1
|
Ya X, Liu C, Ma L, Ge P, Xu X, Zheng Z, Mou S, Wang R, Zhang Q, Ye X, Zhang D, Zhang Y, Wang W, Li H, Zhao J. Single-cell atlas of peripheral blood by CyTOF revealed peripheral blood immune cells metabolic alterations and neutrophil changes in intracranial aneurysm rupture. MedComm (Beijing) 2024; 5:e637. [PMID: 39015556 PMCID: PMC11247334 DOI: 10.1002/mco2.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 05/12/2024] [Accepted: 05/30/2024] [Indexed: 07/18/2024] Open
Abstract
Previous studies have found that the peripheral immune environment is closely related to the occurrence and development of intracranial aneurysms. However, it remains unclear how the metabolism of peripheral blood mononuclear cells (PBMCs) and the composition of polymorphonuclear leukocytes (PMNs) changes in the process of intracranial aneurysm rupture. This study utilized cytometry by time of flight technology to conduct single-cell profiling analysis of PBMCs and PMNs from 72 patients with IAs. By comparing the expression differences of key metabolic enzymes in PBMCs between patients with ruptured intracranial aneurysms (RIAs) and unruptured intracranial aneurysms, we found that most PBMCs subsets from RIA group showed upregulation of rate-limiting enzymes related to the glycolytic pathway. By comparing the composition of PMNs, it was found that the proinflammatory CD101+HLA DR+ subsets were increased in the RIA group, accompanied by a decrease in the anti-inflammatory polymorphonuclear myeloid-derived suppressor cells. In conclusion, this study showed the changes in the peripheral immune profile of RIAs, which is helpful for our understanding of the mechanisms underlying peripheral changes and provides a direction for future related research.
Collapse
Affiliation(s)
- Xiaolong Ya
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Chenglong Liu
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Long Ma
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Peicong Ge
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Xiaoxue Xu
- Department of Core Facility CenterCapital Medical UniversityBeijingChina
| | - Zhiyao Zheng
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of Neurosurgery, Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Siqi Mou
- Medical SchoolUniversity of Chinese Academy of SciencesBeijingChina
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Qian Zhang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Xun Ye
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Department of NeurosurgeryBeijing HospitalBeijingChina
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Wenjing Wang
- Beijing Institute of Hepatology, Beijing YouAn HospitalCapital Medical UniversityBeijingChina
| | - Hao Li
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| |
Collapse
|
2
|
Qi D, Li J, Quarles CC, Fonkem E, Wu E. Assessment and prediction of glioblastoma therapy response: challenges and opportunities. Brain 2023; 146:1281-1298. [PMID: 36445396 PMCID: PMC10319779 DOI: 10.1093/brain/awac450] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/03/2022] [Accepted: 11/10/2022] [Indexed: 11/30/2022] Open
Abstract
Glioblastoma is the most aggressive type of primary adult brain tumour. The median survival of patients with glioblastoma remains approximately 15 months, and the 5-year survival rate is <10%. Current treatment options are limited, and the standard of care has remained relatively constant since 2011. Over the last decade, a range of different treatment regimens have been investigated with very limited success. Tumour recurrence is almost inevitable with the current treatment strategies, as glioblastoma tumours are highly heterogeneous and invasive. Additionally, another challenging issue facing patients with glioblastoma is how to distinguish between tumour progression and treatment effects, especially when relying on routine diagnostic imaging techniques in the clinic. The specificity of routine imaging for identifying tumour progression early or in a timely manner is poor due to the appearance similarity of post-treatment effects. Here, we concisely describe the current status and challenges in the assessment and early prediction of therapy response and the early detection of tumour progression or recurrence. We also summarize and discuss studies of advanced approaches such as quantitative imaging, liquid biomarker discovery and machine intelligence that hold exceptional potential to aid in the therapy monitoring of this malignancy and early prediction of therapy response, which may decisively transform the conventional detection methods in the era of precision medicine.
Collapse
Affiliation(s)
- Dan Qi
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX 76502, USA
| | - Jing Li
- School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - C Chad Quarles
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Ekokobe Fonkem
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX 76502, USA
- Department of Medical Education, School of Medicine, Texas A&M University, Bryan, TX 77807, USA
| | - Erxi Wu
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX 76502, USA
- Department of Medical Education, School of Medicine, Texas A&M University, Bryan, TX 77807, USA
- Department of Pharmaceutical Sciences, Irma Lerma Rangel School of Pharmacy, Texas A&M University, College Station, TX 77843, USA
- Department of Oncology and LIVESTRONG Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
| |
Collapse
|
3
|
Li M, Song J, Yin P, Chen H, Wang Y, Xu C, Jiang F, Wang H, Han B, Du X, Wang W, Li G, Zhong D. Single-cell analysis reveals novel clonally expanded monocytes associated with IL1β-IL1R2 pair in acute inflammatory demyelinating polyneuropathy. Sci Rep 2023; 13:5862. [PMID: 37041166 PMCID: PMC10088807 DOI: 10.1038/s41598-023-32427-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/27/2023] [Indexed: 04/13/2023] Open
Abstract
Guillain-Barré syndrome (GBS) is an autoimmune disorder wherein the composition and gene expression patterns of peripheral blood immune cells change significantly. It is triggered by antigens with similar epitopes to Schwann cells that stimulate a maladaptive immune response against peripheral nerves. However, an atlas for peripheral blood immune cells in patients with GBS has not yet been constructed. This is a monocentric, prospective study. We collected 5 acute inflammatory demyelinating polyneuropathy (AIDP) patients and 3 healthy controls hospitalized in the First Affiliated Hospital of Harbin Medical University from December 2020 to May 2021, 3 AIDP patients were in the peak stage and 2 were in the convalescent stage. We performed single-cell RNA sequencing (scRNA-seq) of peripheral blood mononuclear cells (PBMCs) from these patients. Furthermore, we performed cell clustering, cell annotation, cell-cell communication, differentially expressed genes (DEGs) identification and pseudotime trajectory analysis. Our study identified a novel clonally expanded CD14+ CD163+ monocyte subtype in the peripheral blood of patients with AIDP, and it was enriched in cellular response to IL1 and chemokine signaling pathways. Furthermore, we observed increased IL1β-IL1R2 cell-cell communication between CD14+ and CD16+ monocytes. In short, by analyzing the single-cell landscape of the PBMCs in patients with AIDP we hope to widen our understanding of the composition of peripheral immune cells in patients with GBS and provide a theoretical basis for future studies.
Collapse
Affiliation(s)
- Meng Li
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Jihe Song
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Pengqi Yin
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Hongping Chen
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Yingju Wang
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Chen Xu
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Fangchao Jiang
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Haining Wang
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Baichao Han
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Xinshu Du
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Wei Wang
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Guozhong Li
- Department of Neurology, Heilongjiang Provincial Hospital, Harbin, 150081, Heilongjiang, China.
| | - Di Zhong
- Department of Neurology, First Affiliated Hospital, Harbin Medical University, Harbin, 150081, Heilongjiang, China.
| |
Collapse
|
4
|
Kumar S, Ahmad A, Kushwaha N, Shokeen N, Negi S, Gautam K, Singh A, Tiwari P, Garg R, Agarwal R, Mohan A, Trikha A, Thakar A, Saini V. Selection of Ideal Reference Genes for Gene Expression Analysis in COVID-19 and Mucormycosis. Microbiol Spectr 2022; 10:e0165622. [PMID: 36377893 PMCID: PMC9769637 DOI: 10.1128/spectrum.01656-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
Selection of reference genes during real-time quantitative PCR (qRT-PCR) is critical to determine accurate and reliable mRNA expression. Nonetheless, not a single study has investigated the expression stability of candidate reference genes to determine their suitability as internal controls in SARS-CoV-2 infection or COVID-19-associated mucormycosis (CAM). Using qRT-PCR, we determined expression stability of the nine most commonly used housekeeping genes, namely, TATA-box binding protein (TBP), cyclophilin (CypA), β-2-microglobulin (B2M), 18S rRNA (18S), peroxisome proliferator-activated receptor gamma (PPARG) coactivator 1 alpha (PGC-1α), glucuronidase beta (GUSB), hypoxanthine phosphoribosyltransferase 1 (HPRT-1), β-ACTIN, and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in patients with COVID-19 of various severities (asymptomatic, mild, moderate, and severe) and those with CAM. We used statistical algorithms (delta-CT [threshold cycle], NormFinder, BestKeeper, GeNorm, and RefFinder) to select the most appropriate reference gene and observed that clinical severity profoundly influences expression stability of reference genes. CypA demonstrated the most consistent expression irrespective of disease severity and emerged as the most suitable reference gene in COVID-19 and CAM. Incidentally, GAPDH, the most commonly used reference gene, showed the maximum variations in expression and emerged as the least suitable. Next, we determined expression of nuclear factor erythroid 2-related factor 2 (NRF2), interleukin-6 (IL-6), and IL-15 using CypA and GAPDH as internal controls and show that CypA-normalized expression matches well with the RNA sequencing-based expression of these genes. Further, IL-6 expression correlated well with the plasma levels of IL-6 and C-reactive protein, a marker of inflammation. In conclusion, GAPDH emerged as the least suitable and CypA as the most suitable reference gene in COVID-19 and CAM. The results highlight the expression variability of housekeeping genes due to disease severity and provide a strong rationale for identification of appropriate reference genes in other chronic conditions as well. IMPORTANCE Gene expression studies are critical to develop new diagnostics, therapeutics, and prognostic modalities. However, accurate determination of expression requires data normalization with a reference gene, whose expression does not vary across different disease stages. Misidentification of a reference gene can produce inaccurate results. Unfortunately, despite the global impact of COVID-19 and an urgent unmet need for better treatment, not a single study has investigated the expression stability of housekeeping genes across the disease spectrum to determine their suitability as internal controls. Our study identifies CypA and then TBP as the two most suitable reference genes for COVID-19 and CAM. Further, GAPDH, the most commonly used reference gene in COVID-19 studies, turned out to be the least suitable. This work fills an important gap in the field and promises to facilitate determination of an accurate expression of genes to catalyze development of novel molecular diagnostics and therapeutics for improved patient care.
Collapse
Affiliation(s)
- Sunil Kumar
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Ayaan Ahmad
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Namrata Kushwaha
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Niti Shokeen
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Sheetal Negi
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Kamini Gautam
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Anup Singh
- Department of Otorhinolaryngology-Head & Neck Surgery, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Pavan Tiwari
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Rakesh Garg
- Department of Onco-Anesthesiology, Intensive Care, Pain and Palliative Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Richa Agarwal
- Department of Onco-Anesthesiology, Intensive Care, Pain and Palliative Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Anant Mohan
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Anjan Trikha
- Department of Onco-Anesthesiology, Intensive Care, Pain and Palliative Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Alok Thakar
- Department of Otorhinolaryngology-Head & Neck Surgery, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Vikram Saini
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
- Biosafety Laboratory-3, Centralized Core Research Facility (CCRF), All India Institute of Medical Sciences (AIIMS), New Delhi, India
| |
Collapse
|
5
|
Brown LG, Haack AJ, Kennedy DS, Adams KN, Stolarczuk JE, Takezawa MG, Berthier E, Thongpang S, Lim FY, Chaussabel D, Garand M, Theberge AB. At-home blood collection and stabilization in high temperature climates using homeRNA. Front Digit Health 2022; 4:903153. [PMID: 36033636 PMCID: PMC9405416 DOI: 10.3389/fdgth.2022.903153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Expanding whole blood sample collection for transcriptome analysis beyond traditional phlebotomy clinics will open new frontiers for remote immune research and telemedicine. Determining the stability of RNA in blood samples exposed to high ambient temperatures (>30°C) is necessary for deploying home-sampling in settings with elevated temperatures (e.g., studying physiological response to natural disasters that occur in warm locations or in the summer). Recently, we have developed homeRNA, a technology that allows for self-blood sampling and RNA stabilization remotely. homeRNA consists of a lancet-based blood collection device, the Tasso-SST™ which collects up to 0.5 ml of blood from the upper arm, and a custom-built stabilization transfer tube containing RNAlater™. In this study, we investigated the robustness of our homeRNA kit in high temperature settings via two small pilot studies in Doha, Qatar (no. participants = 8), and the Western and South Central USA during the summer of 2021, which included a heatwave of unusually high temperatures in some locations (no. participants = 11). Samples collected from participants in Doha were subjected to rapid external temperature fluctuations from being moved to and from air-conditioned areas and extreme heat environments (up to 41°C external temperature during brief temperature spikes). In the USA pilot study, regions varied in outdoor temperature highs (between 25°C and 43.4°C). All samples that returned a RNA integrity number (RIN) value from the Doha, Qatar group had a RIN ≥7.0, a typical integrity threshold for downstream transcriptomics analysis. RIN values for the Western and South Central USA samples (n = 12 samples) ranged from 6.9-8.7 with 9 out of 12 samples reporting RINs ≥7.0. Overall, our pilot data suggest that homeRNA can be used in some regions that experience elevated temperatures, opening up new geographical frontiers in disseminated transcriptome analysis for applications critical to telemedicine, global health, and expanded clinical research. Further studies, including our ongoing work in Qatar, USA, and Thailand, will continue to test the robustness of homeRNA.
Collapse
Affiliation(s)
- Lauren G. Brown
- Department of Chemistry, University of Washington, Seattle, WA, United States
| | - Amanda J. Haack
- Department of Chemistry, University of Washington, Seattle, WA, United States
- School of Medicine, University of Washington, Seattle, WA, United States
| | - Dakota S. Kennedy
- Department of Chemistry, University of Washington, Seattle, WA, United States
| | - Karen N. Adams
- Institute of Translational Health Sciences, School of Medicine, University of Washington, Seattle, WA, United States
| | | | - Meg G. Takezawa
- Department of Chemistry, University of Washington, Seattle, WA, United States
| | - Erwin Berthier
- Department of Chemistry, University of Washington, Seattle, WA, United States
| | - Sanitta Thongpang
- Department of Chemistry, University of Washington, Seattle, WA, United States
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakorn Pathom, Thailand
| | - Fang Yun Lim
- Department of Chemistry, University of Washington, Seattle, WA, United States
| | - Damien Chaussabel
- Research Branch, Sidra Medicine, Doha, Qatar
- Computer Sciences Department, The Jackson Laboratory, Farmington, CT, United States
| | - Mathieu Garand
- Research Branch, Sidra Medicine, Doha, Qatar
- Department of Surgery, Washington University School of Medicine, St. Louis, MO, United States
| | - Ashleigh B. Theberge
- Department of Chemistry, University of Washington, Seattle, WA, United States
- Department of Urology, School of Medicine, University of Washington, Seattle, WA, United States
| |
Collapse
|
6
|
Leal-Calvo T, Avanzi C, Mendes MA, Benjak A, Busso P, Pinheiro RO, Sarno EN, Cole ST, Moraes MO. A new paradigm for leprosy diagnosis based on host gene expression. PLoS Pathog 2021; 17:e1009972. [PMID: 34695167 PMCID: PMC8568100 DOI: 10.1371/journal.ppat.1009972] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/04/2021] [Accepted: 09/28/2021] [Indexed: 11/18/2022] Open
Abstract
Transcriptional profiling is a powerful tool to investigate and detect human diseases. In this study, we used bulk RNA-sequencing (RNA-Seq) to compare the transcriptomes in skin lesions of leprosy patients or controls affected by other dermal conditions such as granuloma annulare, a confounder for paucibacillary leprosy. We identified five genes capable of accurately distinguishing multibacillary and paucibacillary leprosy from other skin conditions. Indoleamine 2,3-dioxygenase 1 (IDO1) expression alone was highly discriminatory, followed by TLR10, BLK, CD38, and SLAMF7, whereas the HS3ST2 and CD40LG mRNA separated multi- and paucibacillary leprosy. Finally, from the main differentially expressed genes (DEG) and enriched pathways, we conclude that paucibacillary disease is characterized by epithelioid transformation and granuloma formation, with an exacerbated cellular immune response, while multibacillary leprosy features epithelial-mesenchymal transition with phagocytic and lipid biogenesis patterns in the skin. These findings will help catalyze the development of better diagnostic tools and potential host-based therapeutic interventions. Finally, our data may help elucidate host-pathogen interplay driving disease clinical manifestations.
Collapse
Affiliation(s)
- Thyago Leal-Calvo
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Charlotte Avanzi
- Global Health Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Mayara Abud Mendes
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Andrej Benjak
- Global Health Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Philippe Busso
- Global Health Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Roberta Olmo Pinheiro
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Euzenir Nunes Sarno
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Stewart Thomas Cole
- Global Health Institute, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Institut Pasteur, Paris, France
| | - Milton Ozório Moraes
- Laboratório de Hanseníase, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| |
Collapse
|
7
|
Fang Q, Li T, Chen P, Wu Y, Wang T, Mo L, Ou J, Nandakumar KS. Comparative Analysis on Abnormal Methylome of Differentially Expressed Genes and Disease Pathways in the Immune Cells of RA and SLE. Front Immunol 2021; 12:668007. [PMID: 34079550 PMCID: PMC8165287 DOI: 10.3389/fimmu.2021.668007] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/26/2021] [Indexed: 12/13/2022] Open
Abstract
We identified abnormally methylated, differentially expressed genes (DEGs) and pathogenic mechanisms in different immune cells of RA and SLE by comprehensive bioinformatics analysis. Six microarray data sets of each immune cell (CD19+ B cells, CD4+ T cells and CD14+ monocytes) were integrated to screen DEGs and differentially methylated genes by using R package “limma.” Gene ontology annotations and KEGG analysis of aberrant methylome of DEGs were done using DAVID online database. Protein-protein interaction (PPI) network was generated to detect the hub genes and their methylation levels were compared using DiseaseMeth 2.0 database. Aberrantly methylated DEGs in CD19+ B cells (173 and 180), CD4+ T cells (184 and 417) and CD14+ monocytes (193 and 392) of RA and SLE patients were identified. We detected 30 hub genes in different immune cells of RA and SLE and confirmed their expression using FACS sorted immune cells by qPCR. Among them, 12 genes (BPTF, PHC2, JUN, KRAS, PTEN, FGFR2, ALB, SERB-1, SKP2, TUBA1A, IMP3, and SMAD4) of RA and 12 genes (OAS1, RSAD2, OASL, IFIT3, OAS2, IFIH1, CENPE, TOP2A, PBK, KIF11, IFIT1, and ISG15) of SLE are proposed as potential biomarker genes based on receiver operating curve analysis. Our study suggests that MAPK signaling pathway could potentially differentiate the mechanisms affecting T- and B- cells in RA, whereas PI3K pathway may be used for exploring common disease pathways between RA and SLE. Compared to individual data analyses, more dependable and precise filtering of results can be achieved by integrating several relevant data sets.
Collapse
Affiliation(s)
- Qinghua Fang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Tingyue Li
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus Medical Center, Rotterdam, Netherlands
| | - Peiya Chen
- Department of Science and Education, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yuzhe Wu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Tingting Wang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Lixia Mo
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jiaxin Ou
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | | |
Collapse
|
8
|
Peripheral Blood Cells from Patients with Hodgkin's and Diffuse Large B Cell Lymphomas May Be a Better Source of Candidate Diagnostic miRNAs Than Circulating miRNAs. BIOMED RESEARCH INTERNATIONAL 2021; 2021:3212878. [PMID: 33628777 PMCID: PMC7880712 DOI: 10.1155/2021/3212878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 01/08/2021] [Accepted: 01/21/2021] [Indexed: 11/18/2022]
Abstract
Hodgkin lymphoma (HL) and diffuse large B cell lymphoma (DLBCL) represent 15% and 20%, respectively, of all lymphoma types. The aim of this study was to identify and compare circulating serum miRNA (c-miRNA) and peripheral whole blood miRNA (wb-miRNA) profiles in patients with these lymphomas. Serum samples (20 HL, 21 DLBCL, and 30 healthy controls) and whole blood samples (21 HL, 17 DLBCL patients, and 30 healthy controls) were collected at the time of diagnosis. Serum and whole blood were also collected from 18 HL/17 DLBCL and eight HL/nine DLBCL patients, respectively, after treatment. Pairwise comparisons identified 125 c-miRNAs (adjusted P value < 0.05) showing significant dysregulation between 30 healthy controls and patients; of these, 47 and 55 differentiated controls from pretherapeutic HL and DLBCL patients, respectively. In addition, 60 and 16 c-miRNAs differentiated controls from posttherapeutic HL and DLBCL, respectively. Pairwise comparisons identified 292 wb-miRNAs (adjusted P value < 0.05) showing significant dysregulation between 30 controls and patients; of these, 103 and 169 differentiated controls from pretherapeutic HL and DLBCL, respectively, and 142 and 151 wb-miRNAs differentiated controls from posttherapeutic HL and DLBCL, respectively. Thus, lymphoma-associated miRNAs may be a better source of noninvasive candidate biomarkers than miRNAs in serum. It is unclear whether miRNA alterations in lymphoma cells are similar to those observed in white blood cells.
Collapse
|
9
|
Yan CC, Zhang XS, Zhou L, Yang Q, Zhou M, Zhang LW, Xing JC, Yan ZF, Price M, Li J, Yue BS, Fan ZX. Effects of aging on gene expression in blood of captive Tibetan macaques ( Macaca thibetana) and comparisons with expression in humans. Zool Res 2021; 41:557-563. [PMID: 32746507 PMCID: PMC7475009 DOI: 10.24272/j.issn.2095-8137.2020.092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Changes in gene expression occur as animals, including primates, age. Macaques have long been used as a model species for primate evolution and biomedical studies. Here, to study gene expression in Tibetan macaques (Macaca thibetana, TMs) and its differences to humans, we applied RNA-Seq to obtain the blood transcriptomes of 24 TMs. In total, 2 523 age-associated differentially expressed genes (DEGs) were identified. Several pathways and processes that regulate aging, including the FoxO signaling pathway, autophagy, and platelet activation, were significantly enriched in the up-regulated DEGs. Two significantly age-related modules were identified by weighted gene co-expression network analysis (WGCNA). The TMs and humans shared 279 common DEGs, including 111 up-regulated and 141 down-regulated genes with advancing age in the same expression direction. However, 27 age-related DEGs presented the opposite expression direction in TMs as that in humans. For example, INPPL1, with inhibitory effects on the B cell receptor signaling pathway, was up-regulated in humans but down-regulated in TMs. In general, our study suggests that aging is a critical factor affecting gene expression in the captive TM population. The similarities and differences in gene expression patterns between TMs and humans could provide new insights into primate evolution and benefit TM model development.
Collapse
Affiliation(s)
- Chao-Chao Yan
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xin-Shang Zhang
- Institute of Laboratory Animal Sciences, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610212, China
| | - Liang Zhou
- Institute of Laboratory Animal Sciences, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610212, China
| | - Qiao Yang
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Min Zhou
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Lin-Wan Zhang
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jin-Chuan Xing
- Department of Genetics, Rutgers, State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - Zhi-Feng Yan
- Institute of Laboratory Animal Sciences, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610212, China
| | - Megan Price
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jing Li
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Bi-Song Yue
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhen-Xin Fan
- Key Laboratory of Bioresources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China. E-mail:
| |
Collapse
|
10
|
Abstract
Abstract
Peripheral blood lymphocytes (PBL) are able to synthesize various cytokines that play key roles in the immune response and intercellular signaling. Since alterations in cytokine production and/or activity occur in many pathological processes, the study of cytokine synthetic capacity of PBL is a valuable tool for assessing the immune profile. In this paper, we aimed to investigate the variability of interleukin-2 (IL-2), tumor necrosis factor-alpha (TNF-α) and interferon gamma (IFN-γ) synthetic capacity of CD4+/CD8+ T-cells stimulated ex-vivo in healthy subjects, by means of a commercial intracellular cytokine staining (ICS) protocol. Peripheral blood mononuclear cells were isolated from 16 healthy subjects by Ficoll gradient centrifugation and activated ex-vivo with PMA/Ionomycin/Brefeldin-A for 4 hours. Activated PBL were surface-stained for CD3/CD4/CD8, fixed and permeabilized. ICS was performed using anti-human IL-2/TNF-α/IFN-γ and samples were analyzed on a BD-FACSAria-III flow cytometer. We recorded high post-isolation and post-activation mean viabilities: 82.1% and 82.4% respectively, p=0.84. Both CD4+/CD8+ subpopulations were found to partially produce each of the three cytokines, but in different proportions. On average, a significantly greater percentage of CD4+ cells was shown to produce IL-2 and TNF-α, compared with CD8+ cells (61.5%+/-5.8 vs. 25%+/-5.6 and 26.9%+/-11 vs. 7.5%+/-3.3 respectively, p---lt---0.0001 for both). Contrarily, IFN-γ was produced by a higher proportion of CD8+ cells (8.4%+/-3.9 vs. 6.8%+/-3.2, p=0.01). These results show that the employed ICS protocol elicits a satisfactory and consistent cytokine response from PBL of healthy subjects. The collected data may be used to outline a preliminary reference range for future studies on both healthy/pathological subjects.
Collapse
|
11
|
Massaro JD, Polli CD, Costa E Silva M, Alves CC, Passos GA, Sakamoto-Hojo ET, Rodrigues de Holanda Miranda W, Bispo Cezar NJ, Rassi DM, Crispim F, Dib SA, Foss-Freitas MC, Pinheiro DG, Donadi EA. Post-transcriptional markers associated with clinical complications in Type 1 and Type 2 diabetes mellitus. Mol Cell Endocrinol 2019; 490:1-14. [PMID: 30926524 DOI: 10.1016/j.mce.2019.03.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/08/2019] [Accepted: 03/20/2019] [Indexed: 01/10/2023]
Abstract
The delayed diagnosis and the inadequate treatment of diabetes increase the risk of chronic complications. The study of regulatory molecules such as miRNAs can provide expression profiles of diabetes and diabetes complications. We evaluated the mononuclear cell miRNA profiles of 63 Type 1 and Type 2 diabetes patients presenting or not microvascular complications, and 40 healthy controls, using massive parallel sequencing. Gene targets, enriched pathways, dendograms and miRNA-mRNA networks were performed for the differentially expressed miRNAs. Six more relevant miRNAs were validated by RT-qPCR and data mining analysis. MiRNAs associated with specific complications included: i) neuropathy (miR-873-5p, miR-125a-5p, miR-145-3p and miR-99b-5p); ii) nephropathy (miR-1249-3p, miR-193a-5p, miR-409-5p, miR-1271-5p, miR-501-3p, miR-148b-3p and miR-9-5p); and iii) retinopathy (miR-143-3p, miR-1271-5p, miR-409-5p and miR-199a-5p). These miRNAs mainly targeted gene families and specific genes associated with advanced glycation end products and their receptors. Sets of miRNAs were also defined as potential targets for diabetes/diabetes complication pathogenesis.
Collapse
Affiliation(s)
- Juliana Doblas Massaro
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil.
| | - Claudia Danella Polli
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Matheus Costa E Silva
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Cinthia Caroline Alves
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Geraldo Aleixo Passos
- Department of Morphology, Physiology and Basic Pathology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil; Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, 14040-900, Ribeirão Preto, SP, Brazil
| | - Elza Tiemi Sakamoto-Hojo
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, 14040-900, Ribeirão Preto, SP, Brazil
| | - Wallace Rodrigues de Holanda Miranda
- Division of Endocrinology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Nathalia Joanne Bispo Cezar
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Diane Meyre Rassi
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Felipe Crispim
- Endocrinology and Diabetes Division, Department of Medicine, Federal University of São Paulo, 04039-032, São Paulo, SP, Brazil
| | - Sergio Atala Dib
- Endocrinology and Diabetes Division, Department of Medicine, Federal University of São Paulo, 04039-032, São Paulo, SP, Brazil
| | - Maria Cristina Foss-Freitas
- Division of Endocrinology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Daniel Guariz Pinheiro
- Department of Technology, Faculty of Agriculture and Veterinary Sciences, University of the State of São Paulo, 14884-900, Jaboticabal, SP, Brazil
| | - Eduardo Antônio Donadi
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil.
| |
Collapse
|
12
|
Zhang W, Yi Z, Wei C, Keung KL, Sun Z, Xi C, Woytovich C, Farouk S, Gallon L, Menon MC, Magee C, Najafian N, Samaniego MD, Djamali A, Alexander SI, Rosales IA, Smith RN, O'Connell PJ, Colvin R, Cravedi P, Murphy B. Pretransplant transcriptomic signature in peripheral blood predicts early acute rejection. JCI Insight 2019; 4:127543. [PMID: 31167967 DOI: 10.1172/jci.insight.127543] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 04/23/2019] [Indexed: 12/19/2022] Open
Abstract
Commonly available clinical parameters fail to predict early acute cellular rejection (EAR, occurring within 6 months after transplant), a major risk factor for graft loss after kidney transplantation. We performed whole-blood RNA sequencing at the time of transplant in 235 kidney transplant recipients enrolled in a prospective cohort study (Genomics of Chronic Allograft Rejection [GoCAR]) and evaluated the relationship of pretransplant transcriptomic profiles with EAR. EAR was associated with downregulation of NK and CD8+ T cell gene signatures in pretransplant blood. We identified a 23-gene set that predicted EAR in the discovery (n = 81, and AUC = 0.80) and validation (n = 74, and AUC = 0.74) sets. Exclusion of recipients with 5 or 6 HLA donor mismatches increased the AUC to 0.89. The risk score derived from the gene set was also significantly associated with acute cellular rejection after 6 months, antibody-mediated rejection and/or de novo donor-specific antibodies, and graft loss in a cohort of 154 patients, combining the validation set and additional GoCAR patients with surveillance biopsies between 6 and 24 months (n = 80) posttransplant. This 23-gene set is a potentially important new tool for determination of the recipient's immunological risk before kidney transplantation, and facilitation of an individualized approach to immunosuppressive therapy.
Collapse
Affiliation(s)
- Weijia Zhang
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Zhengzi Yi
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Chengguo Wei
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Karen L Keung
- Department of Medicine, Westmead Clinical School, The University of Sydney, Sydney, Australia
| | - Zeguo Sun
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Caixia Xi
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Christopher Woytovich
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Samira Farouk
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Lorenzo Gallon
- Department of Medicine-Nephrology and Surgery-Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Madhav C Menon
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ciara Magee
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Nader Najafian
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | | | - Arjang Djamali
- Division of Nephrology, Department of Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Stephen I Alexander
- Department of Medicine, Westmead Clinical School, The University of Sydney, Sydney, Australia
| | - Ivy A Rosales
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Rex Neal Smith
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Philip J O'Connell
- Department of Medicine, Westmead Clinical School, The University of Sydney, Sydney, Australia
| | - Robert Colvin
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Paolo Cravedi
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Barbara Murphy
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| |
Collapse
|
13
|
Common functional alterations identified in blood transcriptome of autoimmune cholestatic liver and inflammatory bowel diseases. Sci Rep 2019; 9:7190. [PMID: 31076612 PMCID: PMC6510750 DOI: 10.1038/s41598-019-43699-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 04/29/2019] [Indexed: 02/07/2023] Open
Abstract
Primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), and inflammatory bowel diseases (IBDs), including Crohn’s disease (CD) and ulcerative colitis (UC), are heterogeneous chronic autoimmune diseases that may share underlying pathogenic mechanisms. Herein, we compared simultaneously analyzed blood transcriptomes from patients with PBC, PSC, and IBD. Microarray-based measurements were conducted using RNA isolated from whole blood samples from 90, 45, 95 and 93 patients with PBC, PSC, CD, and UC, respectively, and 47 healthy controls. Expression levels of selected transcripts were analyzed by quantitative reverse-transcribed PCR using an independent cohort of 292, 71 and 727 patients with PBC, PSC, and IBD, respectively. Of 4026, 2650 and 4967 probe sets differentially expressed (adjusted p-value < 0.05) in samples from patients with PBC, PSC, and IBD, respectively, compared with healthy controls, 1946 were common to all three comparisons. Functional analyses indicated that most terms enriched for genes differentially expressed in PBC, PSC, and IBD patients compared with healthy controls were related to mitochondrial function, the vesicle endomembrane system, and GTPase-mediated processes. This study indicates that microarray-based profiling of blood gene expression supports research into the molecular mechanisms underlying disease, rather than being useful for selection of diagnostic biomarkers for use in clinical practice.
Collapse
|
14
|
Póliska S, Besenyei T, Végh E, Hamar A, Pusztai A, Váncsa A, Bodnár N, Szamosi S, Csumita M, Kerekes G, Szabó Z, Nagy Z, Szűcs G, Szántó S, Zahuczky G, Nagy L, Szekanecz Z. Gene expression analysis of vascular pathophysiology related to anti-TNF treatment in rheumatoid arthritis. Arthritis Res Ther 2019; 21:94. [PMID: 30987671 PMCID: PMC6466794 DOI: 10.1186/s13075-019-1862-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 03/08/2019] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVES Impaired vascular pathophysiology and increased cardiovascular (CV) mortality are associated with rheumatoid arthritis (RA). To date, no genomic analysis of RA- and RA treatment-related vascular pathophysiology has been published. In this pilot study, we performed gene expression profiling in association with vascular pathophysiology in RA patients. METHODS Sixteen and 19 biologic-naïve RA patients were included in study 1 and study 2, respectively. In study 1, genetic signatures determined by microarray were related to flow-mediated vasodilation (FMD), pulse-wave velocity (PWV), and common carotid intima-media thickness (IMT) of patients. In study 2, clinical response (cR) vs non-response (cNR) to 1-year etanercept (ETN) or certolizumab pegol (CZP) treatment, as well as "vascular" response (vR) vs non-response (vNR) to biologics, were also associated with genomic profiles. Multiple testing could not be performed due to the relatively small number of patients; therefore, our pilot study may lack power. RESULTS In study 1, multiple genes were up- or downregulated in patients with abnormal vs normal FMD, IMT, and PWV. In study 2, there were 13 cR and 6 cNR anti-tumor necrosis factor (TNF)-treated patients. In addition, 10, 9, and 8 patients were FMD-20%, IMT-20%, and PWV-20% responders. Again, vascular responder status was associated with changes of the expression of various genes. The highest number of genes showing significant enrichment were involved in positive regulation of immune effector process, regulation of glucose transport, and Golgi vesicle budding. CONCLUSION Differential expression of multiple genetic profiles may be associated with vascular pathophysiology associated with RA. Moreover, distinct genetic signatures may also be associated with clinical and vascular responses to 1-year anti-TNF treatment.
Collapse
Affiliation(s)
- Szilárd Póliska
- Department of Biochemistry and Molecular Biology, University of Debrecen Faculty of Medicine, Debrecen, Hungary.,Department of Sports Medicine, University of Debrecen Faculty of Medicine, Debrecen, Hungary
| | - Timea Besenyei
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary.,Department of Internal Medicine, University of Debrecen Faculty of Medicine, Debrecen, Hungary
| | - Edit Végh
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Attila Hamar
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Anita Pusztai
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Andrea Váncsa
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Nóra Bodnár
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Szilvia Szamosi
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Mária Csumita
- Department of Biochemistry and Molecular Biology, University of Debrecen Faculty of Medicine, Debrecen, Hungary.,Department of Sports Medicine, University of Debrecen Faculty of Medicine, Debrecen, Hungary
| | - György Kerekes
- Department of Angiology, University of Debrecen Faculty of Medicine, Debrecen, Hungary
| | - Zoltán Szabó
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Zoltán Nagy
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Gabriella Szűcs
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary
| | - Sándor Szántó
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary.,Department of Sports Medicine, University of Debrecen Faculty of Medicine, Debrecen, Hungary
| | | | - László Nagy
- Department of Biochemistry and Molecular Biology, University of Debrecen Faculty of Medicine, Debrecen, Hungary
| | - Zoltán Szekanecz
- Department of Rheumatology, University of Debrecen Faculty of Medicine, Nagyerdei str 98, Debrecen, 4032, Hungary.
| |
Collapse
|
15
|
Ostrowski J, Dabrowska M, Lazowska I, Paziewska A, Balabas A, Kluska A, Kulecka M, Karczmarski J, Ambrozkiewicz F, Piatkowska M, Goryca K, Zeber-Lubecka N, Kierkus J, Socha P, Lodyga M, Klopocka M, Iwanczak B, Bak-Drabik K, Walkowiak J, Radwan P, Grzybowska-Chlebowczyk U, Korczowski B, Starzynska T, Mikula M. Redefining the Practical Utility of Blood Transcriptome Biomarkers in Inflammatory Bowel Diseases. J Crohns Colitis 2019; 13:626-633. [PMID: 30541017 PMCID: PMC6486489 DOI: 10.1093/ecco-jcc/jjy205] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS The study investigates the practical utility of whole-blood gene expression profiling to diagnose inflammatory bowel diseases [IBDs]. METHODS The discovery cohorts included 102 and 51 paediatric IBD patients and controls, and 95 and 46 adult IBD patients and controls, respectively. The replication cohorts included 447 and 76 paediatric IBD patients and controls, and 271 and 108 adult IBD patients and controls, respectively. In the discovery phase, RNA samples extracted from whole peripheral blood were analysed using RNA-Seq, and the predictive values of selected biomarkers were validated using quantitative polymerase chain reaction [qPCR]. RESULTS In all, 15 differentially expressed transcripts [adjusted p ≤0.05] were selected from the discovery sequencing datasets. The receiver operating characteristic curves and area under the curve [ROC-AUC] in replication analyses showed high discriminative power [AUC range, 0.91-0.98] for 11 mRNAs in paediatric patients with active IBD. By contrast, the AUC-ROC values ranged from 0.63 to 0.75 in comparison among inactive paediatric IBDs and active/inactive adult IBDs, indicating a lack of discriminative power. The best multi-mRNA diagnostic classifier showed moderate discriminative power [AUC = 0.81] for paediatric inactive IBD, but was not able to discriminate active or inactive adult IBD patients from controls. The AUC-ROC values did not confirm an ability of the mRNAs abundances to discriminate between active ulcerative colitis and active Crohn's disease in paediatric or adult populations. CONCLUSIONS This study identifies and validates blood transcriptional biomarkers that could be used in clinical settings as diagnostic predictors of IBD clinical activity in paediatric, but not adult, IBD patients.
Collapse
Affiliation(s)
- Jerzy Ostrowski
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland,Department of Gastroenterology and Hepatology, Medical Center for Postgraduate Education, Warsaw, Poland,Corresponding author: Jerzy Ostrowski, MD, PhD; Cancer Center-Institute, Roentgena 5, 02-781 Warsaw, Poland. Tel.: +48 225462575; e-mail:
| | - Michalina Dabrowska
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| | - Izabella Lazowska
- Department of Pediatric Gastroenterology and Nutrition, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Paziewska
- Department of Gastroenterology and Hepatology, Medical Center for Postgraduate Education, Warsaw, Poland
| | - Aneta Balabas
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| | - Anna Kluska
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| | - Maria Kulecka
- Department of Gastroenterology and Hepatology, Medical Center for Postgraduate Education, Warsaw, Poland
| | - Jakub Karczmarski
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| | - Filip Ambrozkiewicz
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| | - Magdalena Piatkowska
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| | - Krzysztof Goryca
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| | - Natalia Zeber-Lubecka
- Department of Gastroenterology and Hepatology, Medical Center for Postgraduate Education, Warsaw, Poland
| | - Jaroslaw Kierkus
- Department of Gastroenterology, Hepatology and Feeding Disorders, Children’s Memorial Health Institute, Warsaw, Poland
| | - Piotr Socha
- Department of Gastroenterology, Hepatology and Feeding Disorders, Children’s Memorial Health Institute, Warsaw, Poland
| | - Michal Lodyga
- Department of Internal Medicine and Gastroenterology with IBD Subdivision, Central Clinical Hospital of the Ministry of the Interior, Warsaw, Poland
| | - Maria Klopocka
- Vascular Diseases and Internal Medicine, Nicolaus Copernicus University in Torun, Collegium Medicum, Bydgoszcz, Poland
| | - Barbara Iwanczak
- Department of Pediatrics, Gastroenterology and Nutrition, Wroclaw Medical University, Wroclaw, Poland
| | - Katarzyna Bak-Drabik
- Department of Pediatrics, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Jaroslaw Walkowiak
- Department of Pediatric Gastroenterology & Metabolic Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Piotr Radwan
- Department of Gastroenterology, Medical University of Lublin, Lublin, Poland
| | | | | | - Teresa Starzynska
- Department of Gastroenterology, Pomeranian Medical University, Szczecin, Poland
| | - Michal Mikula
- Department of Genetics, Maria Sklodowska-Curie Institute – Oncology Centre, Warsaw, Poland
| |
Collapse
|
16
|
Optimization of a Density Gradient Centrifugation Protocol for Isolation of Peripheral Blood Mononuclear Cells. ACTA MEDICA MARISIENSIS 2018. [DOI: 10.2478/amma-2018-0011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Abstract
Objective: Peripheral blood mononuclear cells (PBMC) are extremely important in the body’s immune response. Their isolation represents a major step in many immunological experiments. In this two phase study, we aimed to establish an optimum protocol for PBMC isolation by density-gradient centrifugation.
Methods: During Phase-1, we compared two commercially available PBMC isolation protocols, Stemcell Technologies (ST) and Miltenyi Biotec (MB), in terms of PBMC recovery and purity. Twelve blood samples were assigned to each protocol. Each sample was divided in three subsamples of 1ml, 2ml and 3ml in order to assess the influence of blood sample volume on isolation performance. During Phase-2, a hybrid protocol was similarly tested, processing six blood samples. Additionally, we performed a flow cytometric analysis using an Annexin-V/Propidium-Iodide viability staining protocol.
Results: Phase-1 results showed that, for all subsample volumes, ST had superior PBMC recovery (mean values: 56%, 80% and 87%, respectively) compared to MB (mean values: 39%, 54% and 43%, respectively). However, platelet removal was significantly higher for MB (mean value of 96.8%) than for ST (mean value of 75.2%). Regarding granulocyte/erythrocyte contamination, both protocols performed similarly, yielding high purity PBMC (mean values: 97.3% for ST and 95.8% for MB). During Phase-2, our hybrid protocol yielded comparable results to MB, with an average viability of 89.4% for lymphocytes and 16.9% for monocytes.
Conclusions: ST yields higher cell recovery rates and MB excels at platelet removal, while the hybrid protocol is highly similar to MB. Both cell recovery and viability increase with blood sample volume.
Collapse
|
17
|
Reynés B, Priego T, Cifre M, Oliver P, Palou A. Peripheral Blood Cells, a Transcriptomic Tool in Nutrigenomic and Obesity Studies: Current State of the Art. Compr Rev Food Sci Food Saf 2018; 17:1006-1020. [DOI: 10.1111/1541-4337.12363] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/13/2018] [Accepted: 04/14/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Bàrbara Reynés
- Laboratory of Molecular Biology, Nutrition and Biotechnology; Univ. de les Illes Balears; Palma Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Madrid Spain
- Inst. d'Investigació Sanitària Illes Balears (IdISBa); Palma Spain
| | - Teresa Priego
- Dept. of Physiology, Faculty of Medicine; Univ. Complutense de Madrid; Madrid Spain
| | - Margalida Cifre
- Laboratory of Molecular Biology, Nutrition and Biotechnology; Univ. de les Illes Balears; Palma Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Madrid Spain
| | - Paula Oliver
- Laboratory of Molecular Biology, Nutrition and Biotechnology; Univ. de les Illes Balears; Palma Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Madrid Spain
- Inst. d'Investigació Sanitària Illes Balears (IdISBa); Palma Spain
| | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology; Univ. de les Illes Balears; Palma Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN); Madrid Spain
- Inst. d'Investigació Sanitària Illes Balears (IdISBa); Palma Spain
| |
Collapse
|
18
|
Ruhanya V, Jacobs GB, Glashoff RH, Engelbrecht S. Clinical Relevance of Total HIV DNA in Peripheral Blood Mononuclear Cell Compartments as a Biomarker of HIV-Associated Neurocognitive Disorders (HAND). Viruses 2017; 9:E324. [PMID: 29088095 PMCID: PMC5707531 DOI: 10.3390/v9110324] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/24/2017] [Accepted: 10/26/2017] [Indexed: 12/19/2022] Open
Abstract
The pathogenesis of HIV-associated neurocognitive disorders is complex and multifactorial. It is hypothesized that the critical events initiating this condition occur outside the brain, particularly in the peripheral blood. Diagnoses of HIV-induced neurocognitive disorders largely rely on neuropsychometric assessments, which are not precise. Total HIV DNA in the peripheral blood mononuclear cells (PBMCs), quantified by PCR, correlate with disease progression, which is a promising biomarker to predict HAND. Numerous PCR assays for HIV DNA in cell compartments are prone to variation due to the lack of standardization and, therefore, their utility in predicting HAND produced different outcomes. This review evaluates the clinical relevance of total HIV DNA in circulating mononuclear cells using different published quantitative PCR (qPCR) protocols. The rationale is to shed light on the most appropriate assays and sample types used to accurately quantify HIV DNA load, which predicts severity of neurocognitive impairment. The role of monocytes as a vehicle for trafficking HIV into the CNS makes it the most suitable sample for determining a HAND associated reservoir. Studies have also shown significant associations between monocyte HIV DNA levels with markers of neurodamage. However, qPCR assays using PBMCs are cheaper and available commercially, thus could be beneficial in clinical settings. There is need, however, to standardise DNA extraction, normalisation and limit of detection.
Collapse
Affiliation(s)
- Vurayai Ruhanya
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Avenue, P.O. Box 241, Cape Town 8000, South Africa.
- Department of Medical Microbiology, College of Health Sciences, University of Zimbabwe, P.O. Box A178, Avondale Harare 00263, Zimbabwe.
| | - Graeme B Jacobs
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Avenue, P.O. Box 241, Cape Town 8000, South Africa.
| | - Richard H Glashoff
- Division of Medical Microbiology and Immunology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Avenue, P.O. Box 241, Cape Town 8000, South Africa.
- Division of Medical Microbiology and Immunology, National Health Laboratory Service (NHLS), Tygerberg Business Unit, P.O. Box 241, Cape Town 8000, South Africa.
| | - Susan Engelbrecht
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Francie van Zijl Avenue, P.O. Box 241, Cape Town 8000, South Africa.
- Division of Medical Virology, National Health Laboratory Service (NHLS), Tygerberg Business Unit, P.O. Box 241, Cape Town 8000, South Africa.
| |
Collapse
|
19
|
Yu G, Li Y, Ye L, Wang X, Zhang J, Dong Z, Jiang D. Exogenous peripheral blood mononuclear cells affect the healing process of deep‑degree burns. Mol Med Rep 2017; 16:8110-8122. [PMID: 28990101 PMCID: PMC5779898 DOI: 10.3892/mmr.2017.7672] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 07/20/2017] [Indexed: 12/24/2022] Open
Abstract
The regenerative repair of deep-degree (second degree) burned skin remains a notable challenge in the treatment of burn injury, despite improvements being made with regards to treatment modality and the emergence of novel therapies. Fetal skin constitutes an attractive target for investigating scarless healing of burned skin. To investigate the inflammatory response during scarless healing of burned fetal skin, the present study developed a nude mouse model, which was implanted with normal human fetal skin and burned fetal skin. Subsequently, human peripheral blood mononuclear cells (PBMCs) were used to treat the nude mouse model carrying the burned fetal skin. The expression levels of matrix metalloproteinase (MMP)-9 and tissue inhibitor of metalloproteinases (TIMP)-1 were investigated during this process. In the present study, fetal skin was subcutaneously implanted into the nude mice to establish the murine model. Hematoxylin and eosin staining was used to detect alterations in the skin during the development of fetal skin and during the healing process of deep-degree burned fetal skin. The expression levels of MMP-9 and TIMP-1 were determined using immunochemical staining, and their staining intensity was evaluated by mean optical density. The results demonstrated that fetal skin subcutaneously implanted into the dorsal skin flap of nude mice developed similarly to the normal growth process in the womb. In addition, the scarless healing process was clearly observed in the mice carrying the burned fetal skin. A total of 2 weeks was required to complete scarless healing. Following treatment with PBMCs, the burned fetal skin generated inflammatory factors and enhanced the inflammatory response, which consequently resulted in a reduction in the speed of healing and in the formation of scars. Therefore, exogenous PBMCs may alter the lowered immune response environment, which is required for scarless healing, resulting in scar formation. In conclusion, the present study indicated that the involvement of inflammatory cells is important during the healing process of deep-degree burned skin, and MMP-9 and TIMP-1 may serve important roles in the process of scar formation.
Collapse
Affiliation(s)
- Guanying Yu
- Department of Burns and Plastic Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Yaonan Li
- Department of Emergency, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Lan Ye
- Cancer Center, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Xinglei Wang
- Department of Emergency, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Jixun Zhang
- Department of Burns and Plastic Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Zhengxue Dong
- Department of Burns and Plastic Surgery, The Chinese People's Liberation Army 148 Hospital, Zibo, Shandong 255300, P.R. China
| | - Duyin Jiang
- Department of Burns and Plastic Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| |
Collapse
|
20
|
Villani AC, Satija R, Reynolds G, Sarkizova S, Shekhar K, Fletcher J, Griesbeck M, Butler A, Zheng S, Lazo S, Jardine L, Dixon D, Stephenson E, Nilsson E, Grundberg I, McDonald D, Filby A, Li W, De Jager PL, Rozenblatt-Rosen O, Lane AA, Haniffa M, Regev A, Hacohen N. Single-cell RNA-seq reveals new types of human blood dendritic cells, monocytes, and progenitors. Science 2017; 356:eaah4573. [PMID: 28428369 PMCID: PMC5775029 DOI: 10.1126/science.aah4573] [Citation(s) in RCA: 1531] [Impact Index Per Article: 218.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 03/07/2017] [Indexed: 12/16/2022]
Abstract
Dendritic cells (DCs) and monocytes play a central role in pathogen sensing, phagocytosis, and antigen presentation and consist of multiple specialized subtypes. However, their identities and interrelationships are not fully understood. Using unbiased single-cell RNA sequencing (RNA-seq) of ~2400 cells, we identified six human DCs and four monocyte subtypes in human blood. Our study reveals a new DC subset that shares properties with plasmacytoid DCs (pDCs) but potently activates T cells, thus redefining pDCs; a new subdivision within the CD1C+ subset of DCs; the relationship between blastic plasmacytoid DC neoplasia cells and healthy DCs; and circulating progenitor of conventional DCs (cDCs). Our revised taxonomy will enable more accurate functional and developmental analyses as well as immune monitoring in health and disease.
Collapse
Affiliation(s)
- Alexandra-Chloé Villani
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Center for Cancer Research, Massachusetts General Hospital, Department of Medicine, Boston, MA, USA
| | - Rahul Satija
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- New York Genome Center, New York University Center for Genomics and Systems Biology, New York, NY, USA
- New York University Center for Genomics and Systems Biology, New York, NY, USA
| | - Gary Reynolds
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | | | | | - James Fletcher
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Morgane Griesbeck
- Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard University, Cambridge, MA, USA
| | - Andrew Butler
- New York Genome Center, New York University Center for Genomics and Systems Biology, New York, NY, USA
- New York University Center for Genomics and Systems Biology, New York, NY, USA
| | - Shiwei Zheng
- New York Genome Center, New York University Center for Genomics and Systems Biology, New York, NY, USA
- New York University Center for Genomics and Systems Biology, New York, NY, USA
| | - Suzan Lazo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Laura Jardine
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - David Dixon
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Emily Stephenson
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | | | | | - David McDonald
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Andrew Filby
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Weibo Li
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Department of Medicine, Boston, MA, USA
| | - Philip L De Jager
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Translational NeuroPsychiatric Genomics, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School
| | | | - Andrew A Lane
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Muzlifah Haniffa
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
- Department of Dermatology, Royal Victoria Infirmary, Newcastle Hospitals NHS Foundation Trust, UK
| | - Aviv Regev
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Department of Biology and Koch Institute, Massachusetts Institute of Technology, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Nir Hacohen
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Center for Cancer Research, Massachusetts General Hospital, Department of Medicine, Boston, MA, USA
| |
Collapse
|
21
|
Chomczynski P, Wilfinger WW, Eghbalnia HR, Kennedy A, Rymaszewski M, Mackey K. Inter-Individual Differences in RNA Levels in Human Peripheral Blood. PLoS One 2016; 11:e0148260. [PMID: 26863434 PMCID: PMC4749217 DOI: 10.1371/journal.pone.0148260] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 01/16/2016] [Indexed: 11/18/2022] Open
Abstract
Relatively little is known about the range of RNA levels in human blood. This report provides assessment of peripheral blood RNA level and its inter-individual differences in a group of 35 healthy humans consisting of 25 females and 10 males ranging in age from 50 to 89 years. In this group, the average total RNA level was 14.59 μg/ml of blood, with no statistically significant difference between females and males. The individual RNA level ranged from 6.7 to 22.7 μg/ml of blood. In healthy subjects, the repeated sampling of an individual’s blood showed that RNA level, whether high or low, was stable. The inter-individual differences in RNA level in blood can be attributed to both, differences in cell number and the amount of RNA per cell. The 3.4-fold range of inter-individual differences in total RNA levels, documented herein, should be taken into account when evaluating the results of quantitative RT-PCR and/or RNA sequencing studies of human blood. Based on the presented results, a comprehensive assessment of gene expression in blood should involve determination of both the amount of mRNA per unit of total RNA (U / ng RNA) and the amount of mRNA per unit of blood (U / ml blood) to assure a thorough interpretation of physiological or pathological relevance of study results.
Collapse
Affiliation(s)
- Piotr Chomczynski
- Molecular Research Center, Inc. Cincinnati, OH, United States of America
- * E-mail:
| | | | - Hamid R. Eghbalnia
- University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
| | - Amy Kennedy
- Molecular Research Center, Inc. Cincinnati, OH, United States of America
| | - Michal Rymaszewski
- Molecular Research Center, Inc. Cincinnati, OH, United States of America
| | - Karol Mackey
- Molecular Research Center, Inc. Cincinnati, OH, United States of America
| |
Collapse
|
22
|
Hori H, Sasayama D, Teraishi T, Yamamoto N, Nakamura S, Ota M, Hattori K, Kim Y, Higuchi T, Kunugi H. Blood-based gene expression signatures of medication-free outpatients with major depressive disorder: integrative genome-wide and candidate gene analyses. Sci Rep 2016; 6:18776. [PMID: 26728011 PMCID: PMC4700430 DOI: 10.1038/srep18776] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/26/2015] [Indexed: 02/08/2023] Open
Abstract
Several microarray-based studies have investigated gene expression profiles in major depressive disorder (MDD), yet with highly variable findings. We examined blood-based genome-wide expression signatures of MDD, focusing on molecular pathways and networks underlying differentially expressed genes (DEGs) and behaviours of hypothesis-driven, evidence-based candidate genes for depression. Agilent human whole-genome arrays were used to measure gene expression in 14 medication-free outpatients with MDD who were at least moderately ill and 14 healthy controls matched pairwise for age and sex. After filtering, we compared expression of entire probes between patients and controls and identified DEGs. The DEGs were evaluated by pathway and network analyses. For the candidate gene analysis, we utilized 169 previously prioritized genes and examined their case-control separation efficiency and correlational co-expression network in patients relative to controls. The 317 screened DEGs mapped to a significantly over-represented pathway, the "synaptic transmission" pathway. The protein-protein interaction network was also significantly enriched, in which a number of key molecules for depression were included. The co-expression network of candidate genes was markedly disrupted in patients. This study provided evidence for an altered molecular network along with several key molecules in MDD and confirmed that the candidate genes are worthwhile targets for depression research.
Collapse
Affiliation(s)
- Hiroaki Hori
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
- Department of Adult Mental Health, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, 187-8553, Japan
| | - Daimei Sasayama
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | - Toshiya Teraishi
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | - Noriko Yamamoto
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | | | - Miho Ota
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | - Kotaro Hattori
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | - Yoshiharu Kim
- Department of Adult Mental Health, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, 187-8553, Japan
| | - Teruhiko Higuchi
- National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | - Hiroshi Kunugi
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| |
Collapse
|
23
|
Chaussabel D. Assessment of immune status using blood transcriptomics and potential implications for global health. Semin Immunol 2015; 27:58-66. [PMID: 25823891 DOI: 10.1016/j.smim.2015.03.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/02/2015] [Accepted: 03/03/2015] [Indexed: 12/17/2022]
Abstract
The immune system plays a key role in health maintenance and pathogenesis of a wide range of diseases. Leukocytes that are present in the blood convey valuable information about the status of the immune system. Blood transcriptomics, which consists in profiling blood transcript abundance on genome-wide scales, has gained in popularity over the past several years. Indeed, practicality and simplicity largely makes up for what this approach may lack in terms of cell population-level resolution. An extensive survey of the literature reveals increasingly widespread use across virtually all fields of medicine as well as across a number of different animal species, including model organisms but also animals of economical importance. Dissemination across such a wide range of disciplines holds the promise of adding a new perspective, breadth or context, to the considerable depth afforded by whole genome profiling of blood transcript abundance. Indeed, it is only through such contextualization that a truly global perspective will be gained from the use of systems approaches. Also discussed are opportunities that may arise for the fields of immunology and medicine from using blood transcriptomics as a common denominator for developing interactions and cooperation across fields of research that have traditionally been and largely remain compartmentalized. Finally, an argument is made for building immunology research capacity using blood transcriptomics platforms in low-resource and high-disease burden settings.
Collapse
|
24
|
Determination of variation parameters as a crucial step in designing TMT-based clinical proteomics experiments. PLoS One 2015; 10:e0120115. [PMID: 25775046 PMCID: PMC4361338 DOI: 10.1371/journal.pone.0120115] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 02/04/2015] [Indexed: 02/06/2023] Open
Abstract
In quantitative shotgun proteomic analyses by liquid chromatography and mass spectrometry, a rigid study design is necessary in order to obtain statistically relevant results. Hypothesis testing, sample size calculation and power estimation are fundamental concepts that require consideration upon designing an experiment. For this reason, the reproducibility and variability of the proteomic platform needs to be assessed. In this study, we evaluate the technical (sample preparation), labeling (isobaric labels), and total (biological + technical + labeling + experimental) variability and reproducibility of a workflow that employs a shotgun LC-MS/MS approach in combination with TMT peptide labeling for the quantification of peripheral blood mononuclear cell (PBMC) proteome. We illustrate that the variability induced by TMT labeling is small when compared to the technical variation. The latter is also responsible for a substantial part of the total variation. Prior knowledge about the experimental variability allows for a correct design, a prerequisite for the detection of biologically significant disease-specific differential proteins in clinical proteomics experiments.
Collapse
|
25
|
Rocchetti MT, Alfarano M, Varraso L, Di Paolo S, Papale M, Ranieri E, Grandaliano G, Gesualdo L. Two dimensional gel phosphoproteome of peripheral blood mononuclear cells: comparison between two enrichment methods. Proteome Sci 2014; 12:46. [PMID: 25276096 PMCID: PMC4177430 DOI: 10.1186/s12953-014-0046-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/14/2014] [Indexed: 01/18/2023] Open
Abstract
Background Protein phosphorylation is considered a key event in signal transduction. Peripheral blood mononuclear cells (PBMCs) are a critical component of the immune system. The analysis of PBMCs phosphoproteome might help elucidate the signaling pathways essential to their biological role in health, immunological diseases and cancer. Enrichment of phosphoproteins becomes a prerequisite for phosphoproteome analysis and conventionally requires a multi-step procedure and sophisticated equipments. In this study, we standardized 2D-PAGE phosphoproteome analysis of PBMCs and compared two phosphoprotein enrichment methods, lanthanum chloride precipitation and affinity micro-column. Further, the different specificity for PBMCs phosphorylated proteins of each method was investigated. Results PBMCs were isolated from fresh whole blood of ten healthy donors. PBMCs phosphoproteins were enriched either by phosphoprotein precipitation using lanthanum chloride, with an overall yield of 8.9 ± 4.7%, or by using an affinity micro-column, with a lower yield of 3.2 ± 1.6% (p = 0.05). Image analysis of Sypro-stained analytical 2D-PAGE gels detected 554 ± 68 protein spots for the lanthanum pattern [inter-assay coefficient of variation (CV) = 27.0%, intra-assay CV = 10.7%] and 575 ± 35 protein spots for the micro-column pattern (inter-assay CV = 26.8%; intra-assay CV = 11.0%) (p = 0.6), with 57% match of the spots detected by the 2 approaches. 1D gel electrophoresis and western blot analyses of the supernatants suggested a better lanthanum ions capability to deplete phosphoproteins in a PBMCs protein lysate compared to the affinity micro-column. On the other hand, 1D gel electrophoresis analysis of dephosphorylated PBMCs protein lysate revealed a relatively higher unspecificity for the lanthanum ions compared to affinity micro-column. Filamin-A, coronin 1A, pyruvate kinase isozymes M1/M2 and ficolin-1 were considerably more expressed in the lanthanum phosphoprotein pattern. Interestingly, ficolin-1 had not been reported in 2DE-PBMCs proteome profiles so far. Conclusion Our results describe the differences and the validity of phosphoprotein enrichment methods and provide two successful and complementary approaches for the 2DE phosphoproteome analysis of PBMCs. Electronic supplementary material The online version of this article (doi:10.1186/s12953-014-0046-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Maria Teresa Rocchetti
- Department of Emergency and Organ Transplantation (DETO), Nephrology, Dialysis and Transplantation Unit, University of Bari Aldo Moro, Piazza G. Cesare, 11, Bari, 70124 Italy ; Department of Medical and Surgical Sciences, Proteomics and Mass Spectrometry Core Facility, University of Foggia, Foggia, Italy
| | - Michela Alfarano
- Department of Medical and Surgical Sciences, Proteomics and Mass Spectrometry Core Facility, University of Foggia, Foggia, Italy
| | - Leonarda Varraso
- Department of Medical and Surgical Sciences, Nephrology, Dialysis and Transplantation Unit, University of Foggia, Foggia, Italy
| | | | - Massimo Papale
- Department of Medical and Surgical Sciences, Proteomics and Mass Spectrometry Core Facility, University of Foggia, Foggia, Italy ; Clinical Pathology Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Elena Ranieri
- Department of Medical and Surgical Sciences, Proteomics and Mass Spectrometry Core Facility, University of Foggia, Foggia, Italy ; Clinical Pathology Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Giuseppe Grandaliano
- Department of Medical and Surgical Sciences, Nephrology, Dialysis and Transplantation Unit, University of Foggia, Foggia, Italy
| | - Loreto Gesualdo
- Department of Emergency and Organ Transplantation (DETO), Nephrology, Dialysis and Transplantation Unit, University of Bari Aldo Moro, Piazza G. Cesare, 11, Bari, 70124 Italy
| |
Collapse
|
26
|
Two-dimensional gel electrophoresis approach for CTL phosphoproteome analysis. Methods Mol Biol 2014; 1186:243-51. [PMID: 25149311 DOI: 10.1007/978-1-4939-1158-5_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Phosphorylation of proteins plays a pivotal role in signal transduction processes, and it is a key regulator of many biological cell functions. Various strategies have been proposed for the study of phosphoproteome; most of them require a multi-step analysis and sophisticated equipment. Here we describe the two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) analysis of PBMC phosphoproteome using as preliminary enrichment step a simple phosphoprotein isolation by lanthanum chloride. This strategy can be most certainly applied to study the phosphoproteome of CTLs isolated from PBMCs. The phosphoproteome analysis of PBMCs, as well as of CTLs, may help to reveal the signaling pathways essential to their biological role in health and disease.
Collapse
|
27
|
Abstract
Pharmacogenetics and pharmacogenomics deal with possible associations of a single genetic polymorphism or those of multiple gene profiles with responses to drugs. In rheumatology, genes and gene signatures may be associated with altered efficacy and/or safety of anti-inflammatory drugs, disease-modifying antirheumatic drugs (DMARDs) and biologics. In brief, genes of cytochrome P450, other enzymes involved in drug metabolism, transporters and some cytokines have been associated with responses to and toxicity of non-steroidal anti-inflammatory drugs, corticosteroids and DMARDs. The efficacy of biologics may be related to alterations in cytokine, chemokine and FcγR genes. Numerous studies reported multiple genetic signatures in association with responses to biologics; however, data are inconclusive. More, focused studies carried out in larger patient cohorts, using pre-selected genes, may be needed in order to determine the future of pharmacogenetics and pharmacogenomics as tools for personalized medicine in rheumatology.
Collapse
|
28
|
Palau N, Julià A, Ferrándiz C, Puig L, Fonseca E, Fernández E, López-Lasanta M, Tortosa R, Marsal S. Genome-wide transcriptional analysis of T cell activation reveals differential gene expression associated with psoriasis. BMC Genomics 2013; 14:825. [PMID: 24267790 PMCID: PMC4046651 DOI: 10.1186/1471-2164-14-825] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 11/19/2013] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Psoriasis is a chronic autoimmune disease in which T cells have a predominant role in initiating and perpetuating the chronic inflammation in skin. However, the mechanisms that regulate T cell activation in psoriasis are still incompletely understood. The objective of the present study was to characterize the main genetic pathways associated with T cell activation in psoriasis. RESULTS Gene expression profiles from in vitro activated T cells were obtained from 17 psoriasis patients and 7 healthy controls using Illumina HT-12 v4 microarrays. From a total of 47,321 analyzed transcripts, 42 genes were found to be differentially expressed between psoriasis and controls (FDR p-value < 0.1, absolute fold-change > 1.2). Using an independent cohort of 8 patients and 8 healthy controls we validated the overexpression of SPATS2L (p-value =0.0009) and KLF6 (p-value =0.0012) genes in activated T cells from psoriasis patients. Using weighted correlation analysis we identified SPATS2L and KLF6 coexpression networks, which were also significantly associated with psoriasis (p-value < 0.05). Gene Ontology analysis allowed the identification of several biological processes associated with each coexpression network. Finally, using Gene Set Enrichment Analysis over the global T cell transcriptome we also found additional genetic pathways strongly associated with psoriasis (p-value < 0.0001). CONCLUSIONS This study has identified two new genes, SPATS2L and KLF6, strongly associated with T cell activation in psoriasis. Functional analyses of the gene expression profiles also revealed new biological processes and genetic pathways associated with psoriasis. The results of this study provide an important insight into the biology of this common chronic inflammatory disease.
Collapse
Affiliation(s)
- Nuria Palau
- Rheumatology Research Group, Vall d'Hebron Research Institute, Barcelona 08035, Spain.
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Black KM, Masuzawa A, Hagberg RC, Khabbaz KR, Trovato ME, Rettagliati VM, Bhasin MK, Dillon ST, Libermann TA, Toumpoulis IK, Levitsky S, McCully JD. Preliminary biomarkers for identification of human ascending thoracic aortic aneurysm. J Am Heart Assoc 2013; 2:e000138. [PMID: 24231657 PMCID: PMC3886733 DOI: 10.1161/jaha.113.000138] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background Human ascending thoracic aortic aneurysms (ATAAs) are life threatening and constitute a leading cause of mortality in the United States. Previously, we demonstrated that collagens α2(V) and α1(XI) mRNA and protein expression levels are significantly increased in ATAAs. Methods and Results In this report, the authors extended these preliminary studies using high‐throughput proteomic analysis to identify additional biomarkers for use in whole blood real‐time RT‐PCR analysis to allow for the identification of ATAAs before dissection or rupture. Human ATAA samples were obtained from male and female patients aged 65±14 years. Both bicuspid and tricuspid aortic valve patients were included and compared with nonaneurysmal aortas (mean diameter 2.3 cm). Five biomarkers were identified as being suitable for detection and identification of ATAAs using qRT‐PCR analysis of whole blood. Analysis of 41 samples (19 small, 13 medium‐sized, and 9 large ATAAs) demonstrated the overexpression of 3 of these transcript biomarkers correctly identified 79.4% of patients with ATAA of ≥4.0 cm (P<0.001, sensitivity 0.79, CI=0.62 to 0.91; specificity 1.00, 95% CI=0.42 to 1.00). Conclusion A preliminary transcript biomarker panel for the identification of ATAAs using whole blood qRT‐PCR analysis in men and women is presented.
Collapse
Affiliation(s)
- Kendra M Black
- Division of Cardiothoracic Surgery, Beth Israel Deaconess Medical Center, Boston, MA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Stevens A, Hanson D, Whatmore A, Destenaves B, Chatelain P, Clayton P. Human growth is associated with distinct patterns of gene expression in evolutionarily conserved networks. BMC Genomics 2013; 14:547. [PMID: 23941278 PMCID: PMC3765282 DOI: 10.1186/1471-2164-14-547] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 08/05/2013] [Indexed: 11/25/2022] Open
Abstract
Background A co-ordinated tissue-independent gene expression profile associated with growth is present in rodent models and this is hypothesised to extend to all mammals. Growth in humans has similarities to other mammals but the return to active long bone growth in the pubertal growth spurt is a distinctly human growth event. The aim of this study was to describe gene expression and biological pathways associated with stages of growth in children and to assess tissue-independent expression patterns in relation to human growth. Results We conducted gene expression analysis on a library of datasets from normal children with age annotation, collated from the NCBI Gene Expression Omnibus (GEO) and EBI Arrayexpress databases. A primary data set was generated using cells of lymphoid origin from normal children; the expression of 688 genes (ANOVA false discovery rate modified p-value, q < 0.1) was associated with age, and subsets of these genes formed clusters that correlated with the phases of growth – infancy, childhood, puberty and final height. Network analysis on these clusters identified evolutionarily conserved growth pathways (NOTCH, VEGF, TGFB, WNT and glucocorticoid receptor – Hyper-geometric test, q < 0.05). The greatest degree of network ‘connectivity’ and hence functional significance was present in infancy (Wilcoxon test, p < 0.05), which then decreased through to adulthood. These observations were confirmed in a separate validation data set from lymphoid tissue. Similar biological pathways were observed to be associated with development-related gene expression in other tissues (conjunctival epithelia, temporal lobe brain tissue and bone marrow) suggesting the existence of a tissue-independent genetic program for human growth and maturation. Conclusions Similar evolutionarily conserved pathways have been associated with gene expression and child growth in multiple tissues. These expression profiles associate with the developmental phases of growth including the return to active long bone growth in puberty, a distinctly human event. These observations also have direct medical relevance to pathological changes that induce disease in children. Taking into account development-dependent gene expression profiles for normal children will be key to the appropriate selection of genes and pathways as potential biomarkers of disease or as drug targets.
Collapse
Affiliation(s)
- Adam Stevens
- Manchester Academic Health Sciences Centre, Faculty of Medical and Human Sciences, Royal Manchester Children's Hospital and the Institute of Human Development, University of Manchester, Manchester, United Kingdom.
| | | | | | | | | | | |
Collapse
|
31
|
Tomé-Carneiro J, Larrosa M, Yáñez-Gascón MJ, Dávalos A, Gil-Zamorano J, Gonzálvez M, García-Almagro FJ, Ruiz Ros JA, Tomás-Barberán FA, Espín JC, García-Conesa MT. One-year supplementation with a grape extract containing resveratrol modulates inflammatory-related microRNAs and cytokines expression in peripheral blood mononuclear cells of type 2 diabetes and hypertensive patients with coronary artery disease. Pharmacol Res 2013; 72:69-82. [DOI: 10.1016/j.phrs.2013.03.011] [Citation(s) in RCA: 272] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 03/25/2013] [Accepted: 03/25/2013] [Indexed: 12/11/2022]
|
32
|
Interindividual variation in the proteome of human peripheral blood mononuclear cells. PLoS One 2013; 8:e61933. [PMID: 23613975 PMCID: PMC3629925 DOI: 10.1371/journal.pone.0061933] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 03/15/2013] [Indexed: 01/12/2023] Open
Abstract
Peripheral blood mononuclear cells (PBMCs) are main actors in inflammatory processes and linked to many diseases, including rheumatoid arthritis, atherosclerosis, asthma, HIV and cancer. Moreover, they seem an interesting ‘surrogate tissue’ that can be used in biomarker discovery. In order to get a good experimental design for quantitative expression studies, the knowledge of the interindividual variation is an essential part. Therefore, PBMCs were isolated from 24 healthy volunteers (15 males, 9 females, ages 63–86) with no clinical signs of inflammation. The extracted proteins were separated using the two dimensional difference in gel electrophoresis technology (2D-DIGE), and the gel images were processed with the DeCyder 2D software. Protein spots present in at least 22 out of 24 healthy volunteers were selected for further statistical analysis. Determination of the coefficient of variation (CV) of the normalized spot volume values of these proteins, reveals that the total variation of the PBMC proteome varies between 12,99% to 148,45%, with a mean value of 28%. A supplemental look at the causes of technical variation showed that the isolation of PBMCs from whole blood is the factor which influences the experimental variance the most. This isolation should be handled with extra care and an additional washing step would be beneficial. Knowing the extent of variation, we show that at least 10 independent samples per group are needed to obtain statistical powerful data. This study demonstrates the importance of considering variance of a human population for a good experimental design for future protein profiling or biomarker studies.
Collapse
|
33
|
Maccarrone G, Rewerts C, Lebar M, Turck CW, Martins-de-Souza D. Proteome profiling of peripheral mononuclear cells from human blood. Proteomics 2013; 13:893-7. [DOI: 10.1002/pmic.201200377] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 11/08/2012] [Accepted: 11/20/2012] [Indexed: 01/21/2023]
Affiliation(s)
| | - Christiane Rewerts
- Max Planck Institute for Psychiatry; Proteomics and Biomarkers; Munich Germany
| | - Maria Lebar
- Max Planck Institute for Psychiatry; Proteomics and Biomarkers; Munich Germany
| | - Christoph W. Turck
- Max Planck Institute for Psychiatry; Proteomics and Biomarkers; Munich Germany
| | - Daniel Martins-de-Souza
- Max Planck Institute for Psychiatry; Proteomics and Biomarkers; Munich Germany
- Dept of Psychiatry; Ludwig Maximilians University (LMU); Munich Germany
- Lab. de Neurociências (LIM-27); Inst. de Psiquaitria; Faculdade de Medicina da Universidade de Sao Paulo; São Paulo Brazil
| |
Collapse
|
34
|
Li J, Lin LH, Wang J, Peng X, Liu YN, Xiao JH, Zhou YX, Li L. Quantitative analysis of multiple genes' expressions based on a novel competitive RT-PCR assay. Anal Bioanal Chem 2012. [PMID: 23208282 DOI: 10.1007/s00216-012-6518-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We established a novel gene expression analysis platform, Multiplex Competitive RT-PCR Using Fluorescent Universal Primers (MCF-PCR), to study multi-gene expression patterns simultaneously. This platform combines fluorescent universal primers, multiplex competitive RT-PCR, and capillary electrophoretic separation, which ensures MCF-PCR a reliable, medium-throughput, cost-effective technology for gene expression profiling. With cloned standard DNAs, the detection limits, precision, and sensitivity of MCF-PCR were evaluated and compared with that of the assay without adding competitive templates and real-time PCR, respectively. The results showed that detection limit was 3.125 × 10(3) to 3.2 × 10(6) copies, and 10 % copy differences between two samples can be detected by MCF-PCR. To validate MCF-PCR, we analyzed expression profile of five genes in interleukin (IL)-4/IL-13 pathway in peripheral blood of 20 healthy adults and 20 allergic dermatitis patients; three genes including IL-4, IL-13, and STAT6 were found differentially expressed in the two sample groups, which maybe key players in IL-4/IL-13 immunological signaling pathway and need further function analysis.
Collapse
Affiliation(s)
- Jia Li
- Department of Laboratory Medicine, Shanghai First People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | | | | | | | | | | | | | | |
Collapse
|
35
|
Leukocyte p53 protein biosignature through standard-aligned two-dimensional immunoblotting. J Proteomics 2012; 76 Spec No.:69-78. [PMID: 22842154 DOI: 10.1016/j.jprot.2012.07.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 06/22/2012] [Accepted: 07/16/2012] [Indexed: 12/11/2022]
Abstract
Peripheral leukocytes may reflect systemic disease and stress states through their gene expression profile. Subsequent protein analyses of leukocytes are hypothesized to provide essential information regarding systemic diseases. We have developed a protein biosignature analysis of the tumour suppressor and cell stress sensor p53 based on two-dimensional gel electrophoresis and immunoblotting, and utilize fluorescently labelled reference standards to significantly improve the alignment and comparison of biosignatures, including full-length p53 and isoforms p53β and p53γ. Analysis of the p53 biosignatures of peripheral blood mononuclear cells from 526 healthy individuals and 65 acute myeloid leukaemia patients indicated a novel putative p53 protein variant in a subset of individuals (227 of 526 healthy tested). The p53 variant was more distinct in the reference standard aligned biosignatures of healthy individuals, compared to the non-standard aligned leukaemia biosignatures. This approximately 2 kDa heavier variant of p53 appeared with similar frequency in leukemic and healthy test persons, without coinciding with known splice forms or post-translational modifications of p53. We propose that a standardized leukocyte protein biosignature of p53 provides a powerful research tool and indicate how p53 protein biosignatures may be used in future diagnostics. This article is part of a Special Issue entitled: Integrated omics.
Collapse
|
36
|
Shannon CP, Hollander Z, Wilson-McManus J, Balshaw R, Ng RT, McMaster R, McManus BM, Keown PA, Tebbutt SJ. White blood cell differentials enrich whole blood expression data in the context of acute cardiac allograft rejection. Bioinform Biol Insights 2012; 6:49-61. [PMID: 22550401 PMCID: PMC3329187 DOI: 10.4137/bbi.s9197] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Acute cardiac allograft rejection is a serious complication of heart transplantation. Investigating molecular processes in whole blood via microarrays is a promising avenue of research in transplantation, particularly due to the non-invasive nature of blood sampling. However, whole blood is a complex tissue and the consequent heterogeneity in composition amongst samples is ignored in traditional microarray analysis. This complicates the biological interpretation of microarray data. Here we have applied a statistical deconvolution approach, cell-specific significance analysis of microarrays (csSAM), to whole blood samples from subjects either undergoing acute heart allograft rejection (AR) or not (NR). We identified eight differentially expressed probe-sets significantly correlated to monocytes (mapping to 6 genes, all down-regulated in ARs versus NRs) at a false discovery rate (FDR) ≤ 15%. None of the genes identified are present in a biomarker panel of acute heart rejection previously published by our group and discovered in the same data***.
Collapse
|
37
|
Mesko B, Zahuczky G, Nagy L. The triad of success in personalised medicine: pharmacogenomics, biotechnology and regulatory issues from a Central European perspective. N Biotechnol 2012; 29:741-50. [PMID: 22414700 DOI: 10.1016/j.nbt.2012.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2011] [Revised: 02/22/2012] [Accepted: 02/26/2012] [Indexed: 12/16/2022]
Abstract
The population of the world has recently passed the 7 billion milestone and as the cost of human genome sequencing is rapidly declining, sequence data of billions of people should be accessible much sooner than anyone would have predicted 10 years ago. This will form the basis of personalised medicine. However it is still not clear, even in principle, whether these data, combined with data of the expression of one's genome in various cells and tissues relevant to different diseases, could be used effectively in clinical medicine and healthcare, or in predicting responses to different therapies. Therefore this is an important issue which needs to be addressed before more resources are wasted on less than informative studies and surveys simply because technologies exist. As a typical example, we have selected and summarise here key studies from the biomedical literature that focus on gene expression profiling of the response to biologic therapies in peripheral blood and biopsy samples in autoimmune diseases such as rheumatoid arthritis, spondylarthropathy, inflammatory bowel diseases and psoriasis. We also present the state of the biotechnology market from a European perspective, discuss how spin-offs leverage the power of genomic technologies and describe how they might contribute to personalised medicine. As ethical, legal and social issues are essential in the area of genomics, we analysed these aspects and present here the European situation with a special focus on Hungary. We propose that the synergy of these three issues: pharmacogenomics, biotechnology and regulatory issues should be considered a triad necessary to succeed in personalised medicine.
Collapse
Affiliation(s)
- Bertalan Mesko
- Department of Biochemistry and Molecular Biology, Research Center for Molecular Medicine, University of Debrecen, Medical and Health Science Center, Debrecen, Hungary
| | | | | |
Collapse
|
38
|
Chen G, Lu C, Zha Q, Xiao C, Xu S, Ju D, Zhou Y, Jia W, Lu A. A network-based analysis of traditional Chinese medicine cold and hot patterns in rheumatoid arthritis. Complement Ther Med 2011; 20:23-30. [PMID: 22305245 DOI: 10.1016/j.ctim.2011.10.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Revised: 10/11/2011] [Accepted: 10/14/2011] [Indexed: 10/15/2022] Open
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is a heterogeneous disease, and traditional Chinese medicine (TCM) can be used to classify RA into different patterns such as cold and hot based on its clinical manifestations. The aim of this study was to investigate potential network-based biomarkers for RA with either a cold or a hot pattern. METHOD Microarray technology was used to reveal gene expression profiles in CD4(+) T cells from 21 RA patients with cold pattern and 12 with hot pattern. A T-test was used to identify significant differences in gene expression among RA patients with either cold or hot pattern. Cytoscape software was used to search the existing literature and databases for protein-protein interaction information for genes of interest that were identified from this analysis. The IPCA algorithm was used to detect highly connected regions for inferring significant complexes or pathways in this protein-protein interaction network. Significant pathways and functions were extracted from these subnetworks by the Biological Network Gene Ontology tool. RESULT Four genes were expressed at higher levels in RA patients with cold pattern than in patients with hot pattern, and 21 genes had lower levels of expression. Protein-protein interaction network analysis for these genes showed that there were four highly connected regions. The most relevant functions and pathways extracted from these subnetwork regions were involved in small G protein signaling pathways, oxidation-reduction in fatty acid metabolism and T cell proliferation. CONCLUSION Complicated network based pathways appear to play a role in the different pattern manifestations in patients with RA, and our results suggest that network-based pathways might be the scientific basis for TCM pattern classification.
Collapse
Affiliation(s)
- Gao Chen
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Dongzhimen, Beijing 100700, PR China
| | | | | | | | | | | | | | | | | |
Collapse
|