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Alex Y. Kreins

@alexyema.bsky.social
504 followers 361 following 14 posts

Wellcome Trust career development fellow treating #IEI patients (athymia/SCID) @GreatOrmondSt & translational research @uclchildhealth to improve their outcomes! profiles.ucl.ac.uk/70769-alexandra-…

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Reposted by Alex Y. Kreins
Casanova Lab @casanovalab.bsky.social · 25/09/2025
1/ We are celebrating the Novo Nordisk Prize Symposium: Inborn Errors of Immunity – a huge success yesterday at the @institutimagine.bsky.social in Paris featuring talks by 19 leading European researchers on human IEI
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Alex Y. Kreins @alexyema.bsky.social · 28/07/2025
Delighted to be speaking at the Novo Nordisk Symposium: Inborn Errors of Immunity, celebrating Jean-Laurent Casanova (my PhD advisor) and his landmark contributions. Join us Sept 24 at Institut Imagine, Paris. Free to attend! Details & registration 👇 #NNFPrize #Immunology
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Alex Y. Kreins @alexyema.bsky.social · 08/05/2025
Exciting milestone for #HumanImmunity with the very first full issue of @jhumimmunity.org out now, including the #IUIS update on inborn errors of immunity + resources for clinicians. rupress.org/jhi/issue/1/1 #OpenAccess #IEI 👏👏👏
rupress.org
Volume 1 Issue 1 | Journal of Human Immunity | Rockefeller University Press
Journal of Human Immunity (JHI) publishes papers that provide novel insights into the physiology and pathology of human immunity through the study of genetic defects and their phenocopies, including t...
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Alex Y. Kreins @alexyema.bsky.social · 07/05/2025
Delighted to share our manuscript highlighting the lessons learned from the clinical use of ex vivo T-lymphopoiesis assays to assist therapeutic decision-making btw #HCT and #thymus transplantation in patients without a molecular diagnosis after TREC-based newborn screening 👉 tinyurl.com/yzd8xe7p
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Reposted by Alex Y. Kreins
Casanova Lab @casanovalab.bsky.social · 25/04/2025
1/ I was honored to accept the 2025 Novo Nordisk Prize from @novo-nordisk.bsky.social at today’s award ceremony in Copenhagen, Denmark. It was a wonderful day that included a tour of The BioInnovation Institute, lunch at @novo-nordisk.bsky.social, and an evening award celebration and dinner.
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Reposted by Alex Y. Kreins
Casanova Lab @casanovalab.bsky.social · 24/04/2025
1/ Today we spotlight @sanchoshimizu.bsky.social, a postdoc in our Paris branch from 2006-12 and now Reader/Associate Professor at @imperialcollegeldn.bsky.social in the department of infectious diseases and head of both of a lab there and a satellite lab at the @crick.ac.uk
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Reposted by Alex Y. Kreins
The Rockefeller University @rockefeller.edu · 15/04/2025
Open access, peer reviewed, and co-owned, @jhumimmunity.org from @rupress.org represents a new business model in scientific publishing. Rockefeller's Jean-Laurent Casanova is the founding editor-in-chief.
rockefeller.edu
Rockefeller University Press launches new journal in partnership with scientists - News
Open access, peer reviewed, and co-owned, the Journal of Human Immunity represents a new business model in scientific publishing.
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Alex Y. Kreins @alexyema.bsky.social · 14/04/2025
The #IBEX Knowledge-Base is an exciting initiative promoting open science and collaboration for immunofluorescence multiplexed imaging! New to this wonderful community and excited for the research ahead! Find out more 👇🏾
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Reposted by Alex Y. Kreins
Journal of Experimental Medicine @jem.org · 09/04/2025
The @alexyema.bsky.social lab and colleagues show that dominant negative variants in ITPR3 impair T cell Ca²⁺ dynamics causing combined immunodeficiency. rupress.org/jem/article/... 📘 In Genes & Immunity collection: rupress.org/jem/collecti... #HKS2025
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Alex Y. Kreins @alexyema.bsky.social · 22/03/2025
Very grateful to have been introduced to the wonderful #IBEX Knowledge-Base community 👇🏾 and to this novel spatial proteomics technique. Looking forward to more multiplexed imaging!
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Reposted by Alex Y. Kreins
Casanova Lab @casanovalab.bsky.social · 04/03/2025
1/ I am both delighted and relieved to share my inaugural editorial for the @jhumimmunity.org rupress.org/jhi/article/...
rupress.org
Human immunity | Journal of Human Immunity | Rockefeller University Press
Human immunity is often insufficient against infectious agents and sometimes over-reactive to innocuous components of the environment or the human body. Ge
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Reposted by Alex Y. Kreins
Nico Dauby MD PhD @infectiobxl.bsky.social · 01/03/2025
Unjustified silence in the face of this new war in eastern DR Congo "Inaction implies resignation to the idea that the survival of the fittest governs the world's fate" Correspondence in @thelancet.bsky.social www.thelancet.com/journals/lan...
thelancet.com
Unjustified silence in the face of this new war in eastern DR Congo
Since Jan 23, 2025, the rebel March 23 Movement (M23), with the support of Rwanda, has launched an offensive in eastern Democratic Republic of the Congo, further exacerbating the region's ongoing conf...
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Alex Y. Kreins @alexyema.bsky.social · 27/02/2025
Our clinical experience using ex vivo T-lymphopoiesis assays to assist clinical decision-making between #HCT for #SCID & #thymus transplantation for #athymia in genetically undefined T-lymphocytopaenia is published 👉 doi.org/10.1016/j.cl... Thank you to all collaborators and referring clinicians!
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Reposted by Alex Y. Kreins
Journal of Human Immunity @jhumimmunity.org · 26/02/2025
Journal of Human Immunity (JHI) @jhumimmunity.org is here! Read the inaugural editorial by @casanovalab.bsky.social outlining #JHI’s vision as the destination for groundbreaking research in human immunity and inborn errors of immunity. buff.ly/4hRGpOb #OpenAccess
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Reposted by Alex Y. Kreins
Eric Topol @erictopol.bsky.social · 19/02/2025
Our thymus, a critical source and trainer of T cells, involutes with aging. 2 new studies find a growth factor (FGF21) that delays involution (in mouse models) and may be a way to rejuvenate our immune system and promote healthy aging in the future.
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Alex Y. Kreins @alexyema.bsky.social · 13/02/2025
Delighted & proud that this wonderful collection in @jem.org includes our study characterising dominant negative variants in ITPR3 in syndromic combined immunodeficiency patients due to calcium channel leakiness of the IP3 receptor, causing ER Ca2+ store depletion and impaired Ca2+ T cell dynamics.
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Reposted by Alex Y. Kreins
Auschwitz Memorial @auschwitzmemorial.bsky.social · 27/01/2025
Auschwitz was at the end of a long process. It did not start from gas chambers. This hatred was gradually developed by humans. From ideas, words, stereotypes & prejudice through legal exclusion, dehumanization & escalating violence... to systematic and industrial murder. Auschwitz took time.
A bird's-eye view of a former Auschwitz II-Birkenau camp showing a wide dirt pathway flanked by parallel rows of barbed-wire fences. Groups of visitors walk along the path, surrounded by the remnants of brick structures and barracks, now reduced to foundations. Green grass contrasts with the somber history of the site, as the path leads toward a guard tower in the distance.
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Reposted by Alex Y. Kreins
Journal of Human Immunity @jhumimmunity.org · 16/01/2025
Welcome to the future of #HumanImmunity research! @rupress.org and the International Alliance for Primary Immunodeficiency Societies (#IAPIDS) are launching the Journal of Human Immunity (JHI)! Stay tuned for groundbreaking, #OpenAccess research! 👉 buff.ly/4ajqm8W
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Reposted by Alex Y. Kreins
Bogunovic Lab @bogunoviclab.bsky.social · 01/01/2025
What Happens When Some Cells Are More Dad Than Mom (and Vice Versa)? Latest from us. Published today. News here www.cuimc.columbia.edu/news/what-ha... article here: www.nature.com/articles/s41... @stewart_ojay @BogunovicLab and a huge international team thank you 🙏🏼
cuimc.columbia.edu
What Happens When Some Cells Are More Dad Than Mom (and Vice Versa)?
A new study shows that some of our cells favor genes of one parent or the other and can explain a longstanding mystery of why some people with disease-causing genes experience no symptoms.
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Alex Y. Kreins @alexyema.bsky.social · 15/12/2024
On behalf of @ESIDsociety clinical working party, we have written guidelines with clinical practice recommendations focused on the diagnosis, investigation, risk stratification, and management of congenital #athymia with the aim to improve patient outcomes. Out now in @jacionline: bit.ly/4g4qkUs
bit.ly
European Society for Immunodeficiencies guidelines for the management of patients with congenital athymia
Congenital athymia is a life-limiting disorder due to rare inborn errors of immunity causing impaired thymus organogenesis or abnormal thymic stromal …
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Reposted by Alex Y. Kreins
Dr Claire Smith @drclairesmith.bsky.social · 11/12/2024
last 2 days to apply! : We have a fully funded #PhD #studentship available in my lab for Oct25 @UCLchildhealth. Project will research new treatments/targets for airway inflammation during viral infection using complex in vitro models. Deadline 13th Dec Apply here: forms.office.com/pages/respon...
ucl.ac.uk
UCL – University College London
UCL is consistently ranked as one of the top ten universities in the world (QS World University Rankings 2010-2022) and is No.2 in the UK for research power (Research Excellence Framework 2021).
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Reposted by Alex Y. Kreins
Clinical & Experimental Immunology @ceijournal.bsky.social · 11/12/2024
We are thrilled to announce that Prof. Claudia Mauri will join Clinical & Experimental Immunology (CEI) as Editor-in-Chief from January 2025 🎊 Find out more and hear about Prof. Mauri's plans for the journal here👉 www.immunology.org/news/welcome...
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Reposted by Alex Y. Kreins
irlalab.bsky.social @irlalab.bsky.social · 06/12/2024
Excited to share our 1st post ! Thrilled to share our latest research in Science Translational Medicine ! @science.org We show that RANKL administration reverses thymic involution and rejuvenates T cell immunity. @ciml.bsky.social #Aging #Thymus #Tcells #Immunology #Involution #Rejuvenation
science.org
RANKL treatment restores thymic function and improves T cell–mediated immune responses in aged mice
RANK ligand administration reversed age-dependent thymic involution and rejuvenated T cell immunity in mice.
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Reposted by Alex Y. Kreins
Romberg Lab @romberglab.bsky.social · 04/12/2024
go.bsky.app/L7XhT8H
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Reposted by Alex Y. Kreins
James Briscoe @jamesbriscoe.bsky.social · 04/12/2024
Applications open for a new cohort of @dev-journal.bsky.social *Pathway to Independence* fellows Know a #devbio post-doc about to enter the academic job market? Would they benefit from a little support & mentoring? Spread the word Deadline 31 Jan 2025 journals.biologists.com/dev/pages/pi...
journals.biologists.com
PI programme | Development | The Company of Biologists
PI programme | Development | The Company of Biologists Development's Pathway to Independence programme Development is excited to announce our call for our Pathway to Independence program...
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Reposted by Alex Y. Kreins
Taghon Lab @taghonlab.bsky.social · 23/11/2024
🚨Out now in Nature: Our spatial atlas of the developing thymus nature.com/articles/s41... Together with the labs of Sarah Teichmann, Ron Germain & John Marioni we present insights into the establishment of the thymic organ structure in pre- and postnatal life through a new spatial mapping approach.
nature.com
A spatial human thymus cell atlas mapped to a continuous tissue axis - Nature
A quantitative morphological framework for the human thymus reveals the establishment of the lobular cytokine network, canonical thymocyte trajectories and thymic epithelial cell distributions in...
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Reposted by Alex Y. Kreins
Sophie Acton @actonlab.bsky.social · 22/11/2024
Our latest preprint! - led by @makris1.bsky.social we find that Podoplanin expression in lymphoid tissue fibroblasts regulated their inflammatory signalling and crosstalk with immune cell populations doi.org/10.1101/2022...
single cell RNAseq data showing shifts in fibroblast phenotypes after genetic deletion of Podoplanin in lymph node stroma.
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Reposted by Alex Y. Kreins
Pallett Lab UCL @pallettlab.bsky.social · 19/11/2024
We’ve jumped on board fully here on 🦋 A starter pack of those working on our favourite cell … the T cell 🥰🙈🥰 If you want an add let us know go.bsky.app/8B5P25c
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Reposted by Alex Y. Kreins
Grant Stewart @profstewartlab.bsky.social · 19/11/2024
First post on BlueSky. Whilst it is not related to DNA repair or replication, an interesting study I was peripherally involved in is out now in J Exp Med. Dominant mutations in ITPR3 give rise to combined immunodeficiency in humans. Big shout out to Alexandra Kreins. rupress.org/jem/article/...
rupress.org
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Reposted by Alex Y. Kreins
The Kueh lab @kuehlab.bsky.social · 18/11/2024
I made a starter pack for those of us interested in or working on T cells. Let me know if you would like to be added or know somebody that should be added. Looking forward to scientific discussions and updates on our favorite immune cell type!
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