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Seo MJ, Kim IY, Lee DM, Park YJ, Cho MY, Jin HJ, Choi KS. Dual inhibition of thioredoxin reductase and proteasome is required for auranofin-induced paraptosis in breast cancer cells. Cell Death Dis 2023; 14:42. [PMID: 36658130 PMCID: PMC9852458 DOI: 10.1038/s41419-023-05586-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/20/2023]
Abstract
Auranofin (AF), a gold (I)-containing phosphine compound, is being investigated for oncological application as a repurposed drug. We show here that 4~5 µM AF induces paraptosis, a non-apoptotic cell death mode characterized by dilation of the endoplasmic reticulum (ER) and mitochondria, in breast cancer cells. Although the covalent inhibition of thioredoxin reductase (TrxR), an enzyme that critically controls intracellular redox homeostasis, is considered the primary mechanism of AF's anticancer activity, knockdown of TrxR1 did not induce paraptosis. Instead, both TrxR1 knockdown plus the proteasome inhibitor (PI), bortezomib (Bz), and 2 μM AF plus Bz induced paraptosis, thereby mimicking the effect of 5 μM AF. These results suggest that the paraptosis induced by 5 μM AF requires the inhibition of both TrxR1 and proteasome. We found that TrxR1 knockdown/Bz or subtoxic doses of AF and Bz induced paraptosis selectively in breast cancer cells, sparing non-transformed MCF10A cells, whereas 4~5 μM AF killed both cancer and MCF10A cells. GSH depletion was found to be more critical than ROS generation for the paraptosis induced by dual TrxR1/proteasome inhibition. In this process, the ATF4/CHAC1 (glutathione-specific gamma-glutamylcyclotransferase 1) axis leads to GSH degradation, contributing to proteotoxic stress possibly due to the accumulation of misfolded thiol-containing proteins. These results suggest that the paraptosis-inducing strategy of AF plus a PI may provide an effective therapeutic strategy against pro-apoptotic therapy-resistant cancers and reduce the potential side effects associated with high-dose AF.
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Affiliation(s)
- Min Ji Seo
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, 16499, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Korea
| | - In Young Kim
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, 16499, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Korea
- Nano-safety Team, Safety Measurement Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon, 34113, Korea
| | - Dong Min Lee
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, 16499, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Korea
| | - Yeon Jung Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, 16499, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Korea
| | - Mi-Young Cho
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, 16499, Korea
| | - Hyo Joon Jin
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, 16499, Korea
- Ajou University School of Medicine, Suwon, 16499, Korea
| | - Kyeong Sook Choi
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, 16499, Korea.
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Korea.
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2
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Lee DM, Seo MJ, Lee HJ, Jin HJ, Choi KS. ISRIB plus bortezomib triggers paraptosis in breast cancer cells via enhanced translation and subsequent proteotoxic stress. Biochem Biophys Res Commun 2022; 596:56-62. [PMID: 35114585 DOI: 10.1016/j.bbrc.2022.01.082] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/22/2022] [Indexed: 12/29/2022]
Abstract
Despite the success of proteasome inhibitors (PIs) in treating hematopoietic malignancies, including multiple myeloma (MM), their clinical efficacy is limited in solid tumors. In this study, we investigated the involvement of the integrated stress response (ISR), a central cellular adaptive program that responds to proteostatic defects by tuning protein synthesis rates, in determining the fates of cells treated with PI, bortezomib (Bz). We found that Bz induces ISR, and this can be reversed by ISRIB, a small molecule that restores eIF2B-mediated translation during ISR, in both Bz-sensitive MM cells and Bz-insensitive breast cancer cells. Interestingly, while ISRIB protected MM cells from Bz-induced apoptosis, it enhanced Bz sensitivity in breast cancer cells by inducing paraptosis, the cell death mode that is accompanied by dilation of the endoplasmic reticulum (ER) and mitochondria. Combined treatment with ISRIB and Bz may shift the fate of Bz-insensitive cancer cells toward paraptosis by inducing translational rescue, leading to irresolvable proteotoxic stress.
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Affiliation(s)
- Dong Min Lee
- Department of Biochemistry, Ajou University School of Medicine, Suwon, South Korea
| | - Min Ji Seo
- Department of Biochemistry, Ajou University School of Medicine, Suwon, South Korea
| | - Hong Jae Lee
- Department of Biochemistry, Ajou University School of Medicine, Suwon, South Korea
| | - Hyo Joon Jin
- Department of Biochemistry, Ajou University School of Medicine, Suwon, South Korea
| | - Kyeong Sook Choi
- Department of Biochemistry, Ajou University School of Medicine, Suwon, South Korea.
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Shi HX, Huang SW, Luo WJ, Pan F, Jin HJ, Wei W. Elevated expression of CDT1 in childhood acute lymphoblastic leukemia promotes cell proliferation, invasion and migration through activation of EMT. J BIOL REG HOMEOS AG 2021; 35:6. [PMID: 34348833 DOI: 10.23812/21-si1-6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Acute lymphoblastic leukemia (ALL) is a malignant disease of the hematopoietic system. At present, the mechanism and pathogenesis of ALL have not been fully clarified. This study aimed to illustrate the roles of Cdc10 protein-dependent transcript 1 (CDT1) in ALL. Real-Time Quantitative Polymerase Chain Reaction (RT-qPCR) was performed to examine serum levels of CDT1 in childhood ALL patients and healthy volunteers. The interaction between CDT1 expression and prognosis of childhood ALL was analyzed. Meanwhile, expressions of CDT1 in ALL cell lines were determined. Furthermore, CDT1 knockdown model was constructed in ALL cells, and Cell Counting Kit-8 (CCK-8), and Transwell assays were conducted to analyze the effect of CDT1 on the biological functions of ALL cells. Potential mechanism was further explored through detecting the expressions of Epithelial-to-mesenchymal transition (EMT)-related genes. RT-qPCR results indicated that serum level of CDT1 in childhood ALL patients was remarkably higher than that of healthy volunteers. Childhood ALL patients with high expression of CDT1 had lower overall survival rate compared with those expressing low expression of CDT1. CDT1 knockdown remarkably decreased the proliferation and metastasis abilities of pediatric ALL cells. Results of western blot showed that CDT1 might contribute to the malignant progression of childhood ALL via activating EMT. The findings showed that elevated CDT1 facilitated ALL metastasis by promoting EMT, suggesting that CDT1 played a pivotal role in ALL metastasis and may serve as a novel prognostic biomarker and therapeutic target.
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Affiliation(s)
- H X Shi
- Department of Pediatrics, Maternal and Child Health Care Hospital of Zhangqiu District, Jinan, China
| | - S W Huang
- Department of Pediatrics, Zhangqiu District People's Hospital, Jinan, China
| | - W J Luo
- Department of Clinical Laboratory, Jiyang People's Hospital, Jinan, China
| | - F Pan
- Department of Obstetrics, Zhangqiu District People's Hospital, Jinan China
| | - H J Jin
- Department of Obstetrics, Zhangqiu District People's Hospital, Jinan China
| | - W Wei
- Department of Hematology, Zhangqiu District People's Hospital, Jinan, China
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4
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Li KP, Liu Z, Jin SC, Jin HJ, Zhang YJ. [Clinical analysis of nose rhabdomyosarcoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:1398-1401. [PMID: 29797992 DOI: 10.13201/j.issn.1001-1781.2017.18.005] [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] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Indexed: 11/12/2022]
Abstract
Objective:To improve the diagnosis of the nose rhabdomyosarcoma.Method:Twenty-four patients with nose rhabdomyosarcoma were studied retrospectively.Result:Among 24 patients with nose rhabdomyosarcoma, three patients were in stage Ⅰ, four patients were in stage Ⅱ, eleven patients were in stage Ⅲ, and six patients were in stage Ⅳ. Embryonal rhabdomyosarcoma is the commonest in all the pathological types. Most patients need comprehensive therapy, including surgery operation, radiotherapy, and multicycle chemotherapy. Prognosis was poor in most of the cases. The survival rate of one year was 70.8% (17/24), and survival rate of three years was 30.3% (8/24).Conclusion:Different surgical protocols should be adopted for different patients, and postoperative chemoradiotherapy should be adopted for advanced treatment. By means of multidisciplinary collaboration, the patient's survival time would be prolonged.
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Affiliation(s)
- K P Li
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450052,China
| | - Z Liu
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450052,China
| | - S C Jin
- The Second Clinical Medical College of Lanzhou University
| | - H J Jin
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450052,China
| | - Y J Zhang
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450052,China
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5
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Park MY, Lee JS, Jin HJ, You HS, Kim GW, Ko HC, Kim BS, Kim MB, Kim HS. Localized argyria: troublesome side-effect of acupuncture. J Eur Acad Dermatol Venereol 2017; 32:e62-e65. [PMID: 28833654 DOI: 10.1111/jdv.14526] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M Y Park
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - J S Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongbuk, Korea
| | - H J Jin
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - H S You
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - G W Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - H C Ko
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - B S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - M B Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - H S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
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6
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Lin Q, Hong XY, Zhang D, Jin HJ. Preoperative evaluation and surgical technique of functional and cosmetic aspects in zygomatic complex fracture patients. J BIOL REG HOMEOS AG 2017; 31:1005-1012. [PMID: 29254306] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The zygomatico-maxillary complex functions as the principle buttress of the face and is the cornerstone to an individuals aesthetic appearance. Its fracture not only creates cosmetic deformities owing to its position and facial contour, but can also cause disruption of ocular and mandibular functions. The aim of this study was to evaluate the quality, efficacy and impact of internal fixation of zygomatic complex fractures on functional and cosmetic outcomes. A prospective study was carried out on 100 patients who were divided according to the classification and the severity of injury. Subjective evaluation was submitted based on the patients perception of signs and symptoms in the preoperative and postoperative periods. Intraoperative and postoperative assessment of bone reduction quality was made according to the type of the fracture and related difficulties; also, the difference between these groups was observed as functional and esthetic outcome. To optimize the treatment of zygomatic bone fractures, a pre-designed questionnaire was used for subjective evaluation of symptoms and treatment outcome. In 70% of cases, ophthalmologic consultation was taken and was most common in type VII fractures (100% cases). Neurosensory disturbance was the most common finding (60%), followed by diplopia (56R%), pain upon mouth opening (54%) and malar depression (50%). Out of all possible 400 fracture sites in 100 patients of zygomatic complex fractures, 266 (66.5%) fractures were detected by clinical examination, in contrast to 330 (82.5%) on radiological examination, which were highest at zygomatic-maxillary buttress (93%) followed by infraorbital rim (91%) and almost equal among fronto-zygomatic site (72%) and zygomatic arch (74%). The scores from the questionnaire for annoyance were significantly higher for paraesthesia (23%) than for trismus (10%), pain (8.5%), or deformity (8.25%). Residual deformity and pain significantly influenced the total satisfaction. Conclusively, there are many treatment modalities available for zygomatic complex fractures, and the preferred methods should be selected on the basis of fracture type, fracture severity, pre-operative signs and symptoms. Regarding the requirements of fracture site exposure and actual fixation, one priority should be to minimize postoperative complications, morbidity and residual deformities.
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Affiliation(s)
- Q Lin
- Department of Plastic and Reconstructive Surgery, the First Hospital of Jilin University, Changchun, China
| | - X Y Hong
- Department of Vascular Surgery, China-Japan Hospital of Jilin university, Changchun, China
| | - D Zhang
- Department of Plastic and Reconstructive Surgery, the First Hospital of Jilin University, Changchun, China
| | - H J Jin
- Department of Plastic and Reconstructive Surgery, the First Hospital of Jilin University, Changchun, China
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7
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Li KP, Liu Z, Jin SC, Cui ZQ, Jin HJ. [Recurrent nasal adenoid cystic carcinoma with local invasion: report of two cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017. [PMID: 28635223 DOI: 10.3760/cma.j.issn.1673-0860.2017.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- K P Li
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Z Liu
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S C Jin
- the Second Clinical Medical College of Lanzhou University, Lanzhou 730030, China
| | - Z Q Cui
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H J Jin
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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8
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Jin HJ, Tu R, Xu F, Chen SF. Identification of nitrogen-fixing Paenibacillus from different plant rhizospheres and a novel nifH gene detected in the P. stellifer. Mikrobiologiia 2011; 80:121-128. [PMID: 21513217] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A total of 534 isolates were selectively obtained from different plant rhizospheres based on their growth on nitrogen-free medium and their resistance to 80 degrees C for 15 min. Of the 534 isolates, 23 isolates had nifH gene and exhibited nitrogenase activities. Based on 16S rDNA sequence, G + C content assay and DNA-DNA hybridization, by the 23 isolates, which were divided into four monophyletic clusters, all belonged to the Paenibacillus genus. NifH gene deduced amino acid alignment analysis revealed that cluster I, including 15 isolates, showed the highest NifH identity with Paenibacillus genus; while cluster II identified as P stellifer by DNA-DNA hybridization was consistent with four uncultured bacterial clones. This study suggested that the nitrogen-fixing Paenibacillus were distributed in various ecosystems and prevalent in different plant rhizospheres. It was the first demonstration that nitrogen fixation existed in P. jamilae and P. stellifer. In eight isolates identified as P. stellfer species, a novel nifH gene was detected in Paenibacillus.
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Affiliation(s)
- H J Jin
- State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China
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Zhang XD, Hao JD, Li WS, Jin HJ, Yang J, Huang QM, Lu DS, Xu HK. Synergistic effect in treatment of C.I. Acid Red 2 by electrocoagulation and electrooxidation. J Hazard Mater 2009; 170:883-887. [PMID: 19501959 DOI: 10.1016/j.jhazmat.2009.05.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2008] [Revised: 05/11/2009] [Accepted: 05/11/2009] [Indexed: 05/27/2023]
Abstract
An aqueous C.I. Acid Red 2 solution was decolorized by electrolysis using iron as anode. The decolorization mechanism was investigated through experimental observations on the electrochemical behavior of C.I. Acid Red 2 on Pt rotating disk electrode, UV-visible spectra of the solution and IR spectra of the coagulated mixtures. It is found that the decolorization efficiency is high, over 98.0% after 40 min, and this high decolorization efficiency can be ascribed to the synergistic effect of electrocoagulation and electrooxidation. The electrocoagulation results from the electrogenerated iron hydroxide and the electrooxidation results from electrogenerated ferric ions. The results obtained from IR spectra shows that the decolorization of C.I. Acid Red 2 by electrooxidation is due to the partial or complete cleavage of C-N bonds in C.I. Acid Red 2.
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Affiliation(s)
- X D Zhang
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
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Zhang K, Lim JY, Park BJ, Jin HJ, Choi HJ. Carboxylic acid functionalized multi-walled carbon nanotube-adsorption onto poly(methyl methacrylate) microspheres. J Nanosci Nanotechnol 2009; 9:1058-1061. [PMID: 19441455 DOI: 10.1166/jnn.2009.c087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We prepared multi-walled carbon nanotube (MWNT) coated polymeric microspheres i.e., carboxylic acid functionalized MWNT (c-MWNT) adsorbed onto poly(methyl methacrylate) (PMMA) microspheres. Initially, the MWNT was functionalized with carboxylic acid functional group and PMMA microspheres were synthesized via a dispersion polymerization method separately. The c-MWNT/PMMA microspheres were then fabricated by blending technique i.e., simple mixing of c-MWNT and PMMA microspheres dispersed solutions under ultrasonication. Surface morphologies of the c-MWNT-adsorbed PMMA microspheres were observed using scanning electron microscopy (SEM). In addition, c-MWNT/PMMA microsphere suspension dispersed in silicone oil showed typical electrorheological characteristics of fibril structure under an applied electric field.
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Affiliation(s)
- K Zhang
- Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea
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11
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Yoon M, Choi YS, Jin HJ, Sohn YC, Lee SK, Jin DH. Heteropolymorphism of mitochondrial NADH dehydrogenase subunit 3 gene for the population analysis of chum salmon, Oncorhynchus keta. J Environ Biol 2008; 29:567-570. [PMID: 19195398] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Mitochondrial DNAs (mtDNAs) has been frequently used as genetic markers for the population genetic studies. In this study we used chum salmon (Oncorhynchus keta) from Korea, Japan andAmerica, and compared their mitochondrial NADH dehydrogenase subunit 3 (ND3) genes by DNA sequence analysis. Sequence variation was studied in the ND3 among total 11 individuals from three populations. The ND3 gene was amplified by PCR targeting parts of cytochrome oxidase III gene (COIII) and NADH dehydrogenase subunit 4L gene (ND4L). ND3 gene sequence, encoded 752 bps, presented some genetic variation in the chum salmon populations. The observed nucleotide variations inferred the distinct genetic differentiation of American salmons from Korean and Japanese chum salmons. Six sites of single nucleotide polymorphism (SNP) were explored in the ND3 locus. Denaturing gradient gel electrophoresis analysis also showed a clear heterogenous band in American salmons compared to Asian salmons.
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Affiliation(s)
- M Yoon
- Faculty of Marine Bioscience and Technology, Kangnung National University, Gangneung 210-702, Korea
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Kim YS, Bobbili NK, Lee YK, Jin HJ, Dunn MA. Production of a polyclonal anti-myostatin antibody and the effects of in ovo administration of the antibody on posthatch broiler growth and muscle mass. Poult Sci 2007; 86:1196-205. [PMID: 17495092 DOI: 10.1093/ps/86.6.1196] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this study, we produced a polyclonal antibody against unprocessed chicken myostatin and examined the effect of in ovo administration of the antibody on posthatch chicken growth and muscle mass. A PCR-amplified unprocessed chicken myostatin cDNA was cloned into an Escherichia coli expression vector, and myostatin proteins were expressed. Recombinant myostatin purified by electro-elution of the SDS-PAGE fractionated myostatin band was used as an immunogen to produce rabbit polyclonal antimyostatin antibody (pAb-AVM46). In Western blot analysis, the pAb-AVM46 showed high affinity to the myostatin propeptide, but little affinity to the mature myostatin. Two experiments examined the effect of in ovo administration of the pAb-AVM46 on posthatch chicken growth and skeletal muscle mass. In experiment 1, broilers from eggs injected once with 35 microg of the antibody into the yolk on d 3 of incubation had significantly lower combined thigh and leg weight at 4 wk posthatch than the controls that received no injection, or the broilers from eggs received the same dose of antibody into the albumen. In experiment 2, 2 different doses of the antibody (9 or 70 microg) were injected into the yolk, and the effects on body and muscle weight were examined at 5 wk posthatch. Birds from eggs injected with 70 microg of the antibody had significantly lighter (11.6%) combined thigh and leg weight than the control birds. The percentage of the combined thigh and leg weight to BW of the 70-microg group was also significantly lower than that of the control group (20.95 vs. 23.08%). The results of this study indicate that unprocessed full-length myostatin as an immunogen produced antibody populations having affinity mostly to the propeptide with little to the mature form. The decreased muscle weight observed in broilers injected with the antibody in the yolk indicates that myostatin activity was probably elevated by the binding of the antibody to the propeptide, and provides evidence that myostatin propeptide inhibits the biological activity of myostatin in broilers.
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Affiliation(s)
- Y S Kim
- Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu 96822, USA.
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Kim YS, Bobbili NK, Paek KS, Jin HJ. Production of a monoclonal anti-myostatin antibody and the effects of in ovo administration of the antibody on posthatch broiler growth and muscle mass. Poult Sci 2006; 85:1062-71. [PMID: 16776476 DOI: 10.1093/ps/85.6.1062] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Myostatin, a member of the transforming growth factor-beta (TGF-beta) superfamily, is a potent negative regulator of skeletal muscle growth. The objective of this study was to produce a monoclonal anti-myostatin antibody and to examine the effects of in ovo administration of the antibody on posthatch broiler growth and muscle mass. The mature form of myostatin was expressed in Escherichia coli and used as an immunogen in producing a monoclonal antibody against myostatin. One hybridoma clone (mAb-c134) that showed the strongest affinity to the immunogen in Western blot analysis was used in producing a large quantity of monoclonal anti-myostatin antibody. In Western blot analysis, this antibody showed a strong binding affinity to commercially available mature myostatin and demonstrated a certain level of cross-reactivity with recombinant human BMP2 but not with recombinant human TGF-beta3 or porcine TGF-beta1. Competitive ELISA demonstrated binding of the antibody to the native form of mature myostatin in solution. To examine the effects of in ovo administration of the mAb-c134 antibody, eggs were injected once with 40 microg of mAb-c134 in 50 mL of PBS either into the albumen or yolk on d 3 of incubation. Controls received no injection. After hatching, chicks were raised for 35 d. Broilers from eggs that had the antibody injected into the yolk had significantly heavier body (4.2%) and muscle (5.5%) mass than the controls in both male and female birds. In contrast, no significant effects on body and muscle mass were observed when the mAb-c134 antibody was injected into the albumen. The results of this study suggest that immunoneutralization of myostatin during embryonic development is a potential means to improve growth potential of broilers.
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Affiliation(s)
- Y S Kim
- Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu 96822, USA.
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14
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Liu Y, Chen JN, Zhao JS, Yu HX, Wang XD, Jiang J, Jin HJ, Zhang JF, Wang LS. Three-dimensional quantitative structure activity relationship (3D-QSAR) analysis for in vitro toxicity of chlorophenols to HepG2 cells. Chemosphere 2005; 60:791-5. [PMID: 15946721 DOI: 10.1016/j.chemosphere.2005.04.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In the present paper, comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) were applied to investigate two 3D-QSAR models for the cytotoxicity of chlorophenols. These models have evaluated the intensity of chlorophenols' toxicity on HepG2 cells in vitro. The CoMFA model has both high consistency and predictability. The contribution of the electrostatic field to biological activity is greater than that of the steric field. The CoMSIA model used in this study includes two fields, one is hydrophobic field, and the other is electrostatic field. The relative contribution of them is 0.789:0.211. Consisted with the CoMFA model, the CoMSIA electrostatic filed also plays a dominant role. The CoMFA and CoMSIA contour maps significantly elucidated that the electrostatic field is more important than the other fields and might be one of the reasons resulting in potential reactive mechanism involved in cell proliferation inhibition.
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Affiliation(s)
- Y Liu
- The State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
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Han MS, Kang PW, Choi DH, Lee YH, Choi SK, Yoon SR, Shin DJ, Kim JM, Jin HJ, Kwak KD, Kim W. Korean population genetic data for eleven STR loci. Forensic Sci Int 2001; 123:230-1. [PMID: 11728753 DOI: 10.1016/s0379-0738(01)00531-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Allele frequency and forensic parameters for eleven STR loci were surveyed in a random sample from the Korean population.
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Affiliation(s)
- M S Han
- DNA Analysis Section, National Institute of Scientific Investigation, Seoul, Republic of Korea
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16
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Shin DJ, Jin HJ, Kwak KD, Choi JW, Han MS, Kang PW, Choi SK, Kim W. Y-chromosome multiplexes and their potential for the DNA profiling of Koreans. Int J Legal Med 2001; 115:109-17. [PMID: 11724428 DOI: 10.1007/s004140100248] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We have developed four multiplex genotyping systems (GeneKin Y-STR multiplexes) using silver staining with allelic ladders for ten Y-chromosome STR markers (DYS19, DYS385, DYS388, DYS389I/II, DYS390, DYS391, DYS392, DYS393 and DXYS156Y), with a view towards the application of rapid and simple genotyping assay methods for DNA profiling. The GeneKin Y-STR multiplexes developed have followed the published nomenclature and ISFG guidelines for STR analysis. Allele and haplotype frequencies at these Y-STRs loci were analysed by PCR amplification using the GeneKin Y-STR multiplexes, followed by denaturing polyacrylamide gel electrophoresis in 316 unrelated males in the Korean population. A total of 295 different haplotypes were found, 279 of them being unique. Gene diversity ranged from 0.4026 at DYS391 to 0.9606 at DYS385. The haplotype diversity value (which is the same as the discrimination index) calculated from all ten loci combined was 0.9995, which is informative. Our results revealed that a set of ten Y-STRs can discriminate between most of the male individuals in the Korean population (discrimination capacity: 93.35%). The Y-STR multiplexes thus provide useful information for forensic analysis and paternity tests and can also be of great benefit for providing information not normally available from autosomal DNA systems.
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Affiliation(s)
- D J Shin
- Department of Biology, Dankook University, Cheonan, Korea
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17
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Abstract
Allele and haplotype frequencies of seven Y-chromosome STR loci were determined from a sample of 330 unrelated males in the Korean population.
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Affiliation(s)
- Y J Kim
- Department of Biology, Chungnam National University, 305-764, Taejon, South Korea
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18
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Cha JK, Jeong MH, Bae HR, Han JY, Jeong SJ, Jin HJ, Lim YJ, Kim SH, Kim JW. Activated platelets induce secretion of interleukin-1beta, monocyte chemotactic protein-1, and macrophage inflammatory protein-1alpha and surface expression of intercellular adhesion molecule-1 on cultured endothelial cells. J Korean Med Sci 2000; 15:273-8. [PMID: 10895967 PMCID: PMC3054638 DOI: 10.3346/jkms.2000.15.3.273] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Atherosclerosis is an inflammatory disease. Platelet-endothelium interaction plays an important role in the pathophysiology of atherogenesis. We investigated the role of activated platelets for secretion of interleukin (IL)-1beta, monocyte chemotactic protein (MCP)-1 and macrophage inflammatory protein (MIP)-1alpha and expression of intercellular adhesion molecule (ICAM)-1 on endothelial cells. Human umbilical vein endothelial cells (HUVEC) were incubated with non-stimulated or ADP-activated platelets for 6 hr. Secretion of interleukin (IL)-1beta, MCP-1 and MIP-1alpha and surface expression of ICAM-1 were measured by ELISA and flow cytometry. In the presence of activated platelets, the secretion of IL-1beta, MCP-1, and MIP-1alpha and surface expression of ICAM-1 were significantly increased compared with non-activated platelets. The present study shows that activated platelets may contribute to expression of various inflammatory mediators on endothelial cells.
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Affiliation(s)
- J K Cha
- Department of Neurology, School of Medicine, Dong-A University, Pusan, Korea.
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19
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Lee SJ, Lee JH, Jin HJ, Lee JH, Ryu HY, Kim Y, Kong IS, Kim KW. A novel technique for the effective production of short peptide analogs from concatameric short peptide multimers. Mol Cells 2000; 10:236-40. [PMID: 10850668 DOI: 10.1007/s10059-000-0236-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
We designed a basic unit of the modified chicken gonadotropin releasing hormone II (cGnRH-II) peptide containing a trypsin cleavable linker peptide at both ends of the original peptide. We made a synthetic DNA coding for the modified cGnRH-II peptide with asymmetric and complementary cohesive ends of linker nucleotides. A tandemly repeated DNA cassette for the expression of concatameric short peptide multimers was constructed by ligating the basic units. The expressed peptide multimers were purified and subject to amino-terminal sequence analysis, which displayed the amino acid sequences expected from the designed nucleotides of the expression cassette. The monomeric cGnRH-II peptide analogs were generated after trypsin digestion. The present results showed that the technique developed for the production of the concatameric peptide multimers with cleavable linker peptides can be generally applicable to the production of short peptide analogs.
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Affiliation(s)
- S J Lee
- Biotechnology Division, National Fisheries Research & Development Institute, Pusan, Korea
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20
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Jin HJ, Song ZY. [Determination of serumal soluble interleukin-2 receptor levels in patients with tonsillitis]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:24-5. [PMID: 12541439] [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] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To observe serumal soluble interleukin-2 receptor levels in patients with tonsillitis. METHOD SIL-2R levels in serum were detected in 68 patients with acute or chronic tonsillitis and 68 normal controls. RESULT The SIL-2R concentrations in patients with acute tonsillitis and in patients with chronic tonsillitis within attacking period were (642.2 +/- 87.2) x 10(3) U/L and (762.3 +/- 90.5) x 10(3) U/L, respectively. Both were significantly higher than those of the controls (285.5 +/- 49.6) x 10(3) U/L (P < 0.001). Moreover the latter was higher than the former (P < 0.001). There was no difference between the patients with chronic tonsillitis within non-attacking period and the controls (P > 0.05). After treatment of antibiotics for 3-5 days, the SIL-2R Concentrations in serum in valid cases were obviously becoming lower. CONCLUSION Determination of SIL-2R in serum was valuable for the diagnosis and curative effect judgement of tonsillitis.
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Affiliation(s)
- H J Jin
- Department of Otorhinolaryngology, People's Hospital of Puyang City, Henan Province, Puyang 457000
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Jin HJ. ermSF, a ribosomal RNA adenine N6-methyltransferase gene from Streptomyces fradiae, confers MLS (macrolide-lincosamide-streptogramin B) resistance to E. coli when it is expressed. Mol Cells 1999; 9:252-7. [PMID: 10420982] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
Abstract
The Erm family of methyltransferases confers the MLS antibiotic resistance to pathogenic microorganism through the mono- or dimethylation of a single adenine residue in 23S rRNA, which is known as the target site for modification. One of the erm genes, ermSF was cloned from Streptomyces fradiae NRRL 2702 by PCR and overexpressed in E. coli BL21(DE3) as both a soluble protein and insoluble aggregate (inclusion body) using the T7 promoter driven expression vector, pET23b. Even though most of the overexpressed protein existed as an inclusion body, E. coli cells showed resistance to erythromycin. The lowering of incubation temperature from 37 degrees C to 22 degrees C facilitated the purification of the protein by increasing the fraction of soluble protein. The soluble protein was purified using immobilized metal ion (Ni2+) affinity chromatography in a one-step manner to the apparent homogeneity. The 23S rRNA of E. coli was found to be a good substrate for the purified ErmSF.
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Affiliation(s)
- H J Jin
- Department of Genetic Engineering, College of Natural Science, The University of Suwon, Korea.
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Abstract
Human cytochrome P450 4F2 shows high regioselectivity in omega-hydroxylation of stearic acid and leukotriene B4. As a first step of its regulation study, human cytochrome P450 4F2 genomic DNA was isolated from liver of a person who was administered clofibrate for 10 years. From Southern hybridization, restriction enzyme digestion and sequencing experiments, isolated genomic DNA fragment was found to contain around 32 Kb DNA and more than 20 Kb of 5' end regulatory region. Sequences of the structural gene region revealed exon 1 and exon 2. Further regulation studies would elucidate the feedback mechanisms of the oxidative degradation of fatty acids, inflammatory response and the clearance of leukotriene B4 in the liver. Furthermore, regulation study of this gene could explain the species difference in response to peroxisome proliferator and help in the safety evaluation of peroxisome proliferating chemicals to human being.
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Affiliation(s)
- H J Jin
- Division of Life Science, College of Natural Science, University of Suwon, Whasung-gun, Korea
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Zhou XH, Sun XF, Guo YX, Lei XG, Chen XF, Liu Z, Zhang YH, Jin HJ, Luo YX, Wen SX, Yuan GJ, Li GS, Yang CX. Excited states in neutron-deficient 198Bi. Phys Rev C Nucl Phys 1996; 54:2948-2953. [PMID: 9971666 DOI: 10.1103/physrevc.54.2948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Kovalic D, Giannattasio RB, Jin HJ, Weisblum B. 23S rRNA domain V, a fragment that can be specifically methylated in vitro by the ErmSF (TlrA) methyltransferase. J Bacteriol 1994; 176:6992-8. [PMID: 7961463 PMCID: PMC197072 DOI: 10.1128/jb.176.22.6992-6998.1994] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [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] [Indexed: 01/28/2023] Open
Abstract
The DNA sequence that encodes 23S rRNA domain V of Bacillus subtilis, nucleotides 2036 to 2672 (C. J. Green, G. C. Stewart, M. A. Hollis, B. S. Vold, and K. F. Bott, Gene 37:261-266, 1985), was cloned and used as a template from which to transcribe defined domain V RNA in vitro. The RNA transcripts served as a substrate in vitro for specific methylation of B. subtilis adenine 2085 (adenine 2058 in Escherichia coli 23S rRNA) by the ErmSF methyltransferase, an enzyme that confers resistance to the macrolide-lincosamide-streptogramin B group of antibiotics on Streptomyces fradiae NRRL 2702, the host from which it was cloned. Thus, neither RNA sequences belonging to domains other than V nor the association of 23S rRNA with ribosomal proteins is needed for the specific methylation of adenine that confers resistance to the macrolide-lincosamide-streptogramin B group of antibiotics.
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Affiliation(s)
- D Kovalic
- Department of Pharmacology, University of Wisconsin Medical School, Madison 53706
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