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Bob Varelas

@varelaslab.bsky.social
632 followers 188 following 7 posts

Scientist/Principal investigator @ Boston U studying signaling mechanisms in development, homeostasis and disease.

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Bob Varelas @varelaslab.bsky.social · 28/08/2026
New paper from our lab! We reveal heterogeneous pulmonary vascular responses to disrupted Hippo signaling and identify a distinct endothelial cell population lining lung veins that can drive fibrotic remodeling, with implications for pulmonary fibrosis. www.science.org/doi/10.1126/...
science.org
LATS1/2 inactivation drives a distinct venous endothelial cell response that contributes to fibrotic remodeling of the lung
Endothelial dysfunction is recognized to contribute to chronic tissue remodeling in the lung, yet endothelial-derived mechanisms driving these processes remain largely undefined. Here, we show that en...
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Bob Varelas @varelaslab.bsky.social · 05/08/2026
Happy to be part of this collaborative preprint with Giovanni Ligresti's lab! www.biorxiv.org/content/10.6... We identify ACKR1 as a central regulator of maladaptive venous endothelium in pulmonary fibrosis and show that targeting ACKR1 suppresses signals that shape the fibrotic niche.
biorxiv.org
ACKR1-expressing venous endothelial cells establish a pro-fibrotic niche in pulmonary fibrosis
Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease characterized by excessive extracellular matrix deposition and irreversible architectural distortion of the lung. Fibrotic remodeling ...
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Bob Varelas @varelaslab.bsky.social · 24/03/2026
It was a pleasure joining the Lung Science Podcast. Thank you to Dr. Gredic for the engaging conversation and the opportunity to share our recent work.
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Reposted by Bob Varelas
ATS Red Journal @ajrcmb.bsky.social · 18/03/2026
Airway Goblet Metaplasia Resulting from YAP/TAZ Deletion Drives Pulmonary Inflammatory Responses @atscommunity.bsky.social #medsky 🔗 tinyurl.com/yayvc65c
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Reposted by Bob Varelas
Fusion Conferences @fusionconf.bsky.social · 23/09/2025
📢 TALK DEADLINE for the upcoming #FusionLung26 meeting has been EXTENDED until 01 October 2025!! Register today or email alice@fusionconferences.com to submit, before 01 Oct 25 for your chance to present alongside our fantastic speaker line-up! 🫁👨‍🔬 🔗 bit.ly/45e1ZJ7
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Bob Varelas @varelaslab.bsky.social · 11/09/2025
Our latest study is out! We investigated the effects of inducing goblet airway epithelial cells in the lung arising from YAP/TAZ inhibition, finding distinct inflammatory networks with implications for disease. Congrats to team and first author Carina!
pubmed.ncbi.nlm.nih.gov
Airway Goblet Metaplasia Resulting from YAP/TAZ Deletion Drives Pulmonary Inflammatory Responses - PubMed
The increased presence of goblet epithelial cells in conducting airways of the respiratory system is common in pulmonary disorders and is often accompanied by disrupted immune and alveolar responses. ...
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Reposted by Bob Varelas
Anne Carpenter @drannecarpenter.bsky.social · 01/03/2025
Screen shot of the article
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Bob Varelas @varelaslab.bsky.social · 15/02/2025
Despite the chaos and uncertainty, I am happy to share our latest publication. In this study, we mapped stromal changes in mammary carcinomas initiated by epithelial LATS1/2 kinase inhibition and demonstrated the effectiveness of TEAD inhibitors in this model. www.embopress.org/doi/full/10....
embopress.org
LATS1/2 inactivation in the mammary epithelium drives the evolution of a tumor-associated niche | EMBO reports
imageimageLATS1/2-inactivation and consequent nuclear YAP/TAZ hyperactivation in the mammary epithelium drives the development of a pro-oncogenic stromal niche. Inhibitors of YAP/TAZ-TEAD activity blo...
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Reposted by Bob Varelas
EMBO Reports @emboreports.org · 15/02/2025
Bob Varelas and co-workers @varelaslab.bsky.social @bumedicine.bsky.social @bostonu.bsky.social show that LATS1/2 inactivation in the mammary #epithelium drives the #evolution of a #tumor-associated #niche. #hippo #cancer #TEAD www.embopress.org/doi/full/10....
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Bob Varelas @varelaslab.bsky.social · 05/07/2024
Great collaborative study with Giovanni Ligresti’s lab is out! We identify age-related lung endothelial cell states that associate with injury-induced fibrosis. www.nature.com/articles/s41...
nature.com
Lung injury-induced activated endothelial cell states persist in aging-associated progressive fibrosis - Nature Communications
The regenerative capacity of the lung in response to injury deteriorates with aging. Here, Raslan et al. discover that aging-associated progressive lung fibrosis is accompanied by persistent activatio...
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Bob Varelas @varelaslab.bsky.social · 19/04/2024
  Recipe for making pulmonary AT1 cells from human iPSCs just out from the Kotton lab. Great collaboration!   www.cell.com/cell-stem-ce...
cell.com
Generation of human alveolar epithelial type I cells from pluripotent stem cells
Kotton and colleagues generate human alveolar epithelial type I cells (AT1s) from induced pluripotent stem cells (iPSCs). The resulting cells can be grown as 3D organoids or in 2D air-liquid interface...
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