Georges Ayoub

ORCID: 0000-0002-1694-6779
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About
Contact & Profiles
Research Areas
  • Glioma Diagnosis and Treatment
  • Cancer Immunotherapy and Biomarkers
  • Brain Metastases and Treatment
  • Cancer Research and Treatments
  • Health Literacy and Information Accessibility
  • Cancer-related Molecular Pathways
  • Groundwater flow and contamination studies
  • Social Media in Health Education
  • Phosphorus and nutrient management
  • Chronic Lymphocytic Leukemia Research
  • Brain Tumor Detection and Classification
  • Misinformation and Its Impacts
  • Soil and Unsaturated Flow
  • HIV-related health complications and treatments
  • HIV Research and Treatment
  • Computational Drug Discovery Methods
  • Genetic Associations and Epidemiology
  • Immunodeficiency and Autoimmune Disorders
  • Bioinformatics and Genomic Networks
  • Landfill Environmental Impact Studies
  • Coagulation and Flocculation Studies
  • Heavy metals in environment
  • Melanoma and MAPK Pathways
  • HIV/AIDS Research and Interventions
  • Genetics, Bioinformatics, and Biomedical Research

Dana-Farber Cancer Institute
2024-2025

Harvard University
2024

Saint Joseph University
2020-2023

Rwanda Meteorological Service
2022

American University of Beirut
1997-2014

American University of Beirut New York Office
2000-2001

10.1016/s1093-0191(02)00009-6 article EN Advances in Environmental Research 2003-01-01

<p>Supplementary Figure 6. Cell-cell interaction analyses. comparison in pre- and post-treatment tumor samples using CODEX for patient #5. (A) All significant interacting cell types shown the entire analyzed region as annotated. (B) Example images of – interactions showing CD163+ macrophages with GZMB+ CD8 T cells, CD4 CD68+ cells. The plus sign indicates that were close proximity at a one-cell distance (20 pixels).</p>

10.1158/1078-0432.28227482 preprint EN cc-by 2025-01-17

<div>AbstractPurpose:<p>Radiotherapy may enhance antitumor immune responses by several mechanisms, including induction of immunogenic cell death. We performed a phase 2 study pembrolizumab with re-irradiation in patients recurrent glioblastoma.</p>Patients and Methods:<p>Sixty glioblastoma received alone (cohort A, bevacizumab-naïve; <i>n</i> = 30) or bevacizumab continuation B, 30). Dual primary endpoints, the overall response rate survival (OS) at either...

10.1158/1078-0432.c.7631024 preprint EN 2025-01-17

<p>Supplementary Figure 1. CODEX panel and experimental procedure. used to identify tumor cell subpopulations, immune populations key cellular markers. (B) Experimental workflow for 5 pre- post-treatment FFPE samples. ROIs were selected multiplexed imaging downstream analysis. (C) U Map clusters show major populations. Immune showed similar clustering in post- treatment samples.</p>

10.1158/1078-0432.28227497 preprint EN cc-by 2025-01-17

<p>Supplementary Figure 5. Cell Density Analyses. Comparison of defined cell populations in pre- and post-treatment tumor specimens via CODEX. (A) Each indicated type is shown as a percentage total cells each post-tumor specimen for all five patients. (B) density T subpopulations preand patient. CD4 are different shades blue; CD8 red. was determined by count per microm2. increased substantially patient #5. (C) changes paired posttreatment samples. Patient #5 highlighted with blue...

10.1158/1078-0432.28227485 preprint EN cc-by 2025-01-17

Foundation models are reshaping computational pathology by enabling transfer learning, where pre-trained on vast datasets can be adapted for downstream diagnostic, prognostic, and therapeutic response tasks. Despite these advances, foundation still limited in their ability to encode the entire gigapixel whole-slide images without additional training often lack complementary multimodal data. Here, we introduce Threads, a slide-level model capable of generating universal representations any...

10.48550/arxiv.2501.16652 preprint EN arXiv (Cornell University) 2025-01-27

Inhibitors of murine double minute homolog 2 (MDM2) represent a promising therapeutic approach for the treatment TP53 wild-type glioblastomas (GBMs), reactivating p53 signaling to induce cancer cell death. We conducted surgical window-of-opportunity trial (NCT03107780) MDM2 inhibitor navtemadlin (KRT-232) in 21 patients with recurrent GBM determine achievable drug concentrations within tumor tissues and biological mechanisms response resistance. Participants received at 120 mg ( n = 10) or...

10.1126/scitranslmed.adn6274 article EN Science Translational Medicine 2025-02-19

The effect of fast mixing on floc formation and pollutant removal, using magnesium hydroxide as a coagulant, was investigated through characterization relative strength size the formed flocs while operating at different speeds times dynamic optical monitoring apparatus, photometric dispersion analyzer (PDA2000). parameters included speed (80, 100, 120 rpm) time (20, 40, 60 s). Highly turbid kaolin clay suspensions (1213 ± 36 NTU) were alkalized sodium (NaOH) to pH values 10.51 0.02...

10.1080/19443994.2014.933043 article EN cc-by-nc-nd Desalination and Water Treatment 2014-07-10

Diseases were initially thought to be the consequence of a single gene mutation. Advances in DNA sequencing tools and our understanding behavior have revealed that complex diseases, such as cancer, are product genes cooperating with each other their environment orchestrated communication networks. Seeing function individual is still used analyze shift using functionally interacting groups new unit study holds promise for demystifying cancer.The literature search focused on three types namely...

10.1080/14737159.2022.2065195 article EN Expert Review of Molecular Diagnostics 2022-04-03

Aim: Chronic lymphocytic leukemia (CLL) is a highly heterogenous hemopathy. Genetic stratification of CLL patients has important prognostic and therapeutic values - mainly immunoglobulin heavy chain variable region gene (IGHV) mutational status the presence cytogenetic abnormalities. The genetics in Lebanon scarcely described literature. Patients & methods: In this work, we studied genetic biomarkers 312 Lebanese patients. Results: Prominent IGHV genes were IGHV4-34, IGHV1-69 IGHV3-30; #1 #5...

10.2217/fon-2023-0535 article EN Future Oncology 2023-09-01

10.1023/a:1005202716880 article EN Water Air & Soil Pollution 2001-01-01

Solar extraction of common salt from seawater has been practiced for centuries in a rather crude manner because the process was not performed stages to obtain pure salt. The practice developing countries is carry through with evaporation stage dryness facilitate harvesting mix. If harvested prior deposition impurities during then resulting bittern would provide chemicals which could have many commercial applications particularly treatment industries. This paper describes an effective...

10.1080/00207230008711318 article EN International Journal of Environmental Studies 2000-12-01

Abstract We investigated the effectiveness of navtemadlin (KRT-232) in treating recurrent glioblastoma. A surgical window-of-opportunity trial ( NCT03107780 ) was conducted on 21 patients to determine achievable drug concentrations within tumor tissue and examine mechanisms response resistance. Both 120 mg 240 daily dosing achieved a pharmacodynamic impact. Sequencing three tumors revealed an absence TP53 -inactivating mutations, indicating alternative In patient-derived GBM models, lower...

10.1101/2024.08.12.24311893 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2024-08-14

Abstract Alterations in Fibroblast growth factor receptor (FGFR)-family proteins frequently occur as oncogenes many cancers, including a subset of pediatric gliomas. Here, we performed genomic analysis 11,635 gliomas across ages and found that 4.5% all harbor FGFR alterations structural variants (SV) single nucleotide (SNV), with an incidence almost 10% family members are differentially enriched by age, tumor grade, histological subtype, FGFR1-alterations associated glioneuronal histologies...

10.1101/2024.08.27.609922 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2024-08-28
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