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Hadeesha Piyadasa Profile
Hadeesha Piyadasa

@HadeeshaP

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Postdoc @Bendall_Lab @MikeAngeloLab @Stanford

Palo Alto, CA
Joined March 2014
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@HadeeshaP
Hadeesha Piyadasa
5 months
đź§µ (1/8) Today, @BenOberlton and I are excited to share the preprint of our work on: A comprehensive multi-omic study of human gliomas, spanning diagnosis, treatment, and recurrence. We address the longstanding challenge of developing effective therapies for gliomas, which have
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@HadeeshaP
Hadeesha Piyadasa
5 months
(8/8) All this work would not have been possible without all the amazing people at @Bendall_Lab and @MikeAngeloLab and our collaborators. Mikaela Ribi, Ke Leow @JoleneRanek @Inna_Averbukh @meeladamouzgar @CandaceCLiu @NoahGreenwald Erin McCaffrey @rashmikumar559 Albert Tsai.
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@HadeeshaP
Hadeesha Piyadasa
5 months
(7/8) Open source spatial multi-omics of human gliomas: We have made everything in this study freely available through the BRUCE data portal–a user-friendly web resource for quantitative analysis and.visual data exploration of all extracted features and multiparameter imaging.
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@HadeeshaP
Hadeesha Piyadasa
5 months
(6/8) GBM survival is correlated with TME immune response: Using random forest classifiers that integrated all three modalities, we found TME glycans were the most significant spatial class for distinguishing tumor grade, while immune transcriptional pathways were the most
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@HadeeshaP
Hadeesha Piyadasa
5 months
(5/8) TME N-glycosylation robustly encodes tumor grade: We carried out the first cohort-level spatial analysis of the tumor N-glycome to understand how this ubiquitous post-translational modification is involved in glioma pathology. We found TME glycan composition to tightly
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@HadeeshaP
Hadeesha Piyadasa
5 months
(4/8) Tumor microenvironment (TME) structure encodes recurrence and therapeutic response: In previous work, we showed that TME spatial organization predicts clinical outcomes in breast cancer. Here, we found similar TME shifts between primary and recurrent gliomas, reflecting
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@HadeeshaP
Hadeesha Piyadasa
5 months
(3/8) A clinical normogram for drug targetable tumor antigens: We conducted the first quantitative coexpression analysis of tumor antigens (TA) in gliomas, revealing that most tumors have <50% TA-positive cells, potentially explaining inconsistent therapy outcomes. However,
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@HadeeshaP
Hadeesha Piyadasa
5 months
(2/8) Despite major efforts, key gaps remain in our.understanding of targetable antigens, the impact of checkpoint blockade on tumor-immune dynamics, and.how glycosylation shapes disease progression. In a multicenter collaboration between @Stanford, @UCLA, @UCSF, @ChildrensPhila
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@HadeeshaP
Hadeesha Piyadasa
5 months
RT @JoleneRanek: Super excited to introduce QUICHE (Quantitative InterCellular Niche Enrichment) - a statistical method that can be used to….
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@HadeeshaP
Hadeesha Piyadasa
5 months
RT @NoahGreenwald: I’m super excited to share what I’ve been working on for the last (many) years: a spatial + genomic + transcriptomic cha….
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biorxiv.org
Immune checkpoint inhibition (ICI) has fundamentally changed cancer treatment. However, only a minority of patients with metastatic triple negative breast cancer (TNBC) benefit from ICI, and the...
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@HadeeshaP
Hadeesha Piyadasa
2 years
RT @MikeAngeloLab: Save the Date! Please join us in August for our 2nd Annual Spatial Biology Workshop! @_hubmap @ncihtan #spatialbiology….
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@HadeeshaP
Hadeesha Piyadasa
2 years
RT @Dunja_Mrdjen: Thrilled to share the preprint from my postdoc work in the @Bendall_Lab with @MikeAngeloLab and Thomas Montine at @Stanfo….
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@HadeeshaP
Hadeesha Piyadasa
2 years
RT @SpaceX: Watch Starship’s first integrated flight test →
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@HadeeshaP
Hadeesha Piyadasa
3 years
RT @NoahGreenwald: Excited to announce our first ever MIBI workshop! We'll be talking about the new tools our lab has developed for generat….
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@HadeeshaP
Hadeesha Piyadasa
3 years
🔥.
@BryJCannon
Bryan Cannon
3 years
Today I and @kausaliavbosse are thrilled to announce our @Bendall_Lab preprint profiling spatial proteomic imaging of single-cells and proteopathy in human neuropathology! #MIBI #NeuroTwitter #systemsbio.(1/13).
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@HadeeshaP
Hadeesha Piyadasa
4 years
RT @CandaceCLiu: Excited to share our new review about all things MIBI, out in @AnnualReviews! As multiplexed imaging technology has advanc….
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@HadeeshaP
Hadeesha Piyadasa
4 years
RT @TyRisom: Out today on the cover of @Cellcellpress! We created the first high-dimensional spatial atlas of breast cancer progression to….
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