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Cardoso BD, Castanheira EMS, Lanceros-Méndez S, Cardoso VF. Recent Advances on Cell Culture Platforms for In Vitro Drug Screening and Cell Therapies: From Conventional to Microfluidic Strategies. Adv Healthc Mater 2023; 12:e2202936. [PMID: 36898671 DOI: 10.1002/adhm.202202936] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/27/2023] [Indexed: 03/12/2023]
Abstract
The clinical translations of drugs and nanomedicines depend on coherent pharmaceutical research based on biologically accurate screening approaches. Since establishing the 2D in vitro cell culture method, the scientific community has improved cell-based drug screening assays and models. Those advances result in more informative biochemical assays and the development of 3D multicellular models to describe the biological complexity better and enhance the simulation of the in vivo microenvironment. Despite the overall dominance of conventional 2D and 3D cell macroscopic culture methods, they present physicochemical and operational challenges that impair the scale-up of drug screening by not allowing a high parallelization, multidrug combination, and high-throughput screening. Their combination and complementarity with microfluidic platforms enable the development of microfluidics-based cell culture platforms with unequivocal advantages in drug screening and cell therapies. Thus, this review presents an updated and consolidated view of cell culture miniaturization's physical, chemical, and operational considerations in the pharmaceutical research scenario. It clarifies advances in the field using gradient-based microfluidics, droplet-based microfluidics, printed-based microfluidics, digital-based microfluidics, SlipChip, and paper-based microfluidics. Finally, it presents a comparative analysis of the performance of cell-based methods in life research and development to achieve increased precision in the drug screening process.
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Affiliation(s)
- Beatriz D Cardoso
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, University of Minho, Braga, 4710-057, Portugal
- LaPMET-Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057, Braga, Portugal
- Center for MicroElectromechanical Systems (CMEMS-UMinho), Campus de Azurém, University of Minho, 4800-058, Guimarães, Portugal
- LABBELS-Associate Laboratory in Biotechnology and Bioengineering and Microelectromechanical Systems, University of Minho, Braga/Guimarães, Portugal
| | - Elisabete M S Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, University of Minho, Braga, 4710-057, Portugal
- LaPMET-Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057, Braga, Portugal
| | - Senentxu Lanceros-Méndez
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, University of Minho, Braga, 4710-057, Portugal
- LaPMET-Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057, Braga, Portugal
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, 48940, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Vanessa F Cardoso
- Center for MicroElectromechanical Systems (CMEMS-UMinho), Campus de Azurém, University of Minho, 4800-058, Guimarães, Portugal
- LABBELS-Associate Laboratory in Biotechnology and Bioengineering and Microelectromechanical Systems, University of Minho, Braga/Guimarães, Portugal
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Yin DM, Yuan D, Sun RJ, Xu HZ, Hun SY, Sui XH, Shan NN. Identification of ORM1, vWF, SPARC, and PPBP as immune-related proteins involved in immune thrombocytopenia by quantitative LC-MS/MS. Clin Proteomics 2023; 20:24. [PMID: 37355563 DOI: 10.1186/s12014-023-09413-0] [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: 11/09/2021] [Accepted: 06/03/2023] [Indexed: 06/26/2023] Open
Abstract
BACKGROUND Immune thrombocytopenia (ITP) is a common autoimmune disease characterized by loss of immune tolerance to platelet autoantigens leading to excessive destruction and insufficient production of platelets. METHOD Quantitative liquid chromatography tandem mass spectrometry (LC-MS/MS) was performed to detect the differentially expressed proteins in bone marrow samples from active ITP patients and normal controls. RESULT Our bioinformatic analysis identified two upregulated proteins (ORM1 and vWF) and two downregulated proteins (PPBP and SPARC) related to immune function. The four proteins were all found to be related to the tumor necrosis factor (TNF) -α signalling pathway and involved in the pathogenesis of ITP in KEGG pathway analysis. CONCLUSION Bioinformatics analysis identified differentially expressed proteins in bone marrow that are involved in the TNF-α signalling pathway and are related to the activation of immune function in ITP patients. These findings could provide new ideas for research on the loss of immune tolerance in ITP patients.
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Affiliation(s)
- Dong-Mei Yin
- Department of Blood Transfusion, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Department of Blood Transfusion, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Dai Yuan
- Department of Hematology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jing Wu Rd, Jinan, 250021, Shandong, China
| | - Rui-Jie Sun
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, 100000, China
| | - Hong-Zhi Xu
- Department of Hematology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jing Wu Rd, Jinan, 250021, Shandong, China
| | - Shou-Yong Hun
- Department of Blood Transfusion, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Department of Blood Transfusion, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Xiao-Hui Sui
- Department of Hematology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jing Wu Rd, Jinan, 250021, Shandong, China
| | - Ning-Ning Shan
- Department of Hematology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China.
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jing Wu Rd, Jinan, 250021, Shandong, China.
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Hua S, Shi F, Xie Z, Wu L, Dai M, Zhang Y, Xu X, Zhu Y, Jiang J. Di-n-butyl phthalate induces oversecretion of vascular endothelium-derived NAP-2 and promotes epithelial-mesenchymal transition of urothelial cells in newborn hypospadias rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114892. [PMID: 37059017 DOI: 10.1016/j.ecoenv.2023.114892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/19/2023] [Accepted: 04/08/2023] [Indexed: 06/19/2023]
Abstract
Di-n-butyl phthalate (DBP) is a plasticizer commonly used in industrial production and is present in our daily life. It has been confirmed that DBP causes genitourinary malformations, especially hypospadias. However, the research of hypospadias mainly focusses on the genital tubercle in previous studies. In this study, we found DBP could affect the exocrine function of the vascular endothelium which disturb the development of genital nodules and induced hypospadias. We used cytokine array to find that vascular endothelium-derived NAP-2 may be a major abnormal secreted cytokine with biological functions. The transcriptomic sequencing analysis showed that abnormal activation of the RhoA/ROCK signaling pathway was the main reason for increased NAP-2 secretion. The expression levels of epithelial-mesenchymal transition (EMT) biomarkers and NAP-2 in hypospadias animal models were detected with Immunohistochemistry, Western blot, Immunofluorescence, and ELISA methods. The expression levels of NAP-2, RhoA/ROCK signaling pathway related proteins, reactive oxygen species (ROS) levels in HUVEC cells, EMT biomarkers and migration capacity of urothelial cells cocultured with HUVEC were measured with ELISA, flow cytometry, Western blot or Transwell assay for further cell experiments. The results showed that DBP leaded to NAP-2 oversecretion from vascular endothelium mainly rely on the activation of RhoA/ROCK signaling pathway and ROS accumulation. The RhoA/ROCK inhibitor fasudil could partially decrease ROS production, and both fasudil and N-acetyl-L-cysteine (NAC) could decrease NAP-2 secretion. Meanwhile, the oversecretion of NAP-2 from HUVEC in coculture system promoted EMT and migration capacity of urothelial cells, and TGF-β inhibitor LY219761 could block the aberrant activation of EMT process. Therefore, it could be concluded that DBP increase NAP-2 secretion from vascular endothelium by RhoA/ROCK/ROS pathway, and further promote EMT in urothelial cells through TGF-β pathway. This study provided a novel direction for studying the occurrence of hypospadias and may provide a hypospadias predictive marker in the future.
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Affiliation(s)
- Shan Hua
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Fei Shi
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Zhiwen Xie
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Lei Wu
- Department of Urology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, China
| | - Mengqiao Dai
- Shanghai University of Traditional Chinese Medicine, School of Nursing, Shanghai 201203, China
| | - Yongqing Zhang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Xinyu Xu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Yiping Zhu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China.
| | - Juntao Jiang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China.
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Saetang J, Tedasen A, Sangkhathat S, Sangkaew N, Dokduang S, Prompat N, Taraporn S, Graidist P. The attenuation effect of low piperine Piper nigrum extract on doxorubicin-induced toxicity of blood chemical and immunological properties in mammary tumour rats. PHARMACEUTICAL BIOLOGY 2022; 60:96-107. [PMID: 34962450 PMCID: PMC8735876 DOI: 10.1080/13880209.2021.2018470] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 10/26/2021] [Accepted: 12/10/2021] [Indexed: 06/01/2023]
Abstract
CONTEXT Many natural extracts have been shown to minimize the toxicity of doxorubicin (Dox). Low piperine Piper nigrum L. (Piperaceae) extract (PFPE) is a natural extract containing many types of antioxidants that may reduce Dox toxicities. OBJECTIVE To evaluate the effect of PFPE in attenuating the side effects of Dox. MATERIALS AND METHODS Tumour-bearing Sprague Dawley rats were divided into five groups including normal, vehicle, 100 mg/kg BW of PFPE plus 2 mg/kg BW of Dox (P100 + Dox), 100 mg/kg BW of PFPE plus 2 mg/kg BW of Dox (P200 + Dox) and Dox. Rats were treated with Dox and/or PFPE three times/week for 4 weeks. Tumour burden, blood parameters, weight of internal organs and immunological data were investigated. RESULTS The addition of 200 mg/kg PFPE significantly restored the levels of AST from 174.60 ± 45.67 U/L in the Dox group near to normal levels at 109.80 ± 4.99 U/L. The combination of PFPE and Dox also decreased the levels of CXCL7, TIMP-1, sICAM-1 and l-selectin about 1.4-1.6-fold compared to Dox group. Feeding rats with 200 mg/kg BW of PFPE combination with Dox slightly increased Th1 from 161.67 ± 14.28 cells in Dox group to 200.75 ± 5.8 cells meanwhile suppressed Treg from 3088 ± 78 cells in Dox to 2561 ± 71 cells. DISCUSSION AND CONCLUSIONS This study showed that PFPE ameliorated Dox toxicity in many aspects indicating the role of antioxidant and other substances in the extract on toxicity attenuation. This suggested the using of PFPE may be valuable for Dox treated patients.
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Affiliation(s)
- Jirakrit Saetang
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
- Department of Surgery, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
- EZ-Mol-Design Laboratory, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Aman Tedasen
- Department of Medical Technology, School of Allied Health Sciences and Public Health, Walailak University, Thai Buri, Thailand
| | - Surasak Sangkhathat
- Department of Surgery, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Natnaree Sangkaew
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Sirinapa Dokduang
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Napat Prompat
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Siriporn Taraporn
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Potchanapond Graidist
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
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Kerstholt M, van de Schoor FR, Oosting M, Moorlag SJCFM, Li Y, Jaeger M, van der Heijden WA, Tunjungputri RN, dos Santos JC, Kischkel B, Vrijmoeth HD, Baarsma ME, Kullberg BJ, Lupse M, Hovius JW, van den Wijngaard CC, Netea MG, de Mast Q, Joosten LAB. Identifying platelet-derived factors as amplifiers of B. burgdorferi-induced cytokine production. Clin Exp Immunol 2022; 210:53-67. [PMID: 36001729 PMCID: PMC9585555 DOI: 10.1093/cei/uxac073] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 07/07/2022] [Accepted: 08/11/2022] [Indexed: 01/25/2023] Open
Abstract
Previous studies have shown that monocytes can be 'trained' or tolerized by certain stimuli to respond stronger or weaker to a secondary stimulation. Rewiring of glucose metabolism was found to be important in inducing this phenotype. As we previously found that Borrelia burgdorferi (B. burgdorferi), the causative agent of Lyme borreliosis (LB), alters glucose metabolism in monocytes, we hypothesized that this may also induce long-term changes in innate immune responses. We found that exposure to B. burgdorferi decreased cytokine production in response to the TLR4-ligand lipopolysaccharide (LPS). In addition, B. burgdorferi exposure decreased baseline levels of glycolysis, as assessed by lactate production. Using GWAS analysis, we identified a gene, microfibril-associated protein 3-like (MFAP3L) as a factor influencing lactate production after B. burgdorferi exposure. Validation experiments proved that MFAP3L affects lactate- and cytokine production following B. burgdorferi stimulation. This is mediated by functions of MFAP3L, which includes activating ERK2 and through activation of platelet degranulation. Moreover, we showed that platelets and platelet-derived factors play important roles in B. burgdorferi-induced cytokine production. Certain platelet-derived factors, such chemokine C-X-C motif ligand 7 (CXCL7) and (C-C motif) ligand 5 (CCL5), were elevated in the circulation of LB patients in comparison to healthy individuals.
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Affiliation(s)
| | | | - Marije Oosting
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Simone J C F M Moorlag
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Yang Li
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands,Department of Computational Biology for Individualised Medicine, Centre for Individualised Infection Medicine (CiiM) and TWINCORE, Joint Ventures Between the Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany
| | - Martin Jaeger
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wouter A van der Heijden
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rahajeng N Tunjungputri
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands,Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia
| | - Jéssica C dos Santos
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Brenda Kischkel
- Department of Internal Medicine and Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Hedwig D Vrijmoeth
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - M E Baarsma
- Amsterdam Institute of Infection and Immunology, Center for Experimental and Molecular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Bart-Jan Kullberg
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mihaela Lupse
- Department of Infectious Diseases, University of Medicine and Pharmacy ‘Iuliu Hatieganu’, Cluj-Napoca, Romania
| | - Joppe W Hovius
- Amsterdam Institute of Infection and Immunology, Center for Experimental and Molecular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Cees C van den Wijngaard
- National Institute for Public Health and the Environment (RIVM), Center of Infectious Disease Control, Bilthoven, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands,Department for Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, Germany
| | - Quirijn de Mast
- Department of Internal Medicine and Radboudumc Center for Infectious diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Leo A B Joosten
- Correspondence: Leo A.B. Joosten, Lab Experimentele geneeskunde, Radboudumc, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands. E-mail:
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Li L, Jiang K, Li D, Li D, Fan Z, Dai G, Tu S, Liu X, Wei G. The Chemokine CXCL7 Is Related to Angiogenesis and Associated With Poor Prognosis in Colorectal Cancer Patients. Front Oncol 2021; 11:754221. [PMID: 34692540 PMCID: PMC8531515 DOI: 10.3389/fonc.2021.754221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/13/2021] [Indexed: 12/23/2022] Open
Abstract
Objective The present study was designed to investigate the role of the chemokine CXCL7 in angiogenesis and explore its prognostic value in colorectal cancer (CRC). Methods A total of 160 CRC patients who had undergone surgery were included in this study, and staged according to the guidelines of the AJCC, 7th Edition. Expression of CXCL7 and VEGF was detected by immunohistochemical (IHC) staining and divided into high and low expression subgroups. The correlation between CXCL7 and VEGF expression was evaluated by Spearman’s rank-correlation coefficient. Prognosis based on CXCL7 and VEGF was evaluated using the Cox proportional hazards regression model and a nomogram of 5-year overall survival (OS) time. Results CXCL7 was highly expressed in tumor tissues (65.63% vs 25.00% in paracancerous tissue, P < 0.001), as was VEGF. CXCL7 and VEGF expression correlated well with N and TNM stage cancers (all P < 0.001). Importantly, CXCL7 was positively correlated with VEGF expression in CRC tissues. CXCL7 was an independent predictor of poor OS of CRC patients (HR = 2.216, 95% CI: 1.069-4.593, P = 0.032), and co-expression of CXCL7 and VEGF of predicted poor OS of 56.96 months. Conclusion Expression of CXCL7 correlated with VEGF and was associated with poor clinical outcomes in CRC patients.
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Affiliation(s)
- Longhai Li
- Department of Science and Education, Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Kai Jiang
- Department of Cardiovascular Medicine, Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Dongpeng Li
- Department of Pathology, Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Dongxiao Li
- Department of Science and Education, Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Zitong Fan
- Department of medicine, Anhui University of Science and Technology, Huainan, China
| | - Guosheng Dai
- Department of Otorhinolaryngology, Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Sheng Tu
- Department of Cardiovascular Medicine, Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Xiangyu Liu
- Department of Science and Education, Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Guangyou Wei
- Department of Science and Education, Bozhou Hospital of Anhui Medical University, Bozhou, China
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A tool for designing tree-like concentration gradient generators for lab-on-a-chip applications. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115339] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Chale RS, Ghiam N, McNamara SA, Jimenez JJ. Transmissible Cancers and Immune Downregulation in Tasmanian Devil ( Sacrophilus harrisii) and Canine Populations. Comp Med 2019; 69:291-298. [PMID: 31387668 DOI: 10.30802/aalas-cm-18-000129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Known as devil facial tumor disease (DFTD) and canine transmissible venereal tumor (CTVT), transmissible cancer occurs in both Tasmanian devil and canine populations, respectively. Both malignancies show remarkable ability to be transmitted as allografts into subsequent hosts. How DFTD and CTVT avoid detection by immunocompetent hosts is of particular interest, given that these malignancies are rarely seen in other species in nature. Both of these transmissible cancers can downregulate the host immune system, enabling proliferation. DFTD is characterized by epigenetic modifications to the DNA promoter regions of β₂microglobulin, transporters associated with antigen processing 1 and 2, MHC I, and MHC II-crucial proteins required in the detection and surveillance of foreign material. Downregulation during DFTD may be achieved by altering the activity of histone deacetylases. DFTD has caused widespread destruction of devil populations, placing the species on the brink of extinction. CTVT demonstrates a proliferative phase, during which the tumor evades immune detection, allowing it to proliferate, and a regressive phase when hosts mount an effective immune response. Alteration of TGFβ signaling in CTVT likely impedes the antigen-processing capabilities of canine hosts in addition to hindering the ability of natural killer cells to detect immune system downregulation. Immunosuppressive cytokines such as CXCL7 may contribute to a favorable microenvironment that supports the proliferation of CTVT. When viewed from an evolutionary paradigm, both DFTD and CTVT may conform to a model of host-parasite coevolution. Furthermore, various genetic features, such as genetically active transposons in CTVT and chromosomal rearrangements in DFTD, play important roles in promoting the survival of these disease agents. Understanding the mode of transmission for these transmissible cancers may shed light on mechanisms for human malignancies and reveal opportunities for treatment in the future.
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Wang X, Liu Z, Pang Y. Concentration gradient generation methods based on microfluidic systems. RSC Adv 2017. [DOI: 10.1039/c7ra04494a] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Various concentration gradient generation methods based on microfluidic systems are summarized in this paper.
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Affiliation(s)
- Xiang Wang
- College of Mechanical Engineering and Applied Electronics Technology
- Beijing University of Technology
- Beijing 100124
- China
| | - Zhaomiao Liu
- College of Mechanical Engineering and Applied Electronics Technology
- Beijing University of Technology
- Beijing 100124
- China
| | - Yan Pang
- College of Mechanical Engineering and Applied Electronics Technology
- Beijing University of Technology
- Beijing 100124
- China
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Murakami K, Maeda S, Yonezawa T, Matsuki N. CC chemokine ligand 2 and CXC chemokine ligand 8 as neutrophil chemoattractant factors in canine idiopathic polyarthritis. Vet Immunol Immunopathol 2016; 182:52-58. [PMID: 27863550 DOI: 10.1016/j.vetimm.2016.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 08/16/2016] [Accepted: 09/23/2016] [Indexed: 02/04/2023]
Abstract
Canine idiopathic polyarthritis (IPA) is characterized by increased numbers of polymorphonuclear leukocytes (PMNs) in the synovial fluid (SF). In humans, CC chemokine ligand 2 (CCL2) and CXC chemokine ligand 8 (CXCL8) recruit monocytes and neutrophils, respectively, and are involved in various inflammatory disorders. The aim of this study was to assess the roles of these chemokines in driving PMNs infiltration into the joints of dogs with IPA. SF samples were collected from dogs with IPA (n=19) and healthy controls (n=8), and the concentrations of SF CCL2 and CXCL8 were determined by ELISA. Dogs with IPA had significantly higher concentrations of CCL2 (3316±2452pg/ml, mean±SD) and CXCL8 (3668±3879pg/ml) compared with the healthy controls (235±45pg/ml and <15.6pg/ml, respectively). Then, an in vitro chemotaxis assay was performed using a modified Boyden chamber (pore size: 3μm). SF from IPA dogs had a chemoattractant activity for PMNs that purified from the peripheral blood of a healthy dog. We subsequently found that combination treatment with MK-0812 (an antagonist of CCL2 receptor) and repertaxin (an antagonist of CXCL8 receptors) significantly inhibited the migration of PMNs to SF from IPA dogs. Thus, expression of the CCL2 receptor (chemokine (CC motif) receptor 2 (CCR2)) was examined using polymerase chain reaction and immunocytochemistry. Canine peripheral blood PMNs exhibited significantly higher CCR2 mRNA expression levels than those in monocytes. In addition, we observed strong CCR2 expression on PMNs obtained from healthy controls and IPA dogs, although mononuclear cells did not express CCR2. Taken together, the data suggest that CCL2 acts as a canine PMNs chemotactic factor as well as CXCL8 and both CCL2 and CXCL8 facilitate the infiltration of PMNs into the joints of dogs with IPA.
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Affiliation(s)
- Kohei Murakami
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Naoaki Matsuki
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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11
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A review of chemical gradient systems for cell analysis. Anal Chim Acta 2016; 907:7-17. [DOI: 10.1016/j.aca.2015.12.008] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 12/01/2015] [Accepted: 12/12/2015] [Indexed: 01/22/2023]
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Somaweera H, Haputhanthri SO, Ibraguimov A, Pappas D. On-chip gradient generation in 256 microfluidic cell cultures: simulation and experimental validation. Analyst 2015; 140:5029-38. [DOI: 10.1039/c5an00481k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A microfluidic diffusion diluter was used to create a stable concentration gradient for dose response studies.
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Affiliation(s)
- Himali Somaweera
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | | | - Akif Ibraguimov
- Department of Mathematics and Statistics
- Texas Tech University
- Lubbock
- USA
| | - Dimitri Pappas
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
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