2 RBD-specific mAb, exerted potent neutralizing activity against pseudoviral and live viral infection and the interaction between SARS-CoV-2 RBD and human angiotensin-converting enzyme 2. Monotherapy with K102.1 also revealed the therapeutic potential against SARS-CoV-2 infection in vivo. Further, this study developed a sandwich enzyme-linked immunosorbent assay with a non-competing mAb pair, K102.1 and K102.2, that accurately detected the RBDs of SARS-CoV-2 wild-type and variants with high sensitivity in the picomolar range. These findings suggest that the phage-display-based mAb selection from an established antibody library may be an effective strategy for the rapid development of mAbs against the constantly evolving SARS-CoV-2.
Collapse
Affiliation(s)
- Ji Woong Kim
- Department of Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Sung Won Min
- Research Center, SG Medical, Seoul 05548, Republic of Korea
| | - Jichul Lee
- Research Center, SG Medical, Seoul 05548, Republic of Korea
| | - Ha Gyeong Shin
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Hye Lim Choi
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Ha Rim Yang
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Ji Hyun Lee
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Yea Bin Cho
- Department of Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Hyunbo Shim
- Department of Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Sukmook Lee
- Department of Chemistry, Kookmin University, Seoul 02707, Republic of Korea
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea
- Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Republic of Korea
- Antibody Research Institute, Kookmin University, Seoul 02707, Republic of Korea
- Correspondence:
| |
Collapse
|
6
|
Cho YB, Kim JW, Heo K, Kim HJ, Yun S, Lee HS, Shin HG, Shim H, Yu H, Kim YH, Lee S. An internalizing antibody targeting of cell surface GRP94 effectively suppresses tumor angiogenesis of colorectal cancer. Biomed Pharmacother 2022; 150:113051. [PMID: 35658213 DOI: 10.1016/j.biopha.2022.113051] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/26/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022] Open
Abstract
Colorectal cancer (CRC) is one of the life-threatening malignancies worldwide. Thus, novel potential therapeutic targets and therapeutics for the treatment of CRC need to be identified to improve the clinical outcomes of patients with CRC. In this study, we found that glucose-regulated protein 94 (GRP94) is overexpressed in CRC tissues, and its high expression is correlated with increased microvessel density. Next, through phage display technology and consecutive in vitro functional isolations, we generated a novel human monoclonal antibody that specifically targets cell surface GRP94 and shows superior internalizing activity comparable to trastuzumab. We found that this antibody specifically inhibits endothelial cell tube formation and simultaneously promotes the downregulation of GRP94 expression on the endothelial cell surface. Finally, we demonstrated that this antibody effectively suppresses tumor growth and angiogenesis of HCT116 human CRC cells without causing severe toxicity in vivo. Collectively, these findings suggest that cell surface GRP94 is a novel potential anti-angiogenic target in CRC and that antibody targeting of GRP94 on the endothelial cell surface is an effective strategy to suppress CRC tumor angiogenesis.
Collapse
Affiliation(s)
- Yea Bin Cho
- Department of Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Ji Woong Kim
- Department of Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Kyun Heo
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea; Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Republic of Korea; Antibody Research Institute, Kookmin University, Seoul 02707, Republic of Korea
| | - Hyun Jung Kim
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea; Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Sumi Yun
- Samkwang Medical Laboratories, Department of Diagnostic Pathology, Seoul 06742, Republic of Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Ha Gyeong Shin
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea
| | - Hyunbo Shim
- Department of Life Science, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hanjin Yu
- HauulBio, Chuncheon, Gangwon 24398, Republic of Korea
| | - Yun-Hee Kim
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang 10408, Republic of Korea; Division of Convergence Technology, Research Institute of National Cancer Center, Goyang 10408, Republic of Korea
| | - Sukmook Lee
- Department of Chemistry, Kookmin University, Seoul 02707, Republic of Korea; Department of Biopharmaceutical Chemistry, Kookmin University, Seoul 02707, Republic of Korea; Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Republic of Korea; Antibody Research Institute, Kookmin University, Seoul 02707, Republic of Korea.
| |
Collapse
|
7
|
Piechura L, Yazdchi F, Harloff M, Shim H, Sharma N, Keshk M, Coppolino A, Rinewalt D, Mallidi H. Factors Associated with Very Long-Term Survival for Lung Transplant Recipients. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
8
|
Jeon S, Kim TK, Jeong SJ, Jung IH, Kim N, Lee MN, Sonn SK, Seo S, Jin J, Kweon HY, Kim S, Shim D, Park YM, Lee SH, Kim KW, Cybulsky MI, Shim H, Roh TY, Park WY, Lee HO, Choi JH, Park SH, Oh GT. Anti-Inflammatory Actions of Soluble Ninjurin-1 Ameliorate Atherosclerosis. Circulation 2020; 142:1736-1751. [PMID: 32883094 DOI: 10.1161/circulationaha.120.046907] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Macrophages produce many inflammation-associated molecules, released by matrix metalloproteinases, such as adhesion molecules, and cytokines, as well, which play a crucial role in atherosclerosis. In this context, we investigated the relationship between Ninjurin-1 (Ninj1 [nerve injury-induced protein]), a novel matrix metalloproteinase 9 substrate, expression, and atherosclerosis progression. METHODS Ninj1 expression and atherosclerosis progression were assessed in atherosclerotic aortic tissue and serum samples from patients with coronary artery disease and healthy controls, and atheroprone apolipoprotein e-deficient (Apoe-/-) and wild-type mice, as well. Apoe-/- mice lacking systemic Ninj1 expression (Ninj1-/-Apoe-/-) were generated to assess the functional effects of Ninj1. Bone marrow transplantation was also used to generate low-density lipoprotein receptor-deficient (Ldlr-/-) mice that lack Ninj1 specifically in bone marrow-derived cells. Mice were fed a Western diet for 5 to 23 weeks, and atherosclerotic lesions were investigated. The anti-inflammatory role of Ninj1 was verified by treating macrophages and mice with the peptides Ninj11-56 (ML56) and Ninj126-37 (PN12), which mimic the soluble form of Ninj1 (sNinj1). RESULTS Our in vivo results conclusively showed a correlation between Ninj1 expression in aortic macrophages and the extent of human and mouse atherosclerotic lesions. Ninj1-deficient macrophages promoted proinflammatory gene expression by activating mitogen-activated protein kinase and inhibiting the phosphoinositide 3-kinase/Akt signaling pathway. Whole-body and bone marrow-specific Ninj1 deficiencies significantly increased monocyte recruitment and macrophage accumulation in atherosclerotic lesions through elevated macrophage-mediated inflammation. Macrophage Ninj1 was directly cleaved by matrix metalloproteinase 9 to generate a soluble form that exhibited antiatherosclerotic effects, as assessed in vitro and in vivo. Treatment with the sNinj1-mimetic peptides, ML56 and PN12, reduced proinflammatory gene expression in human and mouse classically activated macrophages, thereby attenuating monocyte transendothelial migration. Moreover, continuous administration of mPN12 alleviated atherosclerosis by inhibiting the enhanced monocyte recruitment and inflammation characteristics of this disorder in mice, regardless of the presence of Ninj1. CONCLUSIONS Ninj1 is a novel matrix metalloproteinase 9 substrate in macrophages, and sNinj1 is a secreted atheroprotective protein that regulates macrophage inflammation and monocyte recruitment in atherosclerosis. Moreover, sNinj1-mediated anti-inflammatory effects are conserved in human macrophages and likely contribute to human atherosclerosis.
Collapse
Affiliation(s)
- Sejin Jeon
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Tae Kyeong Kim
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Se-Jin Jeong
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO (S.-J.J., I.-H.J.)
| | - In-Hyuk Jung
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO (S.-J.J., I.-H.J.)
| | - Nayoung Kim
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea (N.K., W.-Y.P., H.-O.L.).,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea (N.K., W.-Y.P., H.-O.L.)
| | - Mi-Ni Lee
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Seong-Keun Sonn
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Seungwoon Seo
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Jing Jin
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Hyae Yon Kweon
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Sinai Kim
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| | - Dahee Shim
- Department of Life Science, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Korea (D.S., J.-H.C.)
| | - Young Mi Park
- Department of Molecular Medicine, Ewha Womans University School of Medicine, Seoul, Korea (Y.M.P.)
| | - Sang-Hak Lee
- Division of Cardiology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea (S.-H.L.)
| | - Kyu-Won Kim
- College of Pharmacy, Seoul National University, Seoul, Korea (K.-W.K.)
| | - Myron I Cybulsky
- Toronto General Hospital Research Institute, University Health Network, and Department of Laboratory Medicine and Pathobiology, University of Toronto, ON, Canada (M.I.C.)
| | - Hyunbo Shim
- Departments of Bioinspired Science and Life Science (H.S.), Ewha Womans University, Seoul, Korea
| | - Tae-Young Roh
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Korea (T.-Y.R.)
| | - Woong-Yang Park
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea (N.K., W.-Y.P., H.-O.L.).,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea (N.K., W.-Y.P., H.-O.L.)
| | - Hae-Ock Lee
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea (N.K., W.-Y.P., H.-O.L.).,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea (N.K., W.-Y.P., H.-O.L.)
| | - Jae-Hoon Choi
- Department of Life Science, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Korea (D.S., J.-H.C.)
| | - Sung Ho Park
- School of Life Sciences, Ulsan National Institute of Science & Technology (UNIST), Ulsan, Korea (S.H.P.)
| | - Goo Taeg Oh
- Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences (S.J., T.K.K., M.-N.L., S.-K.S., S.S., J.J., H.Y.K., S.K., G.T.O.), Ewha Womans University, Seoul, Korea
| |
Collapse
|
9
|
Gala S, Shim H, Jeon S, Euh Y, Lee K, Kwon K. PMD5 Evaluation of Cost Analysis of the Midline Catheter Versus Peripherally Inserted Central Catheter in Korea in the Inpatient Setting. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
10
|
Park DR, Kim J, Kim GM, Lee H, Kim M, Hwang D, Lee H, Kim HS, Kim W, Park MC, Shim H, Lee SY. Osteoclast-associated receptor blockade prevents articular cartilage destruction via chondrocyte apoptosis regulation. Nat Commun 2020; 11:4343. [PMID: 32859940 PMCID: PMC7455568 DOI: 10.1038/s41467-020-18208-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 08/07/2020] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA), primarily characterized by articular cartilage destruction, is the most common form of age-related degenerative whole-joint disease. No disease-modifying treatments for OA are currently available. Although OA is primarily characterized by cartilage destruction, our understanding of the processes controlling OA progression is poor. Here, we report the association of OA with increased levels of osteoclast-associated receptor (OSCAR), an immunoglobulin-like collagen-recognition receptor. In mice, OSCAR deletion abrogates OA manifestations, such as articular cartilage destruction, subchondral bone sclerosis, and hyaline cartilage loss. These effects are a result of decreased chondrocyte apoptosis, which is caused by the tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) in induced OA. Treatments with human OSCAR-Fc fusion protein attenuates OA pathogenesis caused by experimental OA. Thus, this work highlights the function of OSCAR as a catabolic regulator of OA pathogenesis, indicating that OSCAR blockade is a potential therapy for OA. Osteoarthritis (OA) is associated with cartilage disruption, but the underlying mechanisms remain unclear. Here, the authors show that expression of osteoclast-associated receptor (OSCAR) is associated with OA, that its genetic ablation or targeting with OSCAR-Fc fusion protein ameliorates OA in mice by decreasing chondrocyte apoptosis.
Collapse
Affiliation(s)
- Doo Ri Park
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea
| | - Jihee Kim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea
| | - Gyeong Min Kim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea
| | - Haeseung Lee
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Minhee Kim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea
| | - Donghyun Hwang
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, South Korea
| | - Hana Lee
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, South Korea
| | - Han-Sung Kim
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, South Korea
| | - Wankyu Kim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Min Chan Park
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, 06273, South Korea
| | - Hyunbo Shim
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul, 03760, South Korea. .,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, South Korea.
| |
Collapse
|
11
|
Lee Y, Kim S, Kim M, Kim BS, Jeong E, Shim H, Won CW. A later menopausal age is associated with a lower prevalence of physical frailty in community-dwelling older adults: The Korean Frailty and Aging Cohort Study (KFACS). Arch Gerontol Geriatr 2020; 91:104243. [PMID: 32916429 DOI: 10.1016/j.archger.2020.104243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/04/2020] [Accepted: 08/24/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The aim of this study was to determine whether age at menopause is associated with physical frailty. METHODS This was a cross-sectional study that included 1264 women (70-84 years) from the Korean and Aging Cohort Study (KFACS) who had records of their ages at menarche and their ages at menopause and had experienced a natural menopause. We used Fried criteria to assess physical frailty status. The ages at menopause and menarche were collected using self-reported questionnaires. RESULTS The prevalence of physical frailty decreased by 5.3 % with each year of increase in age at menopause after adjusting for age, marital status, years of education, diabetes mellitus, hypertension, polypharmacy, hospitalizations, falls, and hormone replacement therapy (p = 0.005). The prevalence of frailty significantly decreased by 4.1 % when the reproductive span increased by a year (p = 0.019). CONCLUSIONS This study found that a later menopausal age was associated with a lower risk of frailty using Fried criteria. In addition, it showed that a longer reproductive span was associated with a lower prevalence of frailty.
Collapse
Affiliation(s)
- Y Lee
- Department of Family Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - S Kim
- Department of Family Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - M Kim
- Department of Biomedical Science and Technology, College of Medicine, East-West Medical Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - B S Kim
- Department of Family Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - E Jeong
- Department of Family Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - H Shim
- Department of Family Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - C W Won
- Elderly Frailty Research Center, Department of Family Medicine, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.
| |
Collapse
|
12
|
Kim DG, Nguyen TTH, Kwon NH, Sung J, Lim S, Kang EJ, Lee J, Seo WY, Kim A, Chang YS, Shim H, Kim S. An Isoform of the Oncogenic Splice Variant AIMP2-DX2 Detected by a Novel Monoclonal Antibody. Biomolecules 2020; 10:biom10060820. [PMID: 32471182 PMCID: PMC7356629 DOI: 10.3390/biom10060820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 11/16/2022] Open
Abstract
AIMP2-DX2, an exon 2-deleted splice variant of AIMP2 (aminoacyl-tRNA synthetase-interacting multifunctional protein 2), is highly expressed in lung cancer and involved in tumor progression in vivo. Oncogenic function of AIMP2-DX2 and its correlation with poor prognosis of cancer patients have been well established; however, the application of this potentially important biomarker to cancer research and diagnosis has been hampered by a lack of antibodies specific for the splice variant, possibly due to the poor immunogenicity and/or stability of AIMP2-DX2. In this study a monoclonal antibody, H5, that specifically recognizes AIMP2-DX2 and its isoforms was generated via rabbit immunization and phage display techniques, using a short peptide corresponding to the exon 1/3 junction sequence as an antigen. Furthermore, based on mutagenesis, limited cleavage, and mass spectrometry studies, it is also suggested that the endogenous isoform of AIMP2-DX2 recognized by H5 is produced by proteolytic cleavage of 33 amino acids from N-terminus and is capable of inducing cell proliferation similarly to the uncleaved protein. H5 monoclonal antibody is applicable to enzyme-linked immunosorbent assay, immunoblot, immunofluorescence, and immunohistochemistry, and expected to be a valuable tool for detecting AIMP2-DX2 with high sensitivity and specificity for research and diagnostic purposes.
Collapse
Affiliation(s)
- Dae Gyu Kim
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
| | - Thi Thu Ha Nguyen
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea;
| | - Nam Hoon Kwon
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
| | - Junsik Sung
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
| | - Semi Lim
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
| | - Eun-Joo Kang
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
| | - Jihye Lee
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
| | - Woo Young Seo
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
| | - Arum Kim
- Department of Internal Medicine, Yonsei University College of Medicine, 63 Gil-20, Eonju-ro, Gangnam-gu, Seoul 06229, Korea; (A.K.); (Y.S.C.)
| | - Yoon Soo Chang
- Department of Internal Medicine, Yonsei University College of Medicine, 63 Gil-20, Eonju-ro, Gangnam-gu, Seoul 06229, Korea; (A.K.); (Y.S.C.)
| | - Hyunbo Shim
- Department of Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea;
- Correspondence: (H.S.); (S.K.)
| | - Sunghoon Kim
- Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea; (D.G.K.); (N.H.K.); (J.S.); (S.L.); (E.-J.K.); (J.L.); (W.Y.S.)
- Correspondence: (H.S.); (S.K.)
| |
Collapse
|
13
|
Jeoung MH, Kim TK, Kim JW, Cho YB, Na HJ, Yoo BC, Shim H, Song DK, Heo K, Lee S. Antibody-Based Targeting of Cell Surface GRP94 Specifically Inhibits Cetuximab-Resistant Colorectal Cancer Growth. Biomolecules 2019; 9:biom9110681. [PMID: 31683810 PMCID: PMC6920916 DOI: 10.3390/biom9110681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/21/2019] [Accepted: 10/27/2019] [Indexed: 12/19/2022] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer death worldwide. Cetuximab, a human/mouse chimeric monoclonal antibody, is effective in a limited number of CRC patients because of cetuximab resistance. This study aimed to identify novel therapeutic targets in cetuximab-resistant CRC in order to improve clinical outcomes. Through phage display technology, we isolated a fully human antibody strongly binding to the cetuximab-resistant HCT116 cell surface and identified the target antigen as glucose-regulated protein 94 (GRP94) using proteomic analysis. Short interfering RNA-mediated GRP94 knockdown showed that GRP94 plays a key role in HCT116 cell growth. In vitro functional studies revealed that the GRP94-blocking antibody we developed strongly inhibits the growth of various cetuximab-resistant CRC cell lines. We also demonstrated that GRP94 immunoglobulin G monotherapy significantly reduces HCT116 cell growth more potently compared to cetuximab, without severe toxicity in vivo. Therefore, cell surface GRP94 might be a potential novel therapeutic target in cetuximab-resistant CRC, and antibody-based targeting of GRP94 might be an effective strategy to suppress GRP94-expressing cetuximab-resistant CRC.
Collapse
Affiliation(s)
- Mee Hyun Jeoung
- Scripps Korea Antibody Institute, Chuncheon, Gangwon 24341, Korea.
| | - Taek-Keun Kim
- Scripps Korea Antibody Institute, Chuncheon, Gangwon 24341, Korea.
| | - Ji Woong Kim
- Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Korea.
| | - Yea Bin Cho
- Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Korea.
| | - Hee Jun Na
- Scripps Korea Antibody Institute, Chuncheon, Gangwon 24341, Korea.
| | - Byong Chul Yoo
- Research Institute, National Cancer Center, Goyang, Gyeonggi 10408, Korea.
| | - Hyunbo Shim
- Department of Bioinspired Science and Life Science, Ewha Womans University, Seoul 03760, Korea.
| | - Dong-Keun Song
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon, Gangwon 24252, Korea.
| | - Kyun Heo
- Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Korea.
| | - Sukmook Lee
- Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Korea.
| |
Collapse
|
14
|
Lei Y, Shu HK, Tian S, Wang T, Liu T, Mao H, Shim H, Curran WJ, Yang X. Pseudo CT Estimation using Patch-based Joint Dictionary Learning. Annu Int Conf IEEE Eng Med Biol Soc 2019; 2018:5150-5153. [PMID: 30441499 DOI: 10.1109/embc.2018.8513475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Magnetic resonance (MR) simulators have recently gained popularity; it avoids the unnecessary radiation exposure associated with Computed Tomography (CT) when used for radiation therapy planning. We propose a method for pseudo CT estimation from MR images based on joint dictionary learning. Patient-specific anatomical features were extracted from the aligned training images and adopted as signatures for each voxel. The most relevant and informative features were identified to train the joint dictionary learning-based model. The well-trained dictionary was used to predict the pseudo CT of a new patient. This prediction technique was validated with a clinical study of 12 patients with MR and CT images of the brain. The mean absolute error (MAE), peak signal-to-noise ratio (PSNR), normalized cross correlation (NCC) indexes were used to quantify the prediction accuracy. We compared our proposed method with a state-of-the-art dictionary learning method. Overall our proposed method significantly improves the prediction accuracy over the state-of-the-art dictionary learning method. We have investigated a novel joint dictionary Iearning- based approach to predict CT images from routine MRIs and demonstrated its reliability. This CT prediction technique could be a useful tool for MRI-based radiation treatment planning or attenuation correction for quantifying PET images for PET/MR imaging.
Collapse
|
15
|
Shim H, Rose J, Halle S, Shekane P. Complex regional pain syndrome: a narrative review for the practising clinician. Br J Anaesth 2019; 123:e424-e433. [PMID: 31056241 DOI: 10.1016/j.bja.2019.03.030] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 02/25/2019] [Accepted: 03/22/2019] [Indexed: 12/15/2022] Open
Abstract
Complex regional pain syndrome (CRPS) is a life-altering condition that usually affects the extremities after a trauma or nerve injury. The physiologic changes that occur as a result of the inciting injury are complex, as the name of the syndrome implies. The pain and disability associated with CRPS often lead to psychological co-morbidities that create a vicious cycle of pain, isolation, and depression. We review recent developments in the understanding of CRPS and advancements in management of this syndrome. Further research in targeting specific mechanisms involved in the pathophysiology of CRPS should lead to prevention of this condition.
Collapse
Affiliation(s)
- H Shim
- Icahn School of Medicine at Mount Sinai West and St. Luke's Hospitals, Department of Anesthesiology, Perioperative and Pain Medicine, New York, NY, USA
| | - J Rose
- Icahn School of Medicine at Mount Sinai West and St. Luke's Hospitals, Department of Anesthesiology, Perioperative and Pain Medicine, New York, NY, USA
| | - S Halle
- Icahn School of Medicine at Mount Sinai West and St. Luke's Hospitals, Department of Anesthesiology, Perioperative and Pain Medicine, New York, NY, USA
| | - P Shekane
- Icahn School of Medicine at Mount Sinai West and St. Luke's Hospitals, Department of Anesthesiology, Perioperative and Pain Medicine, New York, NY, USA.
| |
Collapse
|
16
|
Shim H, Kang C. Effect of Thermo-Mechanical Treatment on the Microstructure Evaluation and Mechanical Properties of Fe-20Mn-12Cr-3Ni-3Si Damping Alloy. Materials (Basel) 2019; 12:ma12071119. [PMID: 30987310 PMCID: PMC6479780 DOI: 10.3390/ma12071119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 03/31/2019] [Accepted: 04/02/2019] [Indexed: 06/09/2023]
Abstract
This study was carried out to investigate the effect of thermo-mechanical treatment on the microstructure of Fe-20Mn-12Cr-3Ni-3Si damping alloy. Dislocation, α', and ε-martensite were formed by thermo-mechanical treatment. The intersections of the surface relief and specific direction due to martensitic transformation were generated by thermo-mechanical treatment. They were then reversed to austenite with an ultra-fine grain size of less than 5 μm by annealing treatment at 700°C for 20min. The volume fractions of dislocation, α', and ε-martensite were increased with the cycle number of thermo-mechanical treatment. In five-cycle number thermo-mechanical treated specimens, more than 45% of the volume fraction of ε-martensite and less than 3% of the volume fraction of α΄-martensite were attained. Therefore, in this article, the effect of thermo-mechanical treatment is briefly introduced, and these phenomena are explained in terms of the grain refinement of austenite, α', and ε-martensite distribution and homogeneous dislocation distribution.
Collapse
Affiliation(s)
- Hyunbo Shim
- Heavy Plate R&D Team, Hyundai Steel, Dangjin 31719, Korea.
| | - Changyong Kang
- Department of Metallurgical Engineering, Pukyong National University, Busan 5991, Korea.
| |
Collapse
|
17
|
Yang X, Lei Y, Wang T, Patel P, Jiang X, Liu T, Dhabaan A, Shim H, Mao H, Curran W, Jani A. MRI-Based Synthetic CT for Radiation Treatment of Prostate Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
18
|
Gallo H, Shim H, Wilber K, Ailshire J. IMPLICATIONS OF SOCIAL MEDIA VERSUS IN-PERSON COMMUNICATION FOR FEELINGS OF LONELINESS AMONG OLDER ADULTS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - H Shim
- University of Southern California
| | - K Wilber
- University of Southern California
| | | |
Collapse
|
19
|
Affiliation(s)
- H Shim
- University of Southern California
| | - E Crimmins
- University of Southern California, Los Angeles, CA, USA
| | | |
Collapse
|
20
|
Abstract
BACKGROUND Antibody phage display is a major technological platform for the generation of fully human antibodies for therapeutic purposes. The in vitro binder selection by phage display allows researchers to have more extensive control over binding parameters and facilitates the isolation of clinical candidate antibodies with desired binding and/or functional profiles. METHODS Since the invention of antibody phage display in late 1980s, significant technological advancements in the design, construction, and selection of the antibody libraries have been made, and several fully human antibodies generated by phage display are currently approved or in various clinical development stages. RESULTS In this review, the background and details of antibody phage display technology, and representative antibody libraries with natural or synthetic sequence diversity and different construction strategies are described. The generation, optimization, functional and biophysical properties, and preclinical and clinical developments of some of the phage display-derived therapeutic antibodies approved for use in patients or in late-stage clinical trials are also discussed. CONCLUSION With evolving novel disease targets and therapeutic strategies, antibody phage display is expected to continue to play a central role in the development of the next generation of therapeutic antibodies.
Collapse
Affiliation(s)
- Hyunbo Shim
- Departments of Bioinspired Science and Life Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| |
Collapse
|
21
|
Shim H, Ma C, Al-Farhan H, Aldarmaki AK, Pang J, Seow C, Fedorak R, Devlin S, Dieleman LA, Kaplan GG, Novak KL, Kroeker KI, Halloran BP, Panaccione R. A107 POSTOPERATIVE OUTCOMES AMONG USTEKINUMAB TREATED CROHN’S DISEASE PATIENTS: A MULTICENTRE CANADIAN PROVINCIAL EXPERIENCE. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- H Shim
- Gastroenterology and Hepatology, University of Calgary, Calgary, AB, Canada
| | - C Ma
- University of Calgary, Calgary, AB, Canada
| | - H Al-Farhan
- Gastroenterology and Hepatology, University of Calgary, Calgary, AB, Canada
| | - A K Aldarmaki
- Gastroenterology and Hepatology, University of Calgary, Calgary, AB, Canada
| | - J Pang
- University of Calgary, Calgary, AB, Canada
| | - C Seow
- Medicine, University of Calgary, Calgary, AB, Canada
| | - R Fedorak
- Los Alamos National Laboratory, Edmonton, AB, Canada
| | - S Devlin
- University of Calgary, Calgary, AB, Canada
| | - L A Dieleman
- Medicine, University of Alberta, Edmonton, AB, Canada
| | - G G Kaplan
- Medicine and Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - K L Novak
- Gastroenterology, University of Calgary, Calgary AB, Canada
| | - K I Kroeker
- Medicine, University of Alberta, Edmonton, AB, Canada
| | - B P Halloran
- Medicine, Divison of Gastroenterology, University Of Alberta, Edmonton, AB, Canada
| | | |
Collapse
|
22
|
Abstract
Rabbits have distinct advantages over mice as a source of target-specific antibodies. They produce higher affinity antibodies than mice, and may elicit strong immune response against antigens or epitopes that are poorly immunogenic or tolerated in mice. However, a great majority of currently available monoclonal antibodies are of murine origin because of the wider availability of murine fusion partner cell lines and well-established tools and protocols for fusion and cloning of mouse hybridoma. Phage-display selection of antibody libraries is an alternative method to hybridoma technology for the generation of target-specific monoclonal antibodies. High-affinity monoclonal antibodies from nonmurine species can readily be obtained by constructing immune antibody libraries from B cells of the immunized animal and screening the library by phage display. In this article, we describe the construction of a rabbit immune Fab library for the facile isolation of rabbit monoclonal antibodies. After immunization, B-cell cDNA is obtained from the spleen of the animal, from which antibody variable domain repertoires are amplified and assembled into a Fab repertoire by PCR. The Fab genes are then cloned into a phagemid vector and transformed to E. coli, from which a phage-displayed immune Fab library is rescued. Such a library can be biopanned against the immunization antigen for rapid identification of high-affinity, target-specific rabbit monoclonal antibodies.
Collapse
Affiliation(s)
- Thi Thu Ha Nguyen
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | | | - Hyunbo Shim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea.
- Department of Bioinspired Science, Ewha Womans Univesity, Seoul, Republic of Korea.
| |
Collapse
|
23
|
Yang X, Lei Y, Shu H, Rossi P, Mao H, Shim H, Curran W, Liu T. A Learning-Based Approach to Derive Electron Density from Anatomical MRI for Radiation Therapy Treatment Planning. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.437] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Gurbani S, Schreibmann E, Sheriff S, Cooper L, Shu H, Holder C, Maudsley A, Shim H. A Software Platform for Collaborative Radiation Therapy Planning Using Spectroscopic MRI. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
25
|
Jung JY, Kim EY, Kim A, Chang J, Kwon NH, Moon Y, Kang EJ, Sung JS, Shim H, Kim S, Chang YS. Ratio of Autoantibodies of Tumor Suppressor AIMP2 and Its Oncogenic Variant Is Associated with Clinical Outcome in Lung Cancer. J Cancer 2017. [PMID: 28638448 PMCID: PMC5479239 DOI: 10.7150/jca.18450] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Aminoacyl-tRNA synthetase-interacting multi-functional protein 2 (AIMP2) works as potent tumor suppressor, while its splicing variant lacking exon 2 (AIMP2-DX2) competes with AIMP2 for binding to target proteins and compromises its anti-tumor activity. Assuming that AIMP2 and its variant AIMP2-DX2 could be released out to human sera in pathological condition, we investigated the diagnostic and prognostic usefulness of autoantibodies against AIMP2 and AIMP2-DX2 by measuring their serum levels in 80 normal and lung cancer samples that were matched in age, gender and smoking status. The area under the curve of AIMP2-DX2, AIMP2, and AIMP2-DX2/AIMP2 autoantibody ratio was low (0.416, 0.579, and 0.357, respectively), suggesting limited diagnostic value. A total of 165 lung cancer patients were classified into low and high AIMP2-DX2, AIMP2, and AIMP2-DX2/AIMP2 based on the median expression of each parameter. The high AIMP2-DX2 group was older and had larger tumors (>3 cm) than the low AIMP2-DX2 group. The high AIMP2-DX2/AIMP2 group had higher CYFRA-21 levels and significantly shorter overall survival than the low AIMP2-DX2/AIMP2 group (18.6 vs. 48.9 months, P = 0.021, Log Rank Test). Taken together, autoantibodies against AIMP2-DX2 and AIMP2 are detectable in the human blood and the increased ratio of AIMP2-DX2/AIMP2 is related to poor clinical outcome of lung cancer.
Collapse
Affiliation(s)
- Ji Ye Jung
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Young Kim
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Arum Kim
- Division of Pulmonology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Chang
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Nam Hoon Kwon
- Medicinal Bioconvergence Research Center, Seoul National University, Seoul, Korea
| | - Youngji Moon
- Medicinal Bioconvergence Research Center, Seoul National University, Seoul, Korea
| | - Eun Joo Kang
- Medicinal Bioconvergence Research Center, Seoul National University, Seoul, Korea
| | - Jun Sik Sung
- Medicinal Bioconvergence Research Center, Seoul National University, Seoul, Korea
| | - Hyunbo Shim
- Department of Life Science and Pharmaceutical Science, Ewha Womans University, Seoul, Korea
| | - Sunghoon Kim
- Medicinal Bioconvergence Research Center, Seoul National University, Seoul, Korea.,WCU Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Suwon, Korea
| | - Yoon Soo Chang
- Division of Pulmonology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
26
|
Kim MR, Jang JH, Park CS, Kim TK, Kim YJ, Chung J, Shim H, Nam IH, Han JM, Lee S. A Human Antibody That Binds to the Sixth Ig-Like Domain of VCAM-1 Blocks Lung Cancer Cell Migration In Vitro. Int J Mol Sci 2017; 18:ijms18030566. [PMID: 28272300 PMCID: PMC5372582 DOI: 10.3390/ijms18030566] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/27/2017] [Accepted: 03/03/2017] [Indexed: 01/09/2023] Open
Abstract
Vascular cell adhesion molecule-1 (VCAM-1) is closely associated with tumor progression and metastasis. However, the relevance and role of VCAM-1 in lung cancer have not been clearly elucidated. In this study, we found that VCAM-1 was highly overexpressed in lung cancer tissue compared with that of normal lung tissue, and high VCAM-1 expression correlated with poor survival in lung cancer patients. VCAM-1 knockdown reduced migration of A549 human lung cancer cells into Matrigel, and competitive blocking experiments targeting the Ig-like domain 6 of VCAM-1 (VCAM-1-D6) demonstrated that the VCAM-1-D6 domain was critical for VCAM-1 mediated A549 cell migration into Matrigel. Next, we developed a human monoclonal antibody specific to human and mouse VCAM-1-D6 (VCAM-1-D6 huMab), which was isolated from a human synthetic antibody library using phage display technology. Finally, we showed that VCAM-1-D6 huMab had a nanomolar affinity for VCAM-1-D6 and that it potently suppressed the migration of A549 and NCI-H1299 lung cancer cell lines into Matrigel. Taken together, these results suggest that VCAM-1-D6 is a key domain for regulating VCAM-1-mediated lung cancer invasion and that our newly developed VCAM-1-D6 huMab will be a useful tool for inhibiting VCAM-1-expressing lung cancer cell invasion.
Collapse
Affiliation(s)
- Mi Ra Kim
- Research Center, Scripps Korea Antibody Institute, Chuncheon 24341, Korea.
| | - Ji Hye Jang
- Research Center, Scripps Korea Antibody Institute, Chuncheon 24341, Korea.
| | - Chang Sik Park
- Research Center, Scripps Korea Antibody Institute, Chuncheon 24341, Korea.
| | - Taek-Keun Kim
- Research Center, Scripps Korea Antibody Institute, Chuncheon 24341, Korea.
| | - Youn-Jae Kim
- Specific Organs Cancer Branch, Research Institute, National Cancer Center, Goyang 10408, Korea.
| | - Junho Chung
- Department of Biochemistry and Molecular Biology, Seoul National University, Seoul 03087, Korea.
| | - Hyunbo Shim
- Departments of Bioinspired Science and Life Science, Ewha Womans University, Seoul 03760, Korea.
| | - In Hyun Nam
- Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, Korea.
| | - Jung Min Han
- Department of Integrated OMICS for Biomedical Science, College of Pharmacy, Yonsei University, Incheon 21983, Korea.
| | - Sukmook Lee
- Research Center, Scripps Korea Antibody Institute, Chuncheon 24341, Korea.
| |
Collapse
|
27
|
Kim YJ, Ahn KS, Park SM, Lee BC, Shim H, Ahn C. 28 IMPROVED HATCH RATE AFTER PARTIAL DISSECTION OF ZONA PELLUCIDA IN CLONED PIG EMBRYO. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
For last 20 years, the efficiency of animal cloning has remained extremely low, despite many attempts to improve it. Although nuclear transfer experiments have been almost optimized, artificial holes are inevitably made in the zona pellucida (ZP) during nuclear transfer experiments, such as enucleation of maternal genome or injection of nuclear donor. Hatching from the ZP is a prerequisite for mammalian embryo implantation, and the condition of the ZP has a lot of influence on hatching. The present studies were performed to investigate the effects of artificial holes in the ZP, because of the nuclear transfer procedure, on hatching of clone embryos in pigs. All experiments were done in triplicate. Statistical analysis was performed using SPSS statistical software (SPSS Inc., Chicago, IL, USA). First, we made a slit in the ZP of porcine parthenote that was identical to the artificial holes of nuclear transfer experiment and compared in vitro development of Day 7 embryos with control group with intact ZP. Of slit blastocysts, 89.9% (80/89) were trapped at a slit, which looked like typical figure-eight shape, and did not complete the hatching process until Day 8, though 68.8% (64/93) of control blastocysts completed the hatching at Day 7. Then, to solve these abnormal hatchings caused by a slit in the ZP, we applied partial zona dissection (PZD) to porcine clone embryos and compared the hatching process with that of conventional clone embryos. Contrary to conventional clone blastocysts that were trapped at slit in the ZP (91.4%; 43/47), 89.5% (60/67) of clone blastocysts in PZD group were preferentially hatched through dissected hole at Day 7. These results suggest that trapping of conventional clone blastocyst in a slit of the ZP could be avoided by PZD. Through this study, we demonstrated that a slit in the ZP would hinder a blastocyst from hatching from the ZP and that partial dissection at the ZP could help clone blastocyst to hatch without trapping at a slit in the ZP. This assisted hatching in clone embryos would be useful for the successful hatching of clone blastocysts with a capacity of full-term development, so that the efficiency of animal cloning might be improved.
Collapse
|
28
|
|
29
|
Kang J, Lee SG, Kang JH, Park SM, Heo SY, Lee SY, Kim S, Lo E, Ahn KS, Shim H. 199 EFFECTS OF REPROGRAMMING-CONDITIONED MEDIUM ON ULTRAVIOLET RAY A–DAMAGED HUMAN DERMAL FIBROBLASTS. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Ultraviolet ray A (UVA) is an electromagnetic light with a long wavelength from the sun. The penetration of UVA deep into the human dermis causes changes in cells, such as DNA fragmentation, apoptosis, and senescence, eventually leading a decline of proliferation and wound-healing ability. These changes induced by UVA exposure are similar to those seen in the process of stem cell differentiation. We postulated that the condition that reverses cellular differentiation may alleviate the UVA-induced damage in skin cells. Human dermal fibroblasts (HDF) could be reprogrammed to induced pluripotent stem cells (iPSC). Conditioned medium (CM) was prepared during the process of iPSC reprogramming (referred to as Repro-CM). The UVA-irradiated HDF were cultured in Repro-CM for 24 h. In comparison with CM prepared from the culture of normal HDF and iPSC (referred to as HDF-CM and iPSC-CM, respectively), effects of Repro-CM on UVA-irradiated cells were investigated. Viability, wound-healing ability, apoptosis, and senescence of HDF were analysed by WST-1 assay, scratch assay, Annexin V assay, and senescence-associated β-galactosidase assay, respectively. Upon recovering from the UVA-induced damage, viability and wound-healing ability of HDF were significantly different (P < 0.05) among the treatments in the order of Repro-, HDF-, and iPSC-CM. In the same context, apoptosis and senescence were significantly different (P < 0.05) in the order of iPSC-, HDF-, and Repro-CM. Interestingly, iPSC-CM did not substantially ameliorate UVA-induced damage, suggesting that the conditions optimized to pluripotent stem cells may not be suitable for the recovery from damage in terminally differentiated cells, such as fibroblasts. The RNA-seq analysis was performed to assess the genome-wide transcriptional profile in the process of recovery. Repro- and HDF-CM were categorized more closely than iPSC-CM in hierarchical cluster analysis. In comparison with iPSC-CM, the up-regulated genes by Repro-CM treatment were related to regulation of cell proliferation and cell metabolism, whereas down-regulated genes were related to antiapoptosis and response to stimulation of chemical and organic substances. Overall, providing an environment of reprogramming, as shown by Repro-CM in the present study, may assist recovery of HDF from UVA-induced damage. The results of the study may be applicable in developing pharmaceuticals to treat aging and wrinkling of the skin caused by UVA irradiation.
Collapse
|
30
|
Roh K, Park H, Shim H. Prevalence of respiratory virus infections using multiplex real-time PCR in Korean nationwide reference laboratory (2015 annual report). Int J Infect Dis 2016. [PMCID: PMC7128431 DOI: 10.1016/j.ijid.2016.11.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
31
|
Ahn YH, Park S, Choi JJ, Park BK, Rhee KH, Kang E, Ahn S, Lee CH, Lee JS, Inn KS, Cho ML, Park SH, Park K, Park HJ, Lee JH, Park JW, Kwon NH, Shim H, Han BW, Kim P, Lee JY, Jeon Y, Huh JW, Jin M, Kim S. Secreted tryptophanyl-tRNA synthetase as a primary defence system against infection. Nat Microbiol 2016; 2:16191. [PMID: 27748732 DOI: 10.1038/nmicrobiol.2016.191] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 09/02/2016] [Indexed: 11/09/2022]
Abstract
The N-terminal truncated form of a protein synthesis enzyme, tryptophanyl-tRNA synthetase (mini-WRS), is secreted as an angiostatic ligand. However, the secretion and function of the full-length WRS (FL-WRS) remain unknown. Here, we report that the FL-WRS, but not mini-WRS, is rapidly secreted upon pathogen infection to prime innate immunity. Blood levels of FL-WRS were increased in sepsis patients, but not in those with sterile inflammation. FL-WRS was secreted from monocytes and directly bound to macrophages via a toll-like receptor 4 (TLR4)-myeloid differentiation factor 2 (MD2) complex to induce phagocytosis and chemokine production. Administration of FL-WRS into Salmonella typhimurium-infected mice reduced the levels of bacteria and improved mouse survival, whereas its titration with the specific antibody aggravated the infection. The N-terminal 154-amino-acid eukaryote-specific peptide of WRS was sufficient to recapitulate FL-WRS activity and its interaction mode with TLR4-MD2 is now suggested. Based on these results, secretion of FL-WRS appears to work as a primary defence system against infection, acting before full activation of innate immunity.
Collapse
Affiliation(s)
- Young Ha Ahn
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sunyoung Park
- College of Korean Medicine, Daejeon University, Daejeon 34520, Republic of Korea
| | - Jeong June Choi
- College of Korean Medicine, Daejeon University, Daejeon 34520, Republic of Korea
| | - Bo-Kyung Park
- College of Korean Medicine, Daejeon University, Daejeon 34520, Republic of Korea
| | - Kyung Hee Rhee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Eunjoo Kang
- Medicinal Bioconvergence Research Center, Seoul National University, Suwon 16229, Republic of Korea
| | - Soyeon Ahn
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Jong Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kyung-Soo Inn
- Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Mi-La Cho
- Divison of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sung-Hwan Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Kyunghee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Hye Jung Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jae-Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jung-Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Nam Hoon Kwon
- Medicinal Bioconvergence Research Center, Seoul National University, Suwon 16229, Republic of Korea
| | - Hyunbo Shim
- Departments of Bioinspired Science and Life Science, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Byung Woo Han
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Joo-Youn Lee
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.,Korea Chemical Bank, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Youngho Jeon
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Jin Won Huh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Mirim Jin
- College of Korean Medicine, Daejeon University, Daejeon 34520, Republic of Korea
| | - Sunghoon Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.,Medicinal Bioconvergence Research Center, Seoul National University, Suwon 16229, Republic of Korea
| |
Collapse
|
32
|
Jeoung MH, Kim TK, Shim H, Lee S. Development of a sandwich enzyme-linked immunosorbent assay for the detection of CD44v3 using exon v3- and v6-specific monoclonal antibody pairs. J Immunol Methods 2016; 436:22-8. [DOI: 10.1016/j.jim.2016.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 05/02/2016] [Accepted: 06/01/2016] [Indexed: 10/21/2022]
|
33
|
Abstract
The in vitro antibody discovery technologies revolutionized the generation of target-specific antibodies that traditionally relied on the humoral response of immunized animals. An antibody library, a large collection of diverse, pre-constructed antibodies, can be rapidly screened using in vitro display technologies such as phage display. One of the keys to successful in vitro antibody discovery is the quality of the library diversity. Antibody diversity can be obtained either from natural B-cell sources or by the synthetic methods that combinatorially generate random nucleotide sequences. While the functionality of a natural antibody library depends largely upon the library size, various other factors can affect the quality of a synthetic antibody library, making the design and construction of synthetic antibody libraries complicated and challenging. In this review, we present various library designs and diversification methods for synthetic antibody library. From simple degenerate oligonucleotide synthesis to trinucleotide synthesis to physicochemically optimized library design, the synthetic approach is evolving beyond the simple emulation of natural antibodies, into a highly sophisticated method that is capable of producing high quality antibodies suitable for therapeutic, diagnostic, and other demanding applications. [BMB Reports 2015; 48(9): 489-494]
Collapse
Affiliation(s)
- Hyunbo Shim
- Departments of Bioinspired Science and Life Science, Ewha Woman's University, Seoul 03760, Korea
| |
Collapse
|
34
|
Schreibmann E, Cordova J, Gurbani S, Holder C, Cooper L, Shu H, Shim H. SU-F-J-93: Automated Segmentation of High-Resolution 3D WholeBrain Spectroscopic MRI for Glioblastoma Treatment Planning. Med Phys 2016. [DOI: 10.1118/1.4956001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
35
|
Chung J, Shim H, Kim K, Lee D, Kim WJ, Kang DH, Kang SW, Jo H, Kwon K. Discovery of novel peptides targeting pro-atherogenic endothelium in disturbed flow regions -Targeted siRNA delivery to pro-atherogenic endothelium in vivo. Sci Rep 2016; 6:25636. [PMID: 27173134 PMCID: PMC4901192 DOI: 10.1038/srep25636] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 04/20/2016] [Indexed: 01/27/2023] Open
Abstract
Atherosclerosis occurs preferentially in arterial regions exposed to disturbed blood flow. Targeting these pro-atherogenic regions is a potential anti-atherogenic therapeutic approach, but it has been extremely challenging. Here, using in vivo phage display approach and the partial carotid ligation model of flow-induced atherosclerosis in mouse, we identified novel peptides that specifically bind to endothelial cells (ECs) exposed to disturbed flow condition in pro-atherogenic regions. Two peptides, CLIRRTSIC and CPRRSHPIC, selectively bound to arterial ECs exposed to disturbed flow not only in the partially ligated carotids but also in the lesser curvature and branching point of the aortic arch in mice as well as human pulmonary artery branches. Peptides were conjugated to branched polyethylenimine-polyethylene glycol polymer to generate polyplexes carrying siRNA targeting intercellular adhesion molecule-1 (siICAM-1). In mouse model, CLIRRTSIC polyplexes carrying si-ICAM-1 specifically bound to endothelium in disturbed flow regions, reducing endothelial ICAM-1 expression. Mass spectrometry analysis revealed that non-muscle myosin heavy chain II A (NMHC IIA) is a protein targeted by CLIRRTSIC peptide. Further studies showed that shear stress regulates NMHC IIA expression and localization in ECs. The CLIRRTSIC is a novel peptide that could be used for targeted delivery of therapeutics such as siRNAs to pro-atherogenic endothelium.
Collapse
Affiliation(s)
- Jihwa Chung
- Medical Research Institute, School of Medicine, Ewha Womans University, Seoul,158-710, Republic of Korea
| | - Hyunbo Shim
- Departments of Bioinspired Science and Life Science, Ewha Womans University, 11-1 Daehyun-dong, Seodaemoon-gu, Seoul, 120-750, Republic of Korea
| | - Kwanchang Kim
- Department of Thoracic surgery, School of Medicine, Ewha Womans University, Seoul, 158-710, Republic of Korea
| | - Duhwan Lee
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Won Jong Kim
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Dong Hoon Kang
- Department of Life Science, College of Natural Science, Ewha Womans University, 11-1 Daehyun-dong, Seodaemoon-gu, Seoul, 120-750, Republic of Korea
| | - Sang Won Kang
- Department of Life Science, College of Natural Science, Ewha Womans University, 11-1 Daehyun-dong, Seodaemoon-gu, Seoul, 120-750, Republic of Korea
| | - Hanjoong Jo
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA
| | - Kihwan Kwon
- Medical Research Institute, School of Medicine, Ewha Womans University, Seoul,158-710, Republic of Korea.,Department of Internal Medicine, Cardiology Division, School of Medicine, Ewha Womans University, Seoul, 158-710, Republic of Korea
| |
Collapse
|
36
|
Shin J, Shin J, Shim H. Transcatheter Arterial Embolization for Traumatic Mesenteric Bbleeding: a 15-year, Single Center Experience. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
37
|
Kang JH, Park SM, Heo SY, Kang J, Lee SY, Ahn KS, Lee SG, Shim H. 221 DERIVATION OF INSULIN-PRODUCING CELLS FROM HUMAN DERMAL FIBROBLASTS AT INTERMEDIATE PHASE OF REPROGRAMMING. Reprod Fertil Dev 2016. [DOI: 10.1071/rdv28n2ab221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Process of somatic cell reprogramming into induced pluripotent stem (iPS) cells can broadly be divided into an early stochastic phase and a later, hierarchical and more deterministic phase of gene activation. Between the stochastic onset and the deterministic progression while approaching pluripotency, cells upon reprogramming undergo a transient activation or repression of developmental regulators. In these intermediate cells yet acquiring pluripotency, many somatic gene expressions are lost, while various lineage-specific factors are activated. In the present study, we produced pancreatic β cells by exposing human dermal fibroblasts (HDF) at the intermediate phase of reprogramming to pancreas-specific culture conditions. To obtain the intermediate cells, reprogramming factor Oct4, Sox2, Klf4, and c-Myc were transduced into HDF using retroviruses. By Day 9 after transduction, the expression of fibroblast-associated Thy1 was lost, while the early reprogramming marker CD49d was activated, suggesting that the cells are at the early stage of intermediate phase. These cells were capable of differentiating into 3 germ layers when cultured in tri-differentiation medium (including 100 ng mL–1 Activin A, 0.1 ng mL–1 Wnt3 for endodermal differentiation; 20 ng mL–1 BMP4, 20 ng mL–1 Activin A for mesodermal differentiation; 10 μM SB431542, 600 ng mL–1 Dorsomorphin, and 35 ng mL–1 Noggin for ectodermal differentiation) and expressing lineage-specific markers Sox17 (endoderm), Brachyury (mesoderm), and Otx2 (ectoderm). Further, the endodermal cells derived from HDF at intermediate phase of reprogramming were cultured in pancreas-induction medium (KO DMEM with 1% insulin-transferrin-selenium (ITS), 10 ng mL–1 BMP4, 10 mM nicotinamide, 10 μM forskolin, 10 μM dexamethasone, and 50 ng mL–1 exendin-4). After 5 days in culture, cells expressed pancreatic progenitor marker Pdx1, as examined by immunostaining and fluorescence-activated cell sorting (FACS) analysis. After culture for additional 10 days, the cells formed spherical clusters and expressed pancreatic islet-specific genes including insulin, somatostatin, glucagon, Nkx6.1, and MafA, as determined by RT-PCR. Moreover, the production of insulin and C-peptide from the derived β cells was confirmed by immunocytochemistry and FACS analysis. In response to glucose stimulation, these cells secreted insulin and C-peptide, as measured by ELISA. The present study demonstrates that fully differentiated functional cells could be converted from somatic cells at intermediate phase of reprogramming by exposing cells to specific culture conditions. The results shown in this study may provide a faster and potentially safer way to produce functional pancreatic cells without isolation and differentiation of iPS cells.
Collapse
|
38
|
Kim TK, Park CS, Jeoung MH, Lee WR, Go NK, Choi JR, Lee TS, Shim H, Lee S. Generation of a human antibody that inhibits TSPAN8-mediated invasion of metastatic colorectal cancer cells. Biochem Biophys Res Commun 2015; 468:774-80. [PMID: 26562525 DOI: 10.1016/j.bbrc.2015.11.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 11/05/2015] [Indexed: 12/14/2022]
Abstract
Tetraspanin 8 (TSPAN8) is a tumor-associated antigen implicated in tumor progression and metastasis. However, the validation of TSPAN8 as a potential therapeutic target in metastatic colorectal cancer (mCRC) has not yet been studied. In this study, through several in vitro methodologies, we identified a large extracellular loop of TSPAN8 (TSPAN8-LEL) as a key domain for regulating mCRC invasion. Using phage display technology, we developed a novel anti-TSPAN8-LEL human antibody with subnanomolar affinity that specifically recognizes amino acids 140-205 of TSPAN8-LEL in a conformation-dependent manner. Finally, we demonstrated that the antibody specifically reduces invasion in the HCT116 and LoVo mCRC cell lines more potently than in the HCT-8 and SW480 non-mCRC cell lines. Our data suggest that TSPAN8-LEL may play an important role in mCRC cell invasion, and that the antibody we have developed could be a useful tool for inhibiting the invasion of TSPAN8-expressing mCRCs.
Collapse
Affiliation(s)
- Taek-Keun Kim
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, South Korea
| | - Chang Sik Park
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, South Korea
| | - Mee Hyun Jeoung
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, South Korea
| | - Woo Ran Lee
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, South Korea
| | - Nam Kyung Go
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, South Korea
| | - Jong Rip Choi
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, South Korea
| | - Tae Sup Lee
- Molecular Imaging Research Center, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Hyunbo Shim
- Departments of Bioinspired Science and Life Science, Ewha Womans University, Seoul, South Korea
| | - Sukmook Lee
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, South Korea.
| |
Collapse
|
39
|
Shu H, Cordova J, Hadjipanayis C, Kandula S, Liang Z, Cooper L, Holder C, Schreibmann E, Olson J, Shim H. Volumetric MR Spectroscopic Imaging Can Identify Infiltrating Glioblastoma for Targeting Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
40
|
Ko BK, Choi S, Cui LG, Lee YH, Hwang IS, Kim KT, Shim H, Lee JS. Affinity Maturation of Monoclonal Antibody 1E11 by Targeted Randomization in CDR3 Regions Optimizes Therapeutic Antibody Targeting of HER2-Positive Gastric Cancer. PLoS One 2015. [PMID: 26225765 PMCID: PMC4520604 DOI: 10.1371/journal.pone.0134600] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Anti-HER2 murine monoclonal antibody 1E11 has strong and synergistic anti-tumor activity in HER2-overexpressing gastric cancer cells when used in combination with trastuzumab. We presently optimized this antibody for human therapeutics. First, the complementarity determining regions (CDRs) of the murine antibody were grafted onto human germline immunoglobulin variable genes. No difference in affinity and biological activity was observed between chimeric 1E11 (ch1E11) and humanized 1E11 (hz1E11). Next, affinity maturation of hz1E11 was performed by the randomization of CDR-L3 and H3 residues followed by stringent biopanning selection. Milder selection pressure favored the selection of more diverse clones, whereas higher selection stringency resulted in the convergence of the panning output to a smaller number of clones with improved affinity. Clone 1A12 had four amino acid substitutions in CDR-L3, and showed a 10-fold increase in affinity compared to the parental clone and increased potency in an in vitro anti-proliferative activity assay with HER2-overepxressing gastric cancer cells. Clone 1A12 inhibited tumor growth of NCI-N87 xenograft model with similar efficacy to trastuzumab alone, and the combination treatment of 1A12 and trastuzumab completely removed the established tumors. These results suggest that humanized and affinity matured monoclonal antibody 1A12 is a highly optimized molecule for future therapeutic development against HER2-positive tumors.
Collapse
MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal, Humanized/chemistry
- Antibodies, Monoclonal, Humanized/immunology
- Antibodies, Monoclonal, Humanized/therapeutic use
- Antibody Affinity
- Cell Line, Tumor
- Complementarity Determining Regions/immunology
- Female
- Genes, erbB-2
- Humans
- Mice
- Mice, Nude
- Molecular Sequence Data
- Sequence Homology, Amino Acid
- Stomach Neoplasms/genetics
- Stomach Neoplasms/therapy
Collapse
Affiliation(s)
- Bong-Kook Ko
- Therapeutic antibody research center, AbClon Inc., Seoul, Korea
| | - Soyoung Choi
- Therapeutic antibody research center, AbClon Inc., Seoul, Korea
| | - Lei Guang Cui
- Therapeutic antibody research center, AbClon Inc., Seoul, Korea
| | - Young-Ha Lee
- Therapeutic antibody research center, AbClon Inc., Seoul, Korea
| | - In-Sik Hwang
- Therapeutic antibody research center, AbClon Inc., Seoul, Korea
| | - Kyu-Tae Kim
- Therapeutic antibody research center, AbClon Inc., Seoul, Korea
- * E-mail: (HS); (KTK)
| | - Hyunbo Shim
- Departments of Bioinspired Science and Life Science, Ewha Womans University, Seoul, Korea
- * E-mail: (HS); (KTK)
| | - Jong-Seo Lee
- Therapeutic antibody research center, AbClon Inc., Seoul, Korea
| |
Collapse
|
41
|
Schreibmann E, Cordova S, Shim H, Crocker I, Shu HKG. TH-CD-204-03: A Glioblastoma Tumor Growth Prediction Model Using Volumetric MR Spectroscopic Imaging for Radiation Therapy Response. Med Phys 2015. [DOI: 10.1118/1.4926250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
42
|
Kandula S, Cordova JS, Schreibmann E, Crocker I, Holder C, Shim H, Shu HK. NI-46 * THE IMPACT OF INTEGRATING VOLUMETRIC MR SPECTROSCOPIC IMAGING IN RADIATION TREATMENT PLANNING FOR GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou264.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
43
|
Cordova JS, Liang Z, Holder CA, Appin C, Schreibmann E, Bian X, Brat D, Shu HK, Olson J, Maudsley A, Shim H, Hadjipanayis C. NI-15 * USE OF VOLUMETRIC MR SPECTROSCOPIC IMAGING AND 5-ALA FLUORESCENCE-GUIDED SURGERY FOR RESECTION OF GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou264.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
44
|
Cho S, Shim H, Hwang J, Bae W, Lee D, Yoon T, Lee J, Lim S, Chung W, Ahn J, Jung S, Choi Y, Chung I. The Expression of P53, &Bgr;-Tubulin, Bcl-2 According to P16 Status in Advanced Oropharyngeal Cancer After Induction Chemotherapy Followed By Concurrent Chemoradiotherapy. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu340.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
45
|
Cho J, Hong Z, Lee E, Kim J, Shim H, Song K, Choi B, Story M. Time, Dose and Volume Response in the Mouse Pulmonary Injury Model After Ablative Irradiation. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
46
|
Schreibmann E, Cordova J, Shu H, Crocker I, Curran W, Holder C, Shim H. TH-A-BRF-09: Integration of High-Resolution MRSI Into Glioblastoma Treatment Planning. Med Phys 2014. [DOI: 10.1118/1.4889555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
47
|
Aliaga L, Lai C, Yu J, Chub N, Shim H, Sun L, Xie C, Yang WJ, Lin X, O'Donovan MJ, Cai H. Amyotrophic lateral sclerosis-related VAPB P56S mutation differentially affects the function and survival of corticospinal and spinal motor neurons. Hum Mol Genet 2014. [DOI: 10.1093/hmg/ddu098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
48
|
Almeida M, Maltarollo V, Toledo R, Shim H, Santos M, Honorio K. Medicinal Electrochemistry: Integration of Electrochemistry, Medicinal Chemistry and Computational Chemistry. Curr Med Chem 2014; 21:2266-75. [DOI: 10.2174/0929867321666140217120655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 12/18/2013] [Accepted: 02/12/2014] [Indexed: 11/22/2022]
|
49
|
Kim YJ, Kim MJ, Kim TH, Kim HW, Shim H. 216 COMPLETE REDUCTION OF p53 EXPRESSION BY RNA INTERFERENCE FOLLOWING HETEROZYGOUS KNOCKOUT IN PORCINE FIBROBLASTS. Reprod Fertil Dev 2014. [DOI: 10.1071/rdv26n1ab216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Because p53 has a critical role in regulation of cell cycle and apoptosis in mammals, mutations of p53 often cause various cancers in mammals. Murine models have contributed to our understanding in cancer related to p53 mutations. Mice, however, have different characteristics from humans in many ways. For instance, the short lifespan of the mouse gives rise to limitations in clinical application of the data obtained from this species. Hence, it would be beneficial to establish a more suitable model in species other than the mouse. The porcine model could be an appropriate alternative because pigs share many anatomical and physiological similarities with humans. However, the production of pigs with homozygous knockout (KO) requires years of breeding heterozygous KO animals. Here, we completely reduced the expression level of p53 mRNA and protein in miniature pig fetal fibroblasts using a combination of gene targeting and RNA interference technique. These cells may be used for nuclear transfer to directly produce pigs without expression of the gene of interest. First, we disrupted the exon 2 region of p53 gene to produce p53 heterozygous KO cells. Miniature pig fetal fibroblasts were transfected with the p53 gene targeting vector. After Geneticin treatment for 2 weeks, a total of 48 surviving colonies were screened by PCR, and one was identified as a homologous recombinant (1/48, 2.08%). Second, the p53 shRNA expression vector was introduced into fibroblasts to isolate p53 knockdown (KD) cells. Transfected fibroblasts were treated with Zeocin for 3 weeks, and the shRNA integrations were confirmed by PCR. We obtained p53 KO, KD, and KOKD fibroblasts which involve p53 KO and KD either separately or simultaneously. In mRNA expression based on RT-PCR, p53 KO fibroblasts showed no difference with wild-type control (91.8 v. 100%). However, the expression levels of KD and KOKD cells significantly decreased (35.5 and 34.7%) compared with the control. In p53 protein levels analysed by Western blot, reduction of the protein was observed in p53 KD, whereas no reduction in p53 KO that might be due to heterozygous mutation. Interestingly, no p53 protein was detected in KOKD, suggesting complete reduction of the protein by synergistic effect of KO and KD. In this study, we demonstrated that various expression levels of p53 in porcine fibroblasts could be achieved by gene targeting and RNA interference technique. Moreover, complete abolishment of protein expression is feasible using combination of the 2 techniques. In further research, cloned miniature pigs with various levels of p53 expression or even lacking p53 expression may be produced using the fibroblasts isolated in the present study as nuclear donors. These pigs may provide new animal models and insights in cancer with respect to the effect of p53.
Collapse
|
50
|
Ki MK, Jeoung MH, Choi JR, Rho SS, Kwon YG, Shim H, Chung J, Hong HJ, Song BD, Lee S. Human antibodies targeting the C-type lectin-like domain of the tumor endothelial cell marker clec14a regulate angiogenic properties in vitro. Oncogene 2013; 32:5449-57. [PMID: 23644659 PMCID: PMC3898107 DOI: 10.1038/onc.2013.156] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 03/14/2013] [Accepted: 03/18/2013] [Indexed: 12/15/2022]
Abstract
It has been suggested that clec14a may be involved in tumor angiogenesis. However, a molecular mechanism has not been clearly identified. In this study, we show for the first time that C-type lectin-like domain (CTLD) of clec14a may be important for regulating cell migration and filopodia formation. Using phage display technology, recombinant human antibodies specific to the CTLDs of human and mouse clec14a (clec14a-CTLD (immunoglobulin G) IgG) were selected. Functional assays using the antibodies showed that clec14a-CTLD IgGs specifically blocked endothelial cell migration and tube formation without affecting cell viability or activation. Further, clec14a-CTLD IgGs inhibited clec14a-mediated cell–cell contact by blocking interaction between CTLDs. Finally, clec14a cross-linking by the clec14a-CTLD IgGs significantly downregulated clec14a expression on the surface of endothelial cells. These results strongly suggest that the clec14a-CTLD may be a key domain in angiogenesis, and that clec14a-CTLD IgGs specifically inhibit angiogenesis by modulating CTLD-mediated cell interactions and clec14a expression on the surface of endothelial cells.
Collapse
Affiliation(s)
- M K Ki
- Laboratory of Molecular Cancer Therapeutics, Scripps Korea Antibody Institute, Chuncheon, Korea
| | | | | | | | | | | | | | | | | | | |
Collapse
|