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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
h-index
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.

Live/Dead
Live/dead staining
Dextran
Dextran perfusion
Liver
Liver-on-a-chip
Day 28
Liver chip day 28

The missing vascular layer that makes organ models physiologically relevant

4 organ models28+ day cultureImmune-accessible

What: A proprietary platform integrating 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. Supports donor-specific antibody exposure, immune cell trafficking, DC 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), glioblastoma (drug resistance, TME modeling).

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

BBB
BBB chip architecture
LNoC
Lymph node-on-a-chip
Electrode
Integrated electrode
vLoC
Microvascular bed
DC
Dendritic cells
T cells
T cell activation
Glut1
Glut1 in BBB
ZO-1
ZO-1 tight junctions

Accessible microfluidic infrastructure that brings organ models to any lab

No cleanroom neededModular designSensor-ready

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

Why: Most OoC fabrication requires expensive cleanroom infrastructure. Our scalable thermoplastic approach makes the technology practical for any research setting.

Technical details ▼

Key features: Scalable thermoplastic fabrication, modular chip designs, integrated electrode and sensor ports, and perfusion systems supporting 28+ day culture.

Key publication: Small 2024

Biosensors
Biosensing platform
OoC sensors
Sensors in OoC devices

Transforming static tissue models into dynamically monitored living systems

4 sensing modalitiesLabel-freeNon-destructive

What: Multiple sensing technologies embedded directly into OoC platforms for continuous, real-time monitoring 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 monitoring of antibody secretion and toxicity (with UT San Antonio).

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

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

Contact lens biosensors: Microfluidic platforms for non-invasive tear exosome detection.

Key publications: Biosens. Bioelectron. 2025 · Small 2024

Biomaterials
Biomaterials overview
Ionogel
DES-based ionogel
O2
O2-generating microparticles

Advanced materials bridging tissue modeling and clinical therapeutics

5+ material systemsClinical trial (DFU)International collaborations

What: Novel biomaterials enhancing OoC physiological relevance and enabling standalone clinical applications in wound healing and regenerative medicine.

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

Technical details ▼

Hydrogel platforms: DES-based ionogels; peptide hydrogels; amyloid-mimicking hydrogels for neuronal studies.

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

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

Nanofibrous scaffolds: Granular porous microspheres for diabetic wound healing.

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

SAB
HLA single antigen bead assay
Allo
T cell epitope analysis
Epitope
Antibody epitope mapping
Transplant
Allo-recognition pathways

Comprehensive molecular characterization of HLA mismatches for transplant prediction

400+ molecular featuresAll metrics unifiedML-ready output

What: Feature engineering software generating 400+ molecular features from any donor-recipient HLA mismatch, identifying properties associated with antibody development and rejection.

Why: Existing tools assess HLA immunogenicity with single metrics. E3 integrates all approaches into one unified framework.

Technical details ▼

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

Applications: Predicting de novo DSA development, identifying high-risk mismatches, optimizing donor-recipient matching, and supporting ML approaches to immunogenicity.

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

Key publications: Antibodies 2024 · J Immunol Res 2017