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Karteris_Lab

@karteris.bsky.social

Professor, Bioscientist. Interested in cancer biomarker development, liquid biopsies, and space exploration. Views are of my own. #ovariancancer #CTCs #liquidbiopsy #microgravity #endometrialcancer ๐Ÿฉธ๐Ÿงฌ๐Ÿ”ฌ๐Ÿฉบ๐Ÿ›ฐ๐Ÿš€

66 Followers  |  87 Following  |  9 Posts  |  Joined: 05.12.2024  |  1.642

Latest posts by karteris.bsky.social on Bluesky


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Pregnancy in space: studying stem cells in zero gravity may determine whether itโ€™s safe Avoid while pregnant or trying to conceive: smoking, drinking, space travel.

Pregnancy in space: studying stem cells in zero gravity may determine whether itโ€™s safe.
#Space #Pregnancy
#Mars #Placenta

theconversation.com/pregnancy-in...

10.01.2025 18:15 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
More than 60 German universities and research institutions leave X - Research Professional News Changes to the social media platform make further use โ€œuntenableโ€, group says

www.researchprofessionalnews.com/rr-news-euro...

10.01.2025 17:55 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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"The UK is so vulnerable to being influenced by money coming in from people like Musk into our political system because we don't have any checks and balances."

Former Green Party leader Caroline Lucas discusses Musk and British politics.

#Newsnight

10.01.2025 10:24 โ€” ๐Ÿ‘ 488    ๐Ÿ” 145    ๐Ÿ’ฌ 39    ๐Ÿ“Œ 18
Another UK university drops big Elsevier deal - Research Professional News York becomes third institution known to have cancelled agreement with academic publishing giant

www.researchprofessionalnews.com/rr-news-uk-u...

08.01.2025 20:08 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Deep Learning Model for Predicting Immunotherapy Response in Advanced NSCLC This multicenter cohort study develops and assesses the validity of a deep learning model for predicting immune checkpoint inhibitor response in patients with advanced nonโˆ’small cell lung cancer.

Will the future of lung cancer biomarkers be based on deep learning and #AI? Deep learning model predicts response to immunotherapy in NSCLC from one histology slide and performed better than TMB, PD-L1. Report now in JAMA Oncology.

jamanetwork.com/journals/jam...

30.12.2024 16:28 โ€” ๐Ÿ‘ 10    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Science in 2025: what to expect this year Hear the biggest stories from the world of science | 01 January 2025

What to expect in science this year: A new wave of obesity drugs, a multitude of space missions and concern over climate-action policies. ๐Ÿงช

www.nature.com/articles/d41...

01.01.2025 19:58 โ€” ๐Ÿ‘ 69    ๐Ÿ” 20    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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How AI is unlocking ancient texts โ€” and could rewrite history From deciphering burnt Roman scrolls to reading crumbling cuneiform tablets, neural networks could give researchers more data than theyโ€™ve had in centuries.

From deciphering burnt Roman scrolls to reading crumbling cuneiform tablets, neural networks could give researchers more data than theyโ€™ve had in centuries.

www.nature.com/articles/d41... ๐Ÿงช

02.01.2025 15:30 โ€” ๐Ÿ‘ 58    ๐Ÿ” 21    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 4
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Wishing everyone a Happy, Prosperous, and Productive New Year! Here's to new research opportunities ahead!

#HappyNewYear #2025

02.01.2025 14:58 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Are you a Chinese student? Then you are eligible for a Brunel University of London and the China Scholarship Council PhD Scholarship!

ไผฆๆ•ฆๅธƒ้ฒๅ†…ๅฐ”ๅคงๅญฆๅ’Œไธญๅ›ฝๅ›ฝๅฎถ็•™ๅญฆๅŸบ้‡‘ๅง”ๅšๅฃซๅฅ–ๅญฆ้‡‘้กน็›ฎย 2025/26
่ฏฅๅฅ–ๅญฆ้‡‘้กน็›ฎไธบๆˆ็ปฉไผ˜็ง€็š„ไธญๅ›ฝๅญฆ็”Ÿๆไพ›ๅœจไผฆๆ•ฆๅธƒ้ฒๅ†…ๅฐ”ๅคงๅญฆๆ”ป่ฏปๅšๅฃซๅญฆไฝ็š„ๆœบไผšใ€‚่ฏฅๅฅ–ๅญฆ้‡‘็”ฑไธญๅ›ฝๅ›ฝๅฎถ็•™ๅญฆๅŸบ้‡‘ๅง” (CSC) ๅ’Œไผฆๆ•ฆๅธƒ้ฒๅ†…ๅฐ”ๅคงๅญฆๅ…ฑๅŒ่ต„ๅŠฉใ€‚๐ŸŽ“

Email mkarteris@gmail.com for more details.
#PhD #China

24.12.2024 10:50 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Wishing you all the best for the Holiday Season ๐ŸŽ„โ˜ƒ๏ธ๐Ÿฅ‚

22.12.2024 22:38 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Network analysis of TCGA and GTEx gene expression datasets for identification of trait-associated biomarkers in human cancer - PMC
pmc.ncbi.nlm.nih.gov/articles/PM...

22.12.2024 14:45 โ€” ๐Ÿ‘ 7    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Endothelial inflammation in COVID-19 Disrupted endothelial function underlies the multiorgan complications of COVID-19

Infection with #SARSCoV2 has highlighted how altered endothelial functions contribute to multiorgan health effects during the acute phase of #COVID19 and potentially to the longer-term consequences associated with #LongCovid.

Learn more in a new #SciencePerspective:

17.12.2024 19:45 โ€” ๐Ÿ‘ 75    ๐Ÿ” 23    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 3
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Ho ho ho ๐ŸŽ…

17.12.2024 17:08 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Black Hole

06.12.2024 01:33 โ€” ๐Ÿ‘ 6785    ๐Ÿ” 437    ๐Ÿ’ฌ 103    ๐Ÿ“Œ 39

A scientist new to Bluesky? @steveharoz.com and @markrubin.bsky.social have put together some great resources to get you started!

05.12.2024 17:31 โ€” ๐Ÿ‘ 56    ๐Ÿ” 34    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
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The abstract - The paper

05.12.2024 22:04 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The "Road" to Malignant Transformation from Endometriosis to Endometriosis-Associated Ovarian Cancers (EAOCs): An mTOR-Centred Review - PubMed Ovarian cancer is an umbrella term covering a number of distinct subtypes. Endometrioid and clear-cell ovarian carcinoma are endometriosis-associated ovarian cancers (EAOCs) frequently arising from ec...

Our latest review entitled: "The Road to Malignant Transformation from Endometriosis to Endometriosis-Associated Ovarian Cancers (EAOCs): An mTOR-Centred Review" is out! #mTOR
pubmed.ncbi.nlm.nih.gov/38893278/

05.12.2024 17:27 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Clearest image ever taken of Heart Nebula, located 7500 light years away from us

05.12.2024 12:34 โ€” ๐Ÿ‘ 6230    ๐Ÿ” 512    ๐Ÿ’ฌ 120    ๐Ÿ“Œ 35
Credit: NASA, ESA, CSA, STScI

Image of a galaxy on the black background of space. The galaxy is a very oblong, blue disk that extends from left to right at an angle (from about 10 oโ€™clock to 5 oโ€™clock). The galaxy has a small bright core at the centre. There is an inner disk that is clearer, with speckles of stars scattered throughout. The outer disk of the galaxy is whiteish-blue, and clumpy, like clouds in the sky. There are different coloured dots, distant galaxies, speckled among the black background of space surrounding the galaxy.

Credit: NASA, ESA, CSA, STScI Image of a galaxy on the black background of space. The galaxy is a very oblong, blue disk that extends from left to right at an angle (from about 10 oโ€™clock to 5 oโ€™clock). The galaxy has a small bright core at the centre. There is an inner disk that is clearer, with speckles of stars scattered throughout. The outer disk of the galaxy is whiteish-blue, and clumpy, like clouds in the sky. There are different coloured dots, distant galaxies, speckled among the black background of space surrounding the galaxy.

The JWST recently got up-close and personal with the Sombrero Galaxy, located around 30 million light-years away. ๐ŸŒŒ

This new image was taken using its MIRI instrument, for which the UK led the design and build. ๐Ÿ›ฐ๏ธ

Read more about the UK's involvement in JWST ๐Ÿ‘‰ www.gov.uk/government/c...

05.12.2024 15:27 โ€” ๐Ÿ‘ 12    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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What was agreed at COP29? The United Nations Climate Change Conference (COP29) was held from 11 to 22 November 2024 in Baku, Azerbaijan. This briefing covers new developments from the conference and their reception.

I'm about 3 months into my secondment to Parliament and here's the first solid evidence of me having done something (although Nuala wrote almost all it... I argued about small, inconsequential details in the comments... so playing to my strengths ๐Ÿ˜‚) commonslibrary.parliament.uk/research-bri...

05.12.2024 15:21 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Liquid biopsies. Dr Klaus Pantel of Hamburg Germany studies mets and micro mets #AACR18

15.04.2018 15:13 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Circulating cell-free DNA (cfDNA) liquid biopsies offer a powerful, non-invasive approach for cancer diagnostics, leveraging DNA fragments primarily released during apoptosis. In this process, nucleosome-bound DNA is protected, while linker DNA is cleaved, generating fragments around 166 base pairs. Using droplet digital PCR (ddPCR) on cfDNA samples from 88 breast and colorectal cancer patients, we uncovered highly consistent nucleosome breakpoints across patients, significantly impacting the sensitivity of somatic mutation assays and underscoring the value of precise nucleosome positioning data. Here, we introduce an advanced fragmentomics method with probabilistic nucleosome protection scoring, enabling high-resolution mapping of nucleosome positions and cfDNA breakpoints. Our results reveal that while the 166 bp fragment size is common to both euchromatin and heterochromatin, it masks distinct nucleosome spacing patterns linked to two chromatin fiber conformations, T1 and T2 topoisomers. This insight enhances understanding of chromatin's role in cfDNA fragmentation, advancing diagnostic potential for liquid biopsy assays.

Circulating cell-free DNA (cfDNA) liquid biopsies offer a powerful, non-invasive approach for cancer diagnostics, leveraging DNA fragments primarily released during apoptosis. In this process, nucleosome-bound DNA is protected, while linker DNA is cleaved, generating fragments around 166 base pairs. Using droplet digital PCR (ddPCR) on cfDNA samples from 88 breast and colorectal cancer patients, we uncovered highly consistent nucleosome breakpoints across patients, significantly impacting the sensitivity of somatic mutation assays and underscoring the value of precise nucleosome positioning data. Here, we introduce an advanced fragmentomics method with probabilistic nucleosome protection scoring, enabling high-resolution mapping of nucleosome positions and cfDNA breakpoints. Our results reveal that while the 166 bp fragment size is common to both euchromatin and heterochromatin, it masks distinct nucleosome spacing patterns linked to two chromatin fiber conformations, T1 and T2 topoisomers. This insight enhances understanding of chromatin's role in cfDNA fragmentation, advancing diagnostic potential for liquid biopsy assays.

We have generated high-resolution nucleosome maps in paired tumour and normal tissues from the same breast cancer patients using MNase-assisted histone H3 ChIP-seq and compared them with the corresponding cfDNA from blood plasma. This analysis has detected single-nucleosome repositioning at key regulatory regions in a patient-specific manner and common cancer-specific patterns across patients. The nucleosomes gained in tumour versus normal tissue were particularly informative of cancer pathways, withโ€‰~โ€‰20-fold enrichment at CpG islands, a large fraction of which marked promoters of genes encoding DNA-binding proteins. The tumour tissues were characterised by a 5โ€“10 bp decrease in the average distance between nucleosomes (nucleosome repeat length, NRL), which is qualitatively similar to the differences between pluripotent and differentiated cells. This effect was correlated with gene activity, differential DNA methylation and changes in local occupancy of linker histone variants H1.4 and H1X. Our study offers a novel resource of high-resolution nucleosome maps in breast cancer patients and reports for the first time the effect of systematic decrease of NRL in paired tumour versus normal breast tissues from the same patient. Our findings provide a new mechanistic understanding of nucleosome repositioning in tumour tissues that can be valuable for patient diagnostics, stratification and monitoring.

We have generated high-resolution nucleosome maps in paired tumour and normal tissues from the same breast cancer patients using MNase-assisted histone H3 ChIP-seq and compared them with the corresponding cfDNA from blood plasma. This analysis has detected single-nucleosome repositioning at key regulatory regions in a patient-specific manner and common cancer-specific patterns across patients. The nucleosomes gained in tumour versus normal tissue were particularly informative of cancer pathways, withโ€‰~โ€‰20-fold enrichment at CpG islands, a large fraction of which marked promoters of genes encoding DNA-binding proteins. The tumour tissues were characterised by a 5โ€“10 bp decrease in the average distance between nucleosomes (nucleosome repeat length, NRL), which is qualitatively similar to the differences between pluripotent and differentiated cells. This effect was correlated with gene activity, differential DNA methylation and changes in local occupancy of linker histone variants H1.4 and H1X. Our study offers a novel resource of high-resolution nucleosome maps in breast cancer patients and reports for the first time the effect of systematic decrease of NRL in paired tumour versus normal breast tissues from the same patient. Our findings provide a new mechanistic understanding of nucleosome repositioning in tumour tissues that can be valuable for patient diagnostics, stratification and monitoring.

Interesting new preprint on nucleosome spacing from cfDNA [Johnston et al., 2024] biorxiv.org/content/10.1.... The authors refer to NRL changes 10n -> 10n-5 bp. Earlier we showed that NRL decreases in cancer more continuously, context-specific [Jacob et al., 2024] link.springer.com/article/10.1...

19.11.2024 12:49 โ€” ๐Ÿ‘ 15    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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12 ways weโ€™ve influenced progress in lung cancerย  - Cancer Research UK - Cancer News From uncovering some of the causes of lung cancer to developing treatments, here are 12 ways we have worked towards progress in lung cancer.

From uncovering some of the causes of lung cancer to developing new treatments, our investment in #LungCancer research has led to groundbreaking discoveries ๐Ÿ‘‡ #LungCancerAwarenessMonth news.cancerresearchuk.org/shorthand_st...

27.11.2024 12:06 โ€” ๐Ÿ‘ 25    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@karteris is following 18 prominent accounts