Journal of Clinical Investigation
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Journal of Clinical Investigation
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The JCI is a premiere venue for discoveries in basic and clinical biomedical science that will advance the practice of medicine. Est. 1924
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Without HRD1, insulin biosynthesis becomes no easy task

This issue’s cover: @anooparunagiri.bsky.social report that deletion of the ER membrane–associated ubiquitin ligase HRD1 in beta cells impairs proinsulin synthesis & triggers diabetes in mice: doi.org/10.1172/JCI1...
From earlier this week: Highlighting the importance for more research across diverse populations…

This Research Letter by Daniel J. McGrail & team shows a widely used marker of systemic inflammation varies by race/ethnicity and sex: doi.org/10.1172/JCI1...
January 18, 2026 at 2:01 PM
ICYMI: Human adenosine deaminase type 2 deficiency a rare autoinflammatory condition.

In this Research Letter, @isabellemeyts.bsky.social & team report on NK cells from 11 patients with the condition, revealing an altered phenotype and functional impairment: www.jci.org/articles/vie...
January 17, 2026 at 2:00 PM
GLP-1RA precision medicine in people with type 2 diabetes: current insights and future prospects

In this Review, Pedro Cardoso, John M. Dennis & Ewan R Pearson discuss approaches for maximizing benefits of GLP-1RAs: doi.org/10.1172/JCI1...
January 16, 2026 at 9:01 PM
Reposted by Journal of Clinical Investigation
Our latest research is on the cover of the JCI @jci.org! 🔬

We explored how HRD1-dependent ERAD protects beta cells. We found that limiting this pathway causes misfolded proinsulin to accumulate, suppressing insulin synthesis and driving diabetes development.

Big thanks to Arvan Lab @umich.edu ☺️
Without HRD1, insulin biosynthesis becomes no easy task

This issue’s cover: @anooparunagiri.bsky.social report that deletion of the ER membrane–associated ubiquitin ligase HRD1 in beta cells impairs proinsulin synthesis & triggers diabetes in mice: doi.org/10.1172/JCI1...
January 16, 2026 at 7:35 PM
Without HRD1, insulin biosynthesis becomes no easy task

This issue’s cover: @anooparunagiri.bsky.social report that deletion of the ER membrane–associated ubiquitin ligase HRD1 in beta cells impairs proinsulin synthesis & triggers diabetes in mice: doi.org/10.1172/JCI1...
January 16, 2026 at 5:05 PM
Fanning the flames: IFN-γ fuels CAR-T inflammation and cytopenia: doi.org/10.1172/JCI2...

A Commentary by Stefanie R. Bailey & Marcela V. Maus on Payal Goala et al.: doi.org/10.1172/JCI1...
January 16, 2026 at 2:02 PM
Highlighting the importance for more research across diverse populations…

This Research Letter by Daniel J. McGrail & team shows a widely used marker of systemic inflammation varies by race/ethnicity and sex: doi.org/10.1172/JCI1...
January 15, 2026 at 5:15 PM
Reposted by Journal of Clinical Investigation
This Research Letter describes a new molecular basis for lipodystrophy syndromes

ASCI member Abhimanyu Garg & team report a recurrent ACAA2 variant causes a dominant syndrome of lipodystrophy, lipomatosis, infantile steatohepatitis and hypoglycemia: doi.org/10.1172/JCI1...
January 15, 2026 at 2:30 PM
Brain activity during sleep may indicate amyotrophic lateral sclerosis 10-15 years before motor symptoms

Luc Dupuis & team report on early brain-wide disruption of sleep microarchitecture in ALS and a treatment in mice that improves the sleep phenotype: doi.org/10.1172/JCI1...
January 14, 2026 at 5:15 PM
This study challenges the concept that colon cancer is a strictly nontransmissible disease

Fabio Cominelli & team report on a missense mutation in Muc2 that promotes gut microbiome and metabolome-dependent colitis-associated tumorigenesis in mice: doi.org/10.1172/JCI1...
January 14, 2026 at 2:02 PM
Human adenosine deaminase type 2 deficiency a rare autoinflammatory condition.

In this Research Letter, @isabellemeyts.bsky.social & team report on NK cells from 11 patients with the condition, revealing an altered phenotype and functional impairment: www.jci.org/articles/vie...
January 13, 2026 at 5:15 PM
CAR-T therapy has improved patient survival, but some patients develop high-grade toxicities

Marco L. Davila & team recapitulate these toxicities in mice, revealing Th1-Th17 imbalance drives the co-occurrence of CRS and neutropenia—and is prevented by IFNg block: doi.org/10.1172/JCI1...
January 13, 2026 at 2:03 PM
Is LNK loss the missing link for treating Fanconi anemia?

Wei Tong & team show deleting the adaptor protein LNK boosts the ability of blood stem cells to regenerate with less DNA damage in mice, offering the potential for treatments in Fanconi Anemia: doi.org/10.1172/JCI1...
January 12, 2026 at 5:15 PM
This study has broad implications across multiple neurological conditions

Jian Hu & team use mouse models to show peroxisomes license myelin debris degradation in myeloid cells, which enables debris clearance and remyelination after myelin damage: www.jci.org/articles/vie...
January 12, 2026 at 2:03 PM
ICYMI: The role of suPAR and related proteins in kidney, heart diseases, and diabetes

In this Review, Jochen Reiser & team highlight the soluble form of the urokinase plasminogen activator and its related proteins beyond their prognostic value as markers of inflammation: doi.org/10.1172/JCI197141
January 11, 2026 at 2:01 PM
Shared earlier this week: Isn’t it ironic? Functional iron deficiency at the core of Parkinson's disease pathobiology

This Viewpoint by Ian Peikon & Nancy C. Andrews calls for a rethink of iron’s position in PD pathology and treatment: doi.org/10.1172/JCI2...
January 10, 2026 at 2:00 PM
Merlin’s Disappearing Act: NF2 loss conjures pancreatic cancer survival in the hostile tumor microenvironment: doi.org/10.1172/JCI2...

Sofia Ferreira & Laura D. Attardi comment on Yi Xu et al.: doi.org/10.1172/JCI1...
January 9, 2026 at 5:15 PM
Preventing graft re-JAK-tion: safer transplant conditioning enables murine islet allograft tolerance and diabetes reversal: doi.org/10.1172/JCI2...

Stephen P. Persaud @persaudsquad.bsky.social & John F. DiPersio provides a Commentary on Preksha Bhagchandani et al.: doi.org/10.1172/JCI1...
January 9, 2026 at 2:02 PM
Introducing a gene mutation that induces pancreatic tumor evolution and therapeutic resistance with environmental stress.

Pei Wang & team show NF2 loss malignantly transforms human pancreatic acinar cells and enhances cell fitness under nutrient deprivation: doi.org/10.1172/JCI1...
January 8, 2026 at 5:15 PM
Clonal hematopoiesis of indeterminate potential (CHIP) is common in older individuals, but its connection with aortic valve stenosis was unclear.

Wesley T. Abplanalp & team now show CHIP activates procalcific pathways in macrophages and promotes AVS: www.jci.org/articles/vie...
January 8, 2026 at 2:01 PM
Reposted by Journal of Clinical Investigation
During caloric restriction, protein synthesis in the liver slows

ASCI member Marc K. Hellerstein & team now show nitric oxide is essential for this reduction, which occurs as a rapid transition event between weeks 4-5 in mice: doi.org/10.1172/JCI1...
January 7, 2026 at 6:38 PM
Reposted by Journal of Clinical Investigation
Lung transplant recipients predisposed to impaired complement regulation have worse CLAD-free survival

ASCI member Hrishikesh S. Kulkarni & team reveal this phenotype is associated with intragraft B-cell activation and donor-specific antibodies in mice: www.jci.org/articles/vie...
January 7, 2026 at 2:30 PM
Review: Cardiovascular complications of pregnancy

Yijun Yang et al. explore pregnancy-related cardiovascular adaptations and complications, along with the mechanisms, animal models, and racial and ethnic disparities tied to these conditions: doi.org/10.1172/JCI1...
January 6, 2026 at 5:15 PM
Can we help fat cells get in shape in diabetes?

Here, James C. Lo & team identify FAM20C as a key mediator of obesity-induced adipocyte dysfunction and inflammation, suggesting its inhibition as a potential therapy for type 2 diabetes: doi.org/10.1172/JCI1...
January 6, 2026 at 2:03 PM
Reposted by Journal of Clinical Investigation
The gut<->brain axis impact on health and disease is far more important than anticipated, as reflected by GLP-1 effects, modulating the immune system, direct neural circuits, the microbiome, and more. A stellar new, open-access review
www.jci.org/articles/vie...
January 5, 2026 at 4:12 PM