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Ji J, Zhang Y, Wang D, Wang Y. Efficient removal of PAHs from peanut oil using coconut shell-based activated charcoal decorated by cationic (CTAB), anionic (SDS), non-ionic surfactant (Triton X-100). Food Chem 2024; 438:137962. [PMID: 37976872 DOI: 10.1016/j.foodchem.2023.137962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/30/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
The coconut shell-based activated charcoal was decorated by three different electronegativities of surfactants (CTAB, SDS, and Triton X-100) through the impregnation method, and the decorated activated charcoal adsorbents were used for the removal of PAHs from peanut oil, respectively. The influence of surfactant decoration on the adsorption and detoxification effect of coconut shell-based activated charcoal was discussed. The thermodynamic and kinetic behaviors of PAHs adsorption on the surfactant-modified activated charcoal were investigated, and the adsorption mechanism was analyzed in-depth. Notably, the prepared modified coconut shell activated charcoal could not only remove more than 90% of PAHs from the peanut oil but also keep the cytotoxicity of the treated peanut oil low. Meanwhile, the detoxification procedure has little effect on the nutritional quality and flavor of the peanut oil. The results of this fundamental study demonstrate that the low-cost surfactant-modified coconut shell-based activated charcoal was effective and feasible.
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Affiliation(s)
- Junmin Ji
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Yaxin Zhang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Dan Wang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Yan Wang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China
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2
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Dong W, Tian C, Li ZG, Brand D, Cao Y, Liu X, Ma J, Chai A, Myers LK, Yan J, Hasty K, Stuart J, Jiao Y, Gu W, Cai X. Variation of sexual dimorphism and asymmetry in disease expression of inflammatory arthritis among laboratory mouse models with different genomic backgrounds. Lab Anim Res 2023; 39:35. [PMID: 38115139 PMCID: PMC10731690 DOI: 10.1186/s42826-023-00185-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 11/30/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023] Open
Abstract
Sex difference has shown in the arthritis diseases in human population and animal models. We investigate how the sex and symmetry vary among mouse models with different genomic backgrounds. Disease data of sex and limbs accumulated in the past more than two decades from four unique populations of murine arthritis models were analyzed. They are (1) interleukin-1 receptor antagonist (IL-1ra) deficient mice under Balb/c background (Balb/c KO); (2) Mice with collagen II induced arthritis under DBA/1 background; (3) Mice with collagen II induced arthritis under C57BL/6 (B6) background and (4) A F2 generation population created by Balb/c KO X DBA/1 KO. Our data shows that there is a great variation in sexual dimorphism for arthritis incidence and severity of arthritis in mice harboring specific genetic modifications. For a F2 population, the incidence of arthritis was 57.1% in female mice and 75.6% in male mice. There was a difference in severity related to sex in two populations: B6.DR1/ B6.DR4 (P < 0.001) and F2 (P = 0.023) There was no difference Balb/c parental strain or in collagen-induced arthritis (CIA) in DBA/1 mice. Among these populations, the right hindlimbs are significantly higher than the scores for the left hindlimbs in males (P < 0.05). However, when examining disease expression using the collagen induced arthritis model with DBA/1 mice, sex-dimorphism did not reach statistical significance, while left hindlimbs showed a tendency toward greater disease expression over the right. Sexual dimorphism in disease expression in mouse models is strain and genomic background dependent. It sets an alarm that potential variation in sexual dimorphism among different racial and ethnic groups in human populations may exist. It is important to not only include both sexes and but also pay attention to possible variations caused by disease expression and response to treatment in all the studies of arthritis in animal models and human populations.
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Affiliation(s)
- Wei Dong
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
- Department of Gynecology, Harbin Medical University Cancer Hospital, Harbin, 150001, Heilongjiang, China
| | - Cheng Tian
- St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Z Galvin Li
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - David Brand
- Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Yanhong Cao
- Institute of Kaschin-Beck Disease, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Key Laboratory of Etiologic Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618104), Harbin Medical University, Harbin, 150081, China
| | - Xiaoyun Liu
- Center for Clinical Precision Medication, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510006, China
- Clinical Pharmacy (School of Integrative Pharmacy, Institute of Integrative Pharmaceutical Research), Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jiamin Ma
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Andy Chai
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Linda K Myers
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Jian Yan
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Karen Hasty
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - John Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Yan Jiao
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Weikuan Gu
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
- Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
| | - Xiaojun Cai
- Heilongjiang Academy of Sciences of Traditional Chinese Medicine, No. 72 Xiangan Street, Xiangfang District, Harbin, 150036, China.
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Wang Y, Wang J, Zheng W, Zhang J, Wang J, Jin T, Tao P, Wang Y, Liu C, Huang J, Lee PY, Yu X, Zhou Q. Identification of an IL-1 receptor mutation driving autoinflammation directs IL-1-targeted drug design. Immunity 2023:S1074-7613(23)00231-5. [PMID: 37315560 DOI: 10.1016/j.immuni.2023.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/27/2023] [Accepted: 05/17/2023] [Indexed: 06/16/2023]
Abstract
The interleukin 1 (IL-1) pathway signals through IL-1 receptor type 1 (IL-1R1) and emerges as a central mediator for systemic inflammation. Aberrant IL-1 signaling leads to a range of autoinflammatory diseases. Here, we identified a de novo missense variant in IL-1R1 (p.Lys131Glu) in a patient with chronic recurrent multifocal osteomyelitis (CRMO). Patient PBMCs showed strong inflammatory signatures, particularly in monocytes and neutrophils. The p.Lys131Glu substitution affected a critical positively charged amino acid, which disrupted the binding of the antagonist ligand, IL-1Ra, but not IL-1α or IL-1β. This resulted in unopposed IL-1 signaling. Mice with a homologous mutation exhibited similar hyperinflammation and greater susceptibility to collagen antibody-induced arthritis, accompanied with pathological osteoclastogenesis. Leveraging the biology of the mutation, we designed an IL-1 therapeutic, which traps IL-1β and IL-1α, but not IL-1Ra. Collectively, this work provides molecular insights and a potential drug for improved potency and specificity in treating IL-1-driven diseases.
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Affiliation(s)
- Yusha Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China; Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China
| | - Jun Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Wenjie Zheng
- Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Jiahui Zhang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jinbo Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Taijie Jin
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Panfeng Tao
- Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China
| | - Yibo Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Chenlu Liu
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jiqian Huang
- Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Xiaomin Yu
- Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China; Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University, Hangzhou 311121, Zhejiang, China; Kidney Disease Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang, China.
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China; Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China.
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Tian C, Liu X, Zhu X, Cao Y, Deng N, Hasty KA, Stuart JM, Gu W, Jiao Y. Ifi204 as the most favored candidate gene that regulates susceptibility to spontaneous arthritis in mice deficient in IL-1ra. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu X, Jiao Y, Cao Y, Deng N, Ma Y, Hasty KA, Kang A, Chen H, Stuart JM, Gu W. Decreased expression levels of Ifi genes is associated to the increased resistance to spontaneous arthritis disease in mice deficiency of IL-1RA. BMC Immunol 2016; 17:25. [PMID: 27480124 PMCID: PMC4970213 DOI: 10.1186/s12865-016-0163-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/12/2016] [Indexed: 01/21/2023] Open
Abstract
Background The mouse strain BALB/c deficient in IL-1 receptor antagonist protein (Il-1ra) develops spontaneous arthritis disease (SAD) while the strain DBA/1 IL1rn-/- with the same deficiency does not. Previously, we mapped a QTL on chromosome 1 for SAD and then developed a congenic mouse strain BALB.D1-1-/- that contains the QTL genomic fragment associated with resistance from DBA/1-/- on a BALB/c-/- background. The congenic strain was relatively resistant to spontaneous arthritis and had delayed onset and reduced severity of disease. We obtained whole genome expression profiles from the spleen of the congenic strain BALB.D1-1-/- and four other strains, the wild type BALB/c, DBA/1 and the deficient DBA/1 IL1rn-/- and the BALB/c IL1rn-/-. We then compared the similarities and differences between the congenic strain and the four parental strains. Here we report the selected potential causal genes based on differential expression levels as well as function of genes. Results There is a considerable number of genes that are differentially expressed between the congenic strain and the three parental strains, BALB/c, DBA/1, and DBA/1-/-. However there only a few differentially expressed genes were identified by comparing the congenic strain and the BALB/c-/-strain. These differentially expressed genes are mainly from T-cell receptor beta chain (Tcrb) and interferon-activatable protein (Ifi) genes. These genes are also differentially expressed between congenic strain and BALB/c strains. However, their expression levels in the congenic strain are similar to that in DBA/1 and DBA/1-/-. The expression level of Tcrb-j gene is positively associated with two genes of Ifi gene 200 cluster. Conclusions Decreased expression levels of Ifi genes is associated to the increased resistance to spontaneous arthritis disease and with down regulation of expressions of Tcrb genes in the mouse congenic strain. Ifi genes may play an important role in the susceptibility to SAD in mice. Electronic supplementary material The online version of this article (doi:10.1186/s12865-016-0163-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoyun Liu
- Mudanjiang Medical College, Mudanjiang, HeilongJiang, 157001, People's Republic of China.,Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center (UTHSC), Memphis, TN, 38163, USA
| | - Yan Jiao
- Mudanjiang Medical College, Mudanjiang, HeilongJiang, 157001, People's Republic of China. .,Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center (UTHSC), Memphis, TN, 38163, USA.
| | - Yanhong Cao
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center (UTHSC), Memphis, TN, 38163, USA.,Institute of Kaschin-beck Disease, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China.,Key Laboratory of Etiologic Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618104), Harbin, 150081, China
| | - Nan Deng
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Yonghui Ma
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center (UTHSC), Memphis, TN, 38163, USA
| | - Karen A Hasty
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center (UTHSC), Memphis, TN, 38163, USA.,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA
| | - Andrew Kang
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Hong Chen
- Center of integrative research, The first Hospital of Qiqihaer City, 30 Gongyuan Road, Longsha District, Qiqihaer, Heilongjiang, 161005, People's Republic of China
| | - John M Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA
| | - Weikuan Gu
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center (UTHSC), Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
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6
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Deng N, Jiao Y, Cao Y, Liu X, Ma Y, Hasty KA, Brand DD, Stuart JM, Gu W. Genomic locus on chromosome 1 regulates susceptibility to spontaneous arthritis in mice deficiency of IL-1RA. BMC Immunol 2014; 15:57. [PMID: 25488730 PMCID: PMC4272550 DOI: 10.1186/s12865-014-0057-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 07/27/2014] [Accepted: 11/20/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To understand the role of genetic factors on chromosome 1 in the regulation of spontaneous arthritis in mice deficient in IL-1 receptor antagonist protein (IL_1RA), we previously used speed congenic breeding to transfer the QTL region from DBA/1(-/-) mice that are resistant to spontaneous arthritis into BALB/c(-/-) mice which are susceptible. We were able to establish two congenic strains which exhibited a delayed onset and reduced severity of disease. In this study, we asked a different set of questions. How will the QTL region from BALB/c(-/-) interact with the rest of the genome in the DBA/1(-/-) background? Will the DBA/1(-/-) mice become susceptible to spontaneous arthritis if the QTL genomic region on chromosome 1 was replaced with the genomic fragment of the same region from BALB/c(-/-)? We conducted the congenic breeding with the similar procedure as that of congenic strains with BALB/c(-/-) background. RESULT Instead of BALB/c(-/-), DBA/1(-/-) was used as the recurrent parent while BALB/c(-/-) was used as the donor parent. By the 6(th) generation we determined that all of the chromosomes in the progeny were of DBA/1(-/-) origin with the exception of the QTL portion of chromosome 1 which is heterozygous of BALB/c(-/-) and DBA/1(-/-) origin. We then intercrossed selected mice to produce homozygous strains containing the homozygous genomic region of BALB/c(-/-) on chromosome 1, while the rest of genome are homozygous DBA/1(-/-). This strain was observed for the development of spontaneous arthritis. Up to 9 weeks of age, both congenic strain and DBA/1(-/-) did not develop arthritis. However, after 9 weeks, the congenic strain started to exhibit signs of arthritis, while the DBA/1(-/-) remained free from disease. CONCLUSION The result indicates a strong influence of genetic factor(s) on the QTL of chromosome 1 on the susceptibility to spontaneous arthritis. Identification of genetic factors within this QTL region in the future will significantly enhance our understanding of molecular mechanism of spontaneous arthritis.
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Affiliation(s)
- Nan Deng
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Yan Jiao
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Mudanjiang Medical College, Mudanjiang, Heilongjiang, 157001, PR China.
| | - Yanhong Cao
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Institute of Kaschin-Beck Disease, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Key Laboratory of Etiologic Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618104), Harbin Medical University, Harbin, 150081, China.
| | - Xiaoyun Liu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Yonghui Ma
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Karen A Hasty
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
| | - David D Brand
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA. .,Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - John M Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
| | - Weikuan Gu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis, TN, 38104, USA.
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7
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Cao Y, Liu X, Deng N, Jiao Y, Ma Y, Hasty KA, Stuart JM, Gu W. Congenic mice provide evidence for a genetic locus that modulates spontaneous arthritis caused by deficiency of IL-1RA. PLoS One 2013; 8:e68158. [PMID: 23840826 PMCID: PMC3695999 DOI: 10.1371/journal.pone.0068158] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 05/30/2013] [Indexed: 12/21/2022] Open
Abstract
To understand the role of genetic factors involved in the development of spontaneous arthritis in mice deficient in IL-1 receptor antagonist protein (IL_1RA), we have identified a genomic region containing a major quantitative trait locus (QTL) for this disease. The QTL is on chromosome 1 and appears to be the strongest genetic region regulating arthritis. To confirm the importance of the QTL and to identify potential candidate genes within it, we conducted speed congenic breeding to transfer the QTL region from DBA/1 mice that are resistant to spontaneous arthritis into BALB/c−/− which are susceptible. Genetic markers along every chromosome were used to assist in the selection of progeny in each generation to backcross to BALB/c−/−. By the 6th generation we determined that all of the chromosomes in the progeny were of BALB/c origin with the exception of portions of chromosome 1. At this stage we intercrossed selected mice to produce homozygous strains containing the genomic background of BALB/c−/− except for the QTL region on chromosome 1, which was from DBA/1. We were able to establish two congenic strains with overlapping DBA/1 DNA segments. These strains were observed for the development of spontaneous arthritis. Both congenic strains were relatively resistant to spontaneous arthritis and had delayed onset and reduced severity of disease. The gene/s that regulates this major QTL would appear to be located in the region of the QTL that is shared by both strains. The common transferred region is between D1Mit110 and D1Mit209 on chromosome 1. We evaluated this region for candidate genes and have identified a limited number of candidates. Confirmation of the identity and precise role of the candidates will require additional study.
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Affiliation(s)
- Yanhong Cao
- Institute of Kaschin-beck Disease, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University; Key Laboratory of Etiologic Epidemiology, Education Bureau of Heilongjiang Province and Ministry of Health (23618104), Harbin, China
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Xiaoyun Liu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Nan Deng
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Yan Jiao
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Yonghui Ma
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Karen A. Hasty
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - John M. Stuart
- Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- Research Service, Veterans Affairs Medical Center, 1030 Jefferson Avenue, Memphis Tennessee, United States of America
- * E-mail: (JMS); (WG)
| | - Weikuan Gu
- Departments of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- * E-mail: (JMS); (WG)
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Genomic dissection and prioritizing of candidate genes of QTL for regulating spontaneous arthritis on chromosome 1 in mice deficient for interleukin-1 receptor antagonist. J Genet 2012; 91:119-28. [PMID: 22942082 DOI: 10.1007/s12041-012-0148-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Rheumatoid arthritis is a heterogeneous disease with clinical and biological polymorphisms. IL-1RN is a protein that binds to interleukin-1 (IL-1) receptors and inhibits the binding of IL-1-alpha and IL-1-beta. IL-1RN levels are elevated in the blood of patients with a variety of infectious, immune, and traumatic conditions. Balb/c mice deficient in IL-1ra (mouse gene of IL-1RN) develop spontaneous autoimmune arthritis while DBA/1 mice deficient in IL-1ra do not. Previously, we identified a major QTL that regulates the susceptibility to arthritis in Balb/c mice with IL-1ra deficiency. In this study, we found that the QTL may contain two peaks that are regulated by two sets of candidate genes. By haplotype analysis, the total genomic regions of candidate genes were reduced from about 19 Mbp to approximately 9 Mbp. The total number of candidate genes was reduced from 208 to 21.
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Cao Y, Li C, Yan J, Jiao F, Liu X, Hasty KA, Stuart JM, Gu W, Jiao Y. Analysis of candidate genes of spontaneous arthritis in mice deficient for interleukin-1 receptor antagonist. Genes Genet Syst 2012; 87:107-13. [PMID: 22820384 DOI: 10.1266/ggs.87.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Previously, we identified a major quantitative trait locus (QTL) on mouse chromosome 1 that regulates the susceptibility to arthritis in an F2 population generated from arthritis-prone BALB/c and arthritis-resistant DBA/1 mice deficient for interleukin-1 receptor antagonist. To further select candidate genes for the QTL, we analyzed the expression patterns of arthritis in 38 F2 individuals and compared the expression levels of key candidate genes to the parental strains. Two distinct subpopulations of arthritic mice were identified in the 38 F2 mice. One subgroup of diseased mice was characterized by myeloid cell dominant inflammation, whereas the other was mainly associated with increased anti-apoptotic activities of inflammatory cells. Several differentially expressed important candidate genes in parental strains in the QTL region are relevant to myeloid cell, apoptotic activities, or to both. About one-quarter of those genes have been previously linked to arthritis in literature. The present study reveals two distinct subpopulations of arthritic mice with spontaneous arthritis due to deficiency for interleukin-1 receptor antagonist, suggesting that genes with function relevant to myeloid cell and/or apoptotic activities are most likely the key candidate genes for the QTL.
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Affiliation(s)
- Yanhong Cao
- Institute of Kaschin-Beck Disease, Center for Endemic Disease Control, Harbin Medical University, PR China
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Fujii H, Baba T, Yamagishi M, Kawano M, Mukaida N. The role of a chemokine receptor, CCR2, in suppressing the development of arthritis in IL-1 receptor antagonist-deficient mice. Inflamm Regen 2012. [DOI: 10.2492/inflammregen.32.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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