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Marta Olszewska, PhD

@drmaolsz.bsky.social
120 followers 195 following 4 posts

Dept. of Reprod. Biol. and Genomics of Gamete (Head), Institute of Human Genetics PAS (Assoc. Prof.); cytogenetics, genetics, epigenetics of male infertility 🧬🔬

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Reposted by Marta Olszewska, PhD
Marta Olszewska, PhD @drmaolsz.bsky.social · 30/07/2026
🧪 Open PhD student position in my team! If you are interested in spatial transcriptomics in gametogenesis (mouse models) - apply here: igcz.poznan.pl/wp-content/u... Deadline: 10th Sept 2026 🐭💻🔬🧬🧪
igcz.poznan.pl
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Marta Olszewska, PhD @drmaolsz.bsky.social · 30/07/2026
🧪 Open PhD student position in my team! If you are interested in spatial transcriptomics in gametogenesis (mouse models) - apply here: igcz.poznan.pl/wp-content/u... Deadline: 10th Sept 2026 🐭💻🔬🧬🧪
igcz.poznan.pl
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Reposted by Marta Olszewska, PhD
Vincent Pasque @pasquelab.bsky.social · 25/06/2026
Epiblast diversification and blood formation in a human pregastrula. www.nature.com/articles/s41...
nature.com
Epiblast diversification and blood formation in a human pregastrula - Nature
High-resolution spatial transcriptome analysis of a human embryo at Carnegie stage 6 reveals three distinct developmental trajectories from the epiblast towards amnion, primitive streak and axial meso...
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Reposted by Marta Olszewska, PhD
Fantauzzo Lab @fantauzzolab.bsky.social · 20/06/2026
Final student photos from the Mouse Development, Stem Cells & Cancer course @cshlcourses.bsky.social! IF of E14.5 skin (left) and face (right) stained with Col4 (yellow/green), phalloidin (magenta/orange), Ecad (green/pink). Images taken by students @negberry.bsky.social and @drmaolsz.bsky.social.
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Reposted by Marta Olszewska, PhD
Piotr Ziolkowski @piotraz.bsky.social · 25/10/2025
⏰ Last week to apply! Don’t miss the chance to join our lab and explore the fascinating world of meiotic recombination 🌿 👉 Deadline: Nov 1, 2025
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Reposted by Marta Olszewska, PhD
bioRxivpreprint @biorxivpreprint.bsky.social · 09/06/2025
Impact of Sperm Fractionation on Chromosome Positioning, Chromatin Integrity, DNA Methylation and Hydroxymethylation Level www.biorxiv.org/content/10.1101/202…
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Marta Olszewska, PhD @drmaolsz.bsky.social · 13/05/2025
If you are an enthusiast of molecular biology and want to reveal the secrets of infertility - join our team!🐭 🔬 🧬 🧫 Open positions for two PhD students. We guarantee a lot of fun and satisfaction 😁 🎉 💻 🧬 🧪 🧫 More details:
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Reposted by Marta Olszewska, PhD
European Commission @ec.europa.eu · 08/05/2025
Choose Science. Choose Europe. A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open. With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond. Apply by 10 September → europa.eu/!fBTMgF
A graphic for the Marie Skłodowska-Curie Actions (MSCA), showing a historical portrait of Marie Skłodowska-Curie overlaid with an image of four young researchers walking down a hallway. The European Commission logo is in the top left. Text reads: "Marie Skłodowska-Curie Actions – €404.3 million to support postdoctoral researchers”
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Alejandro Montenegro @aemonten.bsky.social · 09/05/2025
Reposting in case anyone can help 😊
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Reposted by Marta Olszewska, PhD
IMBB AMU Poznań @uam-ibmib.bsky.social · 29/04/2025
Gene Therapy Lab @uam-ibmib.bsky.social led by Prof. Krzysztof Sobczak is looking for enthusiastic PhD student for the EU MSCA Doctoral Network project on therapeutical potential of antisense oligonucleotides in myotonic dystrophy, check out link for details! #ASO euraxess.ec.europa.eu/jobs/324410
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Reposted by Marta Olszewska, PhD
Stylianos Lefkopoulos (he/him) @slefkopoulos.bsky.social · 24/04/2025
🥂Congratulations to @jzylicz.bsky.social & co for their new study in our journal (@natcellbio.nature.com) showing that dimethyl α-ketoglutarate enhances the production and functional maturation of human trophectoderm-like cells from embryonic #StemCells. @ucph.bsky.social bit.ly/3EGflmL
bit.ly
α-Ketoglutarate promotes trophectoderm induction and maturation from naive human embryonic stem cells - Nature Cell Biology
Van Nerum et al. show that dimethyl α-ketoglutarate enhances the production and functional maturation of human trophectoderm-like cells from embryonic stem cells by regulating histone acetyltransferas...
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Reposted by Marta Olszewska, PhD
ISSCR @isscr.org · 02/04/2025
Join Embryo Working Group co-chairs Amander Clark and Janet Rossant on 21 April! This webinar will summarize the group’s findings on stem cell-based embryo model research and discuss proposed revisions to ISSCR guidelines 👉 bit.ly/3DuRGoK @gairdnerawards.bsky.social @uclastemcell.bsky.social
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Reposted by Marta Olszewska, PhD
Aleksandra Skrajna @askrajna.bsky.social · 20/03/2025
My most challenging postdoctoral project, where we show that histones but not nucleosomes are polyubiqutinated by the APC/C for a potential proteasomal degradation was just published in @naturecomms.bsky.social 🎉 www.nature.com/articles/s41... Big shout-out to all co-authors!!!
nature.com
APC/C-mediated ubiquitylation of extranucleosomal histone complexes lacking canonical degrons - Nature Communications
The APC/C ubiquitylates histones to regulate gene expression in pluripotent cells. Here, the authors pair cryo-EM and biochemical and biophysical assays to show that instead of modifying nucleosome-in...
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Reposted by Marta Olszewska, PhD
NU Duncan Lab @nuduncanlab.bsky.social · 19/03/2025
The 4th Reproductive Aging Conference program is stacked with amazing speakers! Register today for the only international meeting dedicated solely to mechanisms of reproductive aging. www.reproductiveagingconference.com #ReproAging2025 @jennifergarrison.bsky.social @buckinstitute.org
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Reposted by Marta Olszewska, PhD
Harmit Singh Malik @harmitmalik.bsky.social · 28/01/2025
If you have been affected by the fires in LA, or are concerned about your ability to keep precious Drosophila strains going during the latest funding crisis, we will host your strains as a backup. Please email me. Please amplify. If you are also able to host fly strains, add your name as well.
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Reposted by Marta Olszewska, PhD
Alberto de la Iglesia @albiglero.bsky.social · 29/01/2025
We have just published our latest work about the different regulatory roles of DOT1L in male germ cells 🎉 find all details on @juliecocquet.bsky.social ‘s thread below 👇🏻
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Reposted by Marta Olszewska, PhD
Nature Portfolio @natureportfolio.nature.com · 22/01/2025
What is the state of trust in scientists around the world? A study in Nature Human Behaviour reports on a survey of 71,922 respondents in 68 countries and finds that trust in scientists is moderately high. go.nature.com/3PLgKKU 🧪
This is figure 1, which shows weighted means for trust in scientists across countries and regions (1 = very low, 3 = neither high nor low, 5 = very high).
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Reposted by Marta Olszewska, PhD
Oded Rechavi @odedrechavi.bsky.social · 17/01/2025
When the dog bites When the bee stings When I'm feeling sad I simply remember my paper 𝑖𝑛 𝑝𝑟𝑒𝑠𝑠 And then I don't feel so bad
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Reposted by Marta Olszewska, PhD
Maxim Greenberg @maxvcg.bsky.social · 17/01/2025
A big mystery to me is what DNMT3B is doing in the male germline. It's expressed, but there is no strong KO phenotype like the other DNMTs. Antoine Peters and team @fmiscience.bsky.social do careful genetic dissection here, and show that DNMT3B indeed has a role www.nature.com/articles/s41...
nature.com
DNA methylation modulates nucleosome retention in sperm and H3K4 methylation deposition in early mouse embryos - Nature Communications
Here, the authors identify that reduced DNA methylation in developing germ cells alters nucleosome retention in sperm and allows H3K4me3 establishment on paternal DNA in early embryos, highlighting a ...
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Reposted by Marta Olszewska, PhD
COST CA20119 ANDRONET @andronet.bsky.social · 13/01/2025
The International Workshop "Andrology and Reproductive Medicine" is taking place May 9 2025 in Riga, Latvia. A great selection of speakers including several Andronet members. Details here: ivfriga.lv/en/participa... The registration dealine is May 1 2025
ivfriga.lv
The International Workshop | Andrology and Reproductive Medicine
Join the international workshop 'Andrology and Reproductive Medicine'. Explore clinically significant issues in the field of male reproductive health.
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Reposted by Marta Olszewska, PhD
Kristina Killgrove @killgrove.bsky.social · 09/01/2025
The 16th century burial regalia were found wrapped in newspaper dated Sept 1939 and squirreled away in a wall under a staircase in the Vilnius Cathedral's crypt. 🏺🧪
livescience.com
Medieval crowns of Eastern European royalty hidden in cathedral wall since World War II finally recovered
A cache of precious metal regalia recently discovered in a Lithuanian cathedral sheds light on medieval royalty.
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Reposted by Marta Olszewska, PhD
Teif lab @teiflab.bsky.social · 29/12/2024
The structural basis for de novo DNA methylation in chromatin www.biorxiv.org/content/10.1... ▶️DNMT3A2/3B3 preferentially binds di-nucleosomes separated by short DNA linkers ▶️Linker length and position of cytosines control DNA methylation ▶️a large fraction of linkers is resistant to DNMT3A2/3B3
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Marta Olszewska, PhD @drmaolsz.bsky.social · 04/12/2024
@ncngovpl.bsky.social Thanks to NCN I will be able to study human spermatogenesis and oogenesis on knockout mouse models with the spatial transcriptomics resolution 🧬🔬🐭I am pleased to start a new OPUS27 Project 😁
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Reposted by Marta Olszewska, PhD
John Greally @greally.bsky.social · 02/12/2024
A reason I am very wary of the loose ways we think about 'epigenetics' is because of these kinds of conclusions: DNA methylation mediates the link between adversity and depressive symptoms. www.nature.com/articles/s44...
nature.com
DNA methylation mediates the link between adversity and depressive symptoms - Nature Mental Health
Using epigenome-wide mediation analyses to investigate DNA methylation as a path between adversity and depression, the authors found 31 cytosine–guanine dinucleotides (CpGs) associated with risk and 3...
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Reposted by Marta Olszewska, PhD
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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Reposted by Marta Olszewska, PhD
Nature Portfolio @natureportfolio.nature.com · 19/11/2024
Fat tissue retains a ‘memory’ of obesity through cellular transcriptional and epigenetic changes that persist after weight loss, which might increase the chance of regaining weight, according to a study in Nature. go.nature.com/48ZTVfg
This is figure 1, which shows human adipose tissue retains cellular transcriptional changes after BaS-induced weight loss.
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Reposted by Marta Olszewska, PhD
Eileen Furlong @eileen-furlong.bsky.social · 18/11/2024
My first post on Blue Sky - moving over ! For all post-docs out there - fantastic opportunity @EMBL. Independent group leader position: Core funding, state-of-the-art core facilities, access to fantastic Ph.D. students, and of course amazing colleagues. Please apply www.embl.org/jobs/positio...
embl.org
EMBL Jobs
We offer a wide range of challenging scientific and non-scientific positions at all of our European locations and encourage applications from international candidates at all career levels.
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