Mohamed ElTanbouly's Avatar

Mohamed ElTanbouly

@plasmacellguy.bsky.social

Immunologist https://linktr.ee/Immunologynotebook

1,819 Followers  |  1,166 Following  |  88 Posts  |  Joined: 03.07.2023  |  2.1422

Latest posts by plasmacellguy.bsky.social on Bluesky

Congrats Ruth and colleagues!!!

I enjoyed reading this...Fascinating discovery

Really great work

11.07.2025 14:06 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Congrats on your terrific effort Payal and co!!! ๐ŸŽ‰

Very nice and comprehensive study.

All the best with what comes next.

30.04.2025 00:18 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Novel multicellular prokaryote discovered next to an underground stream A new bacterium isolated from an underground stream shows a novel multicellularity by self-organizing its filamentous cells like a liquid crystal and accommodating daughter cells in a sequential manne...

What are your thoughts on this?

elifesciences.org/articles/71920

09.04.2025 14:38 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thanks very much for advising.

03.04.2025 15:34 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Might I ask you if any of these talks are available on NIHvideocast or youtube? Or accessible online?

03.04.2025 14:29 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image

I tried to access but it says that it's only available to Harvard folks

What am I missing? Aside from a Harvard ID card

25.01.2025 00:28 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Tissue-resident memory CD8 T cell diversity is spatiotemporally imprinted - Nature Profiling of the location and transcriptome of tissue-resident memory CD8 T cell formation at single-transcript resolution finds regionalized signalling as the basis of immune diversity in t...

On an irrelevant note, congratulations on this terrific paper
www.nature.com/articles/s41...

23.01.2025 00:43 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

This is fascinating!

These are all immune (lymphocyte-relevant) genes!!!!!

23.01.2025 00:39 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Mitochondria is the powerhouse of the cell

Chloroplast is the cell's farm

ER is the factory and ribosomes are the workers

Plasma membrane are the city walls

Cilia and flagella are the stirring wheels and propellers

Exosomes and endosomes are the email/post office

16.01.2025 17:28 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Many thanks for all these terrific insights.

12.01.2025 22:21 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Tcf7 activates genes with CTNNB1 (ฮฒ-catenin)?

What signals are upstream of this? Or are they constitutively active?

12.01.2025 15:13 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Congrats @danmcmanus123.bsky.social

Very nice work!

11.01.2025 02:29 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Unrelated request: Would be nice if someone figured out what maintains Tcf7 expression and activity in CD8 stemlike (ยฑ mem T cells). It was argued in a recent conference that it's Wnt signaling but I can't see how in the absence of Fzd expression in T cells.

10.01.2025 13:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Clones usually encompass cell members with heterogenous cell states, too.

10.01.2025 00:54 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Makes sense. Thanks for clarifying.

10.01.2025 13:40 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Selective expression of the interleukin 7 receptor identifies effector CD8 T cells that give rise to long-lived memory cells - Nature Immunology Nature Immunology - Selective expression of the interleukin 7 receptor identifies effector CD8 T cells that give rise to long-lived memory cells

I think they need Il7r re-expression (and Il2r downregulation)

www.nature.com/articles/ni1...

www.sciencedirect.com/science/arti...

10.01.2025 13:39 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
Replicative history marks transcriptional and functional disparity in the CD8+ T cell memory pool - Nature Immunology Schumacher and colleagues have designed a reporter system that allows in vivo tracking of replicative history over many cell generations. Using this system to study acute T cell responses, they uncove...

1-This paper?
www.nature.com/articles/s41...
Might you elaborate on where they discussed this (PD-1) here?

I recall they assessed "renewal potential" (Tcm-ness based on prior division no. and quiescence state)

2-Looking forward to reading your group's findings. Sounds very interesting.

09.01.2025 21:17 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

They're memory precursors.

When antigen goes away, most clones contract and these cells make up the central memory (Tcm).

In chronic infection, they act as transient amplifiers differentiating into terminal eff and new precursors.

09.01.2025 15:05 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
Statement from PMID: 39708817

Statement from PMID: 39708817

Introduction to PMID: 34822279

Introduction to PMID: 34822279

1-Incredible figure presentation and clarity

2-Eight years of work

3-Favorite statement (reminded me of another statement in an equally authoritative paper). Both are presented in screenshots below.

4-Builds upon earlier work by Peng et al from Jameson group
www.sciencedirect.com/science/arti...

29.12.2024 16:41 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thank you :) for the very kind feedback.

I'm still enjoying it so will keep summarizing/reviewing

All the best with your work + life

22.12.2024 15:25 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Many thanks

19.12.2024 22:12 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Could I ask your take on the data showing "Treg conversion to Tfh"?

What (signals) persuades them?

PMID: 39662506
PMID: 19286559

19.12.2024 21:11 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Unsolicited feedback: This sounds so cool.

Can't wait to read your findings. All the best with this (and everything, but primarily this).

13.12.2024 19:28 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thank you for the delightful feedback. Much appreciated!

09.12.2024 15:54 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thank you for providing the source.

And for sharing these fascinating details about Brenner

09.12.2024 13:38 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Might you share the PMID or book/article title?

For some reason, I tried looking this up and couldn't find it.

Many thanks either way

09.12.2024 03:37 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Looking forward!!!

03.12.2024 22:38 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Congratulations!

Best wishes with equally wonderful papers and discoveries

03.12.2024 20:39 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image

Not useless...Technologies are ephemeral but ideas and insights are not :)

I was reading this Cell issue celebrating Molecular Biology and this comment is along the lines you described. Amazing how long it took to sequence a bit of DNA.

www.cell.com/cell/fulltex...

01.12.2024 19:29 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I remember in a break between sessions of an online conference (2021), two well-known PIs talked about how they used to move tubes between different temperature water baths before thermal cyclers were invented.

I ran a couple of Microarrays in my distant youth and now feel these were dark ages.

01.12.2024 17:19 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

@plasmacellguy is following 20 prominent accounts