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Connor Rosen Profile picture
@connor_rosen
Mar 6, 2019 • 3 tweets • 3 min read • Read on X
Lots of other exciting news around #peerreview, #openaccess, #ASAPBio, and more in the last week or so... Of course, the news that the UC system is ending their contract with Elsevier is huge! universityofcalifornia.edu/press-room/uc-…
And, @ASAPbio_ opened the ReimagineReview registry for experiments in peer review (including @preLights!) - reimaginereview.asapbio.org. @eLife named @mbeisen as EIC, which is exciting news for a journal that does a great job pushing the publishing envelope - elifesciences.org/for-the-press/…
Also, this cool experiment from @LocasaleLab and @PLOSBiology to open up peer review! Wish I knew enough about endocrinology / glucose metabolism to contribute, but excited to see if the process is useful!

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More from @connor_rosen

Connor Rosen Profile picture
Sep 25, 2020
Here’s a thread on anti-interferon autoantibodies, viral infections, and human immunology. This is less a covid thread, and more an anti-covid thread, if anything…
Summary: anti-IFN auto-Abs may be reflective of chronic inflammation, and may pre-exist in vulnerable groups at high levels. Presence in severe covid cases may therefore reflect basal immune variation which impacts covid, rather than a special covid-specific phenomenon.
This is prompted based on the new Science paper on autoantibodies against Type I IFNs in severe covid patients (science.sciencemag.org/content/early/…). Basically, ~10% of severe covid patients had high titer anti-IFNa antibodies that were functionally neutralizing.
Read 23 tweets
Connor Rosen Profile picture
Jun 2, 2020
The message is very simple. #BlackLivesMatter
I'm grateful that others have put together resources like bit.ly/ANTIRACISMRESO…, which has helped me learn to be better. So You Want To Talk About Race by @IjeomaOluo and How To Be An Antiracist by @DrIbram have been amazing, and I'm looking forward to reading deeper.
I haven't seen a similar central resource for donations, but various recommendations led me to eji.org (Equal Justice initiative, focused on criminal justice reform and education), voterparticipation.org (get people registered to vote)...
Read 5 tweets
Connor Rosen Profile picture
Apr 21, 2020
The story about mitochondria being ~10° hotter than the rest of the cell, published @PLOSBiology a couple years ago (journals.plos.org/plosbiology/ar…) got some cool, albeit indirect, support recently @naturemethods… #Biophysics #CellBiology
The original paper, which was mainly based on the temperature-dependent fluorescence of a mitochondria-targeting probe, was accompanied by a “Primer” (journals.plos.org/plosbiology/ar…) highlighting potential flaws and implications, a special sort-of-peer-review step by PLOS Biology.
This new awesome resource @naturemethods - nature.com/articles/s4159… - offers some intriguing orthogonal validation. This is a proteome-wide study of protein thermal stability across 13 organisms, conducted using a mass-spec-based approach.
Read 11 tweets
Connor Rosen Profile picture
Nov 22, 2019
Super neat story on how cellular quality control impacts the mutational landscape of proteins - beneficial mutations in DHFR during deep mutational scanning are totally altered dependent on cellular QC #Biophysics #Evolution biorxiv.org/content/10.110… Way to go! @KortemmeLab
In an initial DMS experiment on DHFR, there were a large number (25% of all sequences!) of advantageous mutations spread across the whole protein. Reintroduction of QC protein Lon reduced the number of advantageous mutants and lowered average benefit of those mutations
Changes in selection coefficient (the “advantageous-ness”) were most striking at hydrophobic/aromatic residues and buried residues - and these correlate with Tm changes of variants. So Lon seems to be imposing higher standards on DHFR, particularly for destabilizing core mutants
Read 5 tweets
Connor Rosen Profile picture
Nov 20, 2019
A couple interesting bits of preliminary data on Langerhans cells and the huLangerin mouse used to study them. Effects of developmental absence of LCs on keratinocytes and T cells, and huLangerin-YFP labels some neurons (check your Cre mice!) #Genetics #Immunology
First - effect of loss of LCs in the huLangerin-DTA mice - biorxiv.org/content/10.110…. Bulk RNA-seq showed changes in keratinocytes and dendritic epidermal T cells, including cell-type specific changes (e.g. loss of IL17 pathway in DETCs).
Unfortunately, underlying data (either gene expression tables or raw RNA-seq data) don’t currently seem available, but hopefully the authors get that up shortly. Will be interesting to look at and prompt some hypotheses about how LCs control homeostasis and development.
Read 5 tweets
Connor Rosen Profile picture
Nov 18, 2019
CYTOF analysis of human neutrophils - 7 populations with differing phagocytosis, ROS, and FACS-compatible surface marker phenotypes. Changes in distribution between healthy + melanoma patients. #Immunology #Cancer #Neutrophils biorxiv.org/content/10.110…
Circulating neutrophil precursors, aged neutrophils, and a few populations of mature and immature neutrophils. Melanoma stage correlates with loss of dominant N2 (mature, ROS++, lowly phagocytic), and increase of N5 (immature, non-proliferative, ROS+, lowly phagocytic).
Interesting to note the phagocytosis-SSC staining in Fig4A - big changes in SSC for some populations with zymosan, others not so much - degranulation, different phagosomes…? Similarly, bimodal peaks for ROS production in same populations… Image
Read 4 tweets

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