Dean Griffiths PhD
London, England, United Kingdom
3K followers
500+ connections
About
With over 20 years of combined commercial and research experience in the life sciences…
Activity
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Extraordinary to see our Odysseus™ Platform's progress throughout 2024. The preclinical data continues to validate our scientific approach. We're…
Extraordinary to see our Odysseus™ Platform's progress throughout 2024. The preclinical data continues to validate our scientific approach. We're…
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SCHOTT M&A ending this year on a high note 📢 We are pleased to announce that we signed a definitive agreement to acquire QSIL GmbH Quarzschmelze…
SCHOTT M&A ending this year on a high note 📢 We are pleased to announce that we signed a definitive agreement to acquire QSIL GmbH Quarzschmelze…
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Experience
Education
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The University of Edinburgh
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Developed a new technique for and studied the molecular mechanisms involved in the conversion of embryonic stem cells to neurons. Supervisor: Professor Austin Smith FRS
- Creation and interrogation of genomic data to evaluate embryonic stem cell differentiation
- Research published in a leading journal Nature Biotechnology, to date cited over 1000 times -
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Publications
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LIF-independent JAK signalling to chromatin in embryonic stem cells uncovered from an adult stem cell disease
Nature Cell Biology
Activating mutations in the tyrosine kinase Janus kinase 2 (JAK2) cause myeloproliferative neoplasms, clonal blood stem cell disorders with a propensity for leukaemic transformation. Leukaemia inhibitory factor (LIF) signalling through the JAK-signal transducer and activator of transcription (STAT) pathway enables self-renewal of embryonic stem (ES) cells. Here we show that mouse ES cells carrying the human JAK2V617F mutation were able to self-renew in chemically defined conditions without…
Activating mutations in the tyrosine kinase Janus kinase 2 (JAK2) cause myeloproliferative neoplasms, clonal blood stem cell disorders with a propensity for leukaemic transformation. Leukaemia inhibitory factor (LIF) signalling through the JAK-signal transducer and activator of transcription (STAT) pathway enables self-renewal of embryonic stem (ES) cells. Here we show that mouse ES cells carrying the human JAK2V617F mutation were able to self-renew in chemically defined conditions without cytokines or small-molecule inhibitors, independently of JAK signalling through the STAT3 or phosphatidylinositol-3-OH kinase pathways. Phosphorylation of histone H3 tyrosine 41 (H3Y41) by JAK2 was recently shown to interfere with binding of heterochromatin protein 1α (HP1α). Levels of chromatin-bound HP1α were lower in JAK2V617F ES cells but increased following inhibition of JAK2, coincident with a global reduction in histone H3Y41 phosphorylation. JAK2 inhibition reduced levels of the pluripotency regulator Nanog, with a reduction in H3Y41 phosphorylation and concomitant increase in HP1α levels at the Nanog promoter. Furthermore, Nanog was required for factor independence of JAK2V617F ES cells. Taken together, these results uncover a previously unrecognized role for direct signalling to chromatin by JAK2 as an important mediator of ES cell self-renewal.
More activity by Dean
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CNX Therapeutics and Adalvo announce strategic agreement for commercialisation of Nitrofurantoin PR 👉 Read more: https://lnkd.in/e3sqZGwX
CNX Therapeutics and Adalvo announce strategic agreement for commercialisation of Nitrofurantoin PR 👉 Read more: https://lnkd.in/e3sqZGwX
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I am thrilled to share our latest publication in PNAS Nexus: "In silico prediction of pathogen’s pandemic potential using viral trait assessment for…
I am thrilled to share our latest publication in PNAS Nexus: "In silico prediction of pathogen’s pandemic potential using viral trait assessment for…
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Moelis acts as Exclusive Financial Advisor to Ayrmid Pharma, the parent company of Gamida Cell Ltd., on its in-license of rights to APHEXDA®️ and…
Moelis acts as Exclusive Financial Advisor to Ayrmid Pharma, the parent company of Gamida Cell Ltd., on its in-license of rights to APHEXDA®️ and…
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I was fortunate to speak at the Pfizer Edge Elevate Summit as part of the fireside chat hosted by Krista Martin! During this session, we discussed…
I was fortunate to speak at the Pfizer Edge Elevate Summit as part of the fireside chat hosted by Krista Martin! During this session, we discussed…
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… and this is why we are committed to help people with CHF
… and this is why we are committed to help people with CHF
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Exploring the Biotech & Pharma environment in the Middle East at CPHI Middle East at Riyadh Exhibition and Convention Center with Sebastian…
Exploring the Biotech & Pharma environment in the Middle East at CPHI Middle East at Riyadh Exhibition and Convention Center with Sebastian…
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The American Society of Hematology conference #ASH24 has been fantastic and super productive! I've had the chance to catch up with colleagues, meet…
The American Society of Hematology conference #ASH24 has been fantastic and super productive! I've had the chance to catch up with colleagues, meet…
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Quantification of active TGFβ in serum predicts treatment response in solid tumors - we are making a difference ! Treatment outcomes are deeply…
Quantification of active TGFβ in serum predicts treatment response in solid tumors - we are making a difference ! Treatment outcomes are deeply…
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Excited to attend the American Society of Hematology conference, meet colleagues, and hear about the latest cutting edge science! Come visit us at…
Excited to attend the American Society of Hematology conference, meet colleagues, and hear about the latest cutting edge science! Come visit us at…
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I’m happy to share that I’m starting a new position as Search & Evaluation Lead, GI & Inflammation, Takeda Center for External Innovation at Takeda!…
I’m happy to share that I’m starting a new position as Search & Evaluation Lead, GI & Inflammation, Takeda Center for External Innovation at Takeda!…
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