Any #tiledb #scRNA users out there?

I am ingesting data from an `h5ad` file into a soma with `tiledbsoma.io.from_h5ad` (#python API).

Does this function load the entire h5ad into memory before conversion? Python keeps crashing which I am guessing are OOO issues. If yes, is there another option to do this conversion without loading the data in memory?

It would be strange if the only option is to load the whole thing into memory considering how massive scRNA datasets are these days.

Our #NEIfunded study led by Farhad Farjood, Nathan Boles & Jeffrey Stern reveals heterogeneity of retinal pigment epithelium cells in the human eye using #scRNA-seq & proteomics. We describe unique spatial patterns that suggest functional differences for RPE subpopulations in the eye.

- with S. Nandakumar, T. Bertucci, T. Kiehl, S. Lotz, Yue Wang, J. Black, S. Sai, J. Kozak, B. Arduini and S. Temple

This work was supported by the NIH & Luxa Biotech.

Full text | https://zurl.co/4hwI6

Qing Nie
System learning of single cells

Fascinating talk about analyses of single cell data

Eg paper on angiogenesis in #elife
"Spatial–temporal order–disorder transition in angiogenic NOTCH signaling controls cell fate specification"
#ScRNA #cellchat #rna #notch #cellbiology

https://elifesciences.org/articles/89262
https://faculty.sites.uci.edu/qnie/

Happy to see out our latest work on studying animal body size variations using single cell transcriptomics to measure gene expression of individual cells. Learned my fair bit of statistics here, and most importantly I learned how to build wrapper functions for "complex" tasks in R (such as differntial gene expression) in a modular way. Thanks to all the authors involved! https://www.science.org/doi/10.1126/sciadv.adm7042 #singlecell #scrna #allometry #splitseq #planarians #generegulation

Pipeline release! nf-core/scnanoseq v1.0.0 - nf-core/scnanoseq v1.0.0 - Titanium Toad!

Please see the changelog: https://github.com/nf-core/scnanoseq/releases/tag/1.0.0

#10xgenomics #long-read-sequencing #nanopore #scrna-seq #single-cell #nfcore #openscience #nextflow #bioinformatics

Release nf-core/scnanoseq v1.0.0 - Titanium Toad · nf-core/scnanoseq

v1.0.0 [2024-10-07] Initial release of nf-core/scnanoseq, created with the nf-core template.

GitHub
Interesting #cegs_ica virtual Seminar on October 1st at 12 PM ET featuring spatial transcriptomics at low cost delivered by Cao lab
#spatial #scRNA
https://x.com/satijalab/status/1835736250256588983
Rahul Satija (@satijalab) on X

Our next @cegs_ica Virtual Seminar (12PM on 10/1) @Abdul_Squared introduces IRISeq, a new technology to perform spatial transcriptomics in a highly scalable and cost-effective way (<$50/tissue section)- no optics or imaging required! Free registration: https://t.co/9XvsW3d3Ms

X (formerly Twitter)

Getting structurally homogenous spatial samples is often challenging.

We developed a method to map the spatial context of cells between heterogenous samples gaining insights into development and patient sub-populations!

#SpatialBiology #scRNA #compbio

https://www.biorxiv.org/content/10.1101/2024.08.31.610638v1

@lwpembleton @grrrck @adamhsparks @defuneste @danwwilson @milesmcbain @njtierney @jimjamslam the workstation at work (ubuntu 22, 24 cores, 125GB RAM memory, 2TB storage). Working very well for omics analysis #single_cell #scRNA, #methylation and #transcriptomics #ShareYourSetup
Single-cell multiplex chromatin and RNA interactions in ageing human brain
#scRNA #newtech #multiomics
https://www.nature.com/articles/s41586-024-07239-w
Single-cell multiplex chromatin and RNA interactions in ageing human brain - Nature

We introduce multinucleic acid interaction mapping in single cells (MUSIC), for concurrent profiling of multiplex chromatin interactions, gene expression and RNA–chromatin associations within individual nuclei, as a tool for exploring chromatin architecture and transcription.

Nature