Erick R. Castellanos

ORCID: 0000-0003-1832-5957
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About
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Research Areas
  • Ubiquitin and proteasome pathways
  • Immunotherapy and Immune Responses
  • Glycosylation and Glycoproteins Research
  • RNA Interference and Gene Delivery
  • interferon and immune responses
  • IL-33, ST2, and ILC Pathways
  • Protein Degradation and Inhibitors
  • Eosinophilic Esophagitis
  • Bacteriophages and microbial interactions
  • Bacterial biofilms and quorum sensing
  • Toxoplasma gondii Research Studies
  • Phagocytosis and Immune Regulation
  • Antibiotic Resistance in Bacteria
  • Asthma and respiratory diseases

Pseudomonas aeruginosa causes life-threatening infections that are associated with antibiotic failure. Previously, we identified the G2637, an analog of arylomycin, targeting bacterial type I signal peptidase, which has moderate potency against P. aeruginosa. We hypothesized antibody-antibiotic conjugate (AAC) could increase its activity by colocalizing bacteria high local concentrations G2637 in intracellular environment phagocytes. Using a novel technology screening for hybridomas...

10.1128/mbio.00202-21 article EN mBio 2021-06-11

Eosinophilic inflammation and Th2 cytokine production are central to the pathogenesis of asthma. Agents that target either eosinophils or single cytokines have shown benefits in subsets biomarker-positive patients. More broadly effective treatment disease-modifying effects may be achieved by eliminating more than one inflammatory stimulator. Here we present a strategy concomitantly deplete T cells, eosinophils, basophils, type-2 innate lymphoid cells (ILC2s) generating monoclonal antibodies...

10.1172/jci.insight.86689 article EN JCI Insight 2016-05-18

Ubiquitination is a posttranslational modification that crucial for the dynamic regulation of diverse signaling pathways. To enhance our understanding ubiquitination-mediated signaling, we generated new class bispecific antibodies combine recognition ubiquitination substrates and specific polyubiquitin linkages. RIP1-K63 RIP1–linear (Lin) linkage detected linkage-specific proinflammatory kinase RIP1 in cells tissues revealed by immunofluorescence. Similarly, RIP1-related RIP2 with K63 or...

10.1126/scisignal.abn1101 article EN Science Signaling 2024-01-16
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