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Cheung KC, Ma J, Wang L, Chen X, Fanti S, Li M, Azevedo LR, Gosselet F, Shen H, Zheng X, Lu A, Jia W. CD31 orchestrates metabolic regulation in autophagy pathways of rheumatoid arthritis. Pharmacol Res 2024; 207:107346. [PMID: 39127263 DOI: 10.1016/j.phrs.2024.107346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/18/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
Synovitis is characterized by a distinctmetabolic profile featuring the accumulation of lactate, a byproduct of cellular metabolism within inflamed joints. This study reveals that the activation of the CD31 signal by lactate instigates a metabolic shift, specifically initiating endothelial cell autophagy. This adaptive process plays a pivotal role in fulfilling the augmented energy and biomolecule demands associated with the formation of new blood vessels in the synovium of Rheumatoid Arthritis (RA). Additionally, the amino acid substitutions in the CD31 cytoplasmic tail at the Y663F and Y686F sites of the immunoreceptor tyrosine-based inhibitory motifs (ITIM) alleviate RA. Mechanistically, this results in the downregulation of glycolysis and autophagy pathways. These findings significantly advance our understanding of potential therapeutic strategies for modulating these processes in synovitis and, potentially, other autoimmune diseases.
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Affiliation(s)
- Kenneth Cp Cheung
- Phenome Research Center, Hong Kong Baptist University School of Chinese Medicine, Hong Kong, China.
| | - Jiao Ma
- Phenome Research Center, Hong Kong Baptist University School of Chinese Medicine, Hong Kong, China
| | - Lu Wang
- Phenome Research Center, Hong Kong Baptist University School of Chinese Medicine, Hong Kong, China
| | - Xingxuan Chen
- Phenome Research Center, Hong Kong Baptist University School of Chinese Medicine, Hong Kong, China
| | - Silvia Fanti
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Mingzhang Li
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Loiola Rodrigo Azevedo
- Faculté de Sciences Jean Perrin, Blood-brain barrier laboratory, Université d'Artois, France
| | - Fabien Gosselet
- Faculté de Sciences Jean Perrin, Blood-brain barrier laboratory, Université d'Artois, France
| | - Hao Shen
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Xiaojiao Zheng
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Aiping Lu
- Phenome Research Center, Hong Kong Baptist University School of Chinese Medicine, Hong Kong, China
| | - Wei Jia
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China; Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
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2
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Demirci H, Popovic S, Dittmayer C, Yilmaz DE, El-Shimy IA, Mülleder M, Hinze C, Su M, Mertins P, Kirchner M, Osmanodja B, Paliege A, Budde K, Amann K, Persson PB, Mutig K, Bachmann S. Immunosuppression with cyclosporine versus tacrolimus shows distinctive nephrotoxicity profiles within renal compartments. Acta Physiol (Oxf) 2024; 240:e14190. [PMID: 38884453 DOI: 10.1111/apha.14190] [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: 05/18/2024] [Accepted: 06/04/2024] [Indexed: 06/18/2024]
Abstract
AIM Calcineurin inhibitors (CNIs) are the backbone for immunosuppression after solid organ transplantation. Although successful in preventing kidney transplant rejection, their nephrotoxic side effects contribute to allograft injury. Renal parenchymal lesions occur for cyclosporine A (CsA) as well as for the currently favored tacrolimus (Tac). We aimed to study whether chronic CsA and Tac exposures, before reaching irreversible nephrotoxic damage, affect renal compartments differentially and whether related pathogenic mechanisms can be identified. METHODS CsA and Tac were administered chronically in wild type Wistar rats using osmotic minipumps over 4 weeks. Functional parameters were controlled. Electron microscopy, confocal, and 3D-structured illumination microscopy were used for histopathology. Clinical translatability was tested in human renal biopsies. Standard biochemical, RNA-seq, and proteomic technologies were applied to identify implicated molecular pathways. RESULTS Both drugs caused significant albeit differential damage in vasculature and nephron. The glomerular filtration barrier was more affected by Tac than by CsA, showing prominent deteriorations in endothelium and podocytes along with impaired VEGF/VEGFR2 signaling and podocyte-specific gene expression. By contrast, proximal tubule epithelia were more severely affected by CsA than by Tac, revealing lysosomal dysfunction, enhanced apoptosis, impaired proteostasis and oxidative stress. Lesion characteristics were confirmed in human renal biopsies. CONCLUSION We conclude that pathogenetic alterations in the renal compartments are specific for either treatment. Considering translation to the clinical setting, CNI choice should reflect individual risk factors for renal vasculature and tubular epithelia. As a step in this direction, we share protein signatures identified from multiomics with potential pathognomonic relevance.
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Affiliation(s)
- Hasan Demirci
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
- Department of Cell- and Neurobiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Suncica Popovic
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Carsten Dittmayer
- Department of Neuropathology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Duygu Elif Yilmaz
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Ismail Amr El-Shimy
- Molecular Epidemiology Unit, Berlin Institute of Health, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Mülleder
- Core Facility-High-Throughput Mass Spectrometry, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Christian Hinze
- Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
| | - Mingzhen Su
- Department of Cell- and Neurobiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Philipp Mertins
- Core Unit Proteomics, Berlin Institute of Health at Charité, Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
| | - Marieluise Kirchner
- Core Unit Proteomics, Berlin Institute of Health at Charité, Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
| | - Bilgin Osmanodja
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Alexander Paliege
- Department of Nephrology, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Germany
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Kerstin Amann
- Department of Nephropathology, Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Pontus B Persson
- Department of Translational Physiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Kerim Mutig
- Department of Translational Physiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Sebastian Bachmann
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
- Department of Cell- and Neurobiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
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3
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Sim JH, Bell R, Feng Z, Chyou S, Shipman WD, Kataru RP, Ivashkiv L, Mehrara B, Lu TT. Langerhans cells regulate immunity in adulthood by regulating postnatal dermal lymphatic development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.12.603312. [PMID: 39071369 PMCID: PMC11275746 DOI: 10.1101/2024.07.12.603312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
The communication between skin and draining lymph nodes is crucial for well-regulated immune responses to skin insults. The skin sends antigen and other signals via lymphatic vessels to regulate lymph node activity, and regulating dermal lymphatic function is another means to control immunity. Here, we show that Langerhans cells (LCs), epidermis-derived antigen-presenting cells, mediate dermal lymphatic expansion and phenotype acquisition postnatally, a function is independent of LC entry into lymphatic vessels. This postnatal LC-lymphatic axis serves in part to control inflammatory systemic T cell responses in adulthood. Our data provide a tissue-based mechanism by which LCs regulate T cells remotely across time and space and raise the possibility that immune diseases in adulthood could reflect compromise of the LC-lymphatic axis in childhood.
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Kyriatzis G, Bernard A, Bôle A, Khrestchatisky M, Ferhat L. In the Rat Hippocampus, Pilocarpine-Induced Status Epilepticus Is Associated with Reactive Glia and Concomitant Increased Expression of CD31, PDGFRβ, and Collagen IV in Endothelial Cells and Pericytes of the Blood-Brain Barrier. Int J Mol Sci 2024; 25:1693. [PMID: 38338969 PMCID: PMC10855308 DOI: 10.3390/ijms25031693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
In humans and animal models, temporal lobe epilepsy (TLE) is associated with reorganization of hippocampal neuronal networks, gliosis, neuroinflammation, and loss of integrity of the blood-brain barrier (BBB). More than 30% of epilepsies remain intractable, and characterization of the molecular mechanisms involved in BBB dysfunction is essential to the identification of new therapeutic strategies. In this work, we induced status epilepticus in rats through injection of the proconvulsant drug pilocarpine, which leads to TLE. Using RT-qPCR, double immunohistochemistry, and confocal imaging, we studied the regulation of reactive glia and vascular markers at different time points of epileptogenesis (latent phase-3, 7, and 14 days; chronic phase-1 and 3 months). In the hippocampus, increased expression of mRNA encoding the glial proteins GFAP and Iba1 confirmed neuroinflammatory status. We report for the first time the concomitant induction of the specific proteins CD31, PDGFRβ, and ColIV-which peak at the same time points as inflammation-in the endothelial cells, pericytes, and basement membrane of the BBB. The altered expression of these proteins occurs early in TLE, during the latent phase, suggesting that they could be associated with the early rupture and pathogenicity of the BBB that will contribute to the chronic phase of epilepsy.
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Affiliation(s)
| | | | | | - Michel Khrestchatisky
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, Marseille, France, Institut de Neurophysiopathologie, Faculté de Médecine, 27 Bd Jean Moulin, 13005 Marseille, France; (G.K.); (A.B.); (A.B.)
| | - Lotfi Ferhat
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, Marseille, France, Institut de Neurophysiopathologie, Faculté de Médecine, 27 Bd Jean Moulin, 13005 Marseille, France; (G.K.); (A.B.); (A.B.)
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Hong W, Gong P, Pan X, Ren Z, Liu Y, Qi G, Li JL, Sun W, Ge WP, Zhang CL, Duan S, Qin S. Temporal-spatial Generation of Astrocytes in the Developing Diencephalon. Neurosci Bull 2024; 40:1-16. [PMID: 37843774 PMCID: PMC10774245 DOI: 10.1007/s12264-023-01131-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 06/24/2023] [Indexed: 10/17/2023] Open
Abstract
Astrocytes are the largest glial population in the mammalian brain. However, we have a minimal understanding of astrocyte development, especially fate specification in different regions of the brain. Through lineage tracing of the progenitors of the third ventricle (3V) wall via in-utero electroporation in the embryonic mouse brain, we show the fate specification and migration pattern of astrocytes derived from radial glia along the 3V wall. Unexpectedly, radial glia located in different regions along the 3V wall of the diencephalon produce distinct cell types: radial glia in the upper region produce astrocytes and those in the lower region produce neurons in the diencephalon. With genetic fate mapping analysis, we reveal that the first population of astrocytes appears along the zona incerta in the diencephalon. Astrogenesis occurs at an early time point in the dorsal region relative to that in the ventral region of the developing diencephalon. With transcriptomic analysis of the region-specific 3V wall and lateral ventricle (LV) wall, we identified cohorts of differentially-expressed genes in the dorsal 3V wall compared to the ventral 3V wall and LV wall that may regulate astrogenesis in the dorsal diencephalon. Together, these results demonstrate that the generation of astrocytes shows a spatiotemporal pattern in the developing mouse diencephalon.
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Affiliation(s)
- Wentong Hong
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Pifang Gong
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Xinjie Pan
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Zhonggan Ren
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Yitong Liu
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Guibo Qi
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Jun-Liszt Li
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
- Chinese Institute for Brain Research, Beijing, 102206, China
| | - Wenzhi Sun
- Chinese Institute for Brain Research, Beijing, 102206, China
- School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Woo-Ping Ge
- Chinese Institute for Brain Research, Beijing, 102206, China
| | - Chun-Li Zhang
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, 75390-9148, USA
| | - Shumin Duan
- Department of Neurobiology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Song Qin
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200032, China.
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Balakrishnan B, Illangeswaran RSS, Rajamani BM, Arunachalam AK, Pai AA, Mohanan E, Srivastava A, Mathews V, Balasubramanian P. Metformin pretreatment ameliorates busulfan-induced liver endothelial toxicity during haematopoietic stem cell transplantation. PLoS One 2023; 18:e0293311. [PMID: 37883349 PMCID: PMC10602364 DOI: 10.1371/journal.pone.0293311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 10/08/2023] [Indexed: 10/28/2023] Open
Abstract
The success of Haematopoietic cell transplantation (HCT) is often limited by regimen-related toxicity (RRT) caused by conditioning regimen drugs. Among different conditioning drugs, busulfan (Bu) and treosulfan (Treo), although widely used in HCT, exhibit different toxicity profiles, the mechanism of which is still unclear. Here we investigated the effects of Bu and Treo in endothelial cells. While both Bu and Treo induced DNA damage in endothelial cells, we observed Bu alone to induce oxidative stress and sustained activation of phospho-ERK1/2, leading to apoptosis. However, Treo-treated cells exhibited no oxidative stress/apoptosis of endothelial cells. Screening of pharmacological inhibitors of both ROS and p-ERK revealed that metformin effectively ameliorates Bu-mediated toxicity in endothelial cells. In Balb/c mice, we observed a significant reduction in bone marrow endothelial cells in Bu-treated mice compared to Treo-treated mice. Further, liver sinusoidal endothelial cells (LSEC) was damaged by Bu, which is implicated in liver vasculature and their functional capacity to uptake FITC-albumin. However, Treo-treated mice liver vasculature was morphologically and functionally normal. When mice were pretreated with metformin followed by Bu, LSECs damage was ameliorated morphologically and functionally. Bone marrow transplants done on these mice did not affect the engraftment of donor cells.
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Affiliation(s)
| | | | | | | | - Aswin Anand Pai
- Department of Haematology, Christian Medical College, Vellore, India
| | | | - Alok Srivastava
- Department of Haematology, Christian Medical College, Vellore, India
- Centre for Stem Cell Research (CSCR), A Unit of InStem Bengaluru, Christian Medical College Campus, Vellore, India
| | - Vikram Mathews
- Department of Haematology, Christian Medical College, Vellore, India
| | - Poonkuzhali Balasubramanian
- Department of Haematology, Christian Medical College, Vellore, India
- Centre for Stem Cell Research (CSCR), A Unit of InStem Bengaluru, Christian Medical College Campus, Vellore, India
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7
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SHI X, WANG L, HU J, ZHANG L, WANG J. Effect of Naoluoxintong formula and its split prescriptions on cerebral vascular regeneration in rats with the cerebral ischemia-reperfusion. J TRADIT CHIN MED 2023; 43:1140-1149. [PMID: 37946476 PMCID: PMC10623265 DOI: 10.19852/j.cnki.jtcm.20221230.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 09/27/2022] [Indexed: 11/12/2023]
Abstract
OBJECTIVE To observe regulatory effect of Naoluoxintong formula (, NLXT) and its split prescriptions on vascular regeneration of rats suffering from cerebral ischemia-reperfusion (IR) syndrome of Qi deficiency with blood stasis (QDBS). METHODS NLXT is the representative prescription of Yiqi Huoxue Tongluo decoction, and NLXT is divided into Yiqi herbs and Huoxue Tongluo herbs according to their efficacies. One hundred and eight specific-pathogen-free, clean-grade, Sprague-Dawley male rats were selected to prepare the classical rat model with QDBS due to middle artery ischemia-reperfusion using the multi-factor compound simulation approach. The animals were classified into sham operation (S), model (M), Nimodping (NMDP), NLXT, YQ and HXTL groups, each having 18 rats. Cerebral ischemia was reperfused after 2 h, and 24 h later, they were administered traditional Chinese medicine treatment for 14 d twice a day. Angiogenesis changes after NLXT administration to middle cerebral artery occlusion-reperfusion (MCAO/R) rats with QDBS were analyzed using the neurological deficit score and hematoxylin-eosin staining. Cerebral infarct area by 2,3,5-Triphenyltetrazolium chloride was detected, and the ultrastructure of the blood vessel in the ischemic frontoparietal cortex was observed by transmission electron microscopy. Angiopoietin 1 (Ang1), angiopoietin 2 (Ang2), vascular endothelial growth factor A (VEGFA), vascular endothelial growth factor receptor 2 (VEGFR2), platelet endothelial cell adhesion molecule-1 (CD31), angiopoietin receptor 2 (Tie2), and P38 mitogen-activated protein kinase (MAPK) protein levels in the frontal and parietal cortex were quantified by immunofluorescence, reverse transcription-polymerase chain reaction, and Western blotting assays. RESULTS Relative to the S group, VEGFA and VEGFR2 levels in the frontal and parietal cortex of group M were increased, and Ang1, Ang2, Tie2, CD31, and p38 MAPK levels remarkably increased (P < 0.05); cerebral infarct area was significant and pathological morphology and ultrastructure damage was obvious. Relative to the group M, VEGFA, VEGFR2, CD31, Ang1, Ang2, and Tie2 expression of group NLXT and NMDP remarkably elevated (P < 0.05) and infarct focus, pathological morphology and ultrastructure were significantly improved; VEGFA and VEGFR2 levels in the groups YQ and HXTL increased, and Ang1, Ang2, CD31, and Tie2 levels remarkably increased (P < 0.05); p38 MAPK levels in the three treatment groups decreased (P < 0.05). Relative to the group NLXT, the expression levels of p38 MAPK in group YQ and group HXTL were significantly increased, and the expression levels of other indicators were significantly decreased (P < 0.05). CONCLUSION NLXT can promote the angiogenesis of the rat model of MCAO/R with QDBS by activating VEGFA and inhibiting P38 MAPK, and the effect is better than that of split prescription groups.
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Affiliation(s)
- Xiao SHI
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Lina WANG
- 2 Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jianpeng HU
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Limiao ZHANG
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jin WANG
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
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8
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Montanucci P, Bistoni O, Antonucci M, Pescara T, Greco A, Basta G, Bartoloni E, Gerli R, Calafiore R. Emerging of a new CD3+CD31HCD184+ tang cell phenothype in Sjögren’s syndrome induced by microencapsulated human umbilical cord matrix-derived multipotent stromal cells. Front Immunol 2023; 14:1095768. [PMID: 36999025 PMCID: PMC10043489 DOI: 10.3389/fimmu.2023.1095768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/01/2023] [Indexed: 03/18/2023] Open
Abstract
BackgroundSjögren’s syndrome (SS) is an autoimmune disease hallmarked by infiltration and destruction of exocrine glands. Currently, there is no therapy that warrants full recovery of the affected tissues. Umbilical cord-derived multipotent stromal cells, microincapsulated in an endotoxin-free alginate gel (CpS-hUCMS), were shown to modulate the inflammatory activity of PBMCs in SS patients in vitro, through release of soluble factors (TGFβ1, IDO1, IL6, PGE2, VEGF). These observations led us to set up the present study, aimed at defining the in vitro effects of CpS-hUCMS on pro- and anti-inflammatory lymphocyte subsets involved in the pathogenesis of SS.Methods and resultsPeripheral blood mononuclear cells (PBMCs) upon collection from SS patients and matched healthy donors, were placed in co-culture with CpS-hUCMS for five days. Cellular proliferation and T- (Tang, Treg) and B- (Breg, CD19+) lymphocyte subsets were studied by flow cytometry, while Multiplex, Real-Time PCR, and Western Blotting techniques were employed for the analysis of transcriptome and secretome. IFNγ pre-treated hUCMS were assessed with a viability assay and Western Blotting analysis before co-culture. After five days co-culture, CpS-hUCMS induced multiple effects on PBMCs, with special regard to decrease of lymphocyte proliferation, increase of regulatory B cells and induction of an angiogenic T cell population with high expression of the surface marker CD31, that had never been described before in the literature.ConclusionWe preliminarily showed that CpS-hUCMS can influence multiple pro- and anti-inflammatory pathways that are deranged in SS. In particular, Breg raised and a new Tang phenothype CD3+CD31HCD184+ emerged. These results may considerably expand our knowledge on multipotent stromal cell properties and may open new therapeutic avenues for the management of this disease, by designing ad hoc clinical studies.
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Affiliation(s)
- Pia Montanucci
- Laboratory for Endocrine Cell Transplants and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Gambuli, Italy
| | - Onelia Bistoni
- Division of Rheumatology, Perugia Hospital, Perugia, Piazzale Giorgio, Italy
| | - Matteo Antonucci
- Rheumatology Unit, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Giorgio, Italy
| | - Teresa Pescara
- Laboratory for Endocrine Cell Transplants and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Gambuli, Italy
| | - Alessia Greco
- Laboratory for Endocrine Cell Transplants and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Gambuli, Italy
| | - Giuseppe Basta
- Laboratory for Endocrine Cell Transplants and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Gambuli, Italy
| | - Elena Bartoloni
- Division of Rheumatology, Perugia Hospital, Perugia, Piazzale Giorgio, Italy
- Rheumatology Unit, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Giorgio, Italy
| | - Roberto Gerli
- Division of Rheumatology, Perugia Hospital, Perugia, Piazzale Giorgio, Italy
- Rheumatology Unit, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Giorgio, Italy
| | - Riccardo Calafiore
- Laboratory for Endocrine Cell Transplants and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Piazzale Gambuli, Italy
- *Correspondence: Riccardo Calafiore,
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9
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Liu Q, Liu H, Griveau A, Li X, Eyer J, Arib C, Spadavecchia J. NFL-TBS.40-63 Peptide Gold Complex Nanovector: A Novel Therapeutic Approach to Increase Anticancer Activity by Breakdown of Microtubules in Pancreatic Adenocarcinoma (PDAC). ACS Pharmacol Transl Sci 2022; 5:1267-1278. [PMID: 36524008 PMCID: PMC9745895 DOI: 10.1021/acsptsci.2c00159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Indexed: 11/28/2022]
Abstract
The role of the NFL-TBS.40-63 peptide is to destroy the microtubule network of target glioma cancer cells. Recently, we have conceived a gold-complex biotinylated NFL-TBS.40-63 (BIOT-NFL) to form a hybrid gold nanovector (BIOT-NFL-PEG-AuNPs). This methodology showed, for the first time, the ability of the BIOT-NFL-PEG-AuNPs to target the destruction of pancreatic cancer cells (PDAC) under experimental conditions, as well as detoxification and preclinical therapeutic efficacy regulated by the steric and chemical configuration of the peptide. For this aim, a mouse transplantation tumor model induced by MIA-PACA-2 cells was applied to estimate the therapeutic efficacy of BIOT-NFL-PEG-AuNPs as a nanoformulation. Our relevant results display that BIOT-NFL-PEG-AuNPs slowed the tumor growth and decreased the tumor index without effects on the body weight of mice with an excellent antiangiogenic effect, mediated by the ability of BIOT-NFL-PEG-AuNPs to alter the metabolic profiles of these MIA-PACA-2 cells. The cytokine levels were detected to evaluate the behavior of serum inflammatory factors and the power of BIOT-NFL-PEG-AuNPs to boost the immune system.
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Affiliation(s)
- Qiqian Liu
- CNRS,
UMR 7244, NBD-CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux et
d′Agents Thérapeutiques Université Paris 13, Sorbonne Paris Nord, Bobigny93000, France
| | - Hui Liu
- Department
of Hepatobiliary Surgery, Guangdong Provincial Key Laboratory of Regional
Immunity and Diseases & Carson International Cancer Center, Shenzhen
University General Hospital & Shenzhen University Clinical Medical
Academy Center, Shenzhen University, Shenzhen518083China
| | - Audrey Griveau
- Laboratoire
Micro et Nanomedecines Translationnelles, Inserm 1066, CNRS 6021,
Institut de Recherche en Ingénierie de la Sante, Bâtiment
IBS Institut de Biologie de la Sante, Université′
Angers, Centre Hospitalier Universitaire, Angers49100France
| | - Xiaowu Li
- Department
of Hepatobiliary Surgery, Guangdong Provincial Key Laboratory of Regional
Immunity and Diseases & Carson International Cancer Center, Shenzhen
University General Hospital & Shenzhen University Clinical Medical
Academy Center, Shenzhen University, Shenzhen518083China
| | - Joel Eyer
- Laboratoire
Micro et Nanomedecines Translationnelles, Inserm 1066, CNRS 6021,
Institut de Recherche en Ingénierie de la Sante, Bâtiment
IBS Institut de Biologie de la Sante, Université′
Angers, Centre Hospitalier Universitaire, Angers49100France
| | - Celia Arib
- CNRS,
UMR 7244, NBD-CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux et
d′Agents Thérapeutiques Université Paris 13, Sorbonne Paris Nord, Bobigny93000, France
| | - Jolanda Spadavecchia
- CNRS,
UMR 7244, NBD-CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux et
d′Agents Thérapeutiques Université Paris 13, Sorbonne Paris Nord, Bobigny93000, France
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10
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Personalized risk predictor for acute cellular rejection in lung transplant using soluble CD31. Sci Rep 2022; 12:17628. [PMID: 36271122 PMCID: PMC9587244 DOI: 10.1038/s41598-022-21070-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 09/22/2022] [Indexed: 01/13/2023] Open
Abstract
We evaluated the contribution of artificial intelligence in predicting the risk of acute cellular rejection (ACR) using early plasma levels of soluble CD31 (sCD31) in combination with recipient haematosis, which was measured by the ratio of arterial oxygen partial pressure to fractional oxygen inspired (PaO2/FiO2) and respiratory SOFA (Sequential Organ Failure Assessment) within 3 days of lung transplantation (LTx). CD31 is expressed on endothelial cells, leukocytes and platelets and acts as a "peace-maker" at the blood/vessel interface. Upon nonspecific activation, CD31 can be cleaved, released, and detected in the plasma (sCD31). The study included 40 lung transplant recipients, seven (17.5%) of whom experienced ACR. We modelled the plasma levels of sCD31 as a nonlinear dependent variable of the PaO2/FiO2 and respiratory SOFA over time using multivariate and multimodal models. A deep convolutional network classified the time series models of each individual associated with the risk of ACR to each individual in the cohort.
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11
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Liu A, Liang C, Liu J, Huang Y, Wang M, Wang L. Reactive Oxygen Species─Responsive Lipid Nanoparticles for Effective RNAi and Corneal Neovascularization Therapy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17022-17031. [PMID: 35380773 DOI: 10.1021/acsami.1c23412] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Corneal neovascularization (CNV) is a common disease that affects the vision ability of more than 1 million people annually. Small interfering RNA (siRNA) delivery nanoparticle platforms are a promising therapeutic modality for CNV treatment. However, the efficient delivery of siRNA into cells and the effective release of siRNA from delivery vehicles in a particular cell type challenge effective RNAi clinical application for CNV suppression. This study reports the design of a novel reactive oxygen species (ROS)-responsive lipid nanoparticle for siRNA delivery into corneal lesions for enhanced RNAi as a potential CNV treatment. We demonstrated that lipid nanoparticles could efficiently deliver siRNA into human umbilical vein endothelial cells and release siRNA for enhanced gene silencing by using the upregulated ROS of CNV to promote lipid nanoparticle degradation. Moreover, the subconjunctival injection of siRNA nanocomplexes into corneal lesions effectively knocked down vascular endothelial growth factor expression and suppressed CNV formation in an alkali burn model. Thus, we believe that the strategy of using ROS-responsive lipid nanoparticles for enhanced RNAi in CNV could be further extended to a promising clinical therapeutic approach to attenuate CNV formation.
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Affiliation(s)
- Anqi Liu
- Department of Ophthalmology, Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - Chunjing Liang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ji Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yifei Huang
- Department of Ophthalmology, Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - Ming Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liqiang Wang
- Department of Ophthalmology, Chinese People's Liberation Army General Hospital, Beijing 100039, China
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12
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Liu GJ, Hu XJ, Huo BJ, Yue M, Liu F, Chang L. Cystathionine β-synthase expression correlates with tumor development and poor prognosis in patients with adenocarcinoma of the gastroesophageal junction. Am J Transl Res 2022; 14:2739-2748. [PMID: 35559372 PMCID: PMC9091128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 12/13/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVES To reveal the expression level of cystathionine β-synthase (CBS) in adenocarcinoma of esophagogastric junction (AEG) and discuss the relationship between CBS expression level and tumor microvascular density (MVD), clinical features and prognosis. METHODS Paraffin samples from 214 patients with AEG were selected to make pathological microchips. Immunohistochemistry was performed based on the microchips to detect the expression level of CBS and microvascular density (MVD) in cancer tissues and adjacent control tissues. Relationships between expression level of CBS and MVD, clinical characteristics and prognosis were analyzed. RESULTS In total, 214 AEG cases were classified into three groups: CBS negative staining (n=26), low staining (n=44), and high staining (n=144). Quantitative alterations in CBS and CD31 expression were explored using immunohistochemistry. The 5-year recurrence rate of enrolled patients was followed up and found that CBS expression was significantly increased in tumor tissue compared with adjacent non-tumor tissue (P<0.0001). There were significant differences in microvascular density between the groups with negative and high CBS staining (P<0.0001), and between the groups with low and high CBS staining (P<0.0001). Univariate analysis revealed significant differences in tumor stage (P<0.0001), T stage (P=0.008), N stage (P=0.028), differentiation degree (P=0.037), and 5-year survival (P=0.0034) among the three groups. Multivariate logic regression analysis showed that increased CBS scores were associated with an increased probability of 5-year recurrence (P=0.018). Finally, different CBS expression levels were associated with disease-free survival in AEG patients. CONCLUSIONS CBS expression level is closely related to microvascular density and tumor stage in AEG. High level of CBS not only accelerates tumor angiogenesis but also affects patient's survival and prognosis.
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Affiliation(s)
- Guang-Jie Liu
- Department of Thoracic Surgery, Hebei Medical University Fourth Affiliated HospitalShijiazhuang 050001, Hebei, China
| | - Xiao-Jie Hu
- Department of General Surgery, Hebei Provincial People’s HospitalShijiazhuang 050055, Hebei, China
| | - Bing-Jie Huo
- Department of Chinese Medicine, Hebei Medical University Fourth Affiliated HospitalShijiazhuang 050001, Hebei, China
| | - Meng Yue
- Department of Pathology, Hebei Medical University Fourth Affiliated HospitalShijiazhuang 050001, Hebei, China
| | - Fang Liu
- Department of Thoracic Surgery, Hebei Medical University Fourth Affiliated HospitalShijiazhuang 050001, Hebei, China
| | - Liang Chang
- Department of Basic Theories of Chinese Medicine, Hebei University of Chinese MedicineShijiazhuang 050200, Hebei, China
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13
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Alcohol-Induced Alterations in the Vascular Basement Membrane in the Substantia Nigra of the Adult Human Brain. Biomedicines 2022; 10:biomedicines10040830. [PMID: 35453580 PMCID: PMC9028457 DOI: 10.3390/biomedicines10040830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 12/10/2022] Open
Abstract
The blood–brain barrier (BBB) represents a highly specialized interface that acts as the first line of defense against toxins. Herein, we investigated the structural and ultrastructural changes in the basement membrane (BM), which is responsible for maintaining the integrity of the BBB, in the context of chronic alcoholism. Human post-mortem tissues from the Substantia Nigra (SN) region were obtained from 44 individuals, then grouped into controls, age-matched alcoholics, and non-age-matched alcoholics and assessed using light and electron microscopy. We found significantly less CD31+ vessels in alcoholic groups compared to controls in both gray and white matter samples. Alcoholics showed increased expression levels of collagen-IV, laminin-111, and fibronectin, which were coupled with a loss of BM integrity in comparison with controls. The BM of the gray matter was found to be more disintegrated than the white matter in alcoholics, as demonstrated by the expression of both collagen-IV and laminin-111, thereby indicating a breakdown in the BM’s structural composition. Furthermore, we observed that the expression of fibronectin was upregulated in the BM of the white matter vasculature in both alcoholic groups compared to controls. Taken together, our findings highlight some sort of aggregation or clumping of BM proteins that occurs in response to chronic alcohol consumption.
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14
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Vinci R, Pedicino D, Bonanni A, d'Aiello A, Pisano E, Ponzo M, Severino A, Ciampi P, Canonico F, Russo G, Di Sario M, Vergallo R, Filomia S, Montone RA, Flego D, Stefanini L, Piacentini R, Conte C, Cribari F, Massetti M, Crea F, Liuzzo G. Monocyte-Platelet Aggregates Triggered by CD31 Molecule in Non-ST Elevation Myocardial Infarction: Clinical Implications in Plaque Rupture. Front Cardiovasc Med 2022; 8:741221. [PMID: 35146002 PMCID: PMC8821091 DOI: 10.3389/fcvm.2021.741221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 12/20/2021] [Indexed: 11/13/2022] Open
Abstract
Despite the recent innovations in cardiovascular care, atherothrombosis is still a major complication of acute coronary syndromes (ACS). We evaluated the involvement of the CD31 molecule in thrombotic risk through the formation of monocyte-platelet (Mo-Plt) aggregates in patients with ACS with no-ST-segment elevation myocardial infarction (NSTEMI) on top of dual anti-platelet therapy (DAPT). We enrolled 19 control (CTRL) subjects, 46 stable angina (SA), and 86 patients with NSTEMI, of which, 16 with Intact Fibrous Cap (IFC) and 19 with Ruptured Fibrous Cap (RFC) as assessed by the Optical Coherence Tomography (OCT). The expression of CD31 on monocytes and platelets was measured. Following the coronary angiography, 52 NSTEMIs were further stratified according to thrombus grade (TG) evaluation. Finally, a series of ex vivo experiments verified whether the CD31 participates in Mo-Plt aggregate formation. In patients with NSTEMI, CD31 was reduced on monocytes and was increased on platelets, especially in NSTEMI presented with RFC plaques compared to those with IFC lesions, and in patients with high TG compared to those with zero/low TG. Ex vivo experiments documented an increase in Mo-Plt aggregates among NSTEMI, which significantly decreased after the CD31 ligation, particularly in patients with RFC plaques. In NSTEMI, CD31 participates in Mo-Plt aggregate formation in spite of optimal therapy and DAPT, suggesting the existence of alternative thrombotic pathways, as predominantly displayed in patients with RFC.
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Affiliation(s)
- Ramona Vinci
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Daniela Pedicino
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- *Correspondence: Daniela Pedicino
| | - Alice Bonanni
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Alessia d'Aiello
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Eugenia Pisano
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Myriana Ponzo
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Anna Severino
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Pellegrino Ciampi
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Canonico
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Giulio Russo
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Marianna Di Sario
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Rocco Vergallo
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Simone Filomia
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Rocco Antonio Montone
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Davide Flego
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Lucia Stefanini
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Roberto Piacentini
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Cristina Conte
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Cribari
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Massimo Massetti
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Filippo Crea
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Giovanna Liuzzo
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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15
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Zhang Z, Na H, Gan Q, Tao Q, Alekseyev Y, Hu J, Yan Z, Yang JB, Tian H, Zhu S, Li Q, Rajab IM, Blusztajn JK, Wolozin B, Emili A, Zhang X, Stein T, Potempa LA, Qiu WQ. Monomeric C-reactive protein via endothelial CD31 for neurovascular inflammation in an ApoE genotype-dependent pattern: A risk factor for Alzheimer's disease? Aging Cell 2021; 20:e13501. [PMID: 34687487 PMCID: PMC8590103 DOI: 10.1111/acel.13501] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/25/2021] [Accepted: 10/11/2021] [Indexed: 11/29/2022] Open
Abstract
In chronic peripheral inflammation, endothelia in brain capillary beds could play a role for the apolipoprotein E4 (ApoE4)‐mediated risk for Alzheimer's disease (AD) risk. Using human brain tissues, here we demonstrate that the interactions of endothelial CD31 with monomeric C‐reactive protein (mCRP) versus ApoE were linked with shortened neurovasculature for AD pathology and cognition. Using ApoE knock‐in mice, we discovered that intraperitoneal injection of mCRP, via binding to CD31 on endothelial surface and increased CD31 phosphorylation (pCD31), leading to cerebrovascular damage and the extravasation of T lymphocytes into the ApoE4 brain. While mCRP was bound to endothelial CD31 in a dose‐ and time‐dependent manner, knockdown of CD31 significantly decreased mCRP binding and altered the expressions of vascular‐inflammatory factors including vWF, NF‐κB and p‐eNOS. RNAseq revealed endothelial pathways related to oxidative phosphorylation and AD pathogenesis were enhanced, but endothelial pathways involving in epigenetics and vasculogenesis were inhibited in ApoE4. This is the first report providing some evidence on the ApoE4‐mCRP‐CD31 pathway for the cross talk between peripheral inflammation and cerebrovasculature leading to AD risk.
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Affiliation(s)
- Zhengrong Zhang
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Hana Na
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Qini Gan
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Qiushan Tao
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Yuriy Alekseyev
- Microarray and Sequencing Core Facility Boston University School of Medicine Boston Massachusetts USA
| | - Junming Hu
- Department of Medicine Boston University School of Medicine Boston Massachusetts USA
| | - Zili Yan
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Jack B. Yang
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Hua Tian
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
- Department of Pharmacology Xiaman Medical College Xiaman China
| | - Shenyu Zhu
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Qiang Li
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
- Nursing School Qiqihar Medical University Qiqihar China
| | | | - Jan Krizysztof Blusztajn
- Department of Pathology and Laboratory Medicine Boston University School of Medicine Boston Massachusetts USA
| | - Benjamin Wolozin
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
| | - Andrew Emili
- Department of Biochemistry Boston University School of Medicine Boston Massachusetts USA
| | - Xiaoling Zhang
- Department of Medicine Boston University School of Medicine Boston Massachusetts USA
| | - Thor Stein
- Department of Pathology and Laboratory Medicine Boston University School of Medicine Boston Massachusetts USA
- Alzheimer’s Disease Center Boston University School of Medicine Boston Massachusetts USA
- VA Boston Healthcare System Boston Massachusetts USA
- Department of Veterans Affairs Medical Center Bedford Massachusetts USA
| | | | - Wei Qiao Qiu
- Department of Pharmacology and Experimental Therapeutics Boston University School of Medicine Boston Massachusetts USA
- Alzheimer’s Disease Center Boston University School of Medicine Boston Massachusetts USA
- Department of Psychiatry Boston University School of Medicine Boston Massachusetts USA
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16
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Tura-Ceide O, Smolders VFED, Aventin N, Morén C, Guitart-Mampel M, Blanco I, Piccari L, Osorio J, Rodríguez C, Rigol M, Solanes N, Malandrino A, Kurakula K, Goumans MJ, Quax PHA, Peinado VI, Castellà M, Barberà JA. Derivation and characterisation of endothelial cells from patients with chronic thromboembolic pulmonary hypertension. Sci Rep 2021; 11:18797. [PMID: 34552142 PMCID: PMC8458486 DOI: 10.1038/s41598-021-98320-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/13/2021] [Indexed: 11/09/2022] Open
Abstract
Pulmonary endarterectomy (PEA) resected material offers a unique opportunity to develop an in vitro endothelial cell model of chronic thromboembolic pulmonary hypertension (CTEPH). We aimed to comprehensively analyze the endothelial function, molecular signature, and mitochondrial profile of CTEPH-derived endothelial cells to better understand the pathophysiological mechanisms of endothelial dysfunction behind CTEPH, and to identify potential novel targets for the prevention and treatment of the disease. Isolated cells from specimens obtained at PEA (CTEPH-EC), were characterized based on morphology, phenotype, and functional analyses (in vitro and in vivo tubule formation, proliferation, apoptosis, and migration). Mitochondrial content, morphology, and dynamics, as well as high-resolution respirometry and oxidative stress, were also studied. CTEPH-EC displayed a hyperproliferative phenotype with an increase expression of adhesion molecules and a decreased apoptosis, eNOS activity, migration capacity and reduced angiogenic capacity in vitro and in vivo compared to healthy endothelial cells. CTEPH-EC presented altered mitochondrial dynamics, increased mitochondrial respiration and an unbalanced production of reactive oxygen species and antioxidants. Our study is the foremost comprehensive investigation of CTEPH-EC. Modulation of redox, mitochondrial homeostasis and adhesion molecule overexpression arise as novel targets and biomarkers in CTEPH.
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Affiliation(s)
- Olga Tura-Ceide
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain. .,Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), 28029, Madrid, Spain. .,Department of Pulmonary Medicine, Santa Caterina Hospital de Salt and the Girona Biomedical Research Institut (IDIBGI), Dr. Josep Trueta University Hospital de Girona, 17190, Girona, Spain.
| | - Valérie F E D Smolders
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain.,Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain.,Department of Vascular Surgery, Leiden University Medical Center, Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Núria Aventin
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain
| | - Constanza Morén
- Laboratory of Muscle Research and Mitochondrial Function, Department of Internal Medicine, Hospital Clínic of Barcelona (HCB), Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona (UB), Barcelona, Spain.,Biomedical Research Networking Centre on Rare Diseases (CIBERER), Madrid, Spain
| | - Mariona Guitart-Mampel
- Laboratory of Muscle Research and Mitochondrial Function, Department of Internal Medicine, Hospital Clínic of Barcelona (HCB), Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona (UB), Barcelona, Spain
| | - Isabel Blanco
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain.,Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), 28029, Madrid, Spain
| | - Lucilla Piccari
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain
| | - Jeisson Osorio
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain.,Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), 28029, Madrid, Spain
| | - Cristina Rodríguez
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain.,Department of Pulmonary Medicine, Santa Caterina Hospital de Salt and the Girona Biomedical Research Institut (IDIBGI), Dr. Josep Trueta University Hospital de Girona, 17190, Girona, Spain
| | - Montserrat Rigol
- Cardiovascular Institute, Hospital Clínic de Barcelona-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.,Biomedical Research Networking Center on Cardiovascular Diseases (CIBERCV), Madrid, Spain
| | - Núria Solanes
- Cardiovascular Institute, Hospital Clínic de Barcelona-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Andrea Malandrino
- European Molecular Biology Laboratory (EMBL), Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
| | - Kondababu Kurakula
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marie Jose Goumans
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Paul H A Quax
- Department of Vascular Surgery, Leiden University Medical Center, Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Victor I Peinado
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain.,Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), 28029, Madrid, Spain
| | - Manuel Castellà
- Department of Cardiovascular Surgery, Cardiovascular Institute, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Joan Albert Barberà
- Department of Pulmonary Medicine, Servei de Pneumologia, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Villarroel, 170, 08036, Barcelona, Spain. .,Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), 28029, Madrid, Spain.
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17
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Chen SY, Tsuneyama K, Yen MH, Lee JT, Chen JL, Huang SM. Hyperbaric oxygen suppressed tumor progression through the improvement of tumor hypoxia and induction of tumor apoptosis in A549-cell-transferred lung cancer. Sci Rep 2021; 11:12033. [PMID: 34103583 PMCID: PMC8187442 DOI: 10.1038/s41598-021-91454-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/27/2021] [Indexed: 01/16/2023] Open
Abstract
Tumor cells have long been recognized as a relative contraindication to hyperbaric oxygen treatment (HBOT) since HBOT might enhance progressive cancer growth. However, in an oxygen deficit condition, tumor cells are more progressive and can be metastatic. HBOT increasing in oxygen partial pressure may benefit tumor suppression. In this study, we investigated the effects of HBOT on solid tumors, such as lung cancer. Non-small cell human lung carcinoma A549-cell-transferred severe combined immunodeficiency mice (SCID) mice were selected as an in vivo model to detect the potential mechanism of HBOT in lung tumors. HBOT not only improved tumor hypoxia but also suppressed tumor growth in murine xenograft tumor models. Platelet endothelial cell adhesion molecule (PECAM-1/CD31) was significantly increased after HBOT. Immunostaining of cleaved caspase-3 was demonstrated and apoptotic tumor cells with nuclear debris were aggregated starting on the 14th-day after HBOT. In vitro, HBOT suppressed the growth of A549 cells in a time-dependent manner and immediately downregulated the expression of p53 protein after HBOT in A549 cells. Furthermore, HBOT-reduced p53 protein could be rescued by a proteasome degradation inhibitor, but not an autophagy inhibitor in A549 cells. Our results demonstrated that HBOT improved tissue angiogenesis, tumor hypoxia and increased tumor apoptosis to lung cancer cells in murine xenograft tumor models, through modifying the tumor hypoxic microenvironment. HBOT will merit further cancer therapy as an adjuvant treatment for solid tumors, such as lung cancer.
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Affiliation(s)
- Shao-Yuan Chen
- Department of Hyperbaric Medicine and Neurology, Cardinal Tien Hospital, New Taipei City, Taiwan, ROC. .,School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan, ROC. .,Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan, ROC.
| | - Koichi Tsuneyama
- Department of Molecular and Environmental Pathology, The University of Tokushima, Tokushima, Japan
| | - Mao-Hsiung Yen
- Department of Pharmacology, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Jiunn-Tay Lee
- Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Jiun-Liang Chen
- Department of Traditional Chinese Medicine, Chang Gung University, Taoyuan City, Taiwan, ROC
| | - Shih-Ming Huang
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan, ROC
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18
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Thacker VV, Sharma K, Dhar N, Mancini G, Sordet‐Dessimoz J, McKinney JD. Rapid endotheliitis and vascular damage characterize SARS-CoV-2 infection in a human lung-on-chip model. EMBO Rep 2021; 22:e52744. [PMID: 33908688 PMCID: PMC8183417 DOI: 10.15252/embr.202152744] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022] Open
Abstract
Severe cases of SARS-CoV-2 infection are characterized by hypercoagulopathies and systemic endotheliitis of the lung microvasculature. The dynamics of vascular damage, and whether it is a direct consequence of endothelial infection or an indirect consequence of an immune cell-mediated cytokine storm remain unknown. Using a vascularized lung-on-chip model, we find that infection of alveolar epithelial cells leads to limited apical release of virions, consistent with reports of monoculture infection. However, viral RNA and proteins are rapidly detected in underlying endothelial cells, which are themselves refractory to apical infection in monocultures. Although endothelial infection is unproductive, it leads to the formation of cell clusters with low CD31 expression, a progressive loss of barrier integrity and a pro-coagulatory microenvironment. Viral RNA persists in individual cells generating an inflammatory response, which is transient in epithelial cells but persistent in endothelial cells and typified by IL-6 secretion even in the absence of immune cells. Inhibition of IL-6 signalling with tocilizumab reduces but does not prevent loss of barrier integrity. SARS-CoV-2-mediated endothelial cell damage thus occurs independently of cytokine storm.
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Affiliation(s)
- Vivek V Thacker
- Global Health InstituteEcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Kunal Sharma
- Global Health InstituteEcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Neeraj Dhar
- Global Health InstituteEcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Gian‐Filippo Mancini
- Histology Core FacilityEcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | | | - John D McKinney
- Global Health InstituteEcole Polytechnique Fédérale de LausanneLausanneSwitzerland
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19
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Is angiogenic CD4+ T-cell mediated inflammation responsible for endothelial dysfunction in essential hypertension? J Hypertens 2021; 39:867-868. [PMID: 33824257 DOI: 10.1097/hjh.0000000000002749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Cohen G, Chandran P, Lorsung RM, Aydin O, Tomlinson LE, Rosenblatt RB, Burks SR, Frank JA. Pulsed-Focused Ultrasound Slows B16 Melanoma and 4T1 Breast Tumor Growth through Differential Tumor Microenvironmental Changes. Cancers (Basel) 2021; 13:cancers13071546. [PMID: 33801627 PMCID: PMC8036693 DOI: 10.3390/cancers13071546] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 02/07/2023] Open
Abstract
Focused ultrasound (FUS) has shown promise as a non-invasive treatment modality for solid malignancies. FUS targeting to tumors has been shown to initiate pro-inflammatory immune responses within the tumor microenvironment. Pulsed FUS (pFUS) can alter the expression of cytokines, chemokines, trophic factors, cell adhesion molecules, and immune cell phenotypes within tissues. Here, we investigated the molecular and immune cell effects of pFUS on murine B16 melanoma and 4T1 breast cancer flank tumors. Temporal changes following sonication were evaluated by proteomics, RNA-seq, flow-cytometry, and histological analyses. Proteomic profiling revealed molecular changes occurring over 24 h post-pFUS that were consistent with a shift toward inflamed tumor microenvironment. Over 5 days post-pFUS, tumor growth rates were significantly decreased while flow cytometric analysis revealed differences in the temporal migration of immune cells. Transcriptomic analyses following sonication identified differences in gene expression patterns between the two tumor types. Histological analyses further demonstrated reduction of proliferation marker, Ki-67 in 4T1, but not in B16 tumors, and activated cleaved-caspase 3 for apoptosis remained elevated up to 3 days post-pFUS in both tumor types. This study revealed diverse biological mechanisms following pFUS treatment and supports its use as a possible adjuvant to ablative tumor treatment to elicit enhanced anti-tumor responses and slow tumor growth.
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Affiliation(s)
- Gadi Cohen
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
- Correspondence: (G.C.); (P.C.); (J.A.F.)
| | - Parwathy Chandran
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
- Correspondence: (G.C.); (P.C.); (J.A.F.)
| | - Rebecca M. Lorsung
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
| | - Omer Aydin
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
- Department of Biomedical Engineering, Erciyes University, Kayseri 38039, Turkey
| | - Lauren E. Tomlinson
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
| | - Robert B. Rosenblatt
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
| | - Scott R. Burks
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
| | - Joseph A. Frank
- Frank Laboratory, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA; (R.M.L.); (O.A.); (L.E.T.); (R.B.R.); (S.R.B.)
- National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892-1074, USA
- Correspondence: (G.C.); (P.C.); (J.A.F.)
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21
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Wang W, Zhang Q, Li Z, Zhang J, Pan D, Wang B, Zhu H, Zhang H, Gu Z, Luo K. Dendron-Functionalized Polyglutamate-Pyropheophorbide-a Conjugates as Nanomedicines for Breast Cancer Photodynamic Therapy. Macromol Rapid Commun 2021; 42:e2100013. [PMID: 33759304 DOI: 10.1002/marc.202100013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/25/2021] [Indexed: 02/05/2023]
Abstract
Photodynamic therapy (PDT) has shown its promise in the treatment of cancer. Herein, a dendron-functionalized polyglutamic acid (PGA) polymer (PG-L8G-Ppa-Dendron, PGPD) is synthesized and it is conjugated with pyropheophorbide-a (Ppa) for the first time to treat triple negative breast cancer (TNBC), whereas a linear polyglutamate-Ppa conjugate (PGP) is synthesized as a control. Compared to the linear counterpart, the glycosylated polymer-based PGPD with a dendritic structure has excellent solubility and it self-assembles to form uniform-sized nanoparticles. PGPD displays a highly effective PDT effect in the animal model, evidenced with effective induction of reactive oxygen species (ROS) production and cell apoptosis. This may be due to an enhanced efficiency in delivery and accumulation of Ppa by this glycosylated dendritic polymer at tumor sites. Therefore, PGPD can be a highly effective and biosafe nanoagent for PDT of TNBC.
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Affiliation(s)
- Wenjia Wang
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qianfeng Zhang
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.,School of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, 621000, China
| | - Zhiqian Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jing Zhang
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.,Department of Applied Chemistry, Faculty of Science, Sichuan Agricultural University, Yaan, 625014, China
| | - Dayi Pan
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Bing Wang
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hongyan Zhu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, CA, 91711, USA
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China
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22
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Saheb Sharif-Askari N, Saheb Sharif-Askari F, Mdkhana B, Al Heialy S, Alsafar HS, Hamoudi R, Hamid Q, Halwani R. Enhanced expression of immune checkpoint receptors during SARS-CoV-2 viral infection. Mol Ther Methods Clin Dev 2021; 20:109-121. [PMID: 33200082 PMCID: PMC7658590 DOI: 10.1016/j.omtm.2020.11.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/04/2020] [Indexed: 12/17/2022]
Abstract
The immune system is tightly regulated by the activity of stimulatory and inhibitory immune receptors. This immune homeostasis is usually disturbed during chronic viral infection. Using publicly available transcriptomic datasets, we conducted in silico analyses to evaluate the expression pattern of 38 selected immune inhibitory receptors (IRs) associated with different myeloid and lymphoid immune cells during coronavirus disease 2019 (COVID-19) infection. Our analyses revealed a pattern of overall upregulation of IR mRNA during severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. A large number of IRs expressed on both lymphoid and myeloid cells were upregulated in nasopharyngeal swabs (NPSs), while lymphoid-associated IRs were specifically upregulated in autopsies, reflecting severe, terminal stage COVID-19 disease. Eight genes (BTLA, LAG3, FCGR2B, PDCD1, CEACAM1, CTLA4, CD72, and SIGLEC7), shared by NPSs and autopsies, were more expressed in autopsies and were directly correlated with viral levels. Single-cell data from blood and bronchoalveolar samples also reflected the observed association between IR upregulation and disease severity. Moreover, compared to SARS-CoV-1, influenza, and respiratory syncytial virus infections, the number and intensities of upregulated IRs were higher in SARS-CoV-2 infections. In conclusion, the immunopathology and severity of COVID-19 could be attributed to dysregulation of different immune inhibitors. Targeting one or more of these immune inhibitors could represent an effective therapeutic approach for the treatment of COVID-19 early and late immune dysregulations.
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Affiliation(s)
- Narjes Saheb Sharif-Askari
- Sharjah Institute of Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Fatemeh Saheb Sharif-Askari
- Sharjah Institute of Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Bushra Mdkhana
- Sharjah Institute of Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Saba Al Heialy
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
- Meakins-Christie Laboratories, Research Institute of the McGill University Healthy Center, McGill University, Montreal, QC, Canada
| | - Habiba S. Alsafar
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Biomedical Engineering, College of Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Genetics and Molecular Biology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Rifat Hamoudi
- Sharjah Institute of Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Qutayba Hamid
- Sharjah Institute of Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Meakins-Christie Laboratories, Research Institute of the McGill University Healthy Center, McGill University, Montreal, QC, Canada
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Rabih Halwani
- Sharjah Institute of Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Prince Abdullah Ben Khaled Celiac Disease Research Chair, Department of Pediatrics, Faculty of Medicine, King Saud University, Saudi Arabia
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23
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Zhang S, Sun Y, Jiang D, Chen T, Liu R, Li X, Lu Y, Qiao L, Pan Y, Liu Y, Lin J. Construction and Optimization of an Endometrial Injury Model in Mice by Transcervical Ethanol Perfusion. Reprod Sci 2021; 28:693-702. [PMID: 32939736 DOI: 10.1007/s43032-020-00296-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/10/2020] [Indexed: 10/23/2022]
Abstract
This study aimed to establish a stable animal model of intrauterine adhesion (IUA) using a minimally invasive method that recapitulates the clinicopathologic characteristics of IUA. Mice were randomly divided into groups based on the ethanol treatment time (the EtOH-10 s, EtOH-20 s, EtOH-40 s, EtOH-1 min, and sham operation groups), and after the cervix was relaxed with phloroglucinol, the uterine horn was perfused with 95% ethanol through the cervix to induce endometrial injury. Eight days after the procedure, routine biochemical assays were performed to assess liver and kidney function; HE and Masson staining were used to assess uterine morphology and fibrosis; and immunohistochemistry was performed to evaluate the expression of CD31 and F4/80 in the endometrium. Furthermore, the fertility of mice in the EtOH-40 s group and the sham operation group was compared. As expected, the ethanol treatment time was positively correlated with the degree of uterine damage and kidney dysfunction in mice. In particular, the endometria of mice in the EtOH-40 s group were significantly thinner than those of mice in the sham operation group and exhibited severe necrosis, glandular loss, incomplete epithelial and glandular epithelial cell structure, severe tissue fibrosis, an activated inflammatory response, and a significant decrease in the number of fetuses, consistent with the clinical characteristics of severe IUA. In conclusion, this study resulted in successful establishment, by a minimally invasive transcervical ethanol perfusion technique, of a mouse model of endometrial injury, which could support an in-depth study of IUA pathogenesis and further promote the development of IUA therapies.
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Affiliation(s)
- Shenghui Zhang
- The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453100, China
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yuliang Sun
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, 453003, China
| | - Dongli Jiang
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
- School of International Education of Xinxiang Medical University, Xinxiang, 453003, China
| | - Tongtong Chen
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Ruihong Liu
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, 453003, China
| | - Xinyi Li
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yilin Lu
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Liang Qiao
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Ying Pan
- The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453100, China.
| | - Yanli Liu
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China.
| | - Juntang Lin
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, 453003, China
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24
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Bonacina F, Da Dalt L, Catapano AL, Norata GD. Metabolic adaptations of cells at the vascular-immune interface during atherosclerosis. Mol Aspects Med 2020; 77:100918. [PMID: 33032828 PMCID: PMC7534736 DOI: 10.1016/j.mam.2020.100918] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/28/2020] [Accepted: 09/28/2020] [Indexed: 12/20/2022]
Abstract
Metabolic reprogramming is a physiological cellular adaptation to intracellular and extracellular stimuli that couples to cell polarization and function in multiple cellular subsets. Pathological conditions associated to nutrients overload, such as dyslipidaemia, may disturb cellular metabolic homeostasis and, in turn, affect cellular response and activation, thus contributing to disease progression. At the vascular/immune interface, the site of atherosclerotic plaque development, many of these changes occur. Here, an intimate interaction between endothelial cells (ECs), vascular smooth muscle cells (VSMCs) and immune cells, mainly monocytes/macrophages and lymphocytes, dictates physiological versus pathological response. Furthermore, atherogenic stimuli trigger metabolic adaptations both at systemic and cellular level that affect the EC layer barrier integrity, VSMC proliferation and migration, monocyte infiltration, macrophage polarization, lymphocyte T and B activation. Rewiring cellular metabolism by repurposing “metabolic drugs” might represent a pharmacological approach to modulate cell activation at the vascular immune interface thus contributing to control the immunometabolic response in the context of cardiovascular diseases.
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Affiliation(s)
- F Bonacina
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
| | - L Da Dalt
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
| | - A L Catapano
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCSS Multimedica, Milan, Italy.
| | - G D Norata
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCCS, Ospedale Bassini, Cinisello Balsamo, Italy.
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25
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Cheung KCP, Fanti S, Mauro C, Wang G, Nair AS, Fu H, Angeletti S, Spoto S, Fogolari M, Romano F, Aksentijevic D, Liu W, Li B, Cheng L, Jiang L, Vuononvirta J, Poobalasingam TR, Smith DM, Ciccozzi M, Solito E, Marelli-Berg FM. Preservation of microvascular barrier function requires CD31 receptor-induced metabolic reprogramming. Nat Commun 2020; 11:3595. [PMID: 32681081 PMCID: PMC7367815 DOI: 10.1038/s41467-020-17329-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 06/09/2020] [Indexed: 12/19/2022] Open
Abstract
Endothelial barrier (EB) breaching is a frequent event during inflammation, and it is followed by the rapid recovery of microvascular integrity. The molecular mechanisms of EB recovery are poorly understood. Triggering of MHC molecules by migrating T-cells is a minimal signal capable of inducing endothelial contraction and transient microvascular leakage. Using this model, we show that EB recovery requires a CD31 receptor-induced, robust glycolytic response sustaining junction re-annealing. Mechanistically, this response involves src-homology phosphatase activation leading to Akt-mediated nuclear exclusion of FoxO1 and concomitant β-catenin translocation to the nucleus, collectively leading to cMyc transcription. CD31 signals also sustain mitochondrial respiration, however this pathway does not contribute to junction remodeling. We further show that pathologic microvascular leakage in CD31-deficient mice can be corrected by enhancing the glycolytic flux via pharmacological Akt or AMPK activation, thus providing a molecular platform for the therapeutic control of EB response.
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Affiliation(s)
- Kenneth C P Cheung
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
- School of Life Sciences, Centre for Cell & Developmental Biology and Partner State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Silvia Fanti
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Claudio Mauro
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelson Way, Birmingham, B152WB, UK
| | - Guosu Wang
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Anitha S Nair
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Hongmei Fu
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Silvia Angeletti
- Unit of Clinical Laboratory Science, University Campus Bio-Medico of Rome, Rome, Italy
| | - Silvia Spoto
- Internal Medicine Department, University campus Bio-Medico of Rome, Rome, Italy
| | - Marta Fogolari
- Unit of Clinical Laboratory Science, University Campus Bio-Medico of Rome, Rome, Italy
| | - Francesco Romano
- Unit of Clinical Laboratory Science, University Campus Bio-Medico of Rome, Rome, Italy
| | - Dunja Aksentijevic
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Weiwei Liu
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, People's Republic of China
| | - Baiying Li
- School of Life Sciences, Centre for Cell & Developmental Biology and Partner State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Lixin Cheng
- School of Life Sciences, Centre for Cell & Developmental Biology and Partner State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Liwen Jiang
- School of Life Sciences, Centre for Cell & Developmental Biology and Partner State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Juho Vuononvirta
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Thanushiyan R Poobalasingam
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - David M Smith
- AstraZeneca R&D, Cambridge Science Park, Milton Road, Cambridge, CB4 0WG, UK
| | - Massimo Ciccozzi
- Unit of Medical Statistic and Molecular Epidemiology, University Campus Bio-Medico of Rome, Rome, Italy
| | - Egle Solito
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Universita degli studi di Napoli "Federico II", 80131, Naples, Italy
| | - Federica M Marelli-Berg
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK.
- Centre for inflammation and Therapeutic Innovation, Queen Mary University of London, Charterhouse Square, London, UK.
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26
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Abstract
The potential of CD31 as a therapeutic target in atherosclerosis has been considered ever since its cloning in the 1990s, but the exact role played by this molecule in the biologic events underlying atherosclerosis has remained controversial, resulting in the stalling of any therapeutic perspective. Due to the supposed cell adhesive properties of CD31, specific monoclonal antibodies and recombinant proteins were regarded as blocking agents because their use prevented the arrival of leukocytes at sites of acute inflammation. However, the observed effect of those compounds likely resulted from the engagement of the immunomodulatory function of CD31 signaling. This was acknowledged only later though, upon the discovery of CD31's 2 intracytoplasmic tyrosine residues called immunoreceptor tyrosine inhibitory motifs. A growing body of evidence currently points at a therapeutic potential for CD31 agonists in atherothrombosis. Clinical observations show that CD31 expression is altered at the surface of leukocytes infiltrating unhealed atherothrombotic lesions and that the physiological immunomodulatory functions of CD31 are lost at the surface of blood leukocytes in patients with acute coronary syndromes. On the contrary, translational studies using candidate therapeutic molecules in laboratory animals have provided encouraging results: synthetic peptides administered to atherosclerotic mice as systemic drugs in the acute phases of atherosclerotic complications favor the healing of wounded arteries, whereas the immobilization of CD31 agonist peptides onto coronary stents implanted in farm pigs favors their peaceful integration within the coronary arterial wall.
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Affiliation(s)
- Giuseppina Caligiuri
- From the Laboratory for Vascular Translational Science, Inserm U1148, Université de Paris, France; and Department of Cardiology, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Nord Val-de-Seine, Site Bichat, France
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27
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Liu F, Zhou H, Du W, Huang X, Zheng X, Zhang C, Hu H, Wang J, Quan R. Hair follicle stem cells combined with human allogeneic acellular amniotic membrane for repair of full thickness skin defects in nude mice. J Tissue Eng Regen Med 2020; 14:723-735. [PMID: 32220061 DOI: 10.1002/term.3035] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 03/04/2020] [Accepted: 03/12/2020] [Indexed: 11/05/2022]
Abstract
Repair of large skin defects caused by burns, trauma, or tumor operations is a clinical challenge. Hair follicle stem cells (HFSCs) are involved in epithelialization of wounds, formation of new hair follicles and promote vascularization in the newly formed skin, and human acellular amniotic membrane (hAAM) is a promising scaffold for skin substitute. Here, we investigated the ability of rat HFSCs (rHFSCs) combined with an hAAM to repair full thickness skin defects in nude mice. The effect of the rHFSC-hAAM composite on the repair of skin defects in nude mice was assessed by hematoxylin and eosin staining, immunohistochemistry, and EdU-labeled cell tracking. Isolated and cultured rHFSCs had strong cloning and proliferation potentials. Immunofluorescence staining and flow cytometry assays showed that rHFSCs expressed high levels of integrin α6, CK15, p63, and Sox9. Cells cultured in hAAM showed flaky and cluster-like morphology and were able to adhere and grow effectively. After transplantation, the rHFSC-hAAM composite promoted wound healing in nude mice. Moreover, cells in the rHFSC-hAAM composite were directly involved in hair follicle formation and angiogenesis of tissue around the hair follicle. These results provide an experimental and theoretical basis for the clinical application of HFSCs in repair of human skin defects and a new approach for skin tissue engineering.
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Affiliation(s)
- Fei Liu
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huateng Zhou
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weibin Du
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaolong Huang
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xuan Zheng
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Cui Zhang
- Institute Cell and Development, College of Life Science, Zhejiang University, Hangzhou, China
| | - Huahui Hu
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinfu Wang
- Institute Cell and Development, College of Life Science, Zhejiang University, Hangzhou, China
| | - Renfu Quan
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
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Corelattions Between CD31, CD68, MMP-2 and MMP-9 Expression in Allograft Cardiac Rejection – Immunohistochemical Study. ARS MEDICA TOMITANA 2020. [DOI: 10.2478/arsm-2019-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction. The cardiac allograft rejections from the post-transplant period are attributable to the acute cellular rejection monitored by multiple endomyocardial biopsies. Compared to this, humoral rejection remains a matter of debate, with multiple therapeutic strategies, poor prognosis, and persisting uncertainty about diagnostic criteria. Acute allograft rejection is associated with significant modifications of the extracellular matrix compartment mainly regulated by matrix metalloproteinases (MMPs). In this context, the aim of this study was to evaluate the expression of MMP-2 and -9 and CD31, CD68 (endothelial and histiocytic markers) and the correlations between them using immunohistochemistry, in patients with cardiac allografts.
Materials and methods. Tissue fragments were obtained by endomyocardial biopsy from 5 patients with allograft heart transplant, 2 in the medium post-transplant phase and 2 in late phase. After identifying and characterizing the morphological context the probes were processed by standard immunohistochemical technique using anti-MMP-2 and anti-MMP-9 antibodies (Santa Cruz Biotechnology, Inc.) and anti-CD31, anti-CD68 antibodies (Sigma). The samples were examined using the Olympus BX40 microscope with an Olympus E330 camera attached.
Results and discussions. Sample examination revealed in all 4 cases the lack of IR (-) for CD31 and weak IR (+) for CD68 compared to MMPs, where we found moderate IR (++) for MMP-9 and weak IR (+) for MMP-2. These aspects complets the histological lesional aspects of these cases, indicating the lack of acute rejection. In conclusion, CD31 and CD68 IR correlated with MMPs IR (especially MMP-9) appear to represent predictive markers for cardiac allograft rejection and require further studies.
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Nisar S, Roberson J, Carney B, Alkhalil A, Moffatt L, Shupp J. Further Histological and Cellular Characterization of Hidradenitis Suppurativa in 11 Patients. EPLASTY 2019; 19:e21. [PMID: 31885764 PMCID: PMC6916621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Background: Hidradenitis suppurativa is a chronic inflammatory skin disease, with significant morbidity secondary to its recurrent painful and exudative lesions. Given limited research on the cytoarchitecture of hidradenitis suppurativa, this study describes the microscopic structure and cell surface markers present in hidradenitis suppurativa tissue to better understand the disease and identify potential therapeutic targets. Methods: Skin biopsies of hidradenitis suppurativa lesions from patients who underwent surgical excision (n = 11) were compared with grossly normal-appearing perilesional skin (n = 5) and normal skin biopsies from unaffected individuals (n = 4). Histopathology and epidermal thickness were assessed using hematoxylin and eosin and picrosirius red staining, and CD3, a T-cell marker, and CD31 (PECAM), a vascular endothelial cell marker, were assayed using immunofluorescence. Data were analyzed and compared using analysis of variance and Student's t test. Results: Histological examination showed that hidradenitis suppurativa samples had a significantly thicker epidermal layer than normal skin (335.23 ± 165.01 µm vs 57.24 ± 18.43 µm, P = .005), extending into and engulfing the dermis. The hidradenitis suppurativa dermis had extensive cellular infiltration and aggregation as well as disorganized collagen. Immunofluorescence analysis revealed that, at the dermal level, hidradenitis suppurativa lesions had a significantly greater quantity of CD3+ (324.29 ± 139.28 vs 14.93 ±16.32, P < .0001) and CD31+ (322.15 ± 155.46 vs 2.84 ± 5.56, P < .0001) cells/mm2 compared with normal skin samples. Conclusions: Hidradenitis suppurativa lesions have thicker epidermal layers, more dermal cellular infiltrate, and disorganized collagen fibers compared with normal skin. Furthermore, hidradenitis suppurativa dermis has a greater quantity of CD3+ and CD31+ cells than normal skin.
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Affiliation(s)
- Saira Nisar
- aFirefighters’ Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC,bThe Burn Center, MedStar Washington Hospital Center, Washington, DC
| | - Jeffrey L. Roberson
- aFirefighters’ Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC,cDepartment of Surgery, The George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Bonnie C. Carney
- aFirefighters’ Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC,dDepartment of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC
| | - Abdulnaser Alkhalil
- aFirefighters’ Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC
| | - Lauren T. Moffatt
- aFirefighters’ Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC,dDepartment of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC
| | - Jeffrey W. Shupp
- aFirefighters’ Burn and Surgical Research Laboratory, MedStar Health Research Institute, Washington, DC,bThe Burn Center, MedStar Washington Hospital Center, Washington, DC,dDepartment of Biochemistry and Molecular and Cellular Biology, Georgetown University School of Medicine, Washington, DC,eDepartment of Surgery, MedStar Georgetown University Hospital, Washington, DC,Correspondence:
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Zhi H, Kanaji T, Fu G, Newman DK, Newman PJ. Generation of PECAM-1 (CD31) conditional knockout mice. Genesis 2019; 58:e23346. [PMID: 31729819 DOI: 10.1002/dvg.23346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/17/2019] [Accepted: 10/17/2019] [Indexed: 12/18/2022]
Abstract
Platelet endothelial cell adhesion molecule 1 (PECAM-1) is an adhesion and signaling receptor that is expressed on endothelial and hematopoietic cells and plays important roles in angiogenesis, vascular permeability, and regulation of cellular responsiveness. To better understanding the tissue specificity of PECAM-1 functions, we generated mice in which PECAM1, the gene encoding PECAM-1, could be conditionally knocked out. A targeting construct was created that contains loxP sites flanking PECAM1 exons 1 and 2 and a neomycin resistance gene flanked by flippase recognition target (FRT) sites that was positioned upstream of the 3' loxP site. The targeting construct was electroporated into C57BL/6 embryonic stem (ES) cells, and correctly targeted ES cells were injected into C57BL/6 blastocysts, which were implanted into pseudo-pregnant females. Resulting chimeric animals were bred with transgenic mice expressing Flippase 1 (FLP1) to remove the FRT-flanked neomycin resistance gene and mice heterozygous for the floxed PECAM1 allele were bred with each other to obtain homozygous PECAM1 flox/flox offspring, which expressed PECAM-1 at normal levels and had no overt phenotype. PECAM1 flox/flox mice were bred with mice expressing Cre recombinase under the control of the SRY-box containing gene 2 (Sox2Cre) promoter to delete the floxed PECAM1 allele in offspring (Sox2Cre;PECAM1 del/WT ), which were crossbred to generate Sox2Cre; PECAM1 del/del offspring. Sox2Cre; PECAM1 del/del mice recapitulated the phenotype of conventional global PECAM-1 knockout mice. PECAM1 flox/flox mice will be useful for studying distinct roles of PECAM-1 in tissue specific contexts and to gain insights into the roles that PECAM-1 plays in blood and vascular cell function.
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Affiliation(s)
- Huiying Zhi
- Blood Research Institute, Versiti, Milwaukee, Wisconsin
| | | | - Guoping Fu
- Blood Research Institute, Versiti, Milwaukee, Wisconsin
| | - Debra K Newman
- Blood Research Institute, Versiti, Milwaukee, Wisconsin.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin.,Department of Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Peter J Newman
- Blood Research Institute, Versiti, Milwaukee, Wisconsin.,Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin.,Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin
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Ishii N, Homma T, Lee J, Mitsuhashi H, Yamada KI, Kimura N, Yamamoto Y, Fujii AJ. Ascorbic acid and CoQ10 ameliorate the reproductive ability of superoxide dismutase 1-deficient female mice†. Biol Reprod 2019; 102:102-115. [DOI: 10.1093/biolre/ioz149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 01/07/2019] [Accepted: 07/30/2019] [Indexed: 01/01/2023] Open
Abstract
Abstract
Superoxide dismutase 1 suppresses oxidative stress within cells by decreasing the levels of superoxide anions. A dysfunction of the ovary and/or an aberrant production of sex hormones are suspected causes for infertility in superoxide dismutase 1-knockout mice. We report on attempts to rescue the infertility in female knockout mice by providing two antioxidants, ascorbic acid and/or coenzyme Q10, as supplements in the drinking water of the knockout mice after weaning and on an investigation of their reproductive ability. On the first parturition, 80% of the untreated knockout mice produced smaller litter sizes compared with wild-type mice (average 2.8 vs 7.3 pups/mouse), and supplementing with these antioxidants failed to improve these litter sizes. However, in the second parturition of the knockout mice, the parturition rate was increased from 18% to 44–75% as the result of the administration of antioxidants. While plasma levels of progesterone at 7.5 days of pregnancy were essentially the same between the wild-type and knockout mice and were not changed by the supplementation of these antioxidants, sizes of corpus luteum cells, which were smaller in the knockout mouse ovaries after the first parturition, were significantly ameliorated in the knockout mouse with the administration of the antioxidants. Moreover, the impaired vasculogenesis in uterus/placenta was also improved by ascorbic acid supplementation. We thus conclude that ascorbic acid and/or coenzyme Q10 are involved in maintaining ovarian and uterus/placenta homeostasis against insults that are augmented during pregnancy and that their use might have positive effects in terms of improving female fertility.
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Affiliation(s)
- Naoki Ishii
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Takujiro Homma
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Jaeyong Lee
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | | | - Ken-ichi Yamada
- Department of Bio-functional Science, Faculty of Pharmacological Science, Kyushu University, Fukuoka, Japan
- JST, PRESTO, Kawaguchi, Japan
| | - Naoko Kimura
- Laboratory of Animal Reproduction, Faculty of Agricultural Sciences, Yamagata University, Tsuruoka, Japan
| | | | - and Junichi Fujii
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
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32
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Caligiuri G. Mechanotransduction, immunoregulation, and metabolic functions of CD31 in cardiovascular pathophysiology. Cardiovasc Res 2019; 115:1425-1434. [DOI: 10.1093/cvr/cvz132] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/02/2019] [Accepted: 05/14/2019] [Indexed: 12/13/2022] Open
Abstract
Abstract
Biomechanical changes in the heart and vessels drive rapid and dynamic regulation of blood flow, a vital process for meeting the changing metabolic needs of the peripheral tissues at any given point in time. The fluid movement of the blood exerts haemodynamic stress upon the solid elements of the cardiovascular system: the heart, vessels, and cellular components of the blood. Cardiovascular diseases can lead to prolonged mechanical stress, such as cardiac remodelling during heart failure or vascular stiffening in atherosclerosis. This can lead to a significantly reduced or increasingly turbulent blood supply, inducing a shift in cellular metabolism that, amongst other effects, can trigger the release of reactive oxygen species and initiate a self-perpetuating cycle of inflammation and oxidative stress. CD31 is the most abundant constitutive co-signalling receptor glycoprotein on endothelial cells, which line the cardiovascular system and form the first-line of cellular contact with the blood. By associating with most endothelial receptors involved in mechanosensing, CD31 regulates the response to biomechanical stimuli. In addition, by relocating in the lipid rafts of endothelial cells as well as of cells stably interacting with the endothelium, including leucocytes and platelets, CD31–CD31 trans-homophilic engagement guides and restrains platelet and immune cell accumulation and activation and at sites of damage. In this way, CD31 is at the centre of mediating mechanical, metabolic, and immunological changes within the circulation and provides a single target that may have pleiotropic beneficial effects.
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Affiliation(s)
- Giuseppina Caligiuri
- Université de Paris, Cardiovascular Immunobiology, UMRS1148, INSERM, Paris, France
- Cardiology Department and Physiology Departments, AP-HP, University Hospital Xavier Bichat, 46 Rue Henri Huchard, Paris, France
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Zhang Y, Chao FL, Zhang L, Jiang L, Zhou CN, Chen LM, Lu W, Jiang R, Tang Y. Quantitative study of the capillaries within the white matter of the Tg2576 mouse model of Alzheimer's disease. Brain Behav 2019; 9:e01268. [PMID: 30900389 PMCID: PMC6456816 DOI: 10.1002/brb3.1268] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 02/25/2019] [Accepted: 03/02/2019] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION To quantitatively investigate the capillaries within the white matter of Tg2576 Alzheimer's disease (AD) transgenic mice during the early stage. METHODS In the current study, 10-month-old male Tg2576 AD mice were used as the early-stage AD group and age-matched nontransgenic littermate mice were used as the wild-type group. Then, the Morris water maze was used to examine the spatial learning and memory abilities of the mice in both groups, and unbiased stereological methods were used to accurately quantify the volume of white matter and the parameters of the capillaries within the white matter, such as the total length, total volume, and total surface area of capillaries. RESULTS The Morris water maze performance of the Tg2576 group was worse than that of the wild-type group, while the white matter volume did not significantly differ between the wild-type group and the Tg2576 group. The total length, total volume, and total surface area of the capillaries within the white matter of the Tg2576 group were significantly decreased compared to those of the wild-type group. CONCLUSIONS The current study provide structural basis for understanding the pathological changes of the early stage of AD and cognitive decline in AD might be associated with changes in the white matter capillaries. Capillaries within the white matter might, thus, serve as a valid target for the prevention and treatment of early-stage AD.
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Affiliation(s)
- Yi Zhang
- Department of Laboratory Medicine, Key Laboratory of Diagnostic Medicine, Ministry of Education, Chongqing Medical University, Chongqing, China.,Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Feng-Lei Chao
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Lei Zhang
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Lin Jiang
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Chun-Ni Zhou
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Lin-Mu Chen
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Wei Lu
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Rong Jiang
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
| | - Yong Tang
- Department of Histology and Embryology, Chongqing Medical University, Chongqing, China.,Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, China
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Guo F, Si C, Zhou M, Wang J, Zhang D, Leung PCK, Xu B, Zhang A. Decreased PECAM1-mediated TGF-β1 expression in the mid-secretory endometrium in women with recurrent implantation failure. Hum Reprod 2019; 33:832-843. [PMID: 29617817 DOI: 10.1093/humrep/dey022] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 03/21/2018] [Indexed: 12/21/2022] Open
Abstract
STUDY QUESTION Is recurrent implantation failure (RIF) associated with decreased expression of platelet and endothelial cell adhesion molecule 1 (PECAM1) and transforming growth factor β1 (TGF-β1) in the endometrium during the implantation window? SUMMARY ANSWER The present study demonstrates that the expression of PECAM1 and TGF-β1 is significantly decreased in the mid-secretory endometrium in women with RIF, which may account for embryo implantation failure. WHAT IS KNOWN ALREADY RIF has become a bottleneck issue that hampers the improvement of pregnancy rates in IVF-embryo transfer (IVF-ET). The causes of RIF are complex and may involve the dysregulation of various growth factors, metabolites, and inflammatory cytokines. At present, the precise pathogenesis of RIF has not been elucidated. STUDY DESIGN, SIZE, DURATION This was a prospective case-control study. Endometrial tissue samples were obtained from January 2014 to December 2016 from two groups of women who had undergone IVF (RIF group, 22 women who underwent ≥3 ETs including a total of ≥4 good-quality embryos without pregnancy, control group, 18 women who conceived in their first treatment cycle). At the same time, samples were obtained from 18 women with infertility secondary to tubal factor in the early proliferative, late proliferative and mid-secretory phases of the menstrual cycle (n = 6 per group). Samples used for isolation of primary human endometrial epithelial cells and stromal cells (HEECs and HESCs) were collected in December 2017 from six women with infertility secondary to tubal factor. PARTICIPANTS/MATERIALS, SETTING, METHODS We investigated gene expression using integrative whole genome expression microarray analysis, including differentially expressed gene screening, principal component analysis, and functional enrichment analysis. RT-qPCR, western blotting, immunohistochemistry, immunofluorescence co-localization analysis and short hairpin RNA (shRNA) plasmid transfection in Ishikawa cell line, HEECs and HESCs were used to investigate the expression of PECAM1 and TGF-β1. MAIN RESULTS AND THE ROLE OF CHANCE Integrative data mining of whole-genome expression profiles identified cell adhesion as a key regulator in RIF. Database retrieval and literature review screened several novel cell adhesion-related genes that might participate in embryo implantation, which include PECAM1, intercellular adhesion molecule 2 (ICAM2), integrin subunit β2 (ITGB2), selectin P (SELP) and TEK receptor tyrosine kinase (TEK). Among these targets, the mRNA and protein levels of PECAM1 were significantly lower in the RIF group than those in the control group. During the menstrual cycles of women with secondary infertility, the protein expression level of PECAM1 was the lowest in early proliferative phase, slightly increased in late proliferative phase and was the highest in mid-secretory phase. While the expression level of HOXA10, an endometrial receptivity marker, kept at a low level in early proliferative phase and increased in late proliferative phase, then maintained at a high level in the mid-secretory phase. Furthermore, TGF-β1, mediated by PECAM1, was also decreased significantly in the RIF group. Using shRNA-based approach, we demonstrated that the depletion of PECAM1 significantly decreased the expression of TGF-β1 in Ishikawa cells, as well as in primary HEECs and HESCs. These results indicated that PECAM1 and TGF-β1 might play a pivotal role in modulating endometrial receptivity. LIMITATIONS REASONS FOR CAUTION Although we have shown that PECAM1 and TGF-β1 were down-regulated in the women with RIF, the molecular mechanism of the effect of the factors on the endometrial receptivity remain unclear. WIDER IMPLICATIONS OF THE FINDINGS Our findings provide insight into the contribution of PECAM1 and TGF-β1 in regulating implantation, which could be used to develop potential therapeutic methods for RIF. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by grants from the National Natural Science Foundation of China (Nos. 81771656 and 81370763), Special fund for clinical research of the Chinese Medical Association (No. 16020480664), and the Merck Serono China Research Fund for Fertility Agreement. The authors have no competing interests.
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Affiliation(s)
- Feng Guo
- Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Chenchen Si
- Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Mingjuan Zhou
- Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Jingwen Wang
- Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Dan Zhang
- Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Room 317, 950 West 28 Avenue, Vancouver, British Columbia, Canada V5Z 4H4
| | - Bufang Xu
- Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Aijun Zhang
- Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China.,Shanghai Key Laboratory of Reproductive Medicine, 280 South Chongqing Road, Shanghai 200025, China
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Fike AJ, Kumova OK, Tardif VJ, Carey AJ. Neonatal influenza-specific effector CTLs retain elevated CD31 levels at the site of infection and have decreased IFN-γ production. J Leukoc Biol 2018; 105:539-549. [PMID: 30536476 DOI: 10.1002/jlb.4a0518-191r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 10/08/2018] [Accepted: 11/05/2018] [Indexed: 12/12/2022] Open
Abstract
The underlying mechanisms that regulate neonatal immune suppression are poorly characterized. CD31 (PECAM1) is highly expressed on neonatal lymphocytes and is a known modulator of TCR signaling. To further characterize the role of CD31 in the neonatal CTL response, 3-d and 7-d-old murine neonates were infected with influenza virus and compared to adults. The majority of the pulmonary viral-specific CTLs in the 3-d-old murine neonate retain CD31 expression, whereas adult CTLs have decreased CD31 expression. In addition, CD31+ neonatal viral-specific CTLs demonstrate decreased IFN-γ production, decreased proliferative capacity, and increased likelihood of death. At the peak of infection, sorted neonatal effector CTLs continue to transcribe CD31, indicating a developmental regulation of expression. To explore potential mechanisms for this reduced function, we compared the expression of the transcription factors Eomesodermin (Eomes) and T-bet; there was a significant increase in Eomes paired with a reduction in T-bet in CD31+ neonatal effector CTLs in the lung. Furthermore, in vitro stimulated neonatal CTLs significantly reduce IFN-γ production upon CD31 signaling. Altogether, these data indicate that neonatal CTLs may retain elevated levels of CD31 to maintain peripheral T cell suppression during the bridge to ex utero life.
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Affiliation(s)
- Adam J Fike
- Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.,Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Ogan K Kumova
- Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Virginie J Tardif
- Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Alison J Carey
- Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.,Pediatrics, St. Christopher's Hospital for Children, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
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Cheung KCP, Marelli-Berg FM. Isolation of Microvascular Endothelial Cells. Bio Protoc 2018; 8:e2886. [PMID: 34285995 DOI: 10.21769/bioprotoc.2886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/19/2018] [Accepted: 06/01/2018] [Indexed: 11/02/2022] Open
Abstract
The vascular endothelium is essential to normal vascular homeostasis. Its dysfunction participates in various cardiovascular disorders. Murine endothelial cell culture is an important tool for cardiovascular disease research. This protocol demonstrates a quick, efficient method for the isolation of microvascular endothelial cells from murine tissues without any special equipment. To isolate endothelial cells, the lung or heart were mechanically minced and enzymatically digested with collagenase and trypsin. The single cell suspension obtained was then incubated with an anti-CD31, anti-CD105 antibody and with biotinylated isolectin B-4. The endothelial cells were harvested using magnetic bead separation with rat anti-mouse Ig- and streptavidin-conjugated microbeads. Endothelial cells were expanded and collected for subsequent analyses. The morphological and phenotypic features of these cultures remained stable over 10 passages in culture. There was no overgrowth of contaminating cells of non-endothelial origin at any stage.
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Affiliation(s)
- Kenneth C P Cheung
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, United Kingdom
| | - Federica M Marelli-Berg
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, United Kingdom
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37
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Ramos-Vara JA, Miller MA, Dusold DM. Immunohistochemical Expression of CD31 (PECAM-1) in Nonendothelial Tumors of Dogs. Vet Pathol 2018; 55:402-408. [PMID: 29343200 DOI: 10.1177/0300985817751217] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
CD31 immunoreactivity has been reported in human nonendothelial tumors of both epithelial and mesenchymal origin. This study examined CD31 immunoreactivity of 347 formalin-fixed, paraffin-embedded normal, nonneoplastic, and neoplastic canine tissues. CD31 expression was considered positive if at least 10% of the cell population had membranous reactivity. Labeling with the CD31 antibody (clone JC/70A) was observed in 16 samples of normal organs (liver, kidney, lymph node), 6 of 6 specimens of hepatic nodular hyperplasia, 3 of 3 hepatic regenerative nodules, 1 of 4 anal sac carcinomas, 6 of 6 hemangiosarcomas, 18 of 20 hepatocellular carcinomas, 1 of 6 mammary carcinomas, 3 of 5 plasmacytomas, 18 of 53 renal cell carcinomas, and 1 of 5 cutaneous histiocytomas. CD31 expression did not correlate with case outcome in hepatocellular or renal cell carcinomas. Although distinguishing hemangiosarcoma from other neoplasms is typically straightforward, pathologists should be aware of potential cross-reactivity when relying on CD31 immunohistochemistry for diagnosis, particularly in small biopsy samples or when faced with an epithelioid or poorly differentiated vascular neoplasm.
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Affiliation(s)
- José A Ramos-Vara
- 1 Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA
| | - Margaret A Miller
- 1 Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA
| | - Dee M Dusold
- 1 Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA
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Abstract
Isolation and culture of endothelial cells (ECs) is a useful tool to study the cellular processes involved in vascular development and vascular maturation. In this chapter, we describe a method to isolate and culture endothelial cells from placentae. This method takes advantage of two transgenes: ROSA26 mT/mG , which drives the expression of GFP upon Cre-mediated recombination, and Tie2-Cre, which expresses Cre driven by the Tie2 promoter in endothelial progenitors and their descendants. GFP-expressing endothelial cells are isolated through fluorescence-activated cell sorting (FACS). The sorted cells express the endothelial marker CD31. This method can be used to study the morphological and physiological properties of placental endothelial cells in mice carrying mutations affecting vascular development.
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Affiliation(s)
- Lijun Chi
- Translational Medicine, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, ON, Canada
| | - Paul Delgado-Olguin
- Translational Medicine, The Hospital for Sick Children, 686 Bay Street, Toronto, Ontario, M5G0A4, Canada. .,Department of Molecular Genetics, University of Toronto, 1 King's College Cir, Toronto, ON, M5S 1A8, Canada. .,Heart & Stroke/Richard Lewar Centres of Excellence in Cardiovascular Research, 6 Queen's Park Cres W, Toronto, ON, M5S3H2, Canada.
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Venkataramani V, Küffer S, Cheung KCP, Jiang X, Trümper L, Wulf GG, Ströbel P. CD31 Expression Determines Redox Status and Chemoresistance in Human Angiosarcomas. Clin Cancer Res 2017; 24:460-473. [PMID: 29084920 DOI: 10.1158/1078-0432.ccr-17-1778] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/14/2017] [Accepted: 10/23/2017] [Indexed: 12/28/2022]
Abstract
Purpose: Angiosarcomas are soft tissue sarcomas with endothelial differentiation and vasoformative capacity. Most angiosarcomas show strong constitutive expression of the endothelial adhesion receptor CD31/PECAM-1 pointing to an important role of this molecule. However, the biological function of CD31 in angiosarcomas is unknown.Experimental Design: The expression levels of CD31 in angiosarcoma cells and its effects on cell viability, colony formation, and chemoresistance were evaluated in human angiosarcoma clinical samples and in cell lines through isolation of CD31high and CD31low cell subsets. The redox-regulatory CD31 function linked to YAP signaling was determined using a CD31-blocking antibody and siRNA approach and was further validated in CD31-knockout endothelial cells.Results: We found that most angiosarcomas contain a small CD31low cell population. CD31low cells had lost part of their endothelial properties and were more tumorigenic and chemoresistant than CD31high cells due to more efficient reactive oxygen species (ROS) detoxification. Active downregulation of CD31 resulted in loss of endothelial tube formation, nuclear accumulation of YAP, and YAP-dependent induction of antioxidative enzymes. Addition of pazopanib, a known enhancer of proteasomal YAP degradation resensitized CD31low cells for doxorubicin resulting in growth suppression and induction of apoptosis.Conclusions: Human angiosarcomas contain a small aggressive CD31low population that have lost part of their endothelial differentiation programs and are more resistant against oxidative stress and DNA damage due to intensified YAP signaling. Our finding that the addition of YAP inhibitors can resensitize CD31low cells toward doxorubicin may aid in the rational development of novel combination therapies to treat angiosarcomas. Clin Cancer Res; 24(2); 460-73. ©2017 AACR.
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Affiliation(s)
- Vivek Venkataramani
- Department of Hematology and Medical Oncology, University Medical Center Göttingen (UMG), Göttingen, Germany. .,Cell Biology Program, Memorial Sloan Kettering Cancer Center, Göttingen, Germany
| | - Stefan Küffer
- Institute of Pathology, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - Kenneth C P Cheung
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Xuejun Jiang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, Göttingen, Germany
| | - Lorenz Trümper
- Department of Hematology and Medical Oncology, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - Gerald G Wulf
- Department of Hematology and Medical Oncology, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - Philipp Ströbel
- Institute of Pathology, University Medical Center Göttingen (UMG), Göttingen, Germany
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Platelet Endothelial Cell Adhesion Molecule-1 and Oligodendrogenesis: Significance in Alcohol Use Disorders. Brain Sci 2017; 7:brainsci7100131. [PMID: 29035306 PMCID: PMC5664058 DOI: 10.3390/brainsci7100131] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/01/2017] [Accepted: 10/07/2017] [Indexed: 12/11/2022] Open
Abstract
Alcoholism is a chronic relapsing disorder with few therapeutic strategies that address the core pathophysiology. Brain tissue loss and oxidative damage are key components of alcoholism, such that reversal of these phenomena may help break the addictive cycle in alcohol use disorder (AUD). The current review focuses on platelet endothelial cell adhesion molecule 1 (PECAM-1), a key modulator of the cerebral endothelial integrity and neuroinflammation, and a targetable transmembrane protein whose interaction within AUD has not been well explored. The current review will elaborate on the function of PECAM-1 in physiology and pathology and infer its contribution in AUD neuropathology. Recent research reveals that oligodendrocytes, whose primary function is myelination of neurons in the brain, are a key component in new learning and adaptation to environmental challenges. The current review briefly introduces the role of oligodendrocytes in healthy physiology and neuropathology. Importantly, we will highlight the recent evidence of dysregulation of oligodendrocytes in the context of AUD and then discuss their potential interaction with PECAM-1 on the cerebral endothelium.
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Lia G, Brunello L, Bruno S, Carpanetto A, Omedè P, Festuccia M, Tosti L, Maffini E, Giaccone L, Arpinati M, Ciccone G, Boccadoro M, Evangelista A, Camussi G, Bruno B. Extracellular vesicles as potential biomarkers of acute graft-vs-host disease. Leukemia 2017; 32:765-773. [PMID: 28852198 DOI: 10.1038/leu.2017.277] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/31/2017] [Accepted: 08/17/2017] [Indexed: 02/06/2023]
Abstract
Acute graft-vs-host disease (GVHD) is a serious complication after allografting. We carried out an exploratory study to investigate a potential correlation of surface antigens on extracellular vesicles (EVs) and acute GVHD. EVs were extracted from serum samples from 41 multiple myeloma patients who underwent allografting. EVs were characterized by flow cytometry using a panel of 13 antibodies against specific membrane proteins that were reported to be predictive of acute GVHD. We observed a correlation between three potential biomarkers expressed on EV surface and acute GVHD onset by both logistic regression analysis and Cox proportional hazard model. In our study, CD146 (MCAM-1) was correlated with an increased risk-by almost 60%-of developing GVHD, whereas CD31 and CD140-α (PECAM-1 and PDGFR-α) with a decreased risk-by almost 40 and 60%, respectively. These biomarkers also showed a significant change in signal level from baseline to the onset of acute GVHD. Our novel study encourages future investigations into the potential correlation between EVs and acute GVHD. Larger prospective multicenter studies are currently in progress.
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Affiliation(s)
- G Lia
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
| | - L Brunello
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
| | - S Bruno
- Dipartimento di Scienze Mediche, Università degli Studi di Torino, Centro di Biotecnologie Molecolari, Torino, Italy
| | - A Carpanetto
- Dipartimento di Scienze Mediche, Università degli Studi di Torino, Centro di Biotecnologie Molecolari, Torino, Italy
| | - P Omedè
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy
| | - M Festuccia
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
| | - L Tosti
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
| | - E Maffini
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
| | - L Giaccone
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
| | - M Arpinati
- Dipartimento di Ematologia e Scienze Oncologiche 'L. e A. Seràgnoli', Università di Bologna, Bologna, Italy
| | - G Ciccone
- A.O.U. Città della Salute e della Scienza di Torino, Epidemiologia Clinica, Torino, Italy
| | - M Boccadoro
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
| | - A Evangelista
- A.O.U. Città della Salute e della Scienza di Torino, Epidemiologia Clinica, Torino, Italy
| | - G Camussi
- Dipartimento di Scienze Mediche, Università degli Studi di Torino, Centro di Biotecnologie Molecolari, Torino, Italy
| | - B Bruno
- A.O.U. Città della Salute e della Scienza di Torino, Dipartimento di Oncologia, SSD Trapianto Allogenico di Cellule Staminali, Torino, Italy.,Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università di Torino, School of Medicine, Torino, Italy
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Characterization of CD31 expression on murine and human neonatal T lymphocytes during development and activation. Pediatr Res 2017; 82:133-140. [PMID: 28355204 PMCID: PMC5509503 DOI: 10.1038/pr.2017.81] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/11/2017] [Indexed: 01/26/2023]
Abstract
BackgroundCD31, expressed by the majority of the neonatal T-cell pool, is involved in modulation of T-cell receptor signaling by increasing the threshold for T-cell activation. Therefore, CD31 could modulate neonatal tolerance and adaptive immune responses.MethodsLymphocytes were harvested from murine neonates at different ages, human late preterm and term cord blood, and adult peripheral blood. Human samples were activated over a 5-day period to simulate acute inflammation. Mice were infected with influenza; lungs and spleens were harvested at days 6 and 9 post infection and analyzed by flow cytometry.ResultsCD31-expressing neonatal murine CD4+ and CD8a+ T cells increase over the first week of life. Upon in vitro stimulation, human infants' CD4+ and CD8a+ T cells shed CD31 faster in comparison with adults. In the context of acute infection, mice infected at 3 days of age have an increased number of naive and activated CD31+ T lymphocytes at the site of infection at days 6 and 9 post infection, as compared with those infected at 7 days of age; however, the opposite is true in the periphery.ConclusionDifferences in trafficking of CD31+ cytotoxic T lymphocytes (CTLs) during acute influenza infection could modulate tolerance and contribute to a dampened adaptive immune response in neonates.
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Morgul MH, Splith K, Leonhardt C, Raschzok N, Reutzel-Selke A, Schmuck RB, Andreou A, Atanasov G, Benzing C, Krenzien F, Hau HM, Felgendreff P, Klunk S, Pratschke J, Sauer IM, Schmelzle M. The value of microparticles in detecting acute rejection episodes after liver transplantation. Biomarkers 2017; 23:25-32. [PMID: 28303731 DOI: 10.1080/1354750x.2017.1306754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
CONTEXT Non-invasive markers for diagnosis of acute rejection (AR) following liver transplantation have not been developed, yet. OBJECTIVE We analyzed the correlation of plasma microparticle levels (MP) with AR. MATERIALS AND METHODS MP (CD4, CD8, CD25, CD31, MHC) of 11 AR patients and 11 controls were analyzed within the first week after transplantation. RESULTS CD4, CD8 and CD31 positive MP were higher in the AR, whereas overall MP count, CD25 and MHCI positive MP proportions did not differ between both groups. DISCUSSION AND CONCLUSION MP dynamics within the first period of transplantation could help to clarify on-going mechanisms of immunomodulation.
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Affiliation(s)
- Mehmet Haluk Morgul
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Katrin Splith
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Christoph Leonhardt
- b Department of Medicine I Cardiology, Angiology and Intensive Care , General Hospital Chemnitz gGmbH , Chemnitz , Germany
| | - Nathanael Raschzok
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Anja Reutzel-Selke
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Rosa Bianca Schmuck
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Andreas Andreou
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Georgi Atanasov
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Christian Benzing
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Felix Krenzien
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Hans-Michael Hau
- c Department of Visceral , Transplant, Thoracic, and Vascular Surgery, University Hospital Leipzig , Leipzig , Germany
| | - Philipp Felgendreff
- d Department of General , Visceral, and Vascular Surgery, University Hospital Jena , Jena , Germany
| | - Sergej Klunk
- e Department of Traumatology, Hand and Orthopedic Surgery , Harzklinikum Dorothea Christiane Erxleben GmbH , Quedlinburg , Germany
| | - Johann Pratschke
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Igor Maximillian Sauer
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Moritz Schmelzle
- a Department of Surgery , Campus Charité Mitte
- Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin , Berlin , Germany
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Završnik M, Kariž S, Makuc J, Šeruga M, Cilenšek I, Petrovič D. PECAM-1 Leu125Val (rs688) Polymorphism and Diabetic Nephropathy in Caucasians with Type 2 Diabetes Mellitus. Anal Cell Pathol (Amst) 2016; 2016:3152967. [PMID: 28116228 PMCID: PMC5225318 DOI: 10.1155/2016/3152967] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/07/2016] [Indexed: 12/30/2022] Open
Abstract
Objectives. Platelet endothelial cell adhesion molecule-1 (PECAM-1) plays a key role in the transendothelial migration of circulating leukocytes during inflammation and in the maintenance of vascular endothelial integrity. We hypothesized that genetic variation in PECAM-1 gene could be associated with diabetic nephropathy (DN) and with the level of soluble PECAM-1 in Caucasians with type 2 diabetes mellitus (T2DM). Design and Methods. We analyzed the rs688 single nucleotide polymorphism of PECAM-1 gene C373G (Leu125Val) at exon 3, which encodes the first extracellular Ig-like domain that mediates the homophilic binding of PECAM-1, in 276 T2DM subjects with documented DN (cases) and 375 T2DM subjects without DN (controls), using a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) strategy. Level of plasma soluble PECAM-1 (sPECAM-1) was measured by ELISA in a subpopulation of 120 diabetics with DN. Results. We found no association between the Leu125Val polymorphism and DN in subjects with T2DM. Likewise, the Leu125Val polymorphism was not associated with serum sPECAM-1 levels in a subpopulation of 120 diabetics with DN. Conclusion. The Leu125Val polymorphism of PECAM-1 and the level of sPECAM-1 are not associated with DN in T2DM subjects of Slovenian origin.
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Affiliation(s)
- Matej Završnik
- University Medical Centre Maribor, Clinic for Internal Medicine, Department for Diabetes and Metabolic Diseases, Maribor, Slovenia
| | - Stojan Kariž
- General Hospital Izola, Department of Internal Medicine, Izola, Slovenia
| | - Jana Makuc
- General Hospital Slovenj Gradec, Department of Internal Medicine, Slovenj Gradec, Slovenia
| | - Maja Šeruga
- General Hospital Murska Sobota, Department of Internal Medicine, Murska Sobota, Slovenia
| | - Ines Cilenšek
- Faculty of Medicine, Institute of Histology and Embryology, University of Ljubljana, Ljubljana, Slovenia
| | - Daniel Petrovič
- Faculty of Medicine, Institute of Histology and Embryology, University of Ljubljana, Ljubljana, Slovenia
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Abstract
PURPOSE OF REVIEW The purpose of this article is to describe the function of the vascular cell adhesion and signaling molecule, platelet/endothelial cell adhesion molecule-1 (PECAM-1), in endothelial cells, with special emphasis on its role in maintaining and restoring the vascular permeability barrier following disruption of the endothelial cell junction. RECENT FINDINGS In addition to its role as an inhibitory receptor in circulating platelets and leukocytes, PECAM-1 is highly expressed at endothelial cell-cell junctions, where it functions as an adhesive stress-response protein to both maintain endothelial cell junctional integrity and speed restoration of the vascular permeability barrier following inflammatory or thrombotic challenge. SUMMARY Owing to the unique ability of antibodies that bind the membrane proximal region of the extracellular domain to trigger conformational changes leading to affinity modulation and homophilic adhesion strengthening, PECAM-1 might be an attractive target for treating vascular permeability disorders.
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Somkuwar SS, Fannon-Pavlich MJ, Ghofranian A, Quigley JA, Dutta RR, Galinato MH, Mandyam CD. Wheel running reduces ethanol seeking by increasing neuronal activation and reducing oligodendroglial/neuroinflammatory factors in the medial prefrontal cortex. Brain Behav Immun 2016; 58:357-368. [PMID: 27542327 PMCID: PMC5067224 DOI: 10.1016/j.bbi.2016.08.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 07/26/2016] [Accepted: 08/09/2016] [Indexed: 12/13/2022] Open
Abstract
The therapeutic effects of wheel running (WR) during abstinence on reinstatement of ethanol seeking behaviors in rats that self-administered ethanol only (ethanol drinking, ED) or ED with concurrent chronic intermittent ethanol vapor experience (CIE-ED) were investigated. Neuronal activation as well as oligodendroglial and neuroinflammatory factors were measured in the medial prefrontal cortex (mPFC) tissue to determine cellular correlates associated with enhanced ethanol seeking. CIE-ED rats demonstrated escalated and unregulated intake of ethanol and maintained higher drinking than ED rats during abstinence. CIE-ED rats were more resistant to extinction from ethanol self-administration, however, demonstrated similar ethanol seeking triggered by ethanol contextual cues compared to ED rats. Enhanced seeking was associated with reduced neuronal activation, and increased number of myelinating oligodendrocyte progenitors and PECAM-1 expression in the mPFC, indicating enhanced oligodendroglial and neuroinflammatory response during abstinence. WR during abstinence enhanced self-administration in ED rats, indicating a deprivation effect. WR reduced reinstatement of ethanol seeking in CIE-ED and ED rats, indicating protection against relapse. The reduced ethanol seeking was associated with enhanced neuronal activation, reduced number of myelinating oligodendrocyte progenitors, and reduced PECAM-1 expression. The current findings demonstrate a protective role of WR during abstinence in reducing ethanol seeking triggered by ethanol contextual cues and establish a role for oligodendroglia-neuroinflammatory response in ethanol seeking. Taken together, enhanced oligodendroglia-neuroinflammatory response during abstinence may contribute to brain trauma in chronic alcohol drinking subjects and be a risk factor for enhanced propensity for alcohol relapse.
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Affiliation(s)
- Sucharita S Somkuwar
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - McKenzie J Fannon-Pavlich
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Atoosa Ghofranian
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Jacqueline A Quigley
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Rahul R Dutta
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Melissa H Galinato
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Chitra D Mandyam
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA.
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Hsu MC, Weber CN, Mohammed MA, Gade TP, Hunt S, Nadolski GJ, Clark TWI. Thermal Changes during Rheolytic Mechanical Thrombectomy. J Vasc Interv Radiol 2016; 27:905-12. [PMID: 27103145 DOI: 10.1016/j.jvir.2016.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/04/2016] [Accepted: 02/06/2016] [Indexed: 11/25/2022] Open
Abstract
PURPOSE To characterize thermal changes induced by rheolytic thrombectomy (RT) within an ex vivo venous model and evaluate resultant changes of endothelial and vessel wall injury. MATERIALS AND METHODS Patent human saphenous vein segments without thrombus were mounted in an ex vivo perfusion system with a temperature probe apposed to the adventitial surface. RT was performed over a guide wire to facilitate device centering. Continuous RT was performed for 4 minutes with temperature recorded every 10 seconds. Pulsed RT was performed for eight cycles of 30 seconds followed by 10 seconds of deactivation. Mean temperature increase, maximum temperature (Tmax), intimal/medial thickness, endothelial cell staining (CD31), and heat shock protein 90 (HSP90) expression were compared between untreated and RT-treated venous segments. RESULTS Continuous RT produced a mean 7.6°C increase in temperature above baseline with mean Tmax of 44.1°C. Pulsed RT produced a mean 7.3°C increase in temperature and mean Tmax of 43.8°C. Differences in mean temperature increase (P = .66) and Tmax (P = .71) between the two groups were not statistically significant. RT-treated segments showed intima/media thinning (0.32 mm before RT and 0.18 mm after RT; P = .004) and reduction in intact endothelium (38.8% before RT and 13.8% after RT; P = .002). Staining for HSP90 showed a 3.1% increase in expression after RT (P = .31). CONCLUSIONS RT in this venous model showed reproducible increases in vessel temperature and evidence of endothelial and vessel wall injury. Avoiding prolonged RT application to a focal vascular segment during clinical use may be beneficial.
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Affiliation(s)
- Michael C Hsu
- Section of Interventional Radiology, Department of Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania; Penn Image Guided Interventions Laboratory, G.J.N.), Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania
| | - Charles N Weber
- Section of Interventional Radiology, Department of Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania; Penn Image Guided Interventions Laboratory, G.J.N.), Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania
| | - Mustafa A Mohammed
- Penn Image Guided Interventions Laboratory, G.J.N.), Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania
| | - Terence P Gade
- Section of Interventional Radiology, Department of Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania; Penn Image Guided Interventions Laboratory, G.J.N.), Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania
| | - Stephen Hunt
- Section of Interventional Radiology, Department of Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania; Penn Image Guided Interventions Laboratory, G.J.N.), Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania
| | - Gregory J Nadolski
- Section of Interventional Radiology, Department of Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Timothy W I Clark
- Section of Interventional Radiology, Department of Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
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Wang Y, Chen Z, Luo G, He W, Xu K, Xu R, Lei Q, Tan J, Wu J, Xing M. In-Situ-Generated Vasoactive Intestinal Peptide Loaded Microspheres in Mussel-Inspired Polycaprolactone Nanosheets Creating Spatiotemporal Releasing Microenvironment to Promote Wound Healing and Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7411-7421. [PMID: 26914154 DOI: 10.1021/acsami.5b11332] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Vasoactive intestinal peptide (VIP) was reported to promote angiogenesis. Electrospun nanofibers lead to idea wound dressing substrates. Here we report a convenient and novel method to produce VIP loaded microspheres in polycaprolactone (PCL) nanofibrous membrane without complicated processes. We first coated mussel-inspired dopamine (DA) to nanofibers, then used strong adhesive DA to absorb the functional peptide. PCL membrane was then immersed into acetone to generate microspheres with VIP loading. We employed high pressure liquid chromatography to record encapsulation efficiency of (31.8 ± 2.2)% and loading capacity of (1.71 ± 0.16)%. The release profile of VIP from nanosheets showed a prolonged release. The results of laser scanning confocal microscope, scanning electron microscope and cell counting kit-8 proliferation assays showed that cell adhesion and proliferation were promoted. In order to verify the efficacy on wound healing, in vivo implantation was applied in the full-thickness defect wounds of BALB/c mice. Results showed that the wound healing was significantly promoted via favoring the growth of granulation tissue and angiogenesis. However, we found wound re-epithelialization was not significantly improved. The resulting VIP-DA-coated PCL (PCL-DA-VIP) nanosheets with spatiotemporal delivery of VIP could be a potential application in wound treatment and vascular tissue engineering.
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Affiliation(s)
- Yuzhen Wang
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Zhiqiang Chen
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Weifeng He
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Kaige Xu
- Department of Mechanical Engineering, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Department of Biochemistry and Medical Genetics, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Children's Hospital Research Institute of Manitoba , Winnipeg, Manitoba R3E 3P4, Canada
| | - Rui Xu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Qiang Lei
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Jianglin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Jun Wu
- Institute of Burn Research, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, The Third Military Medical University , Chongqing 400038, China
- Chongqing Key Laboratory for Disease Proteomics , Chongqing 400038, China
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Department of Biochemistry and Medical Genetics, University of Manitoba , Winnipeg Manitoba R3T 2N2, Canada
- Children's Hospital Research Institute of Manitoba , Winnipeg, Manitoba R3E 3P4, Canada
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Soothing touch of CD31 protects endothelium during cellular immune responses. Proc Natl Acad Sci U S A 2015; 112:13133-4. [PMID: 26483460 DOI: 10.1073/pnas.1517580112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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