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Li H, Tang Y, Ren J, Bai R, Hu L, Jia W, Cao Y, Hong L, Xu M, Gao S, Shi Y, Pan S, Wang L, Zheng K, Zhao S, Wang H. Identification of novel B-1 transitional progenitors by B-1 lymphocyte fate-mapping transgenic mouse model Bhlhe41dTomato-Cre. Front Immunol 2022; 13:946202. [PMID: 36189231 PMCID: PMC9520467 DOI: 10.3389/fimmu.2022.946202] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
B-1 lymphocytes exhibit specialized roles in host defense against multiple pathogens. Despite the fact that CD19+CD93+B220lo/- B cells have been identified as B-1 progenitors, the definition for B-1 progenitors remains to be elucidated as CD19+CD93+B220+ B cells are capable to give rise to B-1 cells. Given that transcription factor Bhlhe41 is highly and preferentially expressed in B-1 cells and regulates B-1a cell development, we generated a transgenic mouse model, Bhlhe41dTomato-Cre, for fate mapping and functional analysis of B-1 cells. Bhlhe41dTomato-Cre mice efficiently traced Bhlhe41 expression, which was mainly restricted to B-1 cells in B-cell lineage. We showed an efficient and specific Cre-mediated DNA recombination in adult B-1 cells and neonatal B-1 progenitors rather than B-2 cells by flow cytometric analysis of Bhlhe41dTomato-Cre/+Rosa26EYFP mice. Treatment of Bhlhe41dTomato-Cre/+Rosa26iDTR mice with diphtheria toxin revealed a robust efficacy of B-1 cell depletion. Interestingly, using Bhlhe41dTomato-Cre mice, we demonstrated that neonatal B-1 progenitors (CD19+CD93+B220lo/-) expressed Bhlhe41 and were identical to well-defined transitional B-1a progenitors (CD19+CD93+B220lo/-CD5+), which only gave rise to peritoneal B-1a cells. Moreover, we identified a novel population of neonatal splenic CD19hidTomato+B220hiCD43loCD5lo B cells, which differentiated to peritoneal B-1a and B-1b cells. Bhlhe41 deficiency impaired the balance between CD19hidTomato+B220lo/-CD5hi and CD19hidTomato+B220hiCD5lo cells. Hence, we identified neonatal CD19hidTomato+B220hiCD43loCD5lo B cells as novel transitional B-1 progenitors. Bhlhe41dTomato-Cre/+ mouse can be used for fate mapping and functional studies of B-1 cells in host-immune responses.
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Affiliation(s)
- Hui Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Yangyang Tang
- Department of Nursing, Jiangsu Provincial Xuzhou Pharmaceutical Vocational College, Xuzhou, China
| | - Jinfeng Ren
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Ruixue Bai
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Lang Hu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Wenyu Jia
- Department of Dermatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yiwei Cao
- Department of Biotechnology, School of Life Sciences, Xuzhou Medical University, Xuzhou, China
| | - Li Hong
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Meizhen Xu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Sijia Gao
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Yanbiao Shi
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Shuai Pan
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Liang Wang
- Institute of Neuroscience and Department of Neurology of The Second Affiliated Hospital, National Health Commission and Chinese Academy of Medical Sciences Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou, China
| | - Kuiyang Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
- *Correspondence: Hui Wang, ; Shuli Zhao, ; Kuiyang Zheng,
| | - Shuli Zhao
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- *Correspondence: Hui Wang, ; Shuli Zhao, ; Kuiyang Zheng,
| | - Hui Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
- National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
- *Correspondence: Hui Wang, ; Shuli Zhao, ; Kuiyang Zheng,
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Ruyani A, Putri RZE, Jundara P, Gresinta E, Ansori I, Sundaryono A. Protective Effect of Leaf Ethanolic Extract Etlingera hemisphaerica Blume Against Mercuric Chloride Toxicity in Blood of Mice. J Diet Suppl 2018; 16:51-65. [PMID: 29451842 DOI: 10.1080/19390211.2018.1429516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This research was intended to investigate the protective effect of leaf ethanolic extract Etlingera hemisphaerica Blume (LE3H) against mercuric chloride (HgCl2) toxicity in blood of mice (Mus musculus). The experimental animals, 95 male M. musculus, received drink and food ad libitum. Three materials were tested: LE3H (0.13, 0.26, 0.39 mg/g body weight [bw]) was administered by gavage; HgCl2 (5 mg/kg bw) was administrated by gavage or intraperitoneal injection; and Imunos (the nutritional supplement to stimulate the immune system; 0.2 mg/g bw), as a positive control for LE3H treatment, was given by gavage. Blood samples were taken from the tails for determining number of blood cells. The animals were killed by cervical dislocation (CD), and then blood samples were collected from the hearts for protein electrophoresis. Results revealed the same number of leukocytes with LE3H (0.39 mg/g bw) treatment as with the Imunos treatment. HgCl2 administration increased leukocytes and decreased erythrocytes; HgCl2 administration followed by LE3H (0.39 mg/g bw) treatment protected the amount of blood cells as well as the control. HgCl2 administration showed a new 125 kDa protein and caused overexpression of 48 kDa protein; this protein profile could be protected by LE3H (0.39 mg/g bw) treatment as in the control condition. We conclude that LE3H provides a protective effect against HgCl2 toxicity in blood of M. musculus.
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Affiliation(s)
- Aceng Ruyani
- a Graduate School of Science Education , Bengkulu University , Bengkulu , Indonesia.,b Department of Biology Education , Bengkulu University , Bengkulu , Indonesia
| | | | - Pauzi Jundara
- b Department of Biology Education , Bengkulu University , Bengkulu , Indonesia
| | - Efri Gresinta
- c Department of Biology , Indraprasta University , Jakarta , Indonesia
| | - Irwandi Ansori
- b Department of Biology Education , Bengkulu University , Bengkulu , Indonesia
| | - Agus Sundaryono
- a Graduate School of Science Education , Bengkulu University , Bengkulu , Indonesia
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Sá I, da Costa MJP, Cunha EM. Lead hepatotoxicology: a study in an animal model. Toxicol Ind Health 2011; 28:108-13. [PMID: 21665903 DOI: 10.1177/0748233711407240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The increasing use of lead (Pb) for industrial purposes has resulted in the significant increase in environmental contamination of our planet especially in concern to water and food. In this study using the electron scanning microscopy (SEM), the authors showed the effects of this metal as a result of a chronic and cumulative process. As a primary method of detection of Pb in situ, SEM was chosen, coupled with a detection system Noran Voyager of basic microanalysis X-ray (SEM-XRM), with detection system energy dispersive spectrometry. Mice BALB/c was used as a study model. An animal model of inflammation was used, that consisted in the formation of a subcutaneous pocket of air. It was observed that 75% of Pb stock was captured by the liver, the main target organ in the capture of the metal, the kidney was the second organ to capture the Pb stock and the third was the spleen. It was verified that a low deposition of Pb was found in the lungs and the brain. The main results of this study showed how Pb is captured by different organs. We also demonstrated the vulnerability to inflammation of this metal.
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Affiliation(s)
- I Sá
- IMM - Instituto de Medicina Molecular da Faculdade de Medicina de Lisboa, Lisbon, Portugal
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Correlations between gene expression and mercury levels in blood of boys with and without autism. Neurotox Res 2009; 19:31-48. [PMID: 19937285 PMCID: PMC3006666 DOI: 10.1007/s12640-009-9137-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Revised: 10/15/2009] [Accepted: 11/10/2009] [Indexed: 01/23/2023]
Abstract
Gene expression in blood was correlated with mercury levels in blood of 2- to 5-year-old boys with autism (AU) compared to age-matched typically developing (TD) control boys. This was done to address the possibility that the two groups might metabolize toxicants, such as mercury, differently. RNA was isolated from blood and gene expression assessed on whole genome Affymetrix Human U133 expression microarrays. Mercury levels were measured using an inductively coupled plasma mass spectrometer. Analysis of covariance (ANCOVA) was performed and partial correlations between gene expression and mercury levels were calculated, after correcting for age and batch effects. To reduce false positives, only genes shared by the ANCOVA models were analyzed. Of the 26 genes that correlated with mercury levels in both AU and TD boys, 11 were significantly different between the groups (P(Diagnosis*Mercury) ≤ 0.05). The expression of a large number of genes (n = 316) correlated with mercury levels in TD but not in AU boys (P ≤ 0.05), the most represented biological functions being cell death and cell morphology. Expression of 189 genes correlated with mercury levels in AU but not in TD boys (P ≤ 0.05), the most represented biological functions being cell morphology, amino acid metabolism, and antigen presentation. These data and those in our companion study on correlation of gene expression and lead levels show that AU and TD children display different correlations between transcript levels and low levels of mercury and lead. These findings might suggest different genetic transcriptional programs associated with mercury in AU compared to TD children.
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