Letizia De Chiara

ORCID: 0000-0002-8548-2031
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Renal and related cancers
  • Renal Diseases and Glomerulopathies
  • Pluripotent Stem Cells Research
  • Climate Change and Health Impacts
  • Organ Donation and Transplantation
  • Chronic Kidney Disease and Diabetes
  • Biomedical Research and Pathophysiology
  • Genetic and Kidney Cyst Diseases
  • Dialysis and Renal Disease Management
  • Acute Kidney Injury Research
  • Renal cell carcinoma treatment
  • Tissue Engineering and Regenerative Medicine
  • Climate Change and Geoengineering
  • CRISPR and Genetic Engineering
  • Epigenetics and DNA Methylation
  • Biomedical Ethics and Regulation
  • Reproductive Biology and Fertility
  • Pancreatic function and diabetes
  • Cardiac tumors and thrombi
  • Hippo pathway signaling and YAP/TAZ
  • Global Health Care Issues
  • Healthcare cost, quality, practices
  • Erythrocyte Function and Pathophysiology
  • Inflammasome and immune disorders
  • Aortic Thrombus and Embolism

University of Florence
2018-2025

McGill University Health Centre
2024

RELX Group (United States)
2019-2023

Conference Board
2023

Meyer Children's Hospital
2018-2022

Ludwig-Maximilians-Universität München
2022

University of Turin
2010-2018

Cornell University
2016-2017

University College Dublin
2016

Biotechnology Research Center
2013

Acute kidney injury (AKI) is considered largely reversible based on the capacity of surviving tubular cells to dedifferentiate and replace lost via cell division. Here we show by tracking individual in conditional Pax8/Confetti mice that function recovered after AKI despite substantial loss. Cell cycle ploidy analysis upon Pax8/FUCCI2aR human biopsies identify endocycle-mediated hypertrophy cells. By contrast, a small subset Pax2+ progenitors enriches higher stress resistance clonal...

10.1038/s41467-018-03753-4 article EN cc-by Nature Communications 2018-04-04

Acute tissue injury causes DNA damage and repair processes involving increased cell mitosis polyploidization, leading to function alterations that may potentially drive cancer development. Here, we show acute kidney (AKI) the risk for papillary renal carcinoma (pRCC) development tumor relapse in humans as confirmed by data collected from several single-center multicentric studies. Lineage tracing of tubular epithelial cells (TECs) after AKI induction long-term follow-up mice showed...

10.1126/scitranslmed.aaw6003 article EN Science Translational Medicine 2020-03-25

Abstract Acute kidney injury (AKI) is frequent, often fatal and, for lack of specific therapies, can leave survivors with chronic disease (CKD). We characterize the distribution tubular cells (TC) undergoing polyploidy along AKI by DNA content analysis and single cell RNA-sequencing. Furthermore, we study functional roles polyploidization using transgenic models drug interventions. identify YAP1-driven TC outside site as a rapid way to sustain residual function early during AKI. This...

10.1038/s41467-022-33110-5 article EN cc-by Nature Communications 2022-10-04

Significance Statement To optimize the diagnosis of genetic kidney disorders in a cost-effective manner, we developed workflow based on referral criteria for in-person evaluation at tertiary center, whole-exome sequencing, reverse phenotyping, and multidisciplinary board analysis. This reached diagnostic rate 67%, with 48% confirming 19% modifying suspected clinical diagnosis. We obtained 64% children 70% adults. A modeled cost analysis demonstrated that early testing saves 20% costs per...

10.1681/asn.0000000000000076 article EN Journal of the American Society of Nephrology 2023-01-17

Raglianti, Valentina; Angelotti, Maria Lucia; De Chiara, Letizia; Allinovi, Marco; Cirillo, Luigi; Montero, Anna Manonelles; Cruzado, Josep Maria; Melica, Elena; Antonelli, Giulia; Conte, Carolina; Peired, Julie; Lasagni, Laura; Lange-Sperandio, Bärbel; Anders, Hans-Joachim; Becherucci, Francesca; Lazzeri, Mazzinghi, Benedetta; Romagnani, Paola Author Information

10.1681/asn.0000000642 article EN Journal of the American Society of Nephrology 2025-01-30

Crescentic glomerulonephritis is characterized by vascular necrosis and parietal epithelial cell hyperplasia in the space surrounding glomerulus, resulting formation of crescents. Little known about molecular mechanisms driving this process. Inducing crescentic two Pax2Cre reporter mouse models revealed that crescents derive from clonal expansion single immature cells. Preemptive delayed histone deacetylase inhibition with panobinostat, a drug used to treat hematopoietic stem disorders,...

10.1126/scitranslmed.abg3277 article EN Science Translational Medicine 2022-08-10

Tubular epithelial cells (TC) compose the majority of kidney parenchyma and play fundamental roles in maintaining homeostasis. Like other tissues, mostly immature TC with progenitor capabilities are able to replace lost during injury via clonal expansion differentiation. In contrast, differentiated lack this capacity. However, as is frequently exposed toxic injuries, evolution positively selected a response program that endows maintain residual function injury. Recently, we others have...

10.1016/j.kint.2023.10.036 article EN cc-by Kidney International 2024-01-09

Key Points A multinational survey of health care professionals on the kidney impacts climate change and environmental burden was conducted. Most participants reported knowledge gaps high level concern these interconnected issues. Only a minority report personal or organizational initiatives in environmentally sustainable care; this did not vary by country income level. Background Given threat to significant effect care, calls are increasing for organizations champion advocacy care. Yet,...

10.1681/asn.0000000000000402 article EN Journal of the American Society of Nephrology 2024-05-20

Cholesterol crystal embolism (CCE) implies immunothrombosis, tissue necrosis, and organ failure but no specific treatments are available. As CCE involves complement activation, we speculated that inhibitors of the C5a/C5aR axis would be sufficient to attenuate consequences like with systemic vasculitis. microcrystal injection into kidney artery wildtype mice initiated intra-kidney immunothrombosis within a few hours followed by sudden drop glomerular filtration rate ischemic necrosis after...

10.1016/j.kint.2024.07.020 article EN cc-by Kidney International 2024-08-12

Spermatogonial stem cells reside in specific niches within seminiferous tubules and continuously generate differentiating daughter for production of spermatozoa. Although spermatogonial are unipotent, these able to spontaneously convert germline cell-derived pluripotent (GPSCs) vitro. GPSCs have many properties embryonic highly plastic, but their therapeutic potential tissue regeneration has not been fully explored. Using a novel renal epithelial differentiation protocol, we obtained...

10.1681/asn.2013040367 article EN Journal of the American Society of Nephrology 2013-10-18

The NLRP3 inflammasome integrates several danger signals into the activation of innate immunity and inflammation by secreting IL-1β IL-18. Most published data relate to in immune cells, but some reports claim similar roles parenchymal, namely epithelial, cells. For example, podocytes, epithelial cells critical for maintenance kidney filtration, have been reported express release IL-β diabetic disease, contributing filtration barrier dysfunction injury. We questioned this hence performed...

10.3389/fimmu.2023.1230050 article EN cc-by Frontiers in Immunology 2023-08-23
Maria Pippias Gaetano Alfano Dearbhla Kelly María José Soler Letizia De Chiara and 87 more Timothy O. Olanrewaju Silvia Arruebo Aminu K. Bello Fergus Caskey Sandrine Damster Jo‐Ann Donner Vivekanand Jha David W. Johnson Adeera Levin Charu Malik Masaomi Nangaku Ikechi G. Okpechi Marcello Tonelli Feng Ye Rosanna Coppo Liz Lightstone Atefeh Amouzegar Hans‐Joachim Anders Jyoti Baharani Debasish Banerjee Boris Bikbov Edwina A. Brown Yeoungjee Cho Kathleen Claes Naomi Clyne Mogamat Razeen Davids Sara N. Davison Hassane M. Diongole Smita Divyaveer Gavin Dreyer Jan Dudley Udeme E. Ekrikpo Isabelle Éthier Rhys Evans Stanley Fan Winston Wing‐Shing Fung Maurizio Gallieni Anukul Ghimire Ghenette Houston Htay Htay Kwaifa Salihu Ibrahim Georgina Irish Kailash Jindal Arif Khwaja Rowena Lalji Vassilios Liakopoulos Valérie A. Luyckx Manuel Macı́a Hans‐Peter Marti Piergiorgio Messa Thomas Müller Aisha M. Nalado Brendon L. Neuen Dorothea Nitsch Fernando Nolasco Rainer Oberbauer Mohamed A. Osman Αikaterini Papagianni Анна Петрова Giorgina Barbara Piccoli Liam Plant Giuseppe Remuzzi Parnian Riaz Joris J. T. H. Roelofs Michael A. Rudnicki Syed Saad Aminu Muhammad Sakajiki Johannes B. Scheppach Emily See Rukshana Shroff Marit D. Solbu Stephen M. Sozio Giovanni FM Strippoli Maarten W. Taal James Tataw Ashu Sophanny Tiv Somkanya Tungsanga Jeroen B. van der Net Raymond Vanholder Andrea K. Viecelli Katie Vinen Bruno Vogt Marina Wainstein Talia Weinstein David C. Wheeler Emily K. Yeung Deenaz Zaidi

10.1016/j.kisu.2024.01.008 article EN Kidney International Supplements 2024-04-01

Podocytes and podocyte progenitors are interdependent components of the kidney's glomerular structure, with podocytes forming filtration barrier being key players in regeneration during pathophysiological processes. Both cell types subjected to constant mechanical forces, whose alterations can initiate podocytopathy worsen injury. Despite this, specific mechanosensors mechanotransduction pathways involved their response cues remain only partially explored. We used transcriptomics,...

10.1681/asn.0000000697 article EN Journal of the American Society of Nephrology 2025-04-02

Polyploidization of tubular cells (TC) is triggered by acute kidney injury (AKI) to allow survival in the early phase after AKI, but long run promotes fibrosis and AKI-chronic disease (CKD) transition. The molecular mechanism governing link between polyploid TC remains be clarified. In this study, we demonstrate that immediately expression cell cycle markers mostly identifies a population DNA-damaged TC. Using transgenic mouse models single-cell RNA sequencing show that, unlike diploid TC,...

10.1152/ajpcell.00081.2023 article EN cc-by AJP Cell Physiology 2023-08-29

Mesenchymal stem cells hold great promise for regenerative medicine as they can be easily isolated from different sources such adipose tissue, bone marrow, and umbilical cord blood. Spontaneously arising pluripotent obtained in culture murine spermatogonial (SSCs), while the pluripotency of human counterpart remains a matter debate. Recent gene expression profiling studies have demonstrated that embryonic cell- (ESC-) like testis are indeed closer to mesenchymal (MSCs) than cells. Here, we...

10.1155/2018/4910304 article EN cc-by Stem Cells International 2018-09-03

Acute organ injury, such as acute kidney injury (AKI) and disease (AKD), are major causes of morbidity mortality worldwide. Hyperuricemia (HU) is common in patients with impaired function but the impact asymptomatic HU on different phases AKI/AKD incompletely understood. We hypothesized that would attenuate AKD because soluble, contrast to crystalline, uric acid (sUA) can sterile inflammation. In vitro, 10 mg/dL sUA decreased reactive oxygen species interleukin-6 production macrophages,...

10.3390/cells11040626 article EN cc-by Cells 2022-02-11
Coming Soon ...