0000000000368055

AUTHOR

Francesca Zazzeroni

showing 4 related works from this author

Perivascular Cells in Diffuse Cutaneous Systemic Sclerosis Overexpress Activated ADAM12 and Are Involved in Myofibroblast Transdifferentiation and De…

2016

Objective.Microvascular damage is pivotal in the pathogenesis of systemic sclerosis (SSc), preceding fibrosis, and whose trigger is not still fully understood. Perivascular progenitor cells, with profibrotic activity and function, are identified by the expression of the isoform 12 of ADAM (ADAM12) and this molecule may be upregulated by transforming growth factor-β (TGF-β). The goal of this work was to evaluate whether pericytes in the skin of patients with diffuse cutaneous SSc (dcSSc) expressed ADAM12, suggesting their potential contribution to the fibrotic process, and whether TGF-β might modulate this molecule.Methods.After ethical approval, mesenchymal stem cells (MSC) and fibroblasts …

0301 basic medicineAdultMalePathologymedicine.medical_specialtyImmunologyADAM12 Protein03 medical and health sciencesYoung AdultRheumatologyFibrosisTransforming Growth Factor betamedicineImmunology and AllergyHumansProgenitor cellMyofibroblastsSkinintegumentary systembusiness.industryMedicine (all)FIBROSIS; PERICYTE; SYSTEMIC SCLEROSIS; Rheumatology; Immunology; Immunology and AllergyMesenchymal stem cellTransdifferentiationMesenchymal Stem CellsMiddle Agedmedicine.diseaseFibrosisActinsUp-RegulationSettore MED/16 - Reumatologia030104 developmental biologymedicine.anatomical_structurePERICYTEFIBROSIS; PERICYTE; SYSTEMIC SCLEROSIS; Immunology and Allergy; Rheumatology; Immunology; Medicine (all)SYSTEMIC SCLEROSISCell TransdifferentiationScleroderma DiffuseFemalePericyteBone marrowbusinessPericytesMyofibroblastTransforming growth factorThe Journal of rheumatology
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Blocking Jak/STAT signalling using tofacitinib inhibits angiogenesis in experimental arthritis

2021

Abstract Objective During rheumatoid arthritis (RA), the angiogenic processes, occurring with pannus-formation, may be a therapeutic target. JAK/STAT-pathway may play a role and the aim of this work was to investigate the inhibiting role of a JAK-inhibitor, tofacitinib, on the angiogenic mechanisms occurring during RA. Methods After ethical approval, JAK-1, JAK-3, STAT-1, STAT-3 and VEGF expression was evaluated on RA-synovial-tissues. In vitro, endothelial cells (ECs), stimulated with 20 ng/ml of VEGF and/or 1 μM of tofacitinib, were assessed for tube formation, migration and proliferation, by Matrigel, Boyden chamber assay and ki67 gene-expression. In vivo, 32 mice received collagen (coll…

medicine.medical_specialtyAngiogenesisArthritisDiseases of the musculoskeletal systemPharmacologyPyrroleMiceRheumatoid arthritis Angiogenesis TofacitinibPiperidinePiperidinesIn vivoInternal medicineMedicineAnimalsHumansPyrrolesRheumatoid arthritisRheumatoid arthritiTube formationMatrigelEndothelial CellTofacitinibbusiness.industryAnimalSynovial MembraneEndothelial Cellsmedicine.diseaseArthritis ExperimentalRheumatologyAngiogenesiPyrimidinesPyrimidineRC925-935TofacitinibRheumatoid arthritisAngiogenesisbusinessHumanResearch Article
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Additional file 2 of Blocking Jak/STAT signalling using tofacitinib inhibits angiogenesis in experimental arthritis

2021

Additional file 2: Supplementary material 2. Arthritis score evaluation. The histogram showed the median and the range of the arthritis score evaluated the day 35. The collagen induced a significant increase of arthritis score when compared to control group, and 30 mg/Kg/day of tofacitinib prevented the increase of arthritis score (**=p=0.001; ***= p

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Additional file 1 of Blocking Jak/STAT signalling using tofacitinib inhibits angiogenesis in experimental arthritis

2021

Additional file 1: Supplementary material 1. Mice treatments. The first day (day 0) of the procedure, 64 DBA/1 J mice were divided in 2 groups. One control group (n=32) receiving saline solution and one CIA group (n=32) receiving 100 μg of bovine type II collagen, emulsified with an equal volume of Freund’s complete adjuvant. After 18 days, the control group received saline solution and CIA mice received type II collagen and Freund’s incomplete adjuvant. At the day 19, controls and CIA mice were divided into 2 subgroups: one receiving vehicle (n=16) and one receiving 30 mg/kg/day of tofacitinib (n=16). After 35 days the first collagen administration, the mice were sacrificed and the blood c…

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