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VJLabs — Terasaki Institute
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VJLabs at TIBI

Engineering the Future of Precision Medicine

VJLabs at the Terasaki Institute for Biomedical Innovation engineers next-generation organ-on-a-chip platforms and microphysiological systems that recapitulate human organ physiology and disease.

Founded in 2020 by Dr. Vadim Jucaud, a mentee of the late Dr. Paul I. Terasaki, the lab brings together immunology, microfluidics, tissue engineering, biomaterials, and biosensing to build in vitro models that accelerate drug discovery, reduce reliance on animal testing, and advance personalized medicine.

At the heart of VJLabs is our proprietary vascularized Tissueoid technology, which integrates perfusable microvascular networks with three-dimensional tissue constructs to create organ models with unprecedented physiological relevance. This platform serves as the foundation for five interconnected research programs spanning organ-on-a-chip engineering, transplant immunology, cancer biology, biosensing, and biomaterials.

77
Publications
2,420+
Citations
48
Conference Abstracts
28
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Principal Investigator

Dr. Vadim Jucaud

Dr. Vadim Jucaud

Assistant Professor, Terasaki Institute for Biomedical Innovation

Dr. Vadim Jucaud is an Assistant Professor at the Terasaki Institute for Biomedical Innovation and the founder of VJLabs. He holds a Ph.D. in Immunology and Microbiology with specialization in transplant immunology and Human Leukocyte Antigen (HLA) immunobiology.

Dr. Jucaud began his research career in 2010 under the mentorship of Professor Paul I. Terasaki, working in the fields of histocompatibility and immunogenetics with a focus on HLA antibodies and the Humoral Theory of Transplantation. Over 12 years, he developed deep expertise in HLA immunogenetics, antibody cross-reactivity, immunogenic epitope characterization, and T and B cell immunomodulation.

In 2018, he received the American Transplant Congress Young Investigator Award for his work demonstrating the prevalence and impact of de novo donor-specific antibodies during a multicenter immunosuppression withdrawal trial in adult liver transplant recipients.

Motivated by this foundation and the multidisciplinary environment at TIBI, Dr. Jucaud established VJLabs in 2020 to pioneer immunocompetent organ-on-a-chip platforms at the intersection of HLA immunobiology, microfluidics, tissue engineering, biomaterials, and biosensing.

Research Programs

Five Interconnected Research Areas Driving Biomedical Innovation

Our research spans organ-on-a-chip engineering, immunology, biosensing, biomaterials, and cancer biology, all converging on the vascularized Tissueoid platform to create clinically relevant human tissue models.

Technology Platforms

Five Core Technologies Powering VJLabs Research

Each technology addresses a specific barrier in biomedical research. Together, they form an integrated ecosystem for building clinically relevant human tissue models.

The missing vascular layer that makes organ models physiologically relevant

4 organ models 28+ day culture Immune-accessible

What: A proprietary platform that integrates perfusable microvascular networks with 3D tissue constructs, enabling nutrient delivery, immune cell trafficking, and drug transport that mirror in vivo conditions.

Why: Most organ-on-a-chip models lack functional vasculature, limiting their ability to model immune-mediated injury, drug distribution, and long-term tissue viability.

Technical details ▼

Immunocompetent by design: Built on 15+ years of HLA immunobiology expertise, our Tissueoids support controlled exposure to donor-specific antibodies and complement, immune cell trafficking, dendritic cell antigen presentation, T cell activation, immunosenescence modeling, and cytokine profiling.

Organ-specific models: Vascularized liver (regeneration, rejection, hepatotoxicity, embolization), blood-brain barrier (drug permeability, neurotoxicity), lymph node (cancer vaccine screening), and glioblastoma (drug resistance, TME modeling).

Key publications: Adv. Mater. 2026 · Biofabrication 2025 · Lab Chip 2025

Accessible microfluidic infrastructure that brings organ models to any lab

No cleanroom needed Modular design Sensor-ready

What: Microfluidic chip systems that house and perfuse Tissueoid constructs with controlled flow, defined exposure conditions, and integrated electrode/sensor ports.

Why: Most organ-on-a-chip fabrication requires expensive cleanroom infrastructure, limiting adoption. Our scalable thermoplastic approach makes the technology practical for any research setting.

Technical details ▼

Key features: Scalable thermoplastic fabrication, modular chip designs adaptable to multiple organ contexts, integrated electrode and sensor ports, and perfusion systems supporting both short-term experiments and long-term culture (28+ days).

Design philosophy: Accessibility and cost reduction, making organ-on-a-chip technologies practical for broader adoption in academic, pharmaceutical, and regulatory settings.

Key publication: Small 2024

Transforming static tissue models into dynamically monitored living systems

4 sensing modalities Label-free Non-destructive

What: Multiple sensing technologies embedded directly into organ-on-a-chip platforms for continuous, real-time monitoring of cellular responses without disrupting the biology.

Why: Traditional drug screening relies on endpoint assays that miss dynamic cellular responses, contributing to a >90% clinical trial failure rate.

Technical details ▼

PC-TIR optical biosensors: Label-free, real-time monitoring of monoclonal antibody secretion and drug-induced toxicity (with UT San Antonio).

TEER electrodes: Screen-printed electrodes for continuous barrier integrity measurement.

Electrochemical immunosensors: Reusable sensors for on-chip cellular differentiation and biomarker secretion.

Contact lens biosensors: Microfluidic platforms for non-invasive detection of tear exosomes and ocular biomarkers.

Key publications: Biosens. Bioelectron. 2025 · Small 2024

Advanced materials bridging tissue modeling and clinical therapeutics

5+ material systems Clinical trial (DFU) International collaborations

What: Novel biomaterials that enhance organ-on-a-chip physiological relevance and enable standalone clinical applications in wound healing and regenerative medicine.

Why: Faithful replication of native tissue mechanical and biochemical properties is essential for both accurate modeling and direct therapeutic translation.

Technical details ▼

Hydrogel platforms: Deep eutectic solvent-based ionogels with ultrafast gelation; peptide hydrogels with immunomodulatory properties; amyloid-mimicking hydrogels for neuronal studies.

Oxygen-generating biomaterials: Microparticles that downregulate HIF-1α, increase cardiac contractility, and mitigate ischemic injury.

Natural polymer therapeutics: Latex-based dressings loaded with bioactive agents for wound healing, including a pilot clinical trial for diabetic foot ulcers.

Nanofibrous scaffolds: Granular porous microspheres enhancing cellular infiltration for diabetic wound healing.

Key publications: Adv. Funct. Mater. 2023 · Acta Biomater. 2023

Comprehensive molecular characterization of HLA mismatches for transplant prediction

400+ molecular features All existing metrics unified ML-ready output

What: A feature engineering software that generates over 400 molecular features from any donor-recipient HLA mismatch, identifying which properties are associated with antibody development and transplant rejection.

Why: Existing tools assess HLA immunogenicity with single metrics. E3 integrates all available approaches into one unified framework for comprehensive risk assessment.

Technical details ▼

Feature coverage: HLAMatchmaker eplet scores, PIRCHE-II predicted epitopes, electrostatic and hydrophobicity differences, antibody-verified epitopes, plus novel VJLabs-developed features.

Applications: Predicting de novo donor-specific antibody development, identifying high-risk vs. low-risk mismatches at the molecular level, optimizing donor-recipient matching, and supporting ML approaches to immunogenicity assessment.

E3 has been used in multiple published studies and is currently being developed for broader availability.

Key publications: Antibodies 2024 · J Immunol Res 2017