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Yaman Y, Bay V, Kişi YE. Discovery of host genetic factors through multi-locus GWAS against toxoplasmosis in sheep: addressing one health perspectives. BMC Vet Res 2025; 21:263. [PMID: 40221787 PMCID: PMC11992896 DOI: 10.1186/s12917-025-04719-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2025] [Accepted: 03/28/2025] [Indexed: 04/14/2025] Open
Abstract
Toxoplasma gondii stands as one of the most successful pathogens, capable of infecting nearly all warm-blooded species. It is estimated that up to 50% of human population might harbor Toxoplasmosis infections. One of the primary transmission routes is the consumption of tissue cysts from infected farm animals used for food production. Thus, controlling Toxoplasmosis in farm animals is of vital importance for human health and food safety. Selective breeding in farm animals, where available, could complement classical control measures like biosecurity measures, vaccination, and test-and-cull methods. This multidisciplinary approach will make the eradication of Toxoplasmosis more effective. For this purpose, we conducted four multi-locus genome-wide association (GWA) approaches to identify the polygenic factors underlying innate resistance to Toxoplasma gondii in naturally infected sheep. Our findings indicate that 16 single nucleotide polymorphisms (SNPs), exhibiting varying degrees of statistical power, play a significant role in host immunity against T. gondii infection. We propose the genes containing these SNPs or located within 100 ± Kb of them (PLSCR5, EPHA3, DGKB, IL12B, CGA, WDR64, TMEM158, CLMP, and SIAE) as potential candidate genes. This study represents the first exploration of host genetic factors against Toxoplasmosis in livestock, utilizing the ovine paradigm as its foundation.
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Affiliation(s)
- Yalçın Yaman
- Department of Genetics, Faculty of Veterinary Medicine, Siirt University, Siirt, 56000, Turkey.
| | - Veysel Bay
- Department of Animal Science, Faculty of Agriculture, Ege University, İzmir, 35100, Turkey
| | - Yiğit Emir Kişi
- Sheep Breeding and Research Institute, Bandırma/Balıkesir, 10200, Turkey
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2
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Peck RC, Knapp-Wilson A, Burley K, Dorée C, Griffin J, Mumford AD, Stanworth S, Sharplin K. Scoping Review of Factors Associated with Stem Cell Mobilization and Collection in Allogeneic Stem Cell Donors. Transplant Cell Ther 2024; 30:844-863. [PMID: 38851322 DOI: 10.1016/j.jtct.2024.06.002] [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: 03/07/2024] [Revised: 05/30/2024] [Accepted: 06/01/2024] [Indexed: 06/10/2024]
Abstract
There is wide interindividual variation in the efficacy of CD34+ cell mobilization and collection in healthy allogenic hematopoietic stem cell donors. Donor characteristics, blood cell counts, and various factors related to mobilization and collection have been associated with blood CD34+ cell count and CD34+ cell yield after granulocyte colony-stimulating factor (G-CSF) mobilization and collection. Given the heterogenous nature of the literature reporting these associations, in this scoping review we clarify the determinants of CD34+ count and yield. Studies published between 2000 and 2023 reporting allogeneic donors undergoing G-CSF mobilization and peripheral blood stem cell (PBSC) collection were evaluated. Eligible studies were those that assessed blood CD34+ cell count or CD34+ cell yield in the first PBSC collection after mobilization with 4 or 5 days of G-CSF treatment. Associations were recorded between these outcomes and donor factors (age, sex, weight, ethnicity), mobilization factors (G-CSF scheduling or dose), collection factors (venous access, processed blood volume [PBV]) or laboratory factors (blood cell counts at baseline or after mobilization). The 52 studies evaluated between 15 and 20,884 donors. Forty-three studies were retrospective, 33 assessed blood CD34+ cell counts, and 39 assessed CD34+ cell yield from PBSCs. Blood CD34+ cell counts consistently predicted CD34+ cell yield. Younger donors usually had higher blood CD34+ cell counts and CD34+ cell yield. Most studies that investigated the effect of donor ancestry found that donors of non-European ancestry had higher blood CD34+ cell counts after mobilization and higher CD34+ cell yields from collection. The poor consensus about the best predictors of blood CD34+ cell count and yield necessitates further prospective studies, particularly of the role of donor ancestry. The current focus on donor sex as a major predictor requires re-evaluation.
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Affiliation(s)
- Rachel C Peck
- NHS Blood and Transplant, Bristol, United Kingdom; Faculty of Life Sciences, University of Bristol, Bristol, United Kingdom.
| | - Amber Knapp-Wilson
- Faculty of Life Sciences, University of Bristol, Bristol, United Kingdom
| | - Kate Burley
- Faculty of Life Sciences, University of Bristol, Bristol, United Kingdom
| | - Carolyn Dorée
- Systematic Review Initiative, NHS Blood and Transplant, Oxford, United Kingdom
| | | | - Andrew D Mumford
- Faculty of Life Sciences, University of Bristol, Bristol, United Kingdom
| | - Simon Stanworth
- NHS Blood and Transplant, Bristol, United Kingdom; Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
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3
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Soukup AA, Bresnick EH. Gata2 noncoding genetic variation as a determinant of hematopoietic stem/progenitor cell mobilization efficiency. Blood Adv 2023; 7:7564-7575. [PMID: 37871305 PMCID: PMC10761364 DOI: 10.1182/bloodadvances.2023011003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 10/25/2023] Open
Abstract
Germline genetic variants alter the coding and enhancer sequences of GATA2, which encodes a master regulator of hematopoiesis. The conserved murine Gata2 enhancer (+9.5) promotes hematopoietic stem cell (HSC) genesis during embryogenesis. Heterozygosity for a single-nucleotide Ets motif variant in the human enhancer creates a bone marrow failure and acute myeloid leukemia predisposition termed GATA2 deficiency syndrome. The homozygous murine variant attenuates chemotherapy- and transplantation-induced hematopoietic regeneration, hematopoietic stem and progenitor cell (HSPC) response to inflammation, and HSPC mobilization with the therapeutic mobilizer granulocyte colony-stimulating factor (G-CSF). Because a Gata2 +9.5 variant attenuated G-CSF-induced HSPC expansion and mobilization, and HSC transplantation therapies require efficacious mobilization, we tested whether variation affects mechanistically distinct mobilizers or only those operating through select pathways. In addition to affecting G-CSF activity, Gata2 variation compromised IL-8/CXCR2- and VLA-4/VCAM1-induced mobilization. Although the variation did not disrupt HSPC mobilization mediated by plerixafor, which functions through CXCR4/CXCL12, homozygous and heterozygous variation attenuated mobilization efficacy of the clinically used plerixafor/G-CSF combination. The influence of noncoding variation on HSPC mobilization efficacy and function is important clinically because comprehensive noncoding variation is not commonly analyzed in patients. Furthermore, our mobilization-defective system offers unique utility for elucidating fundamental HSPC mechanisms.
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Affiliation(s)
- Alexandra A. Soukup
- Wisconsin Blood Cancer Research Institute, Department of Cell and Regenerative Biology, Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Emery H. Bresnick
- Wisconsin Blood Cancer Research Institute, Department of Cell and Regenerative Biology, Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI
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Shimizu Y, Hayakawa H, Honda E, Sasaki N, Takada M, Okada T, Ohira T, Kiyama M. HbA1c and height loss among Japanese workers: A retrospective study. PLoS One 2023; 18:e0291465. [PMID: 37796945 PMCID: PMC10553312 DOI: 10.1371/journal.pone.0291465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 08/25/2023] [Indexed: 10/07/2023] Open
Abstract
Evaluating the risk of height loss could be an efficient way to evaluate endothelial health, which might be associated with all-cause and cardiovascular mortality. Diabetes is an established risk factor both for intervertebral disk degeneration and osteoporosis-related fractures, which are major risk factors for height loss among adults. Therefore, hemoglobin A1c (HbA1c), as an indicator of the presence of diabetes, could be positively associated with height loss. A retrospective study of 10,333 workers aged 40 to 74 years was conducted. Height loss was defined as being in the highest quintile of height decrease per year. HbA1c in the normal range was positively associated with height loss. The known cardiovascular risk factors-adjusted odds ratio (OR) and 95% confidence interval (CI) for height loss with a 1-standard deviation (SD) increase in HbA1c (0.38% for both men and women) was 1.06 (1.02, 1.10) for men and 1.15 (1.07, 1.23) for women, respectively. When limit those analysis among those without diabetes, the magnitude was slightly higher; the fully adjusted OR and 95% CI for height loss with a 1-SD increase in HbA1c was 1.19 (1.11, 1.28) for men and 1.32 (1.20, 1.44) for women, respectively. Even when HbA1c is within the normal range, higher HbA1c is a significant risk factor for height loss among workers.
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Affiliation(s)
- Yuji Shimizu
- Division of Public Health, Osaka Institute of Public Health, Epidemiology Section, Osaka, Japan
- Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Hidenobu Hayakawa
- Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Eiko Honda
- Division of Public Health, Osaka Institute of Public Health, Epidemiology Section, Osaka, Japan
- Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Nagisa Sasaki
- Division of Public Health, Osaka Institute of Public Health, Epidemiology Section, Osaka, Japan
- Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Midori Takada
- Division of Public Health, Osaka Institute of Public Health, Epidemiology Section, Osaka, Japan
- Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Takeo Okada
- Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Tetsuya Ohira
- Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Masahiko Kiyama
- Department of Cardiovascular Disease Prevention, Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
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Wang TF, Liou YS, Chang HH, Yang SH, Li CC, Wang JH, Sun DS. Correlation of Body Mass Index and Proinflammatory Cytokine Levels with Hematopoietic Stem Cell Mobilization. J Clin Med 2022; 11:4169. [PMID: 35887932 PMCID: PMC9317243 DOI: 10.3390/jcm11144169] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 12/04/2022] Open
Abstract
This study investigated the correlation of body mass index (BMI) and proinflammatory cytokine levels with hematopoietic stem cell (HSC) mobilization triggered by granulocyte colony-stimulating factor (G-CSF). Stem cell donors (n = 309) were recruited between August 2015 and January 2018 and grouped into four groups according to their BMI: underweight (BMI < 18.5 kg/m2, n = 10), normal (18.5 kg/m2 ≦ BMI < 25 kg/m2, n = 156), overweight (25 kg/m2 ≦ BMI < 30 kg/m2, n = 102), and obese (BMI ≧ 30 kg/m2, n = 41). The participants were then administered with five doses of G-CSF and categorized as good mobilizers (CD34 ≧ 180/μL, n = 15, 4.85%) and poor mobilizers (CD34 ≦ 25/μL, n = 14, 4.53%) according to the number of CD34+ cells in their peripheral blood after G-CSF administration. The correlation between BMI and HSC mobilization was then analyzed, and the levels of proinflammatory cytokines in the plasma from good and poor mobilizers were examined by ProcartaPlex Immunoassay. Results showed that BMI was highly correlated with G-CSF-triggered HSC mobilization (R2 = 0.056, p < 0.0001). Compared with poor mobilizers, good mobilizers exhibited higher BMI (p < 0.001) and proinflammatory cytokine [interferon gamma (IFN-γ) (p < 0.05), interleukin-22 (IL-22) (p < 0.05), and tumor necrosis factor alpha (TNF-α) levels (p < 0.05)]. This study indicated that BMI and proinflammatory cytokine levels are positively correlated with G-CSF-triggered HSC mobilization.
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Grants
- MOST105-2633-B-320-001 The Ministry of Science and Technology, Taiwan
- MOST106-2633-B-320-001 The Ministry of Science and Technology, Taiwan
- MOST108-2311-B-320-001 The Ministry of Science and Technology, Taiwan
- TCMMP104-06 Buddhist Tzu Chi Medical Foundation
- TCMMP108-04 Buddhist Tzu Chi Medical Foundation
- TCMMP111-01 Buddhist Tzu Chi Medical Foundation
- TCRD106-42 Buddhist Tzu Chi General Hospital, Hualien, Taiwan
- TCRD108-55 Buddhist Tzu Chi General Hospital, Hualien, Taiwan
- TCRD110-61 Buddhist Tzu Chi General Hospital, Hualien, Taiwan
- TCRD111-082 Buddhist Tzu Chi General Hospital, Hualien, Taiwan
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Affiliation(s)
- Tso-Fu Wang
- Department of Hematology and Oncology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan; (T.-F.W.); (C.-C.L.)
- Department of Medicine, College of Medicine, Tzu Chi University, Hualien 97004, Taiwan;
- Buddhist Tzu Chi Stem Cells Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan
| | - Yu-Shan Liou
- Department of Molecular Biology and Human Genetics, College of Medicine, Tzu Chi University, Hualien 97004, Taiwan; (Y.-S.L.); (H.-H.C.)
| | - Hsin-Hou Chang
- Department of Molecular Biology and Human Genetics, College of Medicine, Tzu Chi University, Hualien 97004, Taiwan; (Y.-S.L.); (H.-H.C.)
| | - Shang-Hsien Yang
- Department of Medicine, College of Medicine, Tzu Chi University, Hualien 97004, Taiwan;
- Buddhist Tzu Chi Stem Cells Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan
- Department of Pediatrics, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan
| | - Chi-Cheng Li
- Department of Hematology and Oncology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan; (T.-F.W.); (C.-C.L.)
- Center of Stem Cell & Precision Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan
| | - Jen-Hung Wang
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan;
| | - Der-Shan Sun
- Department of Molecular Biology and Human Genetics, College of Medicine, Tzu Chi University, Hualien 97004, Taiwan; (Y.-S.L.); (H.-H.C.)
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Potential role of diacylglycerol kinases in immune-mediated diseases. Clin Sci (Lond) 2021; 134:1637-1658. [PMID: 32608491 DOI: 10.1042/cs20200389] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/08/2020] [Accepted: 06/22/2020] [Indexed: 02/07/2023]
Abstract
The mechanism promoting exacerbated immune responses in allergy and autoimmunity as well as those blunting the immune control of cancer cells are of primary interest in medicine. Diacylglycerol kinases (DGKs) are key modulators of signal transduction, which blunt diacylglycerol (DAG) signals and produce phosphatidic acid (PA). By modulating lipid second messengers, DGK modulate the activity of downstream signaling proteins, vesicle trafficking and membrane shape. The biological role of the DGK α and ζ isoforms in immune cells differentiation and effector function was subjected to in deep investigations. DGK α and ζ resulted in negatively regulating synergistic way basal and receptor induced DAG signals in T cells as well as leukocytes. In this way, they contributed to keep under control the immune response but also downmodulate immune response against tumors. Alteration in DGKα activity is also implicated in the pathogenesis of genetic perturbations of the immune function such as the X-linked lymphoproliferative disease 1 and localized juvenile periodontitis. These findings suggested a participation of DGK to the pathogenetic mechanisms underlying several immune-mediated diseases and prompted several researches aiming to target DGK with pharmacologic and molecular strategies. Those findings are discussed inhere together with experimental applications in tumors as well as in other immune-mediated diseases such as asthma.
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Mikhael N, Mossad A, Ayad M, Nafae D. Impact of CD44 gene single nucleotide polymorphism (rs 13347) in mobilization of autologous HSCT. Transfus Apher Sci 2020; 59:102869. [PMID: 32620411 DOI: 10.1016/j.transci.2020.102869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 06/05/2020] [Accepted: 06/19/2020] [Indexed: 11/24/2022]
Abstract
MOBILIZATION: of stem cells into peripheral blood is a crucial step in the procedure of autologous stem cell transplantation. Mobilization can be affected by many variables;underlying diseases, prior treatment and age. Many genetic polymorphisms mainly in adhesion molecules are thought to affect mobilization success. The CD44 is a cell adhesion molecule which is highly heterogeneous structurally. Polymorphisms in this molecule may impair HSC lodgment in the bone marrow. THE AIM OF THE WORK was to assess the impact of CD44 single nucleotide polymorphism (rs13347) on the efficacy of mobilization of CD34+ hematopoietic progenitor cells in a cohort of Egyptian patients treated for lymphoma and multiple myeloma and scheduled for autologous stem cell transplantation. PATIENTS AND METHODS the study was conducted on 92 patients scheduled for autologous HSC mobilization and transplantation. SNP genotyping was done by 5 ꞌ nuclease assay on rotor gene. RESULTS A statistical significant difference was detected between the patients with genotypes (CT + CC) and patients with (TT) genotype regarding the number of apheresis sessions required to gather the target CD34 count (p = 0.006).T allele is implicated in poorer mobilization. CONCLUSIONS CD44 SNPs analysis may be helpful for predicting the poor mobilizers. These patients may benefit from newer modalities like adhesion molecules inhibitors.
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Affiliation(s)
- Neveen Mikhael
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Egypt.
| | - Amany Mossad
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Egypt
| | - Mona Ayad
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Egypt
| | - Dalia Nafae
- Department of Internal Medicine, Faculty of Medicine, Alexandria University, Egypt
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Analysis of a large single institution cohort of related donors fails to detect a relation between SDF1/CXCR4 or VCAM/VLA4 genetic polymorphisms and the level of hematopoietic progenitor cell mobilization in response to G-CSF. PLoS One 2020; 15:e0228878. [PMID: 32134938 PMCID: PMC7058310 DOI: 10.1371/journal.pone.0228878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 01/24/2020] [Indexed: 02/07/2023] Open
Abstract
We studied a cohort of 367 healthy related donors who volunteered to donate their hematopoietic stem cells for allogeneic transplantation. All donors were homogeneously cared for at a single institution, and received rhG-CSF as a mobilization treatment prior to undergoing apheresis. Peripheral blood CD34+ cell counts were used as the main surrogate marker for rhG-CSF induced mobilization. We searched whether inter-individual variations in known genetic polymorphisms located in genes whose products are functionally important for mobilization, could affect the extent of CD34+ mobilization, either individually or in combination. We found little or no influence of individual SNPs or haplotypes for the SDF1, CXCR4, VCAM and VLA4 genes, whether using CD34+ cell counts as a continuous or a categorical variable. Simple clinical characteristics describing donors such as body mass index, age and possibly sex are more potent predictors of stem cell mobilization. The size of our cohort remains relatively small for genetic analyses, however compares favorably with cohorts analyzed in previously published reports suggesting associations of genetic traits to response to rhG-CSF; notwithstanding this limitation, our data do not support the use of genetic analyses when the choice exists of several potential donors for a given patient.
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