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Lozano A, Sánchez-Marrugo C, Llinás-Caballero K, Barrios C, Acevedo N, Zakzuk J, Caraballo L. [Cytokine measurement using a multiplex technique with spectral flow cytometry: application in the study of the immunobiology of ascariasis]. Rev Alerg Mex 2024; 71:64-65. [PMID: 38683082 DOI: 10.29262/ram.v71i1.1365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024] Open
Abstract
OBJECTIVE To quantify the production of Th1/Th2/Th17 cytokines induced by Ascaris lumbricoides antigens in peripheral blood mononuclear cells (PBMCs) using a multiplex technique. METHODS PBMCs were cultured from individuals with mild A. lumbricoides infection (n = 20) and uninfected individuals (n = 21) and stimulated with A. lumbricoides extract (ExtAscaris), a mix of anti-CD2/CD3/CD28 (CDmix) as a positive control, and only medium (negative control). Cytokines in the supernatants were measured using the BD™ Cytometric Bead Array Human Th1/Th2/Th17 kit, to identify IFN-γ, TNF, IL-10, IL-6, IL-4, IL-2, and IL-17A. Readings were taken on a spectral cytometer (Northern Lights, Cytek, USA), and analysis was performed using R software with packages "tidyverse," "beadplexr," "flowCore," and "arsenal." Cytokine concentrations were calculated using a 5-parameter logistic curve. The t-test was used to compare cases and controls, and statistical significance was set at p < 0.05. The study was approved by the Ethics Committee of the University of Cartagena and the participants provided informed consent. This study was financially supported by the Colombian Sistema General de Regalías under the BPIN2020000100405 - BPIN2020000100364. RESULTS Efficient fluorescence intensity extraction for each cytokine was achieved using detection channel R8 and the "mclust" clustering model (Figure 1). No significant differences were found in the levels of the seven cytokines between cases and controls (Figure 2). Although the IFN-γ response to ExtAscaris was higher in cases than in controls (252.5 ng/mL vs. 173.1 ng/mL), the difference was not significant. IL-17A (detection limit: 18.9 pg/mL) was more detectable in cases than controls (5 cases, 23% vs. 2 controls, 9.5%). IL-4 was only detected in the supernatants from CDmix-stimulated cultures but not with the Ascaris extract (Figure 2). CONCLUSIONS The multiplex technique using spectral flow cytometry combined with open-source software analysis proved applicable for quantifying cytokines induced by A. lumbricoides antigens in PBMCs. However, a more sensitive method is needed to evaluate IL-4 response in the context of ascariasis. The results did not reveal significant differences in cytokine production between cases and controls for the evaluated stimuli.
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Affiliation(s)
- Ana Lozano
- Estudiante, Doctorado en Ciencias Biomédicas, Instituto de Investigaciones Inmunológicas, Universidad de Cartagena
| | | | | | - Carlos Barrios
- Instituto de Investigaciones Inmunológicas, Universidad de Cartagena
| | - Nathalie Acevedo
- Profesor Auxiliar, Instituto de Investigaciones Inmunológicas, Universidad de Cartagena
| | - Josefina Zakzuk
- Docente asistente, Instituto de Investigaciones Inmunológicas, Universidad de Cartagena.
| | - Luis Caraballo
- Profesor Honorario de Inmunología y Alergología, Director, Instituto de Investigaciones Inmunológicas, Universidad de Cartagena, Cartagena de Indias, Colombia
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He X, Shao G, Du X, Hua R, Song H, Chen Y, Zhu X, Yang G. Molecular characterization and functional implications on mouse peripheral blood mononuclear cells of annexin proteins from Echinococcus granulosus sensu lato. Parasit Vectors 2023; 16:350. [PMID: 37803469 PMCID: PMC10559496 DOI: 10.1186/s13071-023-05967-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 09/09/2023] [Indexed: 10/08/2023] Open
Abstract
BACKGROUND Cystic echinococcosis (CE) is a life-threatening zoonotic disease caused by the larval stage of Echinococcus granulosus sensu lato, which employs various strategies to evade the host immune system for survival. Recent advances have revealed the role of annexins as excretory/secretory products, providing new insights into the immune regulation by these proteins in the pathogenesis of CE. METHODS Echinococcus granulosus annexin B proteins EgANXB2, EgANXB18, EgANXB20, and EgANXB23 were cloned, expressed, and analyzed using bioinformatic tools. Membrane binding analysis was used to assess their bioactivity, while their immunoreactivity and tissue distribution characteristics were determined experimentally using western blotting and immunofluorescence staining, respectively. Furthermore, quantitative real-time reverse transcription PCR (qRT-PCR) was used to analyze the mRNA expression profiles of EgANXBs in different developmental stages of E. granulosus. Finally, immunofluorescence staining, cell counting kit 8 assays, flow cytometry, transwell migration assays, and qRT-PCR were used to evaluate the functional effects of rEgANXB18 and rEgANXB20 on mouse peripheral blood mononuclear cells (PBMCs). RESULTS In this study, we identified four EgANXBs with conserved protein structures and calcium-dependent phospholipid binding activities. rEgANXBs were recognized by serum from sheep infected with E. granulosus and distributed in the germinal layer of fertile cysts. Interestingly, transcription levels of the four EgANXBs were significantly higher in protoscoleces than in 28-day strobilated worms. Moreover, we demonstrated that rEgANXB18 and rEgANXB20 were secretory proteins that could bind to PBMCs and regulate their function. Specifically, rEgANXB18 inhibited cell proliferation and migration while promoting cell apoptosis, NO production, and cytokine profile shifting. In contrast, rEgANXB20 showed limited effects on apoptosis but inhibited NO production. CONCLUSIONS Our findings suggested that among the four identified EgANXBs, EgANXB2 and EgANXB23 might play a pivotal role for the development of protoscoleces, while EgANXB18 and EgANXB20, as secretory proteins, appeared to participate in the host-parasite interaction by regulating the function of immune cells.
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Affiliation(s)
- Xue He
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China
| | - Guoqing Shao
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China
| | - Xiaodi Du
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China
| | - Ruiqi Hua
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China
| | - Hongyu Song
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China
| | - Yanxin Chen
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China
| | - Xiaowei Zhu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China
| | - Guangyou Yang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan Province, People's Republic of China.
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Abstract
Purpose of Review The typical remodeling process after cardiac injury is scarring and compensatory hypertrophy. The limited regeneration potential of the adult heart is thought to be due to the post-mitotic status of postnatal cardiomyocytes, which are mostly binucleated and/or polyploid. Nevertheless, there is evidence for cardiomyocyte turnover in the adult heart. The purpose of this review is to describe the recent findings regarding the proliferative potential of mononuclear cardiomyocytes and to evaluate their function in cardiac turnover and disease. Recent Findings There is overwhelming evidence from carbon-dating in humans and multi-isotope imaging mass spectrometry in mice that there is a very low but detectable level of turnover of cardiomyocytes in the heart. The source of this renewal is not clear, but recent evidence points to a population of mononuclear, diploid cardiomyocytes that are still capable of authentic cell division. Controversy arises when their role in cardiac repair is considered, as some studies claim that they contribute to repair by cell division while other studies do not find evidence for hyperplasia but hypertrophy. Stimulation of the mononuclear cardiomyocyte population has been proposed as a therapeutic strategy in cardiac disease. Summary The studies reviewed here agree on the existence of a low annual cardiomyocyte turnover rate which can be attributed to the proliferation of mononuclear cardiomyocytes. Potential roles of mononucleated cardiomyocytes in cardiac repair after injury are discussed.
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Tao J, Mariani L, Eddy S, Maecker H, Kambham N, Mehta K, Hartman J, Wang W, Kretzler M, Lafayette RA. JAK-STAT Activity in Peripheral Blood Cells and Kidney Tissue in IgA Nephropathy. Clin J Am Soc Nephrol 2020; 15:973-982. [PMID: 32354727 PMCID: PMC7341773 DOI: 10.2215/cjn.11010919] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 04/02/2020] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND OBJECTIVES IgA nephropathy is the most common primary glomerular disease in the world. Marked by mesangial inflammation and proliferation, it generally leads to progressive kidney fibrosis. As the Janus kinase signal transducer and activator of transcription pathway has been implicated as an important mediator of diabetic kidney disease and FSGS, detailed investigation of this pathway in IgA nephropathy was undertaken to establish the basis for targeting this pathway across glomerular diseases. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Well characterized patients with IgA nephropathy and controls were studied, allowing us to compare 77 patients with biopsy-proven IgA nephropathy with 45 healthy subjects. STAT phosphorylation was assessed in peripheral blood monocytes (PBMCs) by phosphoflow before and after cytokine stimulation. Kidney Janus kinase signal transducer and activator of transcription activity was studied by immunofluorescence and by transcriptomic studies. An STAT1 activity score was established using downstream transcriptional targets of pSTAT1 and associated with disease and clinical outcomes. RESULTS We found PBMCs to have upregulated pSTAT production at baseline in patients with IgA nephropathy with a limited reserve to respond to cytokine stimulation compared with controls. Increased staining in glomerular mesangium and endothelium was seen for Jak-2 and pSTAT1 and in the tubulointerstitial for JAK2, pSTAT1, and pSTAT3. Activation of the Janus kinase signal transducer and activator of transcription pathway was further supported by increased pSTAT1 and pSTAT3 scores in glomerular and tubulointerstitial sections of the kidney (glomerular activation Z scores: 7.1 and 4.5, respectively; P values: <0.001 and <0.001, respectively). Clinically, phosphoflow results associated with proteinuria and kidney function, and STAT1 activation associated with proteinuria but was not associated with progression. CONCLUSIONS Janus kinase signal transducer and activator of transcription signaling was activated in patients with IgA nephropathy compared with controls. There were altered responses in peripheral immune cells and increased message and activated proteins in the kidney. These changes variably related to proteinuria and kidney function.
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Affiliation(s)
- Jianling Tao
- Department of Medicine, Stanford University Medical Center, Stanford, California
| | - Laura Mariani
- Department of Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Sean Eddy
- Department of Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Holden Maecker
- Department of Medicine, Stanford University Medical Center, Stanford, California
| | - Neeraja Kambham
- Department of Medicine, Stanford University Medical Center, Stanford, California
| | - Kshama Mehta
- Department of Medicine, Stanford University Medical Center, Stanford, California
| | - John Hartman
- Department of Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Weiqi Wang
- Department of Medicine, Stanford University Medical Center, Stanford, California
| | - Matthias Kretzler
- Department of Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Richard A Lafayette
- Department of Medicine, Stanford University Medical Center, Stanford, California
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Haghighi MF, Seyyedi N, Farhadi A, Zare F, Kasraian L, Refiei Dehbidi GR, Ranjbaran R, Behzad-Behbahani A. Polyomaviruses BK and JC DNA infection in peripheral blood cells from blood donors. Braz J Infect Dis 2019; 23:22-26. [PMID: 30807732 PMCID: PMC9427956 DOI: 10.1016/j.bjid.2019.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 01/12/2019] [Accepted: 01/16/2019] [Indexed: 11/06/2022] Open
Abstract
Objectives To investigate the prevalence of human polyomavirus (BK and JC viruses) infection in peripheral blood mononuclear cells of healthy blood donors. Methods The study included 250 healthy blood donors. Five-milliliter blood was drawn into sterile EDTA tubes and PBMCs were isolated from whole blood. The isolated PBMCs were counted and stored at −70 °C for future investigation. DNA was extracted and subjected to simple, sensitive and specific semi-nested PCR as well as QPCR using both general and specific primers for different assays. Results Of 250 blood samples, 66 (26.4%) were positive for BKV DNA (146–34,514 copies/106 cells). JC DNA was found in 45 (18%) blood samples (65–21,250 copies/106 cells). Co-infection with these viruses were found in 11 (4.4%) out of 250 blood samples. Discussion Our study provides important data on polyomavirus infection in peripheral blood mononuclear leukocytes in immunocompetent individuals. These data indicate significant differences between the prevalence of BKV and JCV infection in healthy blood donors. The prevalence of BK and JC virus infection is higher in the age range 30–39 years compared to other age ranges.
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Affiliation(s)
- Malihe Fathi Haghighi
- Shiraz University of Medical Sciences, School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz, Iran; Shiraz Islamic Azad University, Department of Microbiology, Shiraz, Iran
| | - Noorossadat Seyyedi
- Shiraz University of Medical Sciences, School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz, Iran
| | - Ali Farhadi
- Shiraz University of Medical Sciences, School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz, Iran
| | - Farahnaz Zare
- Shiraz University of Medical Sciences, School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz, Iran
| | - Leila Kasraian
- High Institute for Research and Education in Transfusion Medicine, Blood Transfusion Research Center, Shiraz, Iran
| | - Gholam Reza Refiei Dehbidi
- Shiraz University of Medical Sciences, School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz, Iran
| | - Reza Ranjbaran
- Shiraz University of Medical Sciences, School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz, Iran
| | - Abbas Behzad-Behbahani
- Shiraz University of Medical Sciences, School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz, Iran.
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Yu SL, Deng H, Li XH, Huang YX, Xie DY, Gao ZL. Expression of MicroRNA-155 is Downregulated in Peripheral Blood Mononuclear Cells of Chronic Hepatitis B Patients. Hepat Mon 2016; 16:e34483. [PMID: 27110261 PMCID: PMC4834416 DOI: 10.5812/hepatmon.34483] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/18/2015] [Accepted: 01/01/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Persistent hepatitis B virus (HBV) infection is sustained by inadequate immune responses, either natural or acquired. Recent studies have suggested that immune responses to viral infection may be affected by microRNA (miR)-155, via its involvement in immune cell differentiation and maturation. However, little is known on the specific interaction between miR-155 and HBV in host antiviral immunity. OBJECTIVES This study evaluated the levels of miR-155 in peripheral blood mononuclear cells (PBMCs) of chronic hepatitis B (CHB) patients, relative to that of healthy subjects, and investigated an association between miR-155 levels and HBV DNA or alanine aminotransferase (ALT). PATIENTS AND METHODS Total RNA was extracted from peripheral venous blood samples of 90 treatment-naive patients with chronic HBV infection and 20 healthy volunteers. The levels of miR-155 in the PBMCs were measured by real-time quantitative polymerase chain reaction. Serum HBV DNA and liver enzymes were estimated using standard clinical laboratory methods. RESULTS In the HBV-infected patients, the miR-155 levels were significantly lower than in the healthy controls (P = 0.001). Chronic HBV-infected patients with elevated ALT had higher levels of miR-155 compared with patients with normal ALT (P = 0.014). No correlations were found between miR-155 and ALT or HBV DNA. CONCLUSIONS The miR-155 appeared to be suppressed during HBV infection. The significantly higher miR-155 levels in ALT-elevated patients infected with HBV suggest that miR-155 levels in PBMCs correlate with the immune state of patients with chronic HBV infection.
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Affiliation(s)
- Su-Lin Yu
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hong Deng
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Corresponding Author: Hong Deng, Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, No. 600, Tianhe Road Guangzhou, China. Tel: +86-2085252063, Fax: +86-2085252372, E-mail:
| | - Xin-Hua Li
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ya-Xin Huang
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dong-Ying Xie
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhi-Liang Gao
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Polat O, Polat G, Karahuseyinoglu S, Kutlay NY, Tasci AG, Erdemli E, Tukun A, Avunduk MC, Küplülü S, Demirtas M. Bone Fracture Healing with Umbilico-Placental Mononuclear Cells: A Controlled Animal Study. Eur J Trauma Emerg Surg 2010; 36:60-6. [PMID: 26815570 DOI: 10.1007/s00068-009-9038-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2009] [Accepted: 07/20/2009] [Indexed: 11/27/2022]
Abstract
BACKGROUND Fracture healing is a significant process in orthopedics. In this controlled animal study, our aimis to expose the healing effects of cord blood umbilico-placental mononuclear cells (UPMNCs) on bone fractures. MATERIALS AND METHODS Caesarean sections were performed on five pregnant New Zealand rabbits at term. Placentas and cords were collected. Standard closed transverse shaft fractures were created on both tibial bones of 15 baby rabbits. The right tibias were given UPMNCs; the left tibias were the control group. Histological examinations, osteoblast and osteoclast cell counts, and mechanical stabilities were compared. Anchorage of the donor cells was shown by the fluorescence in situ hybridization (FISH) technique. RESULTS In the group injected with UPMNCs, histopathological fracture healing was faster, osteoblast and osteoclast counts were significantly increased, and the maximum load capacity was higher. The presence of XX and XY chromatins on the same slide revealed the anchorage of female donor cells on male tissues. CONCLUSION The effects of umbilico-placental mononuclear cells on bone healing are histopathological healing priority, increased osteoblastic and osteoclastic activities (bone turnover), and better mechanical stability.
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Affiliation(s)
- Onur Polat
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey. .,Ibni Sina Hospital Emergency, Department Ankara, University Faculty of Medicine Ankara, 06106, Sihhiye, Turkey.
| | - Gurur Polat
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Sercin Karahuseyinoglu
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Nüket Yörür Kutlay
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Arzu Gül Tasci
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Esra Erdemli
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Ajlan Tukun
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Mustafa Cihat Avunduk
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Sükrü Küplülü
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
| | - Mehmet Demirtas
- Ibni Sina Hospital Emergency Department, Ankara University, Faculty of Medicine Ankara, Sihhiye, Turkey
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