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Amir Toor

@aat2357.bsky.social
198 followers 358 following 97 posts

Stem cell transplant physician; apply mathematics to immunology; Professor UTSW

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Amir Toor @aat2357.bsky.social · 30/09/2026
www.medrxiv.org/content/10.6...
medrxiv.org
Spectral Analysis of the T Cell Repertoire Recovery Following Allogeneic Stem Cell Transplantation
The human T cell repertoire is generated through recombination of a multitude of T cell receptor gene segments, yielding a complex array of T cell clones. T cell receptor beta (TRB) V gene segment def...
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Amir Toor @aat2357.bsky.social · 09/09/2026
www.science.org/doi/10.1126/...
science.org
Uneven TCR chain pairing constraints govern epitope recognition
Combinatorial pairing of independently recombined T cell receptor (TCR) α- and β-chains is central to diversifying the TCR repertoire. Although sequence motifs in one chain correlate with epitope reco...
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Amir Toor @aat2357.bsky.social · 02/08/2026
Teclistamab in Multiple Myeloma with One to Three Previous Lines of Therapy | New England Journal of Medicine www.nejm.org/doi/full/10....
nejm.org
Teclistamab in Multiple Myeloma with One to Three Previous Lines of Therapy | NEJM
The efficacy of teclistamab, a bispecific antibody targeting B-cell maturation antigen and CD3, as early-line monotherapy in relapsed or refractory multiple myeloma is unclear. We randomly assigned...
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Amir Toor @aat2357.bsky.social · 05/06/2026
www.bbc.com/news/article...
bbc.com
Mangrove forests are healing after decades of human destruction
Swampy mangrove forests are staging a surprise comeback - which is good news for coastal communities and the climate.
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Amir Toor @aat2357.bsky.social · 28/03/2026
Turning up the temperature on the world’s hottest forests | Science | AAAS www.science.org/content/arti...
science.org
Turning up the temperature on the world’s hottest forests
Innovative experiments are revealing how plants in the tropics can cope with heat
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Amir Toor @aat2357.bsky.social · 31/12/2025
www.nature.com/articles/s41...
nature.com
An integrated view of the structure and function of the human 4D nucleome - Nature
The 4D Nucleome Project demonstrates the use of genomic assays and computational methods to measure genome folding and then predict genomic structure from DNA sequence, facilitatin...
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Amir Toor @aat2357.bsky.social · 31/12/2025
www.nature.com/articles/s41...
nature.com
Fasting boosts breast cancer therapy efficacy via glucocorticoid activation - Nature
Beneficial effects of fasting combined with endocrine therapy for oestrogen receptor-α-expressing breast cancers can be recapitulated using exogenous glucocorticoid receptor ligands instead of fasting...
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Amir Toor @aat2357.bsky.social · 13/12/2025
www.science.org/doi/10.1126/...
science.org
Inhibition of CXCL10 and IFN-γ ameliorates myocarditis in preclinical models of SARS-CoV-2 mRNA vaccination
Preclinical models of SARS-CoV-2 vaccination revealed a targetable CXCL10–IFN-γ axis that drives cytokine-induced cardiac injury.
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Amir Toor @aat2357.bsky.social · 09/12/2025
www.bbc.com/news/article...
bbc.com
Blood cancer therapy reverses incurable leukaemia in some patients
Seven out of 11 patients with incurable cancer who had the treatment appear to be cancer-free.
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Reposted by Amir Toor
Myeloma Patients Europe @myelomaeurope.bsky.social · 06/12/2025
Juan Du MD presenting interesting results on AZD0120 dual targeting (BCMA/CD19) CAR-T using FasTCAR manufacturing. #myeloma #CAR-T
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Amir Toor @aat2357.bsky.social · 04/12/2025
www.bbc.com/audio/play/p...
bbc.com
BBC Audio | In Our Time | Pauli's Exclusion Principle (Archive Episode)
Melvyn Bragg and guests discuss Wolfgang Pauli and the Pauli Exclusion Principle.
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Amir Toor @aat2357.bsky.social · 15/11/2025
www.nature.com/articles/s41...
nature.com
Multi-omics analysis of a pig-to-human decedent kidney xenotransplant - Nature
Nature - Multi-omics analysis of a pig-to-human decedent kidney xenotransplant
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Amir Toor @aat2357.bsky.social · 15/11/2025
www.nature.com/articles/s41...
nature.com
Physiology and immunology of pig-to-human decedent kidney xenotransplant - Nature
Nature - Physiology and immunology of pig-to-human decedent kidney xenotransplant
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Amir Toor @aat2357.bsky.social · 13/11/2025
www.medrxiv.org/content/10.1...
medrxiv.org
T cell tolerant fraction as a predictor of graft-vs-host disease following allogeneic hematopoietic cell transplantation
Background Donor T cell reconstitution following allogeneic hematopoietic cell transplantation (HCT) is crucial for protective immunity against infections and cancer relapse. However, its use remains ...
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Amir Toor @aat2357.bsky.social · 08/11/2025
www.science.org/doi/10.1126/...
science.org
B cells targeting parasites capture spatially linked antigens to secure T cell help
Antigen location orchestrates T cell–B cell collaboration in response to large pathogens.
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Amir Toor @aat2357.bsky.social · 04/11/2025
www.science.org/doi/10.1126/...
science.org
Stem-like tissue-resident memory T cells control functional heterogeneity and reactivation of T cell memory in the intestine
Tissue-resident memory T cells that express TCF1 or ID3 exhibit stem-like properties and regulate memory heterogeneity and recall.
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Amir Toor @aat2357.bsky.social · 01/11/2025
Tumor Lysis Syndrome | New England Journal of Medicine www.nejm.org/doi/full/10....
nejm.org
Tumor Lysis Syndrome | NEJM
Tumor lysis syndrome has evolved and become less predictable with the introduction of new cancer therapies. This review explores risk factors and causes of the syndrome, as well as strategies for t...
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Amir Toor @aat2357.bsky.social · 01/11/2025
The IL-33 and IL-4Rα blocking antibodies itepekimab and dupilumab modulate both distinct and common inflammatory mediators in asthma | Science Translational Medicine www.science.org/doi/10.1126/...
science.org
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Amir Toor @aat2357.bsky.social · 01/11/2025
Stem-like tissue-resident memory T cells control functional heterogeneity and reactivation of T cell memory in the intestine | Science Immunology www.science.org/doi/10.1126/...
science.org
Stem-like tissue-resident memory T cells control functional heterogeneity and reactivation of T cell memory in the intestine
Tissue-resident memory T cells that express TCF1 or ID3 exhibit stem-like properties and regulate memory heterogeneity and recall.
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Amir Toor @aat2357.bsky.social · 23/10/2025
www.nature.com/articles/d41...
nature.com
Tumours might be sensitized to immune therapy by COVID mRNA vaccines
COVID vaccines enhance the antitumour response of immunotherapies and result in increased patient survival.
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Amir Toor @aat2357.bsky.social · 23/10/2025
www.nature.com/articles/d41...
nature.com
People with some cancers live longer after a COVID vaccine
mRNA vaccines seem to boost the effectiveness of an immune therapy for skin and lung cancer ― in an unexpected way.
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Amir Toor @aat2357.bsky.social · 11/10/2025
www.science.org/doi/10.1126/...
science.org
Germinal center–mediated broadening of B cell responses to SARS-CoV-2 booster immunization
SARS-CoV-2 variant booster vaccination broadens human B cell responses through the germinal center reaction.
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Amir Toor @aat2357.bsky.social · 07/10/2025
www.nobelprize.org/prizes/physi...
nobelprize.org
Nobel Prize in Physics 2025
The Nobel Prize in Physics 2025 was awarded to John Clarke, Michel H. Devoret and John M. Martinis “for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electri...
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Amir Toor @aat2357.bsky.social · 07/10/2025
www.science.org/content/arti...
science.org
New radioactive isotope therapies promise more targeted attacks on cancer
Recent clinical successes, and profits, have prompted a rush among pharma companies to try new isotopes and targeting strategies
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Amir Toor @aat2357.bsky.social · 07/10/2025
www.science.org/doi/10.1126/...
science.org
The immunology of brain tumors
The cellular and molecular determinants of the antigenicity of brain tumors and the immunosuppressive brain tumor microenvironment are reviewed.
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Amir Toor @aat2357.bsky.social · 28/09/2025
www.science.org/doi/10.1126/...
science.org
Adenosine 2A receptor–dependent activation of AMPK represses TH17 cell pathogenicity through epigenetic and metabolic reprogramming
Epigenetic reprogramming that promotes oxidative metabolism suppresses TH17 cell pathogenicity.
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Amir Toor @aat2357.bsky.social · 28/09/2025
www.science.org/doi/10.1126/...
science.org
Design of a potent interleukin-21 mimic for cancer immunotherapy
A de novo IL-21 mimic, 21h10, exhibits improved stability and potent antitumor activity in vivo compared with native IL-21.
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Reposted by Amir Toor
Blood Journals Portfolio @bloodjournals.hematology.org · 08/09/2025
T-cell lymphopenia characterizes immunodeficiency in a broad spectrum of TBDs. buff.ly/6B7IlyR #hemesky
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Amir Toor @aat2357.bsky.social · 22/09/2025
www.bbc.com/news/article...
bbc.com
Newcastle University hopes to improve sepsis treatment nationwide
Sepsis is treated by antibiotics but using the medication too much can lead to deadly superbugs.
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Amir Toor @aat2357.bsky.social · 17/09/2025
www.science.org/doi/10.1126/...
science.org
Interleukins 15 and 18 synergistically prime the antitumor function of natural killer cells through noncanonical activation of mTORC1
mTORC1 activation by components of a cytokine cocktail enhances NK cell cytotoxicity toward cancer cells.
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Amir Toor @aat2357.bsky.social · 17/09/2025
www.science.org/doi/10.1126/...
science.org
Single-cell multiomics identifies Tcf1 and Lef1 as key initiators of early thymic progenitor fate
Tcf1 and Lef1 prime prethymic progenitors for Notch responsiveness, promoting early thymic progenitor fate and lineage stability.
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Amir Toor @aat2357.bsky.social · 14/09/2025
www.science.org/doi/10.1126/...
science.org
Single-cell multiomics identifies Tcf1 and Lef1 as key initiators of early thymic progenitor fate
Tcf1 and Lef1 prime prethymic progenitors for Notch responsiveness, promoting early thymic progenitor fate and lineage stability.
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Amir Toor @aat2357.bsky.social · 10/09/2025
www.science.org/doi/10.1126/...
science.org
Enkephalin-producing regulatory T cells in the skin restrain local inflammation through control of nociception
Regulatory T cells curb noxious sensory signaling to dampen cutaneous inflammation, a neuromodulatory mechanism for immunosuppression.
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Amir Toor @aat2357.bsky.social · 07/09/2025
www.nature.com/articles/d41...
nature.com
Depriving brain tumours of an amino acid could enhance chemotherapy
Glioblastoma, an aggressive brain cancer, depends on the amino acid serine as a fuel source. A serine-deficient diet has been shown to slow tumour growth in mice.
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Amir Toor @aat2357.bsky.social · 07/09/2025
www.nature.com/articles/d41...
nature.com
Newfound immune cell in mice hints at why inflammation spikes with old age
Pathogen-consuming cells found in fat tissue also play a part in lipid balance.
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Reposted by Amir Toor
Science Magazine @science.org · 07/09/2025
New research offers a glimpse of how RNA might have helped form the first simple proteins—an event that could have set the stage for evolution. scim.ag/466Rkz0
scim.ag
Here’s how the first proteins might have assembled, sparking life
RNA could have helped amino acids join up without preexisting protein machinery, lab study suggests
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Amir Toor @aat2357.bsky.social · 07/09/2025
www.nature.com/articles/d41...
nature.com
Hope for diabetes: CRISPR-edited cells pump out insulin in a person – and evade immune detection
Edits create cells that don’t trigger an immune response, allowing implant recipient to forego immune-suppressing drugs.
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Reposted by Amir Toor
Sean Carroll @seanmcarroll.bsky.social · 25/08/2025
First day of classes at @jhuartssciences.bsky.social. A glorious day to learn #QuantumMechanics! I'm teaching two courses - QM for physics majors, and Philosophy of Cosmology for a general audience. I'm going to try to maintain a thread saying what happens in each class, let's see how I do.
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Amir Toor @aat2357.bsky.social · 01/09/2025
Targeted Therapy of CAR+ T-Cell Lymphoma after Anti-BCMA CAR T-Cell Therapy | New England Journal of Medicine www.nejm.org/doi/full/10....
nejm.org
Targeted Therapy of CAR+ T-Cell Lymphoma after Anti-BCMA CAR T-Cell Therapy | NEJM
A rare T-cell lymphoma after chimeric antigen receptor (CAR) T-cell therapy for myeloma was linked to CCR4 overexpression and vector integration, which highlights the need for monitoring after CAR ...
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Amir Toor @aat2357.bsky.social · 01/09/2025
www.science.org/doi/10.1126/...
science.org
Mapping early human blood cell differentiation using single-cell proteomics and transcriptomics
Single-cell transcriptomics (scRNA-seq) has facilitated the characterization of cell state heterogeneity and recapitulation of differentiation trajectories. However, the exclusive use of mRNA measurem...
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Amir Toor @aat2357.bsky.social · 29/08/2025
www.science.org/doi/10.1126/...
science.org
Reprogramming intratumoral Treg cells by morpholino-mediated splicing of FOXP3 for cancer immunotherapy
Treg cells expressing a short FOXP3 isoform exhibit a TH-like cell phenotype with reduced suppressive function and mediate antitumor immunity.
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Amir Toor @aat2357.bsky.social · 22/08/2025
www.nejm.org/doi/full/10....
nejm.org
Overall Survival with Neoadjuvant Nivolumab plus Chemotherapy in Lung Cancer | NEJM
Neoadjuvant nivolumab plus chemotherapy significantly improved pathological complete response and event-free survival in patients with resectable non–small-cell lung cancer (NSCLC) in a phase 3 tri...
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Amir Toor @aat2357.bsky.social · 28/07/2025
www.sciencedirect.com/science/arti... Telomere length attrition possibly linked to alloreactivity following allogeneic HCT
sciencedirect.com
Understanding Telomere Biology in Hematopoietic Cell Transplantation: A Dynamical Systems Perspective
T cell proliferation and repertoire reconstitution is a hallmark of successful hematopoietic cell transplantation (HCT). This process may be modeled a…
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Amir Toor @aat2357.bsky.social · 05/07/2025
www.dawn.com/news/1922222
dawn.com
Dangerous ‘new normal’
History is testimony to the fallacy that the use of force can bring peace and security.
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Amir Toor @aat2357.bsky.social · 03/07/2025
www.bbc.com/reel/video/p...
bbc.com
The butterfly effect: What is chaos theory?
The world was explained through the laws of physics until a meteorologist saw the pattern of chaos.
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Amir Toor @aat2357.bsky.social · 03/07/2025
www.bbc.com/reel/video/p...
bbc.com
What's inside a black hole?
Black holes are one of the mysteries of the universe where all the laws of nature as we know them stop working.
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Amir Toor @aat2357.bsky.social · 28/06/2025
www.bbc.co.uk/news/resourc...
bbc.co.uk
Beneath the canopy: Pioneering satellite reveals rainforests' hidden worlds - BBC News
First groundbreaking images from the Biomass satellite could change our understanding of rainforests
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Amir Toor @aat2357.bsky.social · 10/06/2025
www.science.org/doi/10.1126/...
science.org
An Il12 mRNA-LNP adjuvant enhances mRNA vaccine–induced CD8 T cell responses
IL-12 is dispensable for CD8 T cell responses to mRNA vaccination, but an Il12 mRNA-LNP enhances CD8 T cell memory and protection.
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Reposted by Amir Toor
Shicheng Guo @shihcheng.bsky.social · 07/06/2025
Pharmacological inhibition of PSPH reduces serine levels, alleviating epileptic seizures in temporal lobe epilepsy (TLE) models. PMID:40456963, Nat Chem Biol 2025, @nchembio doi.org/10.1038/s41589-025-01920-5 #Medsky #Pharmsky #RNA #ASHG #ESHG 🧪
doi.org
Pharmacological inhibition of PSPH reduces serine levels and epileptic seizures | Nature Chemical Biology
Temporal lobe epilepsy (TLE) is the most common type of drug-resistant epilepsy. Lowering the levels of N-methyl-d-aspartate receptor (NMDAR) ligands has been suggested as a promising therapeutic strategy for TLE. d-Serine gates synaptic NMDARs in the hippocampus but the effect of d-serine on seizure activity remains poorly understood. Here, we show that serine levels in the hippocampus were increased in persons with TLE and in a mouse model of TLE. Eliminating d-serine or blocking its binding with NMDARs suppressed seizures in mouse models. Astrocyte-derived l-serine was found to regulate interstitial d-serine levels and seizure activity through a process controlled by phosphoserine phosphatase (PSPH). We identified a potent PSPH inhibitor, Z218484536, and found that its systemic administration reduced spontaneous epileptic discharges in mouse and cynomolgus monkey models of TLE. Overall, these results indicate that PSPH is a promising therapeutic target for TLE and support further pr
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Reposted by Amir Toor
Elham Azizi @elhamazizi.bsky.social · 29/05/2025
Thrilled to share our latest work led by brilliant @lingting-shi.bsky.social with Ajna, Kevin, Ran Reshef lab tinyurl.com/594nru9b A spatiotemporal atlas of human alloreactive T cells during #GVHD + new 💻 tools revealed T cell clones shift phenotype as they migrate in tissue contributing to injury!
tinyurl.com
Spatiotemporal Single-Cell Analysis Reveals T Cell Clonal Dynamics and Phenotypic Plasticity in Human Graft-versus-Host Disease
Allogeneic hematopoietic cell transplantation (alloHCT) is curative for various hematologic diseases but often leads to acute graft-versus-host disease (GVHD), a potentially life-threatening complicat...
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