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Granata V, Strina D, Possetti V, Leone R, Valentino S, Chiappetta K, Loppini M, Mantovani A, Bottazzi B, Asselta R, Sobacchi C, Inforzato A. Interleukin-1β Polymorphisms Are Genetic Markers of Susceptibility to Periprosthetic Joint Infection in Total Hip and Knee Arthroplasty. Genes (Basel) 2024; 15:596. [PMID: 38790226 PMCID: PMC11120921 DOI: 10.3390/genes15050596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/02/2024] [Accepted: 05/05/2024] [Indexed: 05/26/2024] Open
Abstract
Periprosthetic joint infections (PJIs) are serious complications of prosthetic surgery. The criteria for the diagnosis of PJI integrate clinical and laboratory findings in a complex and sometimes inconclusive workflow. Host immune factors hold potential as diagnostic biomarkers in bone and joint infections. We reported that the humoral pattern-recognition molecule long pentraxin 3 (PTX3) predicts PJI in total hip and knee arthroplasty (THA and TKA, respectively). If and how genetic variation in PTX3 and inflammatory genes that affect its expression (IL-1β, IL-6, IL-10, and IL-17A) contributes to the risk of PJI is unknown. We conducted a case-control study on a Caucasian historic cohort of THA and TKA patients who had prosthesis explant due to PJI (cases) or aseptic complications (controls). Saliva was collected from 93 subjects and used to extract DNA and genotype PTX3, IL-1β, IL-6, IL-10, and IL-17A single-nucleotide polymorphisms (SNPs). Moreover, the concentration of IL-1β, IL-10, and IL-6 was measured in synovial fluid and plasma. No association was found between PTX3 polymorphisms and PJI; however, the AGG haplotype, encompassing rs2853550, rs1143634, and rs1143627 in IL-1β, was linked to the infection (p = 0.017). Also, synovial levels of all inflammatory markers were higher in cases than in controls, and a correlation emerged between synovial concentration of PTX3 and that of IL-1β in cases only (Spearman r = 0.67, p = 0.004). We identified a relationship between rs2853550 and the synovial concentration of IL-1β and PTX3. Our findings suggest that IL-1β SNPs could be used for the early identification of THA and TKA patients with a high risk of infection.
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Affiliation(s)
- Valentina Granata
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Milan Unit, Institute for Genetic and Biomedical Research, National Research Council, 20138 Milan, Italy
| | - Dario Strina
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Milan Unit, Institute for Genetic and Biomedical Research, National Research Council, 20138 Milan, Italy
| | - Valentina Possetti
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
| | - Roberto Leone
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
| | - Sonia Valentino
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
| | - Katia Chiappetta
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
| | - Mattia Loppini
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
- Fondazione Livio Sciutto Onlus, Campus Savona, Università degli Studi di Genova, 16126 Savona, Italy
| | - Alberto Mantovani
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
- Harvey Research Institute, Queen Mary University of London Charterhouse Square, London EC1M 6BQ, UK
| | - Barbara Bottazzi
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
| | - Rosanna Asselta
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
| | - Cristina Sobacchi
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Milan Unit, Institute for Genetic and Biomedical Research, National Research Council, 20138 Milan, Italy
| | - Antonio Inforzato
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (D.S.); (V.P.); (R.L.); (S.V.); (K.C.); (M.L.); (A.M.); (B.B.); (R.A.); (C.S.)
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
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Feitosa TA, de Souza Sá MV, Pereira VC, de Andrade Cavalcante MK, Pereira VRA, da Costa Armstrong A, do Carmo RF. Association of polymorphisms in long pentraxin 3 and its plasma levels with COVID-19 severity. Clin Exp Med 2023; 23:1225-1233. [PMID: 36315310 PMCID: PMC9619017 DOI: 10.1007/s10238-022-00926-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/14/2022] [Indexed: 11/13/2022]
Abstract
COVID-19 is an infectious respiratory disease caused by SARS-CoV-2. Pentraxin 3 (PTX3) is involved in the activation and regulation of the complement system, demonstrating an important role in the pathogenesis of COVID-19. The aim was to evaluate the association of single nucleotide polymorphisms in PTX3 and its plasma levels with the severity of COVID-19. This is a retrospective cohort study, carried out between August 2020 and July 2021, including patients with confirmed COVID-19 hospitalized in 2 hospitals in the Northeast Region of Brazil. Polymorphisms in PTX3 (rs1840680 and rs2305619) were determined by real-time PCR. PTX3 plasma levels were measured by ELISA. Serum levels of interleukin (IL)-6, IL-8, and IL-10 were determined by flow cytometry. A multivariate logistic regression model was used to identify parameters independently associated with COVID-19 severity. P values < 0.05 were considered significant. The study included 496 patients, classified as moderate (n = 267) and severe (n = 229) cases. The PTX3 AA genotype (rs1840680) was independently associated with protection against severe COVID-19 (P = 0.037; odds ratio = 0.555). PTX3 plasma levels were significantly associated with COVID-19 severity and mortality (P < 0.05). PTX3 levels were significantly correlated with IL-6, IL-8, IL-10, C-reactive protein, total leukocytes, neutrophil-to-lymphocyte ratio, urea, creatinine, ferritin, length of hospital stay, and higher respiratory rate (P < 0.05). Our results revealed a protective effect of the PTX3 AA genotype (rs1840680) on the development of severe forms of COVID-19. Additionally, PTX3 plasma levels were associated with the severity of COVID-19. The results of this study provide evidence of an important role of PTX3 in the immunopathology of COVID-19.
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Affiliation(s)
- Thiala Alves Feitosa
- Postgraduate Program in Biosciences, Universidade Federal Do Vale Do São Francisco, Av. José de Sá Maniçoba, S/N, Centro, Petrolina, Pernambuco, Brazil
| | - Mirela Vanessa de Souza Sá
- College of Pharmaceutical Sciences, Universidade Federal Do Vale Do São Francisco, Petrolina, Pernambuco, Brazil
| | | | - Marton Kaique de Andrade Cavalcante
- Department of Immunology, Fundação Oswaldo Cruz, Recife, Brazil
- Postgraduate Program in Therapeutic Innovation, Center of Biosciences, Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | - Rodrigo Feliciano do Carmo
- Postgraduate Program in Biosciences, Universidade Federal Do Vale Do São Francisco, Av. José de Sá Maniçoba, S/N, Centro, Petrolina, Pernambuco, Brazil.
- College of Pharmaceutical Sciences, Universidade Federal Do Vale Do São Francisco, Petrolina, Pernambuco, Brazil.
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Protective effect of pentraxin 3 on pathological retinal angiogenesis in an in vitro model of diabetic retinopathy. Arch Biochem Biophys 2022; 725:109283. [DOI: 10.1016/j.abb.2022.109283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 11/22/2022]
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Kerget F, Kerget B, Kahraman ÇY, Araz Ö, Akgün M, Uçar EY, Sağlam L. Evaluation of the relationship between pentraxin 3 (PTX3) rs2305619 (281A/G) and rs1840680 (1449A/G) polymorphisms and the clinical course of COVID-19. J Med Virol 2021; 93:6653-6659. [PMID: 34314051 PMCID: PMC8426891 DOI: 10.1002/jmv.27238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 07/24/2021] [Indexed: 02/05/2023]
Abstract
Macrophage activation syndrome (MAS) is one of the main causes of morbidity and mortality in patients with coronavirus disease 2019 (COVID-19). This study aimed to investigate the relationship between the pentraxin 3 (PTX3) gene polymorphisms rs2305619 (281A/G) and rs1840680 (1449A/G) and the development of MAS in patients with COVID-19. The study included a total of 94 patients aged 18-45 who were diagnosed as having COVID-19 between June and December 2020. PTX3 281A/G and 1449A/G polymorphism frequencies were evaluated. PTX3 281A/G allele and genotype frequencies did not deviate from Hardy-Weinberg (HW) equilibrium in the MAS or non-MAS group (χ2 : 0.049, df: 2, p = 0.976, χ2 : 0.430, df: 2, p = 0.806). PTX3 1449A/G allele and genotype frequencies deviated significantly from HW equilibrium in the non-MAS group (χ2 : 6.794, df: 2, p = 0.033) but not in the MAS group (χ2 : 2.256, df: 2, p = 0.324). The AG genotype was significantly more frequent in the non-MAS group, while the AA genotype was significantly more frequent in the MAS group (χ2 : 11.099, df: 2, p= 0.004). Analysis of the PTX3 1449A/G polymorphism showed that individuals with the GG genotype had higher serum PTX3 levels than those with the AA and AG genotypes (p = 0.001 for both). Analysis of the PTX3 1449A/G polymorphism in patients with COVID-19 showed that those with the AG genotype were relatively more protected from MAS compared with individuals with the AA genotype. In addition, lower serum PTX3 levels are observed in patients carrying the A allele.
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Affiliation(s)
- Ferhan Kerget
- Depertmant of Infection Diseases and Clinical Microbiology, Erzurum Regional Education and Research HospitalHealth Sciences UniversityErzurumTurkey
| | - Buğra Kerget
- Department of Pulmonary DiseasesAtaturk University School of MedicineErzurumYakutiyeTurkey
| | - Çiğdem Yüce Kahraman
- Department of Medical GeneticAtaturk University School of MedicineErzurumYakutiyeTurkey
| | - Ömer Araz
- Department of Pulmonary DiseasesAtaturk University School of MedicineErzurumYakutiyeTurkey
| | - Metin Akgün
- Department of Pulmonary DiseasesAtaturk University School of MedicineErzurumYakutiyeTurkey
| | - Elif Yılmazel Uçar
- Department of Pulmonary DiseasesAtaturk University School of MedicineErzurumYakutiyeTurkey
| | - Leyla Sağlam
- Department of Pulmonary DiseasesAtaturk University School of MedicineErzurumYakutiyeTurkey
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Khrunin AV, Khvorykh GV, Rozhkova AV, Koltsova EA, Petrova EA, Kimelfeld EI, Limborska SA. Examination of Genetic Variants Revealed from a Rat Model of Brain Ischemia in Patients with Ischemic Stroke: A Pilot Study. Genes (Basel) 2021; 12:genes12121938. [PMID: 34946887 PMCID: PMC8701352 DOI: 10.3390/genes12121938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/26/2021] [Accepted: 11/28/2021] [Indexed: 11/16/2022] Open
Abstract
Although there has been great progress in understanding the genetic bases of ischemic stroke (IS), many of its aspects remain underexplored. These include the genetics of outcomes, as well as problems with the identification of real causative loci and their functional annotations. Therefore, analysis of the results obtained from animal models of brain ischemia could be helpful. We have developed a bioinformatic approach exploring single nucleotide polymorphisms (SNPs) in human orthologues of rat genes expressed differentially under conditions of induced brain ischemia. Using this approach, we identified and analyzed nine SNPs in 553 Russian individuals (331 patients with IS and 222 controls). We explored the association of SNPs with both IS outcomes and with the risk of IS. SNP rs66782529 (LGALS3) was associated with negative IS outcomes (p = 0.048). SNPs rs62278647 and rs2316710 (PTX3) were associated significantly with IS (p = 0.000029 and p = 0.0025, respectively). These correlations for rs62278647 and rs2316710 were found only in women, which suggests a sex-specific association of the PTX3 polymorphism. Thus, this research not only reveals some new genetic associations with IS and its outcomes but also shows how exploring variations in genes from a rat model of brain ischemia can be of use in searching for human genetic markers of this disorder.
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Affiliation(s)
- Andrey V. Khrunin
- Institute of Molecular Genetics of National Research Center “Kurchatov Institute”, Kurchatov Sq. 2, 123182 Moscow, Russia; (G.V.K.); (A.V.R.); (S.A.L.)
- Correspondence: ; Tel.: +7-499-1961851
| | - Gennady V. Khvorykh
- Institute of Molecular Genetics of National Research Center “Kurchatov Institute”, Kurchatov Sq. 2, 123182 Moscow, Russia; (G.V.K.); (A.V.R.); (S.A.L.)
| | - Alexandra V. Rozhkova
- Institute of Molecular Genetics of National Research Center “Kurchatov Institute”, Kurchatov Sq. 2, 123182 Moscow, Russia; (G.V.K.); (A.V.R.); (S.A.L.)
| | - Evgeniya A. Koltsova
- Department of Neurology, Neurosurgery and Medical Genetics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia; (E.A.K.); (E.A.P.); (E.I.K.)
| | - Elizaveta A. Petrova
- Department of Neurology, Neurosurgery and Medical Genetics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia; (E.A.K.); (E.A.P.); (E.I.K.)
| | - Ekaterina I. Kimelfeld
- Department of Neurology, Neurosurgery and Medical Genetics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia; (E.A.K.); (E.A.P.); (E.I.K.)
| | - Svetlana A. Limborska
- Institute of Molecular Genetics of National Research Center “Kurchatov Institute”, Kurchatov Sq. 2, 123182 Moscow, Russia; (G.V.K.); (A.V.R.); (S.A.L.)
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Wirestam L, Pihl S, Saleh M, Wetterö J, Sjöwall C. Plasma C-Reactive Protein and Pentraxin-3 Reference Intervals During Normal Pregnancy. Front Immunol 2021; 12:722118. [PMID: 34408755 PMCID: PMC8366313 DOI: 10.3389/fimmu.2021.722118] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/16/2021] [Indexed: 11/13/2022] Open
Abstract
Although several biomarkers are available to monitor the acute phase response, the short pentraxin C-reactive protein (CRP) is dominating in clinical practice. The long pentraxin 3 (PTX3) is structurally and functionally related to CRP, but not liver-derived. In addition, increased levels of PTX3 have been linked to preeclampsia. Reference intervals are usually based on healthy blood donors. Several physiological and immunological alterations occur during normal pregnancy with subsequent potential effects on blood analytes. Hence, this study aims to determine pregnancy-specific reference intervals for CRP and PTX3. Longitudinal clinical data and blood plasma samples from the 1st, 2nd and 3rd trimester of 100 healthy, non-medicating, females aged 18–40 at the time-point of conception were available to us. High‐sensitivity CRP measurements were performed by turbidimetry and enzyme-linked immunosorbent assay (ELISA) was used to quantify PTX3. CRP and PTX3 levels followed each other during the first two trimesters and both increased during the third trimester. CRP showed a median of 4.12 mg/L in the third trimester, and were significantly higher compared to the first (median 2.39 mg/L, p<0.0001) and the second (median 2.44 mg/L, p=0.0006) trimesters. In the third trimester PTX3 levels reached a median of 7.70 µg/L, and were significantly higher compared to the first (median 3.33 µg/L, p<0.0001) and the second (median 3.70 µg/L, p<0.0001) trimesters. Plasma albumin was inversely correlated with CRP (rho=-0.27, p<0.0001), but not with PTX3. In conclusion, it is important to consider pregnancy-specific reference values as elevations of CRP and PTX3 during the later phase may occur in absence of infection.
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Affiliation(s)
- Lina Wirestam
- Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden
| | - Sofia Pihl
- Department of Obstetrics and Gynaecology, Linköping University, Linköping, Sweden.,Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Muna Saleh
- Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden
| | - Jonas Wetterö
- Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden
| | - Christopher Sjöwall
- Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden
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Rocha S, Valente MJ, Coimbra S, Catarino C, Rocha-Pereira P, Oliveira JG, Madureira J, Fernandes JC, do Sameiro-Faria M, Miranda V, Belo L, Santos-Silva A, Bronze-da-Rocha E. Interleukin 6 (rs1800795) and pentraxin 3 (rs2305619) polymorphisms-association with inflammation and all-cause mortality in end-stage-renal disease patients on dialysis. Sci Rep 2021; 11:14768. [PMID: 34285273 PMCID: PMC8292348 DOI: 10.1038/s41598-021-94075-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 07/05/2021] [Indexed: 11/09/2022] Open
Abstract
Chronic inflammation plays an important role in the progression and outcome of chronic kidney disease (CKD). The circulating levels of the inflammatory biomarkers interleukin 6 (IL6) and pentraxin 3 (PTX3) are enhanced in CKD patients, and are associated with the progression of the disease and with higher risk for cardiovascular events, the major cause of death in CKD patients. Our aim was to study how specific polymorphisms of IL6 and PTX3 encoding genes affect the inflammatory response and outcome of end-stage renal disease (ESRD) patients on dialysis. Methodology included the analysis of two single nucleotide polymorphisms (SNP), namely the IL6 (rs1800795) polymorphism in the promoter region (-174G > C), and the PTX3 (rs2305619) polymorphism in the intron 1 (+ 281A > G), which were analyzed in ESRD patients on dialysis and in a group of heathy individuals. The allelic frequencies, genotype distribution and their association with circulating levels of the inflammatory markers C-reactive protein (CRP), IL6, growth differentiation factor 15 (GDF15) and PTX3, were determined in ESRD patients. Events of death were recorded along one year, to assess the association of the studied SNPs with all-cause mortality and the inflammatory biomarkers, in ESRD patients. Results showed that the allelic frequencies and genotype distribution for IL6 and PTX3 SNPs in the control group and ESRD patients were similar and in agreement with other European reports. For the IL6 polymorphism, we found a trend towards higher levels of high-sensitivity (hs) CRP, IL6 and PTX3 in the homozygous genotypes; the CC genotype also showed the highest levels of GDF15. The mortality rate after the 1-year follow-up was 10.4%. The CC genotype (IL6 SNP) was associated to a higher risk of mortality and deceased patients carrying this genotype also showed the highest levels of hsCRP. Regarding the studied PTX3 SNP, the AA genotype was linked to an enhanced inflammatory response, showing the highest values of hsCRP and IL6. Nevertheless, this genotype had no significant impact on the mortality rate. In conclusion, both studied SNPs seem to modulate the inflammatory response in ESRD and may, therefore, be determinant on disease progression and patients' outcome. Our data also highlights the importance of research on genetic variants that, although less frequent, may have significant biological value.
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Affiliation(s)
- Susana Rocha
- LAQV, REQUIMTE, Laboratório de Química Aplicada, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Maria João Valente
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Susana Coimbra
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.,CESPU, IINFACTS, Gandra, Paredes, Portugal
| | - Cristina Catarino
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Petronila Rocha-Pereira
- Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - José Gerardo Oliveira
- Centro de Investigação em Tecnologias de Saúde (CINTESIS), Faculdade de Medicina, Universidade do Porto, Porto, Portugal.,Clínica de Hemodiálise do Porto, Porto, Portugal
| | - José Madureira
- Centro de Hemodiálise de Nossa Senhora da Franqueira, NefroServe, Barcelos, Portugal
| | | | - Maria do Sameiro-Faria
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.,Unidade de Hemodiálise, Hospital Agostinho Ribeiro, Felgueiras, Portugal
| | - Vasco Miranda
- Clínica de Hemodiálise de Gondomar, Gondomar, Portugal
| | - Luís Belo
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Alice Santos-Silva
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
| | - Elsa Bronze-da-Rocha
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Zeng Q, Tang T, Huang B, Bu S, Xiao Y, Dai Y, Wei Z, Huang L, Jiang S. rs1840680 single nucleotide polymorphism in Pentraxin 3: a potential protective biomarker of severe community-acquired pneumonia. J Int Med Res 2021; 49:3000605211010621. [PMID: 33906523 PMCID: PMC8111280 DOI: 10.1177/03000605211010621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Objective Single nucleotide polymorphisms (SNPs) of pentraxin 3 (PTX3) are associated with various outcomes of lung infections. This study aimed to analyze the relationship between PTX3 polymorphisms and the severity of community-acquired pneumonia (CAP). Methods This is a retrospective case-control study comprising 43 patients with severe CAP (SCAP) and 97 patients with non-severe CAP. Three SNPs in the PTX3 gene (rs2305619, rs3816527, and rs1840680) from peripheral blood samples were genotyped by real-time polymerase chain reaction. The association between each SNP and the CAP severity was analyzed by logistic regression analysis. Results We found that the rs1840680 polymorphism was significantly associated with CAP clinical severity. However, no such association was observed for the genotypes and allele frequencies of rs2305619 or rs3816527. The PTX3 rs1840680 AG genotype was an independent factor for a lower risk of SCAP after multivariate logistic regression analysis. Male sex and coronary heart disease were associated with an increased risk of SCAP. Conclusions The PTX3 rs1840680 AG genotype was found to be associated with a lower risk of SCAP, and may serve as a potential protective biomarker to help clinical judgment and management.
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Affiliation(s)
- Qiaojun Zeng
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Tiantian Tang
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Biru Huang
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shiyi Bu
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yingqi Xiao
- Department of Respiratory Medicine, Tungwah Hospital of Sun Yat-sen University, Dongguan, China
| | - Yumeng Dai
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zixin Wei
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Linjie Huang
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shanping Jiang
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Institute of Pulmonary Diseases, Sun Yat-sen University, Guangzhou, Guangdong, China
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9
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Kologrivova I, Shtatolkina M, Suslova T, Ryabov V. Cells of the Immune System in Cardiac Remodeling: Main Players in Resolution of Inflammation and Repair After Myocardial Infarction. Front Immunol 2021; 12:664457. [PMID: 33868315 PMCID: PMC8050340 DOI: 10.3389/fimmu.2021.664457] [Citation(s) in RCA: 133] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/16/2021] [Indexed: 12/13/2022] Open
Abstract
The burden of heart failure (HF), developing after myocardial infarction MI, still represents a major issue in clinical practice. Failure of appropriate resolution of inflammation during post-myocardial injury is associated with unsuccessful left ventricular remodeling and underlies HF pathogenesis. Cells of the immune system have been shown to mediate both protective and damaging effects in heart remodeling. This ambiguity of the role of the immune system and inconsistent results of the recent clinical trials question the benefits of anti-inflammatory therapies during acute MI. The present review will summarize knowledge of the roles that different cells of the immune system play in the process of post-infarct cardiac healing. Data on the phenotype, active molecules and functions of the immune cells, based on the results of both experimental and clinical studies, will be provided. For some cellular subsets, such as macrophages, neutrophils, dendritic cells and lymphocytes, an anti-inflammatory activity has been attributed to the specific subpopulations. Activity of other cells, such as eosinophils, mast cells, natural killer (NK) cells and NKT cells has been shown to be highly dependent of the signals created by micro-environment. Also, new approaches for classification of cellular phenotypes based on the single-cell RNA sequencing allow better understanding of the phenotype of the cells involved in resolution of inflammation. Possible perspectives of immune-mediated therapy for AMI patients are discussed in the conclusion. We also outline unresolved questions that need to be solved in order to implement the current knowledge on the role of the immune cells in post-MI tissue repair into practice.
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Affiliation(s)
- Irina Kologrivova
- Department of Clinical Laboratory Diagnostics, Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russia
| | - Marina Shtatolkina
- Department of Emergency Cardiology, Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russia
| | - Tatiana Suslova
- Department of Clinical Laboratory Diagnostics, Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russia
| | - Vyacheslav Ryabov
- Department of Emergency Cardiology, Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russia.,Division of Cardiology, Department of Professional Development and Retraining, Siberian State Medical University, Tomsk, Russia
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10
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Tarantino U, Greggi C, Cariati I, Visconti VV, Gasparini M, Cateni M, Gasbarra E, Botta A, Salustri A, Scimeca M. The Role of PTX3 in Mineralization Processes and Aging-Related Bone Diseases. Front Immunol 2021; 11:622772. [PMID: 33584725 PMCID: PMC7878364 DOI: 10.3389/fimmu.2020.622772] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
The Long Pentraxin 3 (PTX3) is a multifunctional glycoprotein released by peripheral blood leukocytes and myeloid dendritic cells in response to primary pro-inflammatory stimuli, that acts as a non-redundant component of the humoral arm of innate immunity. In addition to the primary role in the acute inflammatory response, PTX3 seems to be involved in other physiological and pathological processes. Indeed, PTX3 seems to play a pivotal role in the deposition and remodeling of bone matrix during the mineralization process, promoting osteoblasts differentiation and activity. Recently, PTX3 was seen to be involved in the ectopic calcifications' formation in breast cancer disease. In this regard, it has been observed that breast cancer tumors characterized by high expression of PTX3 and high amount of Breast Osteoblast Like Cells (BOLCs) showed several Hydroxyapatite (HA) microcalcifications, suggesting a likely role for PTX3 in differentiation and osteoblastic activity in both bone and extra-bone sites. Furthermore, given its involvement in bone metabolism, several studies agree with the definition of PTX3 as a molecule significantly involved in the pathogenesis of age-related bone diseases, such as osteoporosis, both in mice and humans. Recent results suggest that genetic and epigenetic mechanisms acting on PTX3 gene are also involved in the progression of these diseases. Based on these evidences, the aim of our systemic review was to offer an overview of the variety of biological processes in which PTX3 is involved, focusing on bone mineralization, both in a physiological and pathological context.
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Affiliation(s)
- Umberto Tarantino
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Chiara Greggi
- Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,PhD students' Program in Medical-Surgical and Biotechnologies and Translational Medicine, Faculty of Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Ida Cariati
- Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,PhD students' Program in Medical-Surgical and Biotechnologies and Translational Medicine, Faculty of Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Virginia Veronica Visconti
- Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy.,Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,PhD students' Program in Medical-Surgical and Biotechnologies and Translational Medicine, Faculty of Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Monica Gasparini
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Marco Cateni
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Elena Gasbarra
- Department of Clinical Science and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Orthopedics and Traumatology, Policlinico Tor Vergata (PTV) Foundation, Rome, Italy
| | - Annalisa Botta
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Antonietta Salustri
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Manuel Scimeca
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
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11
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Zhang Y, Tedrow J, Nouraie M, Li X, Chandra D, Bon J, Kass DJ, Fuhrman CR, Leader JK, Duncan SR, Kaminski N, Sciurba FC. Elevated plasma level of Pentraxin 3 is associated with emphysema and mortality in smokers. Thorax 2021; 76:335-342. [PMID: 33479043 DOI: 10.1136/thoraxjnl-2020-215356] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 10/20/2020] [Accepted: 11/03/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Pentraxin 3 (PTX3) influences innate immunity and inflammation, host defence, the complement cascade and angiogenesis. PTX3 expression in lung and blood of subjects with tobacco exposure, and its potential relationship with disease pattern and clinical outcome are poorly understood. METHODS Using independent platforms and cohorts, we identified associations of PTX3 gene expression in lung tissue and plasma from current and former tobacco smokers (with and without chronic obstructive pulmonary disease, COPD) to disease phenotypes including quantitative CT determined emphysema, lung function, symptoms and survival. Two putative regulatory variants of the PTX3 gene were examined for association with COPD manifestations. The relationship between plasma PTX3 and hyaluronic acid levels was further examined. RESULTS PTX3 gene expression in lung tissue was directly correlated with emphysema severity (p<0.0001). Circulating levels of PTX3 were inversely correlated with FEV1 (p=0.006), and positively associated with emphysema severity (p=0.004) and mortality (p=0.008). Two PTX3 gene regulatory variants were associated with a lower risk for emphysema and expiratory airflow obstruction, and plasma levels of PTX3 and hyaluronic acid were related. CONCLUSIONS These data show strong and overlapping associations of lung and blood PTX3 levels, and PTX3 regulatory gene variants, with the severity of airflow obstruction, emphysema and mortality among smokers. These findings have potential implications regarding the pathogenesis of smoking-related lung diseases and warrant further exploration for the use of PTX3 as a predictive biomarker.
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Affiliation(s)
- Yingze Zhang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John Tedrow
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Pulmonary Medicine and Respiratory Care, St Mary's of Michigan, Kalamazoo, Michigan, USA
| | - Mehdi Nouraie
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Xiaoyun Li
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Divay Chandra
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jessica Bon
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Daniel J Kass
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Carl R Fuhrman
- Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Joseph K Leader
- Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Steven R Duncan
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Naftali Kaminski
- Section of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Frank C Sciurba
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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12
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Sun YH, Chou YH, Wang CH, Hsiao YH, Lee CY, Yang SF, Wang PH. Impact of pentraxin 3 genetic variants on uterine cervical cancer clinicopathologic characteristics. Int J Med Sci 2021; 18:2339-2346. [PMID: 33967610 PMCID: PMC8100632 DOI: 10.7150/ijms.57886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/24/2021] [Indexed: 02/01/2023] Open
Abstract
The aims of this study were to investigate the relationships among pentraxin 3 (PTX3) genetic variants and development and clinicopathological characteristics of uterine cervical cancer, and patient survival in Taiwanese women. The study enrolled 125 patients with invasive cancer and 98 patients with precancerous lesions of uterine cervix, and 325 control women. PTX3 genetic variants rs2120243, rs3816527, rs2305619 and rs1840680 were selected and their genotypic distributions were determined by real-time polymerase chain reaction. Our results indicated that patients with genotype CC in PTX3 rs2120243 and genotype GG in rs1840680 had more chance to have adenocarcinoma but not squamous cell carcinoma, as compared to those with CA/AA and those with GA/AA, respectively. No other clinicopatholgical characteristics were associated with PTX3 genetic variants. In addition, PTX3 genetic variants were not associated with 5 years survival of cervical cancer patients. In conclusions, PTX3 genetic variants are not associated with carcinogenesis and clinicopathological variables of uterine cervix and patient survival in Taiwanese women. The only independent predictor for the 5 years survival is pelvic lymph node metastasis.
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Affiliation(s)
- Yi-Hung Sun
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Obstetrics and Gynecology, Chi-Mei Foundation Medical Center, Tainan, Taiwan
| | - Ying-Hsiang Chou
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung, Taiwan.,Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chun-Hao Wang
- Department of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Hsuan Hsiao
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Obstetrics and Gynecology, Changhua Christian Hospital, Changhua, Taiwan
| | - Chung-Yuan Lee
- Department of Obstetrics and Gynecology, Chiayi Chang Gung Memorial Hospital Chiayi, Taiwan.,Department of Nursing, Chang Gung University of Science and Technology, Chiayi Campus, Chiayi, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Po-Hui Wang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung, Taiwan
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13
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Dharma S, Dakota I, Wijaya S, Ekawati E, Sukmawan R, Siswanto BB. Association of microRNA-224-3p and microRNA-155-5p expressions with plasma long pentraxin 3 concentration and coronary microvascular obstruction following primary angioplasty for acute ST-segment elevation myocardial infarction. BMC Res Notes 2020; 13:499. [PMID: 33121529 PMCID: PMC7597037 DOI: 10.1186/s13104-020-05329-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 10/09/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE Pro-inflammatory stimuli induce a variety set of microRNAs (miRs) expression that regulate long pentraxin-3 (PTX3) protein, which associates with a procoagulant state in the endothelial cells. We evaluated, for the first time in human, the association of miR-224-3p and miR-155-5p expressions with plasma PTX3 concentration and coronary microvascular obstruction (MVO) in patients with acute ST-segment elevation myocardial infarction (STEMI) with symptom onset ≤ 12 h and treated by primary angioplasty. Blood samples for miRs and PTX3 measurement were drawn at emergency department presentation, and were measured by TaqMan real-time PCR and human ELISA kit, respectively. RESULTS Of the 217 patients (median age: 54 years, male: 88%), 130 (60%) had angiographic MVO. Spearman analysis showed no correlation between miR-224-3p and miR-155-5p expressions with plasma PTX3 concentration. After adjustment with sex, age, diabetes mellitus, and plasma PTX3 concentration, miR-224-3p ≥ median group was associated with angiographic MVO (odds ratio, 2.60; 95% confidence interval, 1.24 to 5.44, p = 0.01). This study suggests that miR-224-3p and miR-155-5p expressions did not correlate with plasma PTX3 concentration. However, miR-224-3p expression associates with angiographic MVO following primary angioplasty for STEMI. Future studies are needed to identify the specific gene/protein related with miR-224-3p expression in MVO.
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Affiliation(s)
- Surya Dharma
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, Indonesian Cardiovascular Research Center, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia.
| | - Iwan Dakota
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - Shoma Wijaya
- Indonesian Cardiovascular Research Center, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - Elok Ekawati
- Indonesian Cardiovascular Research Center, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - Renan Sukmawan
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - Bambang Budi Siswanto
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
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14
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Fossati G, Matteoli M, Menna E. Astrocytic Factors Controlling Synaptogenesis: A Team Play. Cells 2020; 9:E2173. [PMID: 32993090 PMCID: PMC7600026 DOI: 10.3390/cells9102173] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/14/2022] Open
Abstract
Astrocytes are essential players in brain circuit development and homeostasis, controlling many aspects of synapse formation, function, plasticity and elimination both during development and adulthood. Accordingly, alterations in astrocyte morphogenesis and physiology may severely affect proper brain development, causing neurological or neuropsychiatric conditions. Recent findings revealed a huge astrocyte heterogeneity among different brain areas, which is likely at the foundation of the different synaptogenic potential of these cells in selected brain regions. This review highlights recent findings on novel mechanisms that regulate astrocyte-mediated synaptogenesis during development, and the control of synapse number in the critical period or upon synaptic plasticity.
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Affiliation(s)
- Giuliana Fossati
- Humanitas Clinical and Research Center—IRCCS—NeuroCenter, via Manzoni 56, 20089 Rozzano, Milan, Italy; (G.F.); (M.M.)
| | - Michela Matteoli
- Humanitas Clinical and Research Center—IRCCS—NeuroCenter, via Manzoni 56, 20089 Rozzano, Milan, Italy; (G.F.); (M.M.)
- CNR, Department of Biomedical Sciences, Institute of Neuroscience—URT Humanitas, via Manzoni 56, 20089 Rozzano, Italy
| | - Elisabetta Menna
- Humanitas Clinical and Research Center—IRCCS—NeuroCenter, via Manzoni 56, 20089 Rozzano, Milan, Italy; (G.F.); (M.M.)
- CNR, Department of Biomedical Sciences, Institute of Neuroscience—URT Humanitas, via Manzoni 56, 20089 Rozzano, Italy
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15
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Parente R, Doni A, Bottazzi B, Garlanda C, Inforzato A. The complement system in Aspergillus fumigatus infections and its crosstalk with pentraxins. FEBS Lett 2020; 594:2480-2501. [PMID: 31994174 DOI: 10.1002/1873-3468.13744] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/19/2019] [Accepted: 01/16/2020] [Indexed: 12/13/2022]
Abstract
Aspergillosis is a life-threatening infection mostly affecting immunocompromised individuals and primarily caused by the saprophytic fungus Aspergillus fumigatus. At the host-pathogen interface, both cellular and humoral components of the innate immune system are increasingly acknowledged as essential players in the recognition and disposal of this opportunistic mold. Fundamental hereof is the contribution of the complement system, which deploys all three activation pathways in the battle against A. fumigatus, and functionally cooperates with other soluble pattern recognition molecules, including pentraxins. In particular, preclinical and clinical observations point to the long pentraxin PTX3 as a nonredundant and complement-dependent effector with protective functions against A. fumigatus. Based on past and current literature, here we discuss how the complement participates in the immune response to this fungal pathogen, and illustrate its crosstalk with the pentraxins, with a focus on PTX3. Emphasis is placed on the molecular mechanisms underlying such processes, the genetic evidence from human epidemiology, and the translational potential of the currently available knowledge.
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Affiliation(s)
- Raffaella Parente
- Department of Immunology and Inflammation, Humanitas Clinical and Research Institute - IRCCS, Milan, Italy
| | - Andrea Doni
- Department of Immunology and Inflammation, Humanitas Clinical and Research Institute - IRCCS, Milan, Italy
| | - Barbara Bottazzi
- Department of Immunology and Inflammation, Humanitas Clinical and Research Institute - IRCCS, Milan, Italy
| | - Cecilia Garlanda
- Department of Immunology and Inflammation, Humanitas Clinical and Research Institute - IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Antonio Inforzato
- Department of Immunology and Inflammation, Humanitas Clinical and Research Institute - IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
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16
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Investigation of the Mechanism Underlying Calcium Dobesilate-Mediated Improvement of Endothelial Dysfunction and Inflammation Caused by High Glucose. Mediators Inflamm 2019; 2019:9893682. [PMID: 31780874 PMCID: PMC6855025 DOI: 10.1155/2019/9893682] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 08/15/2019] [Accepted: 09/16/2019] [Indexed: 12/11/2022] Open
Abstract
Background/Aims Diabetic kidney disease (DKD) is a leading cause of end-stage renal disease. Calcium dobesilate (CaD) is widely used to treat diabetic retinopathy. Recent studies have demonstrated that CaD exerts protective effects against diabetic nephropathy. The aim of this study was to elucidate the molecular and cellular mechanisms underlying the protective effects of CaD. Methods Human umbilical vein endothelial cells (HUVECs) were cultured with different D-glucose concentrations to determine the effects of high glucose on HUVEC gene expression. HUVECs were also incubated with CaD (25 μM, 50 μM, and 100 μM) for 3 days to determine the effects of CaD on HUVEC viability. db/db mice were treated with CaD. 2-[(Aminocarbonyl)amino]-5-(4-fluorophenyl)-3-thiophenecarboxamide (TPCA-1) blocked the nuclear factor-κB (NF-κB) pathway in HUVECs. A pentraxin 3 (PTX3) small interfering RNA (siRNA) intervention experiment was performed in the cells. An adenovirus-encapsulated PTX3 siRNA intervention experiment was performed in db/db mice. Western blot and real-time PCR analyses were used to detect PTX3, p-IKBa/IKBa (I-kappa-B-alpha), and p-eNOS/eNOS (endothelial nitric oxide synthase) expression in mice and HUVECs. Hematoxylin-eosin (HE) staining and periodic acid-Schiff (PAS) staining were used to observe renal tissue damage in mice. PTX3 expression was observed by immunohistochemical staining. Results CaD downregulated the expression of PTX3 and p-IKBa/IKBa and upregulated the expression of p-eNOS/eNOS in vitro. When TPCA-1 was used, high glucose induced high PTX3 expression, and the expression of p-eNOS/eNOS increased. After PTX3 gene silencing, the expression of p-eNOS/eNOS also increased. In vivo, CaD reduced the expression of PTX3 and p-IKBa/IKBa in the kidneys of db/db mice and increased the expression of p-eNOS/eNOS. After PTX3 gene silencing, the urine protein and renal function of db/db mice were ameliorated, the glomerular extracellular matrix was decreased, and the expression of p-eNOS/eNOS was increased. Conclusions Our results suggested that CaD may inhibit the expression of PTX3 by altering the IKK/IKB/NF-κB pathway, thereby improving endothelial dysfunction in HUVECs. PTX3 may be a potential therapeutic target for DKD.
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17
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Dharma S, Sari NY, Parlautan A, Sukmawan R, Wijaya S, Ekawati E, Santoso A. The 3q25 rs2305619 Polymorphism Is Associated With Coronary Microvascular Obstruction Following Primary Angioplasty for Acute ST-Segment-Elevation Myocardial Infarction. Circ Cardiovasc Interv 2019; 12:e008228. [PMID: 31766867 DOI: 10.1161/circinterventions.119.008228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Surya Dharma
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, Indonesian Cardiovascular Research Center, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia (S.D.)
| | - Novi Yanti Sari
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia (N.Y.S, A.P, R.S, A.S)
| | - Andrew Parlautan
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia (N.Y.S, A.P, R.S, A.S)
| | - Renan Sukmawan
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia (N.Y.S, A.P, R.S, A.S)
| | - Shoma Wijaya
- Indonesian Cardiovascular Research Center, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia (S.W, E.E)
| | - Elok Ekawati
- Indonesian Cardiovascular Research Center, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia (S.W, E.E)
| | - Anwar Santoso
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia (N.Y.S, A.P, R.S, A.S)
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18
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Benn M, Nordestgaard BG. From genome-wide association studies to Mendelian randomization: novel opportunities for understanding cardiovascular disease causality, pathogenesis, prevention, and treatment. Cardiovasc Res 2019; 114:1192-1208. [PMID: 29471399 DOI: 10.1093/cvr/cvy045] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 02/16/2018] [Indexed: 12/22/2022] Open
Abstract
The Mendelian randomization approach is an epidemiological study design incorporating genetic information into traditional epidemiological studies to infer causality of biomarkers, risk factors, or lifestyle factors on disease risk. Mendelian randomization studies often draw on novel information generated in genome-wide association studies on causal associations between genetic variants and a risk factor or lifestyle factor. Such information can then be used in a largely unconfounded study design free of reverse causation to understand if and how risk factors and lifestyle factors cause cardiovascular disease. If causation is demonstrated, an opportunity for prevention of disease is identified; importantly however, before prevention or treatment can be implemented, randomized intervention trials altering risk factor levels or improving deleterious lifestyle factors needs to document reductions in cardiovascular disease in a safe and side-effect sparse manner. Documentation of causality can also inform on potential drug targets, more likely to be successful than prior approaches often relying on animal or cell studies mainly. The present review summarizes the history and background of Mendelian randomization, the study design, assumptions for using the design, and the most common caveats, followed by a discussion on advantages and disadvantages of different types of Mendelian randomization studies using one or more samples and different levels of information on study participants. The review also provides an overview of results on many of the risk factors and lifestyle factors for cardiovascular disease examined to date using the Mendelian randomization study design.
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Affiliation(s)
- Marianne Benn
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Børge G Nordestgaard
- The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Denmark.,The Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital, Denmark
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19
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Yeh CM, Lin CW, Chuang CY, Liu YF, Chou CH, Yang SF, Chen MK. Functional Genetic Variant of Long Pentraxin 3 Gene Is Associated With Clinical Aspects of Oral Cancer in Male Patients. Front Oncol 2019; 9:581. [PMID: 31334115 PMCID: PMC6616059 DOI: 10.3389/fonc.2019.00581] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/14/2019] [Indexed: 12/18/2022] Open
Abstract
Long pentraxin 3 (PTX3) is produced by various cell types and is correlated with tumor progression in various tumor types. However, the clinical significance of PTX3 polymorphisms in oral cancer and their correlation with the risk of cancer are still unclear. In this study, we assessed the influence of PTX3 gene polymorphisms and environmental factors on susceptibility to oral tumorigenesis. We recruited 865 cases with oral cancer and 1,189 controls. Four single-nucleotide variations of the PTX3 gene (rs1840680, rs2305619, rs3816527, and rs2120243) were verified using a real-time polymerase chain reaction in control participants and cases with oral cancer. We found that rs3816527 in smokers was correlated with the development of late-stage cancer (odds ratio [OR], 2.328; 95% confidence interval [CI], 1.078-5.027) and increased lymph node metastasis (OR, 2.152; 95% CI, 1.047-4.422). Moreover, additional bioinformatics analysis results showed that the rs3816527 C allele variant to the A allele exhibited the strongest exonic splicing enhancer activity. In conclusion, our results suggested that PTX3 rs3816527 plays a role in oral cancer development.
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Affiliation(s)
- Chia-Ming Yeh
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan.,Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - Chiao-Wen Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan.,Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chun-Yi Chuang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yu-Fan Liu
- Department of Biomedical Sciences, College of Medicine Sciences and Technology, Chung Shan Medical University, Taichung, Taiwan
| | - Chia-Hsuan Chou
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Mu-Kuan Chen
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan.,Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
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20
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Pentraxin 3 deficiency exacerbates lipopolysaccharide-induced inflammation in adipose tissue. Int J Obes (Lond) 2019; 44:525-538. [PMID: 31209269 DOI: 10.1038/s41366-019-0402-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/12/2019] [Accepted: 04/27/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND/OBJECTIVES Pentraxin 3 (PTX3) has been characterized as a soluble and multifunctional pattern recognition protein in the regulation of innate immune response. However, little is known about its role in adipose tissue inflammation and obesity. Herein, we investigated the role of PTX3 in the regulation of lipopolysaccharide (LPS)-induced inflammation in adipocytes and adipose tissue, as well as high-fat diet (HFD)-induced metabolic inflammation in obesity. METHODS Ptx3 knockdown 3T3-L1 Cells were generated using shRNA for Ptx3 gene and treated with different inflammatory stimuli. For the in vivo studies, Ptx3 knockout mice were treated with 0.3 mg/kg of LPS for 6 h. Adipose tissues were collected for gene and protein expression by qPCR and western blotting, respectively. Ptx3 knockout mice were fed with HFD for 12 week since 6 week of age. RESULTS We observed that the expression of PTX3 in adipose tissue and serum PTX3 were markedly increased in response to LPS administration. Knocking down Ptx3 in 3T3-L1 cells reduced adipogenesis and caused a more profound and sustained upregulation of proinflammatory gene expression and signaling pathway activation during LPS-stimulated inflammation in 3T3-L1 adipocytes. In vivo studies showed that PTX3 deficiency significantly exacerbated the LPS-induced upregulation of inflammatory genes and downregulation of adipogeneic genes in visceral and subcutaneous adipose tissue of mice. Accordingly, LPS stimulation elicited increased activation of nuclear factor-κB (NF-κB) and p44/42 MAPK (Erk1/2) signaling pathways in visceral and subcutaneous adipose tissue. The expression of PTX3 in adipose tissue was also induced by HFD, and PTX3 deficiency led to the upregulation of proinflammatory genes in visceral adipose tissue of HFD-induced obese mice. CONCLUSIONS Our results suggest a protective role of PTX3 in LPS- and HFD-induced sustained inflammation in adipose tissue.
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21
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Porte R, Davoudian S, Asgari F, Parente R, Mantovani A, Garlanda C, Bottazzi B. The Long Pentraxin PTX3 as a Humoral Innate Immunity Functional Player and Biomarker of Infections and Sepsis. Front Immunol 2019; 10:794. [PMID: 31031772 PMCID: PMC6473065 DOI: 10.3389/fimmu.2019.00794] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 03/26/2019] [Indexed: 12/12/2022] Open
Abstract
The first line of defense in innate immunity is provided by cellular and humoral mediators. Pentraxins are a superfamily of phylogenetically conserved humoral mediators of innate immunity. PTX3, the first long pentraxin identified, is a soluble pattern recognition molecule rapidly produced by several cell types in response to primary pro-inflammatory signals and microbial recognition. PTX3 acts as an important mediator of innate immunity against pathogens of fungal, bacterial and viral origin, and as a regulator of inflammation, by modulating complement activation and cell extravasation, and facilitating pathogen recognition by myeloid cells. In sepsis, PTX3 plasma levels are associated with severity of the condition, patient survival, and response to therapy. In combination with other established biomarkers, PTX3 could improve stratification of sepsis patients and thus, complement the system of classification and monitoring of this disease.
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Affiliation(s)
- Rémi Porte
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center-IRCCS, Milan, Italy
| | - Sadaf Davoudian
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Fatemeh Asgari
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Raffaella Parente
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center-IRCCS, Milan, Italy
| | - Alberto Mantovani
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center-IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy.,The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Cecilia Garlanda
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center-IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Barbara Bottazzi
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center-IRCCS, Milan, Italy
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22
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Doni A, Stravalaci M, Inforzato A, Magrini E, Mantovani A, Garlanda C, Bottazzi B. The Long Pentraxin PTX3 as a Link Between Innate Immunity, Tissue Remodeling, and Cancer. Front Immunol 2019; 10:712. [PMID: 31019517 PMCID: PMC6459138 DOI: 10.3389/fimmu.2019.00712] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/15/2019] [Indexed: 12/20/2022] Open
Abstract
The innate immune system comprises a cellular and a humoral arm. Humoral pattern recognition molecules include complement components, collectins, ficolins, and pentraxins. These molecules are involved in innate immune responses by recognizing microbial moieties and damaged tissues, activating complement, exerting opsonic activity and facilitating phagocytosis, and regulating inflammation. The long pentraxin PTX3 is a prototypic humoral pattern recognition molecule that, in addition to providing defense against infectious agents, plays several functions in tissue repair and regulation of cancer-related inflammation. Characterization of the PTX3 molecular structure and biochemical properties, and insights into its interactome and multiple roles in tissue damage and remodeling support the view that microbial and matrix recognition are evolutionarily conserved functions of humoral innate immunity molecules.
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Affiliation(s)
- Andrea Doni
- Humanitas Clinical and Research Institute-IRCCS, Milan, Italy
| | - Matteo Stravalaci
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Antonio Inforzato
- Humanitas Clinical and Research Institute-IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Elena Magrini
- Humanitas Clinical and Research Institute-IRCCS, Milan, Italy
| | - Alberto Mantovani
- Humanitas Clinical and Research Institute-IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy.,The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Cecilia Garlanda
- Humanitas Clinical and Research Institute-IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
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23
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Bally I, Inforzato A, Dalonneau F, Stravalaci M, Bottazzi B, Gaboriaud C, Thielens NM. Interaction of C1q With Pentraxin 3 and IgM Revisited: Mutational Studies With Recombinant C1q Variants. Front Immunol 2019; 10:461. [PMID: 30923526 PMCID: PMC6426777 DOI: 10.3389/fimmu.2019.00461] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 02/20/2019] [Indexed: 12/02/2022] Open
Abstract
Pentraxins and complement defense collagens are soluble recognition proteins that sense pathogens and altered-self elements, and trigger immune responses including complement activation. PTX3 has been shown to interact with the globular recognition domains (gC1q) of the C1q protein of the classical complement pathway, thereby modulating complement activity. The C1q-PTX3 interaction has been characterized previously by site-specific mutagenesis using individual gC1q domains of each of the three C1q chains. The present study is aimed at revisiting this knowledge taking advantage of full-length recombinant C1q. Four mutations targeting exposed amino acid residues in the gC1q domain of each of the C1q chains (LysA200Asp-LysA201Asp, ArgB108Asp-ArgB109Glu, TyrB175Leu, and LysC170Glu) were introduced in recombinant C1q and the interaction properties of the mutants were analyzed using surface plasmon resonance. All C1q mutants retained binding to C1r and C1s proteases and mannose-binding lectin-associated serine proteases, indicating that the mutations did not affect the function of the collagen-like regions of C1q. The effect of these mutations on the interaction of C1q with PTX3 and IgM, and both the PTX3- and IgM-mediated activation of the classical complement pathway were investigated. The LysA200Asp-LysA201Asp and LysC170Glu mutants retained partial interaction with PTX3 and IgM, however they triggered efficient complement activation. In contrast, the ArgB108Asp-ArgB109Glu mutation abolished C1q binding to PTX3 and IgM, and significantly decreased complement activation. The TyrB175Leu mutant exhibited decreased PTX3- and IgM-dependent complement activation. Therefore, we provided evidence that, in the context of the full length C1q protein, a key contribution to the interaction with both PTX3 and IgM is given by the B chain Arg residues that line the side of the gC1q heterotrimer, with a minor participation of a Lys residue located at the apex of gC1q. Furthermore, we generated recombinant forms of the human PTX3 protein bearing either D or A at position 48, a polymorphic site of clinical relevance in a number of infections, and observed that both allelic variants equally recognized C1q.
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Affiliation(s)
- Isabelle Bally
- Université Grenoble Alpes, CEA, CNRS, IBS, Grenoble, France
| | - Antonio Inforzato
- Humanitas Clinical and Research Center, Rozzano, Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
| | | | - Matteo Stravalaci
- Humanitas Clinical and Research Center, Rozzano, Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
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24
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Garlanda C, Bottazzi B, Magrini E, Inforzato A, Mantovani A. PTX3, a Humoral Pattern Recognition Molecule, in Innate Immunity, Tissue Repair, and Cancer. Physiol Rev 2018; 98:623-639. [PMID: 29412047 DOI: 10.1152/physrev.00016.2017] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Innate immunity includes a cellular and a humoral arm. PTX3 is a fluid-phase pattern recognition molecule conserved in evolution which acts as a key component of humoral innate immunity in infections of fungal, bacterial, and viral origin. PTX3 binds conserved microbial structures and self-components under conditions of inflammation and activates effector functions (complement, phagocytosis). Moreover, it has a complex regulatory role in inflammation, such as ischemia/reperfusion injury and cancer-related inflammation, as well as in extracellular matrix organization and remodeling, with profound implications in physiology and pathology. Finally, PTX3 acts as an extrinsic oncosuppressor gene by taming tumor-promoting inflammation in murine and selected human tumors. Thus evidence suggests that PTX3 is a key homeostatic component at the crossroad of innate immunity, inflammation, tissue repair, and cancer. Dissecting the complexity of PTX3 pathophysiology and human genetics paves the way to diagnostic and therapeutic exploitation.
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Affiliation(s)
- Cecilia Garlanda
- Humanitas Clinical and Research Center, Rozzano, Milan , Italy ; Humanitas University, Rozzano, Milan , Italy ; Department of Medical Biotechnologies and Translational Medicine, University of Milan , Milan , Italy ; and The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Barbara Bottazzi
- Humanitas Clinical and Research Center, Rozzano, Milan , Italy ; Humanitas University, Rozzano, Milan , Italy ; Department of Medical Biotechnologies and Translational Medicine, University of Milan , Milan , Italy ; and The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Elena Magrini
- Humanitas Clinical and Research Center, Rozzano, Milan , Italy ; Humanitas University, Rozzano, Milan , Italy ; Department of Medical Biotechnologies and Translational Medicine, University of Milan , Milan , Italy ; and The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Antonio Inforzato
- Humanitas Clinical and Research Center, Rozzano, Milan , Italy ; Humanitas University, Rozzano, Milan , Italy ; Department of Medical Biotechnologies and Translational Medicine, University of Milan , Milan , Italy ; and The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Alberto Mantovani
- Humanitas Clinical and Research Center, Rozzano, Milan , Italy ; Humanitas University, Rozzano, Milan , Italy ; Department of Medical Biotechnologies and Translational Medicine, University of Milan , Milan , Italy ; and The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
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25
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Daigo K, Inforzato A, Barajon I, Garlanda C, Bottazzi B, Meri S, Mantovani A. Pentraxins in the activation and regulation of innate immunity. Immunol Rev 2017; 274:202-217. [PMID: 27782337 DOI: 10.1111/imr.12476] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Humoral fluid phase pattern recognition molecules (PRMs) are a key component of the activation and regulation of innate immunity. Humoral PRMs are diverse. We focused on the long pentraxin PTX3 as a paradigmatic example of fluid phase PRMs. PTX3 acts as a functional ancestor of antibodies and plays a non-redundant role in resistance against selected microbes in mouse and man and in the regulation of inflammation. This molecule interacts with complement components, thus modulating complement activation. In particular, PTX3 regulates complement-driven macrophage-mediated tumor progression, acting as an extrinsic oncosuppressor in preclinical models and selected human tumors. Evidence collected over the years suggests that PTX3 is a biomarker and potential therapeutic agent in humans, and pave the way to translation of this molecule into the clinic.
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Affiliation(s)
- Kenji Daigo
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | - Antonio Inforzato
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center, Rozzano (Milan), Italy.,Department of Medical Biotechnologies and Translational Medicine, University of Milan, Italy
| | | | - Cecilia Garlanda
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | - Barbara Bottazzi
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | - Seppo Meri
- Immunobiology Research Program, Research Programs Unit, Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki , Helsinki , Finland
| | - Alberto Mantovani
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center, Rozzano (Milan), Italy.,Humanitas University, Rozzano, Italy
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26
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Rubino M, Kunderfranco P, Basso G, Greco CM, Pasqualini F, Serio S, Roncalli M, Laghi L, Mantovani A, Papait R, Garlanda C. Epigenetic regulation of the extrinsic oncosuppressor PTX3 gene in inflammation and cancer. Oncoimmunology 2017; 6:e1333215. [PMID: 28811977 PMCID: PMC5543905 DOI: 10.1080/2162402x.2017.1333215] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/15/2017] [Accepted: 05/15/2017] [Indexed: 12/30/2022] Open
Abstract
PTX3 is a component of the humoral arm of innate immunity and an extrinsic oncosuppressor gene taming tumor-promoting inflammation. Here, we show that two enhancers differently regulate PTX3 expression: enhancer 1, located 230 kb upstream of PTX3 promoter, mediated the action of inflammatory transcription factors; and enhancer 2, encompassing PTX3 second exon, was implicated in pre-initiation complex assembly. Polycomb repressive complex 2 silenced these regulatory elements and the promoter in basal condition. Enhancer 1 was epigenetically inactivated in early colorectal cancer (CRC) stages, while the promoter and enhancer 2 showed increasingly DNA methylation during CRC progression from adenomas to stage II and III CRC. Inhibition of DNA methylation rescued PTX3 expression in CRC. Finally, enhancer 1 acquired the binding of STAT3 in stage I CRC, and inhibition of STAT3 phosphorylation restored PTX3 activity and decreased enhancer 1 methylation. Thus, the expression of PTX3 is under the control of two enhancers, which emerge as important fine regulators of PTX3 expression in inflammation and cancer.
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Affiliation(s)
- Marcello Rubino
- Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | | | - Gianluca Basso
- Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | | | | | - Simone Serio
- Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | | | - Luigi Laghi
- Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | - Alberto Mantovani
- Humanitas Clinical and Research Center, Rozzano (Milan), Italy.,Humanitas University of Milan, Rozzano, Italy
| | - Roberto Papait
- Humanitas Clinical and Research Center, Rozzano (Milan), Italy.,Institute of Genetics and Biomedical Research, National Research Council, Rozzano (Milan), Italy
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27
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Wirestam L, Enocsson H, Skogh T, Eloranta ML, Rönnblom L, Sjöwall C, Wetterö J. Interferon-α coincides with suppressed levels of pentraxin-3 (PTX3) in systemic lupus erythematosus and regulates leucocyte PTX3 in vitro. Clin Exp Immunol 2017; 189:83-91. [PMID: 28257596 DOI: 10.1111/cei.12957] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2017] [Indexed: 12/20/2022] Open
Abstract
Dysfunctional elimination of cell debris, and the role of opsonins such as pentraxins, is of interest regarding systemic lupus erythematosus (SLE) pathogenesis. Interferon (IFN)-α is typically elevated during SLE flares, and inhibits hepatocyte production of the pentraxin 'C-reactive protein' (CRP), partly explaining the poor correlation between CRP levels and SLE disease activity. The extrahepatically produced 'pentraxin 3' (PTX3) shares waste disposal functions with CRP, but has not been studied extensively in SLE. We analysed serum PTX3 in SLE, and assessed its interference with IFN-α in vitro. Serum samples from 243 patients with SLE and 100 blood donors were analysed regarding PTX3. Patient sera were analysed for IFN-α, and genotyped for three PTX3 single nucleotide polymorphisms reported previously to associate with PTX3 levels. Stimulated PTX3 release was assessed in the presence or absence of IFN-α in blood donor neutrophils and peripheral blood mononuclear cells (PBMC). Serum PTX3 was 44% lower in patients with SLE compared to blood donors (P < 0·0001) and correlated with leucocyte variables. Patients with undetectable IFN-α had 29% higher median PTX3 level than patients with detectable IFN-α (P = 0·01). PTX3 production by PBMC was inhibited by IFN-α, whereas neutrophil degranulation of PTX3 was increased. No differences in PTX3 levels were observed between the SNPs. In conclusion, median serum PTX3 is lower in SLE (especially when IFN-α is detectable) compared to blood donors. In addition to its potential consumption during waste disposal, it is plausible that IFN-α also attenuates PTX3 by inhibiting synthesis by PBMC and/or exhausting PTX3 storage in neutrophil granules.
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Affiliation(s)
- L Wirestam
- Rheumatology/Division of Neuro and Inflammation Sciences, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - H Enocsson
- Rheumatology/Division of Neuro and Inflammation Sciences, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - T Skogh
- Rheumatology/Division of Neuro and Inflammation Sciences, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - M L Eloranta
- Rheumatology, Department of Medical Sciences, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - L Rönnblom
- Rheumatology, Department of Medical Sciences, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - C Sjöwall
- Rheumatology/Division of Neuro and Inflammation Sciences, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - J Wetterö
- Rheumatology/Division of Neuro and Inflammation Sciences, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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28
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Vengen IT, Enger TB, Videm V, Garred P. Pentraxin 3, ficolin-2 and lectin pathway associated serine protease MASP-3 as early predictors of myocardial infarction - the HUNT2 study. Sci Rep 2017; 7:43045. [PMID: 28216633 PMCID: PMC5316974 DOI: 10.1038/srep43045] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 01/18/2017] [Indexed: 02/06/2023] Open
Abstract
The lectin complement pathway is suggested to play a role in atherogenesis. Pentraxin-3 (PTX3), ficolin-1, ficolin-2, ficolin-3, MBL/ficolin/collectin-associated serine protease-3 (MASP-3) and MBL/ficolin/collectin-associated protein-1 (MAP-1) are molecules related to activation of the lectin complement pathway. We hypothesized that serum levels of these molecules may be associated with the incidence of myocardial infarction (MI). In a Norwegian population-based cohort (HUNT2) where young to middle-aged relatively healthy Caucasians were followed up for a first-time MI from 1995-1997 through 2008, the 370 youngest MI patients were matched by age (range 29-62 years) and gender to 370 controls. After adjustments for traditional risk factors, the two highest tertiles of PTX3 and the highest tertiles of ficolin-2 and MASP-3 were associated with MI, with odds ratios (95% confidence interval) of 1.65 (1.10-2.47) and 2.79 (1.83-4.24) for PTX3, 1.55 (1.04-2.30) for ficolin-2, and 0.63 (0.043-0.94) for MASP-3. Ficolin-1, ficolin-3 and MAP-1 were not associated with MI. In a multimarker analysis of all associated biomarkers, only PTX3 and MASP-3 remained significant. PTX-3 and MASP-3 enhanced prediction of MI compared to the traditional Framingham risk score alone (AUC increased from 0.64 to 0.68, p = 0.006). These results support the role of complement-dependent inflammation in the pathophysiology of cardiovascular disease.
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Affiliation(s)
- Inga Thorsen Vengen
- Department of Laboratory Medicine, Children’s and Women’s Health, Norwegian University of Science and Technology, Trondheim, Norway
| | - Tone Bull Enger
- Department of Laboratory Medicine, Children’s and Women’s Health, Norwegian University of Science and Technology, Trondheim, Norway
| | - Vibeke Videm
- Department of Laboratory Medicine, Children’s and Women’s Health, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Immunology and Transfusion Medicine, St Olavs University Hospital, Trondheim, Norway
| | - Peter Garred
- Laboratory of Molecular Medicine, Department of Clinical Immunology, Sect. 7631, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Trondheim, Norway
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Zhu H, Yu W, Xie Y, Zhang H, Bi Y, Zhu D. Association of Pentraxin 3 Gene Polymorphisms with Susceptibility to Diabetic Nephropathy. Med Sci Monit 2017; 23:428-436. [PMID: 28119515 PMCID: PMC5289099 DOI: 10.12659/msm.902783] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is a major microvascular complication of diabetes. Pentraxin 3 (PTX3) is a member of the acute-phase reactants superfamily and altered plasma levels of PTX3 are associated with DN. We performed a case-control study to analyze the relationship between single nucleotide polymorphisms (SNPs) in PTX3 and the risk for DN in patients with type 2 diabetes. MATERIAL AND METHODS The study included 135 DN patients, 155 non-diabetic nephropathy (NDN) patients, and 152 normal controls (NC) (N=442). We genotyped eight PTX3 SNPs (rs2305619, rs2120243, rs1456099, rs7634847, rs1840680, rs2316706, rs2316709, and rs7616177) using the ABI PRISM SNapshot method. RESULTS The genotype frequencies of rs2305619 and rs2120243 differed significantly between the DN and the NDN groups (p=0.017 and p=0.033, respectively). Patients with the GG variant of rs2305619 showed 4.078-fold higher susceptibility to DN than those with the AA variant (OR=4.078, 95% CI=1.370-12.135, p=0.012); patients with the AA variant of rs2120243 had a lower risk of developing DN (OR=0.213, 95% CI=0.055-0.826, p=0.025). Haplotype analysis showed an association between the CAGGG haplotype in block 1 with DN (p=0.0319). CONCLUSIONS Our findings suggested that PTX3 polymorphisms were associated with an increased risk for DN in Chinese patients with type 2 diabetes.
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Affiliation(s)
- Hong Zhu
- Department of Endocrinology, Drum Tower Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, China (mainland).,Department of Endocrinology and Metabolism, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Weihui Yu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Yuanyuan Xie
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Hailing Zhang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Yan Bi
- Department of Endocrinology, Drum Tower Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
| | - Dalong Zhu
- Department of Endocrinology, Drum Tower Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
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30
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Abstract
The innate immune system represents the first line of defense against pathogens and comprises both a cellular and a humoral arm. Fluid-phase pattern recognition molecules (PRMs), which include collectins, ficolins, and pentraxins, are key components of the humoral arm of innate immunity and are expressed by a variety of cells, including myeloid, epithelial, and endothelial cells, mainly in response to infectious and inflammatory conditions. Soluble PRMs share basic multifunctional properties including activation and regulation of the complement cascade, opsonization of pathogens and apoptotic cells, regulation of leukocyte extravasation, and fine-tuning of inflammation. Therefore, soluble PRMs are part of the immune response and retain antibody-like effector functions. Here, we will review the expression and general function of soluble PRMs, focusing our attention on the long pentraxin PTX3.
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Badr EAE, Hamoda GE, Tayel SI, Elshayeb EI. Association of genetic variants of pentraxin 3 rs3816527 with hypertension in Chronic kidney disease patients. Mol Cell Biochem 2016; 425:203-212. [PMID: 27838804 DOI: 10.1007/s11010-016-2874-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/02/2016] [Indexed: 01/01/2023]
Abstract
Hypertension is a nearly constant feature and both a cause and a consequence of chronic kidney disease (CKD). Atherosclerotic lesions showed a marked expression of pentraxin 3 on the surface of lumen and in the plaque. The aim was to assess the correlation of exon 2 of pentraxin 3 gene SNP rs3816527 with hypertension with CKD. The study was conducted on 110 CKD patients (60 patients with and 50 patients without hypertension) and 40 healthy subjects as control. Laboratory investigations including the measurement of fasting blood glucose, lipid profile, and indices of oxidative stress, liver function tests, and renal function tests were done. Genotyping of pentraxin 3 gene SNP rs3816527 was done by real-time PCR. There was a significant difference between CKD patients with hypertension and the subjects in the control group regarding systolic and diastolic BP, urea, creatinine, GFR, TG, cholesterol, LDL, HDL, and total antioxidant levels (p < 0.001). There is a statistically significant difference between CKD patients with hypertension and the other studied groups regarding the frequencies of AA genotype and A allele of exon 2 SNP of pentraxin 3 gene compared to CC genotype and C allele (wild type) (p < 0.001), while there was significant difference between CKD patients without hypertension and control (p > 0.05). Pentraxin 3 AA genotype SNP rs3816527 can be considered as a potential biomarker and a risk factor for CKD patients, especially hypertensive patients, and specifically as an independent predictor of hypertension in CKD.
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Affiliation(s)
- Eman A E Badr
- Department of Medical Biochemistry, Faculty of Medicine, Menoufia University, Shebin ElKom, Menoufia, 32511, Egypt
| | - Ghada E Hamoda
- Department of Medical Biochemistry, Faculty of Medicine, Menoufia University, Shebin ElKom, Menoufia, 32511, Egypt
| | - Safaa I Tayel
- Department of Medical Biochemistry, Faculty of Medicine, Menoufia University, Shebin ElKom, Menoufia, 32511, Egypt.
| | - Elsayed I Elshayeb
- Department of Internal Medicine, Faculty of Medicine, Menoufia University, Shebin ElKom, Egypt
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Zhang X, Ding W. Association of Genetic Variants in Pentraxin 3 Gene with Ankylosing Spondylitis. Med Sci Monit 2016; 22:2911-6. [PMID: 27538101 PMCID: PMC4999015 DOI: 10.12659/msm.896562] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Pentraxin 3 is considered to play an important role in immune and inflammatory reaction. This study aimed to detect the effect of pentraxin3 gene (PTX3) polymorphisms on ankylosing spondylitis (AS) risk. Material/Methods The genotyping of PTX3 polymorphisms in 101 AS patients and 93 controls was conducted by allelic discrimination assay and the genotype distribution was assessed for Hardy-Weinberg equilibrium (HWE). The differences of genotype, allele, haplotype, and some basic indexes were compared by χ2 test. Odds ratio (OR) and 95% confidence interval (95%CI) were also calculated by χ2 test and were used to evaluate the association intensity between gene polymorphisms and disease. Haploview software was used to analyze the linkage disequilibrium (LD) and haplotypes of PTX3 polymorphisms. Results CC genotype of rs3816527 had an obviously higher frequency in cases than in controls and had a positive effect on AS occurrence (OR=3.14, 95%CI=1.04–9.52), and the same was true of the C allele in rs3816527. For rs3845978, CT genotype showed a significant frequency difference between the case and control groups (P=0.03) and people with genotypes carrying the T allele developed AS earlier (OR=1.94, 95%CI=1.09–3.47), and the same was found in the analysis of the T allele. G-C-T haplotype dramatically increased the risk of AS, as may A-C-C haplotype. Conclusions In PTX3 polymorphisms rs3816527 and rs3845978 were found to be associated with AS, but rs2305619 was not.
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Affiliation(s)
- Xu Zhang
- Department of Spinal Surgery, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Wenyuan Ding
- Department of Spinal Surgery, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
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The pentraxins PTX3 and SAP in innate immunity, regulation of inflammation and tissue remodelling. J Hepatol 2016; 64:1416-27. [PMID: 26921689 PMCID: PMC5414834 DOI: 10.1016/j.jhep.2016.02.029] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/09/2015] [Accepted: 02/18/2016] [Indexed: 12/20/2022]
Abstract
Pentraxins are a superfamily of fluid phase pattern recognition molecules conserved in evolution and characterized by a cyclic multimeric structure. C-reactive protein (CRP) and serum amyloid P component (SAP) constitute the short pentraxin arm of the superfamily. CRP and SAP are produced in the liver in response to IL-6 and are acute phase reactants in humans and mice respectively. In addition SAP has been shown to affect tissue remodelling and fibrosis by stabilizing all types of amyloid fibrils and by regulating monocyte to fibrocyte differentiation. Pentraxin 3 (PTX3) is the prototype of the long pentraxin arm. Gene targeted mice and genetic and epigenetic studies in humans suggest that PTX3 plays essential non-redundant roles in innate immunity and inflammation as well as in tissue remodelling. Recent studies have revealed the role of PTX3 as extrinsic oncosuppressor, able to tune cancer-related inflammation. In addition, at acidic pH PTX3 can interact with provisional matrix components promoting inflammatory matrix remodelling. Thus acidification during tissue repair sets PTX3 in a tissue remodelling and repair mode, suggesting that matrix and microbial recognition are common, ancestral features of the humoral arm of innate immunity.
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Bonacina F, Barbieri SS, Cutuli L, Amadio P, Doni A, Sironi M, Tartari S, Mantovani A, Bottazzi B, Garlanda C, Tremoli E, Catapano AL, Norata GD. Vascular pentraxin 3 controls arterial thrombosis by targeting collagen and fibrinogen induced platelets aggregation. Biochim Biophys Acta Mol Basis Dis 2016; 1862:1182-90. [PMID: 26976330 PMCID: PMC4856734 DOI: 10.1016/j.bbadis.2016.03.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 02/17/2016] [Accepted: 03/10/2016] [Indexed: 02/08/2023]
Abstract
Aim The long pentraxin PTX3 plays a non-redundant role during acute myocardial infarction, atherosclerosis and in the orchestration of tissue repair and remodeling during vascular injury, clotting and fibrin deposition. The aim of this work is to investigate the molecular mechanisms underlying the protective role of PTX3 during arterial thrombosis. Methods and results PTX3 KO mice transplanted with bone marrow from WT or PTX3 KO mice presented a significant reduction in carotid artery blood flow following FeCl3 induced arterial thrombosis (− 80.36 ± 11.5% and − 95.53 ± 4.46%), while in WT mice transplanted with bone marrow from either WT or PTX3 KO mice, the reduction was less dramatic (− 45.55 ± 1.37% and − 53.39 ± 9.8%), thus pointing to a protective effect independent of a hematopoietic cell's derived PTX3. By using P-selectin/PTX3 double KO mice, we further excluded a role for P-selectin, a target of PTX3 released by neutrophils, in vascular protection played by PTX3. In agreement with a minor role for hematopoietic cell-derived PTX3, platelet activation (assessed by flow cytometric expression of markers of platelet activation) was similar in PTX3 KO and WT mice as were haemostatic properties. Histological analysis indicated that PTX3 localizes within the thrombus and the vessel wall, and specific experiments with the N-terminal and the C-terminal PTX3 domain showed the ability of PTX3 to selectively dampen either fibrinogen or collagen induced platelet adhesion and aggregation. Conclusion PTX3 interacts with fibrinogen and collagen and, by dampening their pro-thrombotic effects, plays a protective role during arterial thrombosis. PTX3 deficiency in non-hematopoietic cells results in increased arterial thrombosis. Defects in the PTX3-P-selectin axis are not responsible for increased arterial thrombosis. PTX3 might limit the pro-thrombotic potential of fibrinogen and collagen on platelets adhesion and aggregation.
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Affiliation(s)
- F Bonacina
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - S S Barbieri
- IRCCS, Centro Cardiologico Monzino, Milan, Italy
| | - L Cutuli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - P Amadio
- IRCCS, Centro Cardiologico Monzino, Milan, Italy
| | - A Doni
- IRCCS, Humanitas Research Foundation, Bruzzano, Milan, Italy
| | - M Sironi
- IRCCS, Humanitas Research Foundation, Bruzzano, Milan, Italy
| | - S Tartari
- IRCCS, Humanitas Research Foundation, Bruzzano, Milan, Italy
| | - A Mantovani
- IRCCS, Humanitas Research Foundation, Bruzzano, Milan, Italy
| | - B Bottazzi
- IRCCS, Humanitas Research Foundation, Bruzzano, Milan, Italy
| | - C Garlanda
- IRCCS, Humanitas Research Foundation, Bruzzano, Milan, Italy
| | - E Tremoli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCCS, Centro Cardiologico Monzino, Milan, Italy
| | - A L Catapano
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCCS Multimedica, Milan, Italy.
| | - G D Norata
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; SISA Centre for the Study of Atherosclerosis, Bassini Hospital, Cinisello B, Milan, Italy; William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University, London, UK.
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Mohamed AR, El-Hadidy WF, Mannaa HF. Assessment of the prophylactic role of aspirin and/or clopidogrel on experimentally induced acute myocardial infarction in hypercholesterolemic rats. Drugs R D 2016; 14:233-9. [PMID: 25231707 PMCID: PMC4269823 DOI: 10.1007/s40268-014-0059-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Introduction Hyperlipidemia is a risk factor for cardiovascular diseases such as acute infarction. Inflammation and platelet activation are critical phenomena in acute myocardial infarction (AMI). Aim The aim of the study was to assess potential protective effects of aspirin and/or clopidogrel on AMI in hypercholesterolemic rats. Methods Forty adult male Wistar rats were divided into five groups (eight rats in each). Group I included normal healthy rats. The other 32 rats were subjected to induction of hypercholesterolemia by high-fat diet for 3 weeks, followed by induction of AMI by subcutaneous injections of isoproterenol (85 mg/kg/day, for 2 days). Rats were divided into the following groups: group II, rats with induced hypercholesterolemia and AMI; group III, hypercholesterolemic rats that received aspirin 30 mg/kg/day orally for 7 days before induction of AMI; group IV, hypercholesterolemic rats that received clopidogrel 10 mg/kg/day orally for 7 days before induction of AMI; and group V, hypercholesterolemic rats treated with both aspirin and clopidogrel in the same doses for 7 days before induction of AMI. Serum levels of pentraxin 3 (PTX3), transforming growth factor-β1 (TGF-β1), creatine kinase (CK), lactate dehydrogenase (LDH), total cholesterol and triglycerides were estimated in all rats. Results Isoproterenol-induced AMI in hypercholesterolemic rats was associated with an increase in serum levels of PTX3, TGF-β1, CK and LDH. Aspirin and/or clopidogrel pretreatment for 1 week led to a reduction of their levels as compared with non-treated rats. However, the reduction caused by combination of aspirin and clopidogrel was more than that caused by each drug separately. Conclusion Combination of aspirin and clopidogrel could be a therapeutic option for hypercholesterolemic patients to attenuate the complex vascular inflammatory process which is a key step in the setting of AMI.
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Affiliation(s)
- Adham R. Mohamed
- Physiology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Wessam F. El-Hadidy
- Pharmacology and Experimental Therapeutics Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Hazem F. Mannaa
- Medical Biochemistry Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Carmo RF, Aroucha D, Vasconcelos LRS, Pereira LMMB, Moura P, Cavalcanti MSM. Genetic variation in PTX3 and plasma levels associated with hepatocellular carcinoma in patients with HCV. J Viral Hepat 2016; 23:116-22. [PMID: 26400151 DOI: 10.1111/jvh.12472] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 07/27/2015] [Indexed: 12/12/2022]
Abstract
Hepatitis C virus (HCV) is the main cause of chronic liver disease, cirrhosis and hepatocellular carcinoma (HCC) worldwide. The risk to develop HCC increases with the severity of liver inflammation and fibrosis. Long pentraxin 3 (PTX3) is a soluble pattern-recognition receptor produced by phagocytes and nonimmune cells at sites of inflammation or injury. The aim of the present study was to determine the association of PTX3 polymorphisms and its plasma levels with HCC occurrence among patients with HCV. Samples from 524 patients with chronic hepatitis C were evaluated in this study. Two polymorphisms (rs1840680 and rs2305619) in the PTX3 gene were determined by real-time PCR. PTX3 plasma levels were measured by Enzyme-linked Immunosorbent Assay (ELISA). Our data show a significant association between PTX3 polymorphisms and HCC occurrence in univariate and multivariate analysis (P = 0.024). Patients with HCC had higher PTX3 plasma levels compared to individuals with mild or severe fibrosis (P < 0.0001 and P = 0.002, respectively). In addition, PTX3 rs2305619 polymorphism and plasma levels were correlated with Child-Pugh scores B and C in HCC individuals. PTX3 seems to be a risk factor for HCC occurrence in chronic hepatitis C. This is the first study that evaluates PTX3 in the context of hepatitis C.
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Affiliation(s)
- R F Carmo
- Universidade Federal do Vale do São Francisco (UNIVASF), Petrolina, Brazil.,Rede Nordeste de Biotecnologia (RENORBIO), Recife, Brazil
| | - D Aroucha
- Instituto do Fígado de Pernambuco (IFP), Recife, Brazil.,Universidade de Pernambuco (UPE), Recife, Brazil
| | - L R S Vasconcelos
- Instituto do Fígado de Pernambuco (IFP), Recife, Brazil.,Centro de Pesquisas Aggeu Magalhães (CPqAM/FIOCRUZ), Recife, Brazil
| | - L M M B Pereira
- Instituto do Fígado de Pernambuco (IFP), Recife, Brazil.,Universidade de Pernambuco (UPE), Recife, Brazil
| | - P Moura
- Universidade de Pernambuco (UPE), Recife, Brazil
| | - M S M Cavalcanti
- Rede Nordeste de Biotecnologia (RENORBIO), Recife, Brazil.,Universidade de Pernambuco (UPE), Recife, Brazil
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Foo SS, Reading PC, Jaillon S, Mantovani A, Mahalingam S. Pentraxins and Collectins: Friend or Foe during Pathogen Invasion? Trends Microbiol 2015; 23:799-811. [PMID: 26482345 PMCID: PMC7127210 DOI: 10.1016/j.tim.2015.09.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 09/07/2015] [Accepted: 09/22/2015] [Indexed: 12/24/2022]
Abstract
Innate immunity serves as the frontline defence against invading pathogens. Despite decades of research, new insights are constantly challenging our understanding of host-elicited immunity during microbial infections. Recently, two families of humoral innate immune proteins, pentraxins and collectins, have become a major focus of research in the field of innate immunity. Pentraxins and collectins are key players in activating the humoral arm of innate immunity, taking centre stage in immunoregulation and disease modulation. However, increasing evidence suggests that pentraxins and collectins can also mediate pathogenic effects during some infections. Herein, we discuss the protective and pathogenic effects of pentraxins and collectins, as well as their therapeutic significance.
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Affiliation(s)
- Suan-Sin Foo
- Institute for Glycomics, Griffith University, Gold Coast, QLD 4222, Australia
| | - Patrick C Reading
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria 3000, Australia
| | - Sébastien Jaillon
- Humanitas Clinical and Research Center, Department of Inflammation and Immunology, 20089, Rozzano, Milano, Italy
| | - Alberto Mantovani
- Humanitas Clinical and Research Center, Department of Inflammation and Immunology, 20089, Rozzano, Milano, Italy; Humanitas University, 20089, Rozzano, Milano, Italy
| | - Suresh Mahalingam
- Institute for Glycomics, Griffith University, Gold Coast, QLD 4222, Australia.
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Garlanda C, Jaillon S, Doni A, Bottazzi B, Mantovani A. PTX3, a humoral pattern recognition molecule at the interface between microbe and matrix recognition. Curr Opin Immunol 2015; 38:39-44. [PMID: 26650391 DOI: 10.1016/j.coi.2015.11.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/16/2015] [Indexed: 12/21/2022]
Abstract
Innate immunity consists of a cellular and a humoral arm. PTX3 is a fluid patter recognition molecule (PRM) with antibody-like properties. Gene targeted mice and genetic associations in humans suggest that PTX3 plays a non-redundant role in resistance against selected pathogens (e.g. Aspergillus fumigatus, Pseudomonas aeruginosa, uropathogenic Escherichia coli) and in the regulation of inflammation. PTX3 acts as an extrinsic oncosuppressor by taming complement elicited tumor-promoting inflammation. Recent results indicate that, by interacting with provisional matrix components, PTX3 contributes to the orchestration of tissue repair. An acidic pH sets PTX3 in a tissue repair mode, while retaining anti-microbial recognition. Based on these data and scattered information on humoral PRM and matrix components, we surmise that matrix and microbial recognition are related functions in evolution.
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Affiliation(s)
- Cecilia Garlanda
- Humanitas Clinical Research Center, via Manzoni 56, 20089, Rozzano (Milano), Italy
| | - Sebastien Jaillon
- Humanitas Clinical Research Center, via Manzoni 56, 20089, Rozzano (Milano), Italy
| | - Andrea Doni
- Humanitas Clinical Research Center, via Manzoni 56, 20089, Rozzano (Milano), Italy
| | - Barbara Bottazzi
- Humanitas Clinical Research Center, via Manzoni 56, 20089, Rozzano (Milano), Italy
| | - Alberto Mantovani
- Humanitas Clinical Research Center, via Manzoni 56, 20089, Rozzano (Milano), Italy; Humanitas University, via Manzoni 56, 20089 Rozzano, Italy.
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Bastrup-Birk S, Munthe-Fog L, Skjoedt MO, Ma YJ, Nielsen H, Køber L, Nielsen OW, Iversen K, Garred P. Pentraxin-3 level at admission is a strong predictor of short-term mortality in a community-based hospital setting. J Intern Med 2015; 277:562-72. [PMID: 25143177 DOI: 10.1111/joim.12294] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The pattern recognition molecule pentraxin-3 (PTX3) is a novel potential marker of prognosis, as elevated levels are associated with both disease severity and mortality in patients with a wide range of conditions. However, the usefulness of PTX3 as a prognostic biomarker in a general hospital setting is unknown. PATIENTS AND METHODS The study cohort consisted of 1326 unselected, consecutive patients (age >40 years) admitted to a community hospital in Copenhagen, Denmark. Patients were followed until death or for a median of 11.5 years after admission. The main outcome measure was all-cause mortality. Serum samples collected from patients at admission and from 192 healthy control subjects were quantified for PTX3 level by enzyme-linked immunosorbent assay. RESULTS PTX3 was elevated in patients (median 3.7 ng mL(-1) , range 0.5-209.8) compared with healthy nonhospitalized subjects (median 3.5 ng mL(-1) , range 0.0-8.3; P = 0.0003). Elevated PTX3 levels, defined as above the 95th percentile of the concentration in healthy subjects, were associated with increased overall mortality during the study (P < 0.0001). This increase in mortality was greatest in the short term, with an unadjusted hazard ratio (HR) of 6.4 [95% confidence interval (CI) 3.8-11.0] at 28 days after admission, compared to 1.7 (95% CI 1.4-2.0) at the end of follow-up. These results were still significant after adjustment for age, gender and glomerular filtration rate: adjusted HR of 5.0 (95% CI 2.9-8.8) and 1.4 (95% CI 1.2-1.8), respectively. CONCLUSION These results suggest that PTX3 could be a widely applicable marker of short-term mortality in hospitalized patients and may be useful in the initial risk stratification.
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Affiliation(s)
- S Bastrup-Birk
- Laboratory of Molecular Medicine, Department of Clinical Immunology, Rigshospitalet, Copenhagen, Denmark
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Prognostic value of pentraxin-3 level in patients with STEMI and its relationship with heart failure and markers of oxidative stress. DISEASE MARKERS 2015; 2015:159051. [PMID: 25922551 PMCID: PMC4397490 DOI: 10.1155/2015/159051] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/09/2015] [Accepted: 03/10/2015] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Pentraxin-3 (PTX3) appears to have a cardioprotective effect through a positive influence against postreperfusion damage. This study assesses the prognostic value of PTX3 level and its relationship with clinical parameters and markers of oxidative stress and nitric oxide metabolism in patients with ST-elevation myocardial infarction (STEMI). METHODS Plasma/serum levels of several biomarkers of inflammation and oxidative stress and nitrite/nitrate were assessed upon admission and 24 h after STEMI onset in patients treated by primary percutaneous coronary intervention. RESULTS ROC analysis showed that plasma PTX3 at 24 h was a strong predictor of 30-day and 1-year mortality and independent predictor of combined end-point of left ventricle dysfunction or mortality in 1 year. The inflammatory response expressed by PTX3 had a significant relationship with age, heart failure, infarct size, impaired flow in the infarct-related artery, and renal function and positively correlated with neopterin, TNF-α, 8-hydroxy-2'-deoxyguanosine, and nitrite/nitrate. CONCLUSIONS Plasma PTX3 at 24 h after STEMI onset is a strong predictor of 30-day and 1-year mortality. PTX3 as a single biomarker is comparable with currently used scoring systems (TIMI or GRACE) or B-type natriuretic peptide. PTX3 is also an independent predictor of combined end-point of left ventricle dysfunction or mortality in 1 year.
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Zandifar A, Iraji N, Taheriun M, Tajaddini M, Javanmard SH. Association of the long pentraxin PTX3 gene polymorphism (rs3816527) with migraine in an Iranian population. J Neurol Sci 2015; 349:185-9. [PMID: 25604633 DOI: 10.1016/j.jns.2015.01.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 12/25/2014] [Accepted: 01/10/2015] [Indexed: 11/25/2022]
Abstract
BACKGROUND Migraine is a common neurovascular disorder with multifactorial and polygenic inheritance. It has been shown that migraine may be a form of sterile neurogenic inflammation. Pentaxins 3 (PTX3) has been detected in brain during inflammatory responses. The aim of our study was to investigate the association of rs3816527 polymorphism of the PTX3 gene and migraine in an Iranian population. METHOD We included 103 newly diagnosed migraine patients and 148 healthy subjects as control group. Genomic DNA samples extracted from the peripheral blood and genotypes of PTX3 rs3816527 gene polymorphism were determined. The patients filled out HIT-6 questionnaire as a scale to evaluate the severity of headache. RESULTS The genotype frequency of PTX3 was significantly different between the migraine patients and the control subjects. CC variant homozygote genotype was statistically more frequent in the patients than in the controls (P<0.05; OR=1.74, 95% CI=1.04-2.94). Also the C allele was not significantly more frequent in the patients (P=0.096; OR=1.27, 95% CI=0.88-1.85). A separate analysis in male and female subjects showed no significant differences between the different genotypes and phenotypes of PTX3 rs3816527 gene and susceptibility to migraine in female subjects. Total HIT-6 score was significantly different between three PTX3 genotypes (P=0.008). CONCLUSION In conclusion our results showed the association between the PTX3 rs3816527 gene polymorphism with susceptibility to migraine only in the male patients. Also total HIT-6 scores as a scale for assessment of the severity were related to the PTX3 rs3816527 gene polymorphism. But this relation was not established by headache frequency.
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Affiliation(s)
- Alireza Zandifar
- Applied Physiology Research Center, Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran; Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Niloufar Iraji
- Applied Physiology Research Center, Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran; Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Taheriun
- Applied Physiology Research Center, Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran; Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohamadhasan Tajaddini
- Applied Physiology Research Center, Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran; School of Pharmacy, Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shaghayegh Haghjooy Javanmard
- Applied Physiology Research Center, Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran.
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Jaillon S, Bonavita E, Gentile S, Rubino M, Laface I, Garlanda C, Mantovani A. The long pentraxin PTX3 as a key component of humoral innate immunity and a candidate diagnostic for inflammatory diseases. Int Arch Allergy Immunol 2014; 165:165-78. [PMID: 25531094 DOI: 10.1159/000368778] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The innate immune system is composed of a cellular arm and a humoral arm. Components of the humoral arm include members of the complement cascade and soluble pattern recognition molecules (PRMs). These PRMs recognize pathogen-associated molecular patterns and are functional ancestors of antibodies, playing a role in complement activation, opsonization and agglutination. Pentraxins consist of a set of multimeric soluble proteins and represent the prototypic components of humoral innate immunity. The prototypic long pentraxin PTX3 is highly conserved in evolution and produced by somatic and innate immune cells after proinflammatory stimuli. PTX3 interacts with a set of self, nonself and modified self ligands and exerts essential roles in innate immunity, inflammation control and matrix deposition. In addition, translational studies suggest that PTX3 may be a useful biomarker of human pathologies complementary to C-reactive protein. In this study, we will review the general functions of pentraxins in innate immunity and inflammation, focusing our attention on the prototypic long pentraxin PTX3.
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Parra S, Castro A, Masana L. The pleiotropic role of HDL in autoimmune diseases. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2014; 27:97-106. [PMID: 25444650 DOI: 10.1016/j.arteri.2014.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 09/02/2014] [Accepted: 09/03/2014] [Indexed: 01/11/2023]
Abstract
As is widely known, the classic function of HDL is reverse cholesterol transport (RCT), thus removing cholesterol from peripheral tissues. Early epidemiological studies, such as Framingham's, stated that increased HDL levels were associated with a significant decrease in relative risk for cardiovascular disease (CVD) mortality. However, those with heightened expectations in recent years for the development of therapeutic targets to increase HDL levels have been disappointed, because efforts have demonstrated the opposite effect on cardiovascular and global mortality. However, in contrast, studies have highlighted the complexity and the intriguing role of HDL in different pathological conditions, such as infections, neoplasms, and autoimmune diseases. In this review an attempt is made to summarize some biological pathways that link HDL function with the immune system, and its possible clinical repercussions in autoimmune diseases.
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Affiliation(s)
- Sandra Parra
- Internal Medicine, Sant Joan University Hospital, Reus, Spain.
| | - Antoni Castro
- Internal Medicine, Sant Joan University Hospital, Reus, Spain
| | - Luis Masana
- Internal Medicine, Sant Joan University Hospital, Reus, Spain
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Abstract
Epidemiological research over the last 50 years has discovered a plethora of biomarkers (including molecules, traits or other diseases) that associate with coronary artery disease (CAD) risk. Even the strongest association detected in such observational research precludes drawing conclusions about the causality underlying the relationship between biomarker and disease. Mendelian randomization (MR) studies can shed light on the causality of associations, i.e whether, on the one hand, the biomarker contributes to the development of disease or, on the other hand, the observed association is confounded by unrecognized exogenous factors or due to reverse causation, i.e. due to the fact that prevalent disease affects the level of the biomarker. However, conclusions from a MR study are based on a number of important assumptions. A prerequisite for such studies is that the genetic variant employed affects significantly the biomarker under investigation but has no effect on other phenotypes that might confound the association between the biomarker and disease. If this biomarker is a true causal risk factor for CAD, genotypes of the variant should associate with CAD risk in the direction predicted by the association of the biomarker with CAD. Given a random distribution of exogenous factors in individuals carrying respective genotypes, groups represented by the genotypes are highly similar except for the biomarker of interest. Thus, the genetic variant converts into an unconfounded surrogate of the respective biomarker. This scenario is nicely exemplified for LDL cholesterol. Almost every genotype found to increase LDL cholesterol level by a sufficient amount has also been found to increase CAD risk. Pending a number of conditions that needed to be fulfilled by the genetic variant under investigation (e.g. no pleiotropic effects) and the experimental set-up of the study, LDL cholesterol can be assumed to act as the functional component that links genotypes and CAD risk and, more importantly, it can be assumed that any modulation of LDL cholesterol-by whatever mechanism-would have similar effects on disease risk. Therefore, MR analysis has tremendous potential for identifying therapeutic targets that are likely to be causal for CAD. This review article discusses the opportunities and challenges of MR studies for CAD, highlighting several examples that involved multiple biomarkers, including various lipid and inflammation traits as well as hypertension, diabetes mellitus, and obesity.
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Affiliation(s)
- Henning Jansen
- Deutsches Herzzentrum München and Technische Universität München, Munich, Germany DZHK (German Research Centre for Cardiovascular Research), Munich Heart Alliance, Munich, Germany
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK National Institute for Health Research Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Heribert Schunkert
- Deutsches Herzzentrum München and Technische Universität München, Munich, Germany DZHK (German Research Centre for Cardiovascular Research), Munich Heart Alliance, Munich, Germany
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The Humoral Pattern Recognition Molecule PTX3 Is a Key Component of Innate Immunity against Urinary Tract Infection. Immunity 2014; 40:621-32. [DOI: 10.1016/j.immuni.2014.02.015] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 02/14/2014] [Indexed: 11/17/2022]
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Affiliation(s)
- Sang Eun Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital
| | - Hyo-Soo Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital
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