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Shiv Grewal

@grewalsh.bsky.social
753 followers 291 following 30 posts

Scientist; NASonline.org member; Alum Cambridge University; Studies Epigenetics; Dog lover; Views are my own en.m.wikipedia.org/wiki/Shiv_I.S._G…

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Reposted by Shiv Grewal
PomBase: The S. pombe knowledgebase @pombase.bsky.social · 20/08/2026
Treat biological databases as infrastructure, not projects www.nature.com/articles/d41... We're quietly defunding the infrastructure modern biology runs on. PomBase, FlyBase, HGNC. have faced, or facing, existential funding crises since 2024. Curation expertise, once lost, is difficult to rebuild.
nature.com
Treat biological databases as infrastructure, not projects
Letter to the Editor
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Shiv Grewal @grewalsh.bsky.social · 13/08/2026
Delighted to see @biopatrika.bsky.social spotlight Dr. Drisya Vijayakumari and her recently published work from our lab on how introns help silence retrotransposons and modulate gene expression. Congratulations, Drisya, on this well-deserved recognition! 👏🧬 www.nature.com/articles/s41...
nature.com
Spliceosomal proteins direct RNA methylation to modulate gene expression and silence retrotransposons - Nature Communications
RNA modifications help determine how RNAs are processed and regulated. Here, the authors identify a pathway in fission yeast in which Tgs1-mediated RNA capping recruits RNAi machinery to target crypti...
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Reposted by Shiv Grewal
Chhabi Govind, PhD @govindlab.bsky.social · 05/08/2026
A new preprint from our lab: www.biorxiv.org/content/10.6...
biorxiv.org
Genome-wide analysis reveals the importance of histone acetyltransferase Esa1 in transcriptional regulation during nitrogen starvation
Macroautophagy/autophagy is a process that degrades intracellular components and is strongly triggered by nitrogen starvation (-N). Some ATG (autophagy related) genes are activated at the transcriptio...
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Shiv Grewal @grewalsh.bsky.social · 23/07/2026
Looking forward to it! See you tomorrow. Thanks, @ASBMB!
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Shiv Grewal @grewalsh.bsky.social · 08/07/2026
Introns have a hidden regulatory role! 🧬🎉 Delighted to share our latest paper showing that inefficiently spliced introns and spliceosomal proteins direct RNA methylation, engaging RNAi to silence retrotransposons and regulate gene expression nature.com/articles/s41...
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Shiv Grewal @grewalsh.bsky.social · 14/03/2026
Thank you to @unclineberger.bsky.social and @brianstrahl.bsky.social for the invitation to give a keynote at the 9th Chromatin & Epigenetics Symposium and for organizing such a stimulating meeting. I’m grateful to the many colleagues who took the time to meet and chat—really enjoyed the discussions!
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Reposted by Shiv Grewal
Sarah Hainer @hainerlab.bsky.social · 27/02/2026
Incredibly proud to share our new preprint, lead by the Incomparable Rithika Sankar. Here we temporally dissect the role of FACT in mES cells, finding that FACT loss drives progressive deterioration of chromatin architecture, leading to transcriptional collapse. www.biorxiv.org/content/10.6...
biorxiv.org
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Reposted by Shiv Grewal
Waggoner Lab @labwaggoner.bsky.social · 07/01/2026
Heterochromatin self-propagation is actively regulated by H3K14-ub in response to external stimuli, with broad implications for rapid changes in the epigenetic landscape in physiology and disease @nature.com @grewalsh.bsky.social @ncicancer.bsky.social www.nature.com/articles/s41...
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Shiv Grewal @grewalsh.bsky.social · 07/01/2026
Stress controls epigenetic inheritance! A histone ubiquitylation-based regulatory hub links stress/environmental signaling to heterochromatin self-propagation and epigenetic inheritance-reshaping how we think about development, drug resistance, and cancer 👉 nature.com/articles/s41586-025-09899-8
Read in Nature: nature.com/articles/s41586-025-09899-8
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Reposted by Shiv Grewal
Samrat Mukhopadhyay @samratmukhopadhyay.bsky.social · 13/12/2025
It was wonderful to host Shiv Grewal @grewalsh.bsky.social from NIH earlier this week. Shiv gave a beautiful talk on heterochromatin propagation and the epigenetic landscape. We had a stimulating discussion after his lecture. It was also great to have him visit my single-molecule biophysics lab.
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Reposted by Shiv Grewal
Abby Buchwalter @abbybuch.bsky.social · 22/07/2025
Another paper bluetorial! Today: how does the spatial location of genes influence their function? (1/n) www.nature.com/articles/s41...
nature.com
The nuclear periphery confers repression on H3K9me2-marked genes and transposons to shape cell fate - Nature Cell Biology
Marin et al. report the role of lamin proteins and the lamin B receptor (LBR) in chromatin positioning at the nuclear periphery. Knockout of all lamins and LBR in mouse embryonic stem cells leads to h...
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Reposted by Shiv Grewal
Sahana Holla @sahanaholla.bsky.social · 01/07/2025
Grateful for the warm welcome @tifrhyderabad.bsky.social :) Thrilled to be part of this vibrant scientific community and eager to build an exciting research program!
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Shiv Grewal @grewalsh.bsky.social · 29/06/2025
So proud of you, @sahanaholla! Watching your journey has been such a joy. Wishing you all the best as you begin this exciting new chapter at TIFRH. They’re lucky to have you!
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Wendy Wenderski @wendywenderski.bsky.social · 18/06/2025
Remembering Dave’s goodness gives me hope every day.
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Shiv Grewal @grewalsh.bsky.social · 18/06/2025
It was an honor to speak at the Rockefeller University symposium celebrating David Allis—a true visionary who transformed the field of chromatin and gene expression. His legacy continues to inspire us all. Grateful to the organizers for such a meaningful and inspiring event.
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Joana Vidigal @vidigaljoana.bsky.social · 04/04/2025
What was that you said? You are looking for new #RNA research to read in the weekend? You are in luck! 📣 📣 Check out the new preprint from our lab!!!! 📣 📣 www.biorxiv.org/content/10.1...
biorxiv.org
AGO2 slicing of a domesticated retrotransposon is necessary for normal vasculature development
Argonaute (AGO) mediated slicing of RNA, also known as RNAi, is a highly conserved phenomenon that is evolutionarily linked to the repression of transposons and other repeats. Although RNAi is no long...
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Reposted by Shiv Grewal
Oded Rechavi @odedrechavi.bsky.social · 01/04/2025
Who does that? We rented a train JUST for the conference, that will take the participants from Prague to the woods of Bohemia. There'll be talks ON THE TRAIN. In Prague we'll have 5 locations with different atmospheres. #theconferencetoendallconferences Register now: woodstock.img.cas.cz
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RosenbergLabBCM @rosenberglabbcm.bsky.social · 21/02/2025
What RNA polymerase gets up to in the genome and how mutations happen! Just out in Nature! Many thanks to many collaborators & congrats 1st author Jingjing Liu! www.nature.com/articles/s41...
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Reposted by Shiv Grewal
The Lewis Lab @peterlewislab.bsky.social · 28/01/2025
Our collaboration with the Muir lab revealed that N-terminal histone modifications can 'detoxify' K27M inhibition by altering PRC2-substrate interactions. Acetylation showed the greatest impact, supported by xenograft data from the Monje group. pubs.acs.org/doi/epdf/10....
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Chen Davidovich @davidovichlab.bsky.social · 16/01/2025
We used cryoET and biophysical approaches in vitro together with molecular biology in differentiated cells to show that chromatin compacted by PRC1-CBX8 is porous and accessible while PRC1 is dynamic in it. 🧪🧬 #cryoET #Epigenetics #Polycomb www.nature.com/articles/s41...
nature.com
Dynamic PRC1–CBX8 stabilizes a porous structure of chromatin condensates - Nature Structural & Molecular Biology
Here the authors show that a gene-inactivating protein complex packs inactive genes into a dynamic and accessible structure. The study challenges the traditional views that restricted accessibility an...
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Shiv Grewal @grewalsh.bsky.social · 03/01/2025
🔬Decoding Silencing: How Heterochromatin Transcribes to Silence Itself! 🧬 Discover how a pioneer transcription factor-like complex infiltrates repressive heterochromatin, producing transcripts with hidden introns that kickstart RNAi-mediated heterochromatin formation www.nature.com/articles/s41...
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Shiv Grewal @grewalsh.bsky.social · 01/01/2025
Happy New Year 2025! 🎉 As we step into another year of exploration and discovery, may curiosity guide us, innovation inspire us, and collaboration propel us forward. Here’s to breakthroughs, learning, and making the world a better place through science! 🌟 #HappyNewYear
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Reposted by Shiv Grewal
The New York Times @nytimes.com · 26/12/2024
Breaking News: Manmohan Singh, a former prime minister of India who helped transform the country’s economy, died at 92.
nytimes.com
Manmohan Singh, Indian Premier Who Spurred Economic Boom, Dies at 92
The country’s first Sikh prime minister, he introduced free-market reforms that turned India into an economic powerhouse and sought reconciliation with Pakistan.
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Epigenetics Podcast @epigeneticspod.bsky.social · 20/12/2024
In this episode of the Epigenetics Podcast, we talked with @maxvcg.bsky.social from the @ijmonod.bsky.social about his work on epigenetic consequences of DNA methylation in development. #podcast #chromatin #epigenetics Listen here: buff.ly/3ZXWGuy
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Reposted by Shiv Grewal
Oded Rechavi @odedrechavi.bsky.social · 05/12/2024
Scared to share this after 10 freaking years of waiting, but here we go: We found that temperature *perception* can change the biology of the next generations, even when “it’s just in the parents' head”. Read how C. elegans neurons control epigenetic inheritance! www.biorxiv.org/content/10.1...
biorxiv.org
Perception of Temperature Even in the Absence of Actual Change is Sufficient to Drive Transgenerational Epigenetic Inheritance
Can processes occurring in one individuals nervous system influence the physiology of the descendants? Here we explored the provocative hypothesis that parents sensation or perception of environmental...
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The Braun Lab @thebraunlab.bsky.social · 29/11/2024
Thrilled to join the amazing community here on Bluesky! 🌟 Kicking off our first post with exciting news: the advanced version of our preprint is now published in Nucleic Acids Research! 🙌 [Read here: academic.oup.com/nar/advance-... Here’s a quick recap of our findings previously shared on X: 👇
academic.oup.com
A systematic quantitative approach comprehensively defines domain-specific functional pathways linked to Schizosaccharomyces pombe heterochromatin regulation
Abstract. Heterochromatin plays a critical role in regulating gene expression and maintaining genome integrity. While structural and enzymatic components h
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Shiv Grewal @grewalsh.bsky.social · 28/11/2024
“Happy Thanksgiving! 🦃🍁 Wishing everyone a day filled with gratitude, love, and good food! Let’s take a moment to count our blessings and cherish the ones we hold dear 🧡 #Thanksgiving #Gratitude”
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Reposted by Shiv Grewal
Jamie Hackett @jamiehackett.bsky.social · 26/11/2024
📢 Preprint! How does the environment of a father before conception influence offspring? Even more, how do paternal genetics & ages interact with exposures to affect F1 outcome? We tested this systematically, with intriguing findings & some cautionary tales🧵... www.biorxiv.org/content/10.1...
biorxiv.org
Embryonic Signatures of Intergenerational Inheritance across Paternal Environments and Genetic Backgrounds
The paternal preconception environment has been implicated as a modulator of phenotypic traits and disease risk in F1 offspring. However, the prevalence and mechanisms of such intergenerational epigen...
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Maxim Greenberg @maxvcg.bsky.social · 26/11/2024
Very happy to see @grothlab.bsky.social , @helink.bsky.social and @grewalsh.bsky.social all migrating over here! All pillars of the the #epigenetics and chromatin community.
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