Sharad Kumar
@molregulation.bsky.social
š¤ 64
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Biomedical scientist passionate about discovery research
reposted by
Sharad Kumar
David Ho
20 days ago
Of all the stupid things that this regime has done, this is right up near the top. Postdoctoral researchers come to the US on H-1B visas. This will further destroy the US science enterprise. Stupid stupid stupid.
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Trump administration to add $100,000 fee for H-1B visas
The Trump administration is targeting a visa widely used by tech companies and other employers to hire foreign workers.
https://www.cbsnews.com/news/trump-h1b-visa-bill-100000-fee/
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Locals in Adelaide are now in full bloom š
about 1 month ago
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Very cool study: LYVAC/PDZD8 is a lysosomal vacuolator | Science
www.science.org/doi/10.1126/...
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LYVAC/PDZD8 is a lysosomal vacuolator
Lysosomal vacuolation is commonly found in many pathophysiological conditions, but its molecular mechanisms and functions remain largely unknown. Here, we show that the endoplasmic reticulum (ER)āanch...
https://www.science.org/doi/10.1126/science.adz0972
about 2 months ago
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www.nature.com/articles/s41...
New publication from our lab.
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Phospholipid scramblase 1 (PLSCR1) is a novel substrate of NEDD4-2 (NEDD4L) mediated ubiquitination - Cell Death Discovery
Cell Death Discovery - Phospholipid scramblase 1 (PLSCR1) is a novel substrate of NEDD4-2 (NEDD4L) mediated ubiquitination
https://www.nature.com/articles/s41420-025-02700-9
about 2 months ago
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Shades of Spring in Adelaide: frost and Sakura š
about 2 months ago
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Sharad Kumar
Australasian Cell Death Society (ACDS)
2 months ago
𧬠New paper alert!
@molregulation.bsky.social
ās team reveals a paradox: Nedd4-2 deficiency triggers kidney injury but protects against high blood glucose in diabetes. Fascinating twist! š
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Nedd4-2 ablation in kidney improves glycaemic control in diabetic mice - Cell Death & Disease
Cell Death & Disease - Nedd4-2 ablation in kidney improves glycaemic control in diabetic mice
https://www.nature.com/articles/s41419-025-07826-3
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reposted by
Sharad Kumar
Eric Topol
3 months ago
New organ clock data support the anti-aging benefits of estrogen for postmenopausal women. Reviewed here in context with previous and other recent reports.
erictopol.substack.com/p/new-anti-a...
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Sharad Kumar
Nature
5 months ago
An analysis shows that large fractions of future generations will be exposed to extreme climate events that would occur only once every 10,000 years in the absence of global warming
https://go.nature.com/43lhNbO
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Climate risk for younger generations is set to soar
An analysis shows that large fractions of future generations will be exposed to extreme climate events that would occur only once every 10,000 years in the absence of global warming.
https://go.nature.com/4m5h8mh
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Sharad Kumar
Nature
6 months ago
Tiger numbers in India are starting to rebound after decades of being perilously low. This recovery offers lessons for conserving other rare animals
https://go.nature.com/3EpQfIA
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Tiger turnaround as populations grow in India
Nature - Tiger numbers in India are starting to rebound after decades of being perilously low. This recovery offers lessons for conserving other rare animals.
https://go.nature.com/3EpQfIA
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reposted by
Sharad Kumar
Waggoner Lab
6 months ago
Spatial multi-omics reveals cell-type-specific nuclear compartments
@nature.com
www.nature.com/articles/s41...
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reposted by
Sharad Kumar
Nature
6 months ago
Nature research paper: Timing and trajectory of BCR::ABL1-driven chronic myeloid leukaemia
https://go.nature.com/4j2WTDZ
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Timing and trajectory of BCR::ABL1-driven chronic myeloid leukaemia - Nature
Explosive growth is attributed to the BCR::ABL1 gene 3ā14āyears before diagnosis of chronic myeloid leukaemia, highlighting the oncogenic potency of gene fusion and the slow and sequential trajectories of most other cancers.
https://go.nature.com/4j2WTDZ
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Sharad Kumar
Nature
6 months ago
Studies of researchers globally suggest there is a mental-health crisis in academia
https://go.nature.com/3RNAbmZ
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A mental-health crisis plagues PhDs ā these evidence-led initiatives offer help
Communities of researchers worldwide are taking on the toxic research cultures that drive poor psychological health among academics.
https://go.nature.com/3RNAbmZ
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reposted by
Sharad Kumar
Nature
6 months ago
āIāve never thought that this would be accomplished in my lifetimeā Researchers have successfully sequenced the complete genomes of six ape species
https://go.nature.com/4j9jE9k
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What makes us human? Milestone ape genomes promise clues
DNA sequences for the chimpanzee, orangutans and more will help scientists to determine what sets humans apart from other apes.
https://go.nature.com/4j9jE9k
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reposted by
Sharad Kumar
Nature
6 months ago
Researchers have created the largest and most detailed wiring diagram of a mammalian brain to date, by mapping cells in a cubic millimetre of a mouseās brain tissue
https://go.nature.com/4cu68dN
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Biggest brain map ever details huge number of neurons and their activity
3D reconstruction is the first to overlay neuronal activity on a large-scale map of brain cells.
https://go.nature.com/4cu68dN
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reposted by
Sharad Kumar
Waggoner Lab
6 months ago
Cancer vulnerabilities exposed by finding interactions among DNA repair factors
@nature.com
@jcornlab.bsky.social
www.nature.com/articles/s41...
www.nature.com/articles/d41...
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reposted by
Sharad Kumar
Eric Topol
7 months ago
Of >105,000 participants with 30-year follow-up, only 9.3% achieved healthy aging (age 70, w/o any chronic diseases). Their diet was significantly associated with this outcome.
@naturemedicine.bsky.social
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Overseas universities see opportunity in U.S. ābrain drainā | Science | AAAS
www.science.org/content/arti...
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Overseas universities see opportunity in U.S. ābrain drainā
But many U.S.-based scientists seeking to leave may struggle to find positions in countries grappling with funding issues of their own
https://www.science.org/content/article/overseas-universities-see-opportunity-u-s-brain-drain
7 months ago
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reposted by
Sharad Kumar
Nature
7 months ago
Some scientists in the United States have told Nature that they are considering leaving the country in the wake of widespread disruption to research brought in by the Trump administration Are you thinking about leaving?
https://go.nature.com/4bMGd0J
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These frustrated scientists want to leave the United States ā do you? Take Natureās poll
Nature - In the wake of the Trump administrationās funding freezes and job cuts, some researchers are planning their next move.
https://go.nature.com/4bMGd0J
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reposted by
Sharad Kumar
Eric Topol
7 months ago
The potential of senolytics for treating low back pain, removing senescent cells that are implicated, as seen ex vivo and in the mouse model.
www.science.org/doi/10.1126/...
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Senolytic treatment for low back pain
Senolytics drugs can reduce back pain by removing senescent cells from the intervertebral discs and spinal cord.
https://www.science.org/doi/10.1126/sciadv.adr1719
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reposted by
Sharad Kumar
Sherry Pagoto, PhD
7 months ago
New report shows that NIH grants fueled $95 billion in economic activity and 407,782 jobs in 2024. That's not to mention the countless lives that biomedical research has saved. Show me a better investment than that.
www.forbes.com/sites/michae...
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NIH Grants Fueled $95 Billion In FY 2024 Economic Activity, Finds New Report
National Institutes of Health grants generated almost $95 billion in economic activity nationwide in FY 2024 according to a new report by United for Medical Research.
https://www.forbes.com/sites/michaeltnietzel/2025/03/12/nih-grants-fueled-95-billion-in-economic-activity-finds-new-report/
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reposted by
Sharad Kumar
Eric Topol
7 months ago
How does SARS-CoV-2 lead to the multisystem inflammatory syndrome in children, a rare, potentially fatal condition?
www.nature.com/articles/s41...
High levels of TGFβ interfere with the child's response to control Epstein Barr virus, leading to its reactivation and severe inflammation
@nature.com
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TGFβ links EBV to multisystem inflammatory syndrome in children - Nature
Multisystem inflammatory syndrome following SARS-CoV-2 infection results from increased serum levels of TGFβ, which impairs the reactivation of virus-specific T cells.
https://www.nature.com/articles/s41586-025-08697-6
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reposted by
Sharad Kumar
Sharon
7 months ago
next Canadian government should think of boosting research funding up here and trying to grab as many American postdocs and researchers as possible
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Sharad Kumar
Nature
7 months ago
Nature research paper: MYC ecDNA promotes intratumour heterogeneity and plasticity in PDAC
https://go.nature.com/41IPJwX
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MYC ecDNA promotes intratumour heterogeneity and plasticity in PDAC - Nature
In a model of pancreatic ductal adenocarcinoma, extrachromosomal DNAs are shown to be a source of high-level focal amplification driving MYC heterogeneityĀ and phenotypic adaptation.
https://go.nature.com/41IPJwX
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reposted by
Sharad Kumar
Jenny Sinclair
7 months ago
Australia: Shergold says ARC funding scheme redesign should set the course for decades ahead (free to read):
www.researchprofessionalnews.com/rr-news-aust...
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ARC redesign āwill set funding direction for next two decadesā - Research Professional News
Chair explains why Australian Research Council is rejecting defined splits between basic and applied funding
https://www.researchprofessionalnews.com/rr-news-australia-government-agencies-2025-3-arc-redesign-will-set-funding-direction-for-next-two-decades/
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āNIH-funded research contributed to 354 of 356 drugs approved by the US Food and Drug Administration in 2010ā19.ā
add a skeleton here at some point
7 months ago
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Sharad Kumar
Nature
7 months ago
Abrupt cuts by the Trump administration to the US National Institutes of Health threaten progress in medical research globally
https://go.nature.com/3FbZP1N
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How the NIH dominates the worldās health research ā in charts
Abrupt cuts by the Trump administration to the US National Institutes of Health threaten progress in medical research globally.
https://go.nature.com/3FbZP1N
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reposted by
Sharad Kumar
Australasian Cell Death Society (ACDS)
7 months ago
(1/5) Hello, Bluesky community! We're thrilled to be here. š We are the ACDS, your hub for connecting cell death researchers across Australasia and beyond. We're here to foster a community that embodies scientific integrity, collaboration and communicates science across the globe!
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reposted by
Sharad Kumar
Eric Topol
7 months ago
GLP-1 drugs association with reduced risk of blood cancers (leukemias and lymphomas)
jamanetwork.com/journals/jam...
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reposted by
Sharad Kumar
Eric Topol
7 months ago
PIEZO2 ion channels come to the fore yet again, now as a key sensor for adipose tissue
www.cell.com/cell-metabol...
@ardemp.bskyverified.social
@scripps.edu
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A key role of PIEZO2 mechanosensitive ion channel in adipose sensory innervation
Wang etĀ al. identified that the mechanoreceptor PIEZO2 is abundantly expressed in fat-innervating sensory neurons and plays a crucial role in mediating the adipose afferent pathway.
https://www.cell.com/cell-metabolism/fulltext/S1550-4131(25)00062-2
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reposted by
Sharad Kumar
Waggoner Lab
7 months ago
Review
@natrevimmunol.bsky.social
New insights into the noncanonical inflammasome point to caspase-4 as a druggable target
www.nature.com/articles/s41...
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reposted by
Sharad Kumar
Waggoner Lab
7 months ago
Microbiota-derived H2S induces c-kit+ cDC1 autophagic cell death and liver inflammation in MASH
www.nature.com/articles/s41...
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Microbiota-derived H2S induces c-kit+ cDC1 autophagic cell death and liver inflammation in metabolic dysfunction-associated steatohepatitis - Nature Communications
The immune regulatory mechanism for metabolic dysfunction-associated steatohepatitis (MASH) remains elusive. Here, the authors identify a c-kit+ cDC1 subset, which can be depleted by Desulfovibrio_sp....
https://www.nature.com/articles/s41467-025-57574-3
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Interesting work! Norovirus co-opts NINJ1 for selective protein secretion | Science Advances
www.science.org/doi/10.1126/...
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Norovirus co-opts NINJ1 for selective protein secretion
NINJ1-mediated plasma membrane rupture enables the selective release of an intracellular viral protein.
https://www.science.org/doi/10.1126/sciadv.adu7985
7 months ago
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reposted by
Sharad Kumar
Nature
7 months ago
Nature research paper: Macrophages recycle phagocytosed bacteria to fuel immunometabolic responses
https://go.nature.com/3XmyOPD
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Macrophages recycle phagocytosed bacteria to fuel immunometabolic responses - Nature
Phagocytosed bacteria can serve as an alternative nutrient source for macrophages, influencing their metabolic and immune responses through the recycling of microbial components, with the process regulated by nutrient-sensing mechanisms and bacterial viability.
https://go.nature.com/3XmyOPD
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reposted by
Sharad Kumar
ARC Tracker
8 months ago
Yeah. They should release a 20 page proposal tomorrow that has "WE NEED MORE MONEY" printed on every single page and nothing else.
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Sharad Kumar
Nature
8 months ago
Nature research paper: Human-correlated genetic models identify precision therapy for liver cancer
https://go.nature.com/41qNkbs
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Human-correlated genetic models identify precision therapy for liver cancer - Nature
As proof of principle, an analysis using a suite of human-alignedĀ immunocompetent mouse models of hepatocellular carcinoma identifies a promising therapeutic candidate, cladribine, which acts in a highly effective subtype-specific manner in combination with standard-of-care therapy.
https://go.nature.com/41qNkbs
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Really cool study showing that EVs shed from pyroptotic cells contain gasdermin pores that, when fused to other cells, cause bystander cell death. Transplantation of gasdermin pores by extracellular vesicles propagate...
sciencedirect.com/science/articlā¦
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https://sciencedirect.com/science/articlā¦
8 months ago
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Sharad Kumar
Nature
8 months ago
BREAKING: Scientists are bracing for major changes in the direction of US biomedical research as Robert F. Kennedy Jr, who has promoted vaccine misinformation and public-health conspiracies, gains control over a vast swathe of science policy.
https://go.nature.com/4hYQEQj
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Vaccine sceptic RFK Jr is now a powerful force in US science: what will he do?
Kennedy has expressed support for some fields, but has also declared heād like a ābreakā in infectious-disease research.
https://go.nature.com/4hYQEQj
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Sharad Kumar
Nature
8 months ago
Nature research paper: Converging mechanism of UM171 and KBTBD4 neomorphic cancer mutations
https://go.nature.com/3WZ9ije
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Converging mechanism of UM171 and KBTBD4 neomorphic cancer mutations - Nature
We show that gain-of-function cancer mutations in the KBTBD4 E3 ligase promote neodegradation of substrates via a shape-complementarity-based mechanism, which converges with the mechanism of action of the UM171 molecular glue degrader and can be blocked by HDAC1/2 inhibitors.
https://go.nature.com/3WZ9ije
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Sharad Kumar
Eric Topol
8 months ago
Texas measles outbreak doubled, now into 4 counties
www.houstonchronicle.com/health/artic...
add a skeleton here at some point
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Sharad Kumar
Science Magazine
8 months ago
Major U.S. health agencies, including the NIH and the CDC, are firing thousands of probationary employees this afternoon. Follow Scienceās coverage of President Donald Trumpās impact on U.S. research and science globally. ā¬ļø
scim.ag/40XtSSi
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Welcome to Trump Tracker: Probationary workers at health agencies being fired today
Follow President Donald Trumpās impact on U.S. research and science globally
https://scim.ag/40XtSSi
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I Used to Run the N.I.H. Hereās What Worries Me.
www.nytimes.com/2025/02/14/o...
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Opinion | American Science is Under Attack
The Trump administration hobbles research and endangers the public health.
https://www.nytimes.com/2025/02/14/opinion/trump-public-health-funding-nih.html?smid=bs-share
8 months ago
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Sharad Kumar
Elisabeth Bik - Perpetrator 5, a fraudulent microbiologist
8 months ago
I Used to Run the N.I.H. Hereās What Worries Me. āmembers of the executive and legislative branches have long seen themselves as caretakers of a precious commodity ā the nationās scientific and technological communities. Today is very different.ā
www.nytimes.com/2025/02/14/o...
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Opinion | American Science is Under Attack (Gift Article)
The Trump administration hobbles research and endangers the public health.
https://www.nytimes.com/2025/02/14/opinion/trump-public-health-funding-nih.html?unlocked_article_code=1.xE4.Wtyy.6cRJD4FPyZip
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Sharad Kumar
Eric Topol
8 months ago
A shining example....there are 1,000s of these fundamental science discoveries that NIH supports to promote human health
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Sharad Kumar
Protein codes promote selective subcellular compartmentalization | Science
www.science.org/doi/10.1126/...
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Protein codes promote selective subcellular compartmentalization
Cells have evolved mechanisms to distribute ~10 billion protein molecules to subcellular compartments where diverse proteins involved in shared functions must assemble. Here, we demonstrate that prote...
https://www.science.org/doi/10.1126/science.adq2634
8 months ago
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Protein codes promote selective subcellular compartmentalization | Science
www.science.org/doi/10.1126/...
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Protein codes promote selective subcellular compartmentalization
Cells have evolved mechanisms to distribute ~10 billion protein molecules to subcellular compartments where diverse proteins involved in shared functions must assemble. Here, we demonstrate that prote...
https://www.science.org/doi/10.1126/science.adq2634
8 months ago
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reposted by
Sharad Kumar
Eric Topol
9 months ago
New data coming out of CDC (despite ban on communication) on respiratory virus status; confirms past-peak for Covid, RSV
www.cdc.gov/respiratory-...
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Sharad Kumar
ARC Tracker
9 months ago
I've stopped posting on Twitter and Threads. I'll stop interacting there and lock those accounts at the end of the week. If you have colleagues who used to follow me on those platforms, feel free to let them know, and that they can follow me here or Mastodon instead. š
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Sharad Kumar
Eric Topol
9 months ago
A new mechanism for cancer-induced immune evasion. We knew about cancer cells hijacking mitochondria. Now we learn about how their mitochondrial transfer to T cells impairs the tumor immune response.
www.nature.com/articles/s41...
www.nature.com/articles/d41...
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reposted by
Sharad Kumar
Eric Topol
9 months ago
Important Covid editorial
@science.org
by Maria Van Kerkhove
www.science.org/doi/10.1126/...
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