Vadim Jucaud Laboratory

Immunofluorescence of a perfusable microvascular network in a vascularized Tissueoid

Human tissue models with a living vasculature.

VJLabs builds vascularized Tissueoids: perfusable, immune-competent human tissue models on a chip, used to study transplant rejection, cancer, and drug response without an animal in the loop.

What a Tissueoid is

Most organ chips have no blood supply. That is the part we build.

A Tissueoid is a three-dimensional human tissue construct grown around a living, perfusable microvascular network. Because the vessels are real and open, nutrients, drugs, antibodies, and immune cells reach the tissue the way they do in a patient. That single difference is what lets these models sustain perfused culture past seven weeks, take a dose of donor-specific antibody, and report what happens.

Liver Heart wall Lymph node Blood-brain barrier Glioblastoma Adipose

Specimen plates

P.01Live/dead staining, day 28
Live/dead staining, day 28
P.02Dextran perfusion assay
Dextran perfusion assay
P.03Liver Tissueoid-on-a-chip
Liver Tissueoid-on-a-chip
P.04Dendritic cells, lymph node chip
Dendritic cells, lymph node chip
P.05ZO-1 tight junctions, BBB chip
ZO-1 tight junctions, BBB chip
P.06Glut1 expression, BBB chip
Glut1 expression, BBB chip
4Vascularized organ models
49+Days of perfused culture
79Publications
2,875+Citations
VJLabs · Terasaki Institute for Biomedical Innovation · Woodland Hills, CA

Research programs

Five programs, one vasculature

Each program exists because a specific question could not be answered in a dish or in an animal. They share the same vascularized foundation, which is why immunology, biosensing, and materials work feed directly into one another here.

Liver Tissueoid-on-a-chip
Liver Tissueoid-on-a-chip
Liver chip at day 28
Day 28 of perfusion

Program 01

Organ-on-a-chip and microphysiological systems

The central pillar. We engineer vascularized, perfusable organ models, liver, blood-brain barrier, lymph node, and glioblastoma, that hold together long enough to run a real experiment on.

Why it matters
Conventional models lack vasculature, immune competence, and real-time readouts, which is most of why they fail to predict what a drug does in a person.
How
Scalable thermoplastic fabrication, modular chip architectures, and manufacturing designed for academic, pharmaceutical, and regulatory adoption rather than for a cleanroom.

Platform

Vascularized Tissueoids and the chips that hold them

Perfusable microvascular networks integrated with 3D tissue, so nutrients, drugs, and immune cells move through the construct instead of diffusing into it. The chips themselves are scalable thermoplastic parts with sensor and electrode ports, which is what makes the platform usable by labs without cleanroom access.

4 organ models49+ day cultureNo cleanroom neededSensor-ready
Antibody epitope mapping
Epitope mapping
HLA single antigen bead assay
Single antigen bead assay

Program 02

Transplant immunology and HLA immunobiology

We map how donor-specific HLA antibodies decide the fate of a graft: which mismatches provoke them, which epitopes they see, and what they do to tissue once they arrive.

Why it matters
Antibody-mediated rejection remains the leading cause of long-term graft loss, and predicting which mismatches trigger it is still unsolved.
How
Antibody characterization and epitope mapping, computational donor-recipient matching through the E3 feature software, then rejection replayed on an immunocompetent chip.

Platform

E3, HLA feature engineering software

E3 generates more than 400 molecular features from any donor-recipient HLA mismatch, unifying eplet scores, predicted epitopes, electrostatic and hydrophobicity differences, and antibody-verified epitopes in one framework. Existing tools score immunogenicity with a single metric; E3 exists because a single metric keeps being wrong.

400+ featuresML-readyAntibodies 2024
Lymph node-on-a-chip
Lymph node-on-a-chip
T cell activation on chip
T cell activation

Program 03

Cancer biology and immunotherapy

Engineered tissue models for cancer vaccine screening, drug resistance, and embolic agent testing, including immune systems that have aged.

Why it matters
Preclinical models rarely capture human immune complexity, least of all in elderly patients, who carry the highest cancer burden and are routinely left out of testing.
How
Lymph node-on-a-chip for vaccine efficacy, glioblastoma-on-a-chip for pericyte-mediated temozolomide resistance, and a vascularized liver tumor model for embolic agents.

Platform

Three cancer platforms on the same vascular base

Lymph node-on-a-chip for vaccine efficacy including aged immune systems, glioblastoma-on-a-chip for pericyte-mediated temozolomide resistance, and a vascularized liver tumor model for embolic agents. All three inherit the perfusable vasculature and immune access of the Tissueoid platform.

3 cancer platformsImmunosenescenceAntigen presentation
Integrated biosensing platform
Biosensing platform
Integrated electrode in a chip
Integrated electrode

Program 04

Biosensors and real-time monitoring

Label-free sensing built into the chip itself, so a tissue can be watched continuously instead of being sacrificed for an endpoint.

Why it matters
Endpoint assays miss the dynamics, and the dynamics are usually where the toxicity signal lives.
How
PC-TIR optical biosensors for antibody secretion and toxicity, screen-printed TEER electrodes for barrier integrity, and reusable electrochemical immunosensors.

Platform

Integrated biosensing

Four sensing modalities embedded in the chip: PC-TIR optical biosensors for antibody secretion and toxicity, screen-printed TEER electrodes for barrier integrity, reusable electrochemical immunosensors, and microfluidic contact-lens sensors for tear biomarkers.

4 modalitiesLabel-freeNon-destructive
Deep eutectic solvent ionogel
DES-based ionogel
Oxygen-generating microparticles
O₂-generating microparticles

Program 05

Biomaterials and tissue engineering

Materials that make the models more faithful, and that occasionally leave the chip entirely and become a treatment.

Why it matters
Matching the mechanics and chemistry of native tissue is a prerequisite for both accurate modeling and direct therapeutic use.
How
Ionogels and peptide hydrogels, oxygen-generating microparticles that downregulate HIF-1α, and natural latex dressings taken as far as a pilot trial in diabetic foot ulcers.

Platform

Engineered materials

Hydrogels and particles that either raise the fidelity of a model or leave the chip and become a therapeutic: DES-based ionogels, peptide and amyloid-mimicking hydrogels, oxygen-generating microparticles that downregulate HIF-1α, and latex-based wound dressings.

5+ material systemsClinical pilotActa Biomater. 2023
VJLabs · Terasaki Institute for Biomedical Innovation · Woodland Hills, CA

Publication record

Research output

54Research papers
25Review articles
48Conference abstracts
2,875+Citations
32h-index

Selected work

High-impact and recent papers

  • 2026 · Nature Communications NewZhou K, Kim M, Liu CW, Harbell JW, Mathur AK, Nateras RN, Jucaud V, Dokmeci MR, Shen X, Aqel BA, Wang J, Nguyen MC, Zhu Y. A clinically deployed dual-compartment biochemical monitoring platform for human liver perfusion. doi: 10.1038/s41467-026-74799-y.
  • 2026 · Chemical Engineering JournalCabral TO, Ebrahimi A, Bagheri A, Khorsandi D, Dokmeci MR, Jucaud V, Pourkargar DB. A digital twin framework for predictive modeling of liver-on-a-chip system dynamics using limited experimental data. doi: 10.1016/j.cej.2026.177046.
  • 2026 · Advanced MaterialsSalih ARC, Peirsman A, Khorsandi D, Ferrao R, Ferreira L, Kamaraj M, John JV, Baquerizo A, Jucaud V. Liver Tissueoid on-a-Chip Modeling Liver Regeneration and Allograft Rejection.
  • 2025 · ACS SensorsTang RC, et al. Rapid Point-of-Care Inflammatory Cytokine Monitoring during Normothermic Liver Perfusion via a Multiplexed Paper-Based Vertical Flow Assay.
  • 2025 · Lab on a ChipMaity S, Hassani Najafabadi A, et al. Lymph node paracortex-inspired on-a-chip recapitulating immunosenescence.
  • 2025 · Biosensors and BioelectronicsKhorsandi D, Yang JW, et al. Real-Time and Label-Free Monitoring of Monoclonal Antibody Secretion Rates Using a PC-TIR Biosensor.
  • 2025 · BiofabricationNguyen HT, et al. Embolization-on-a-chip: Novel Vascularized Liver Tumor Model for Evaluation of Cellular and Cytokine Response to Embolic Agents.
  • 2025 · Acta BiomaterialiaMaity S, Jewell C, et al. Deciphering pericyte-induced temozolomide resistance in glioblastoma with a 3D microphysiological system.
  • 2024 · SmallYang JW, Khorsandi D, et al. Liver-on-a-Chip Integrated with Label-Free Optical Biosensors for Rapid and Continuous Monitoring of Drug-Induced Toxicity.
  • 2020 · Scientific ReportsKawakita S, Beaumont JL, Jucaud V, Everly MJ. Personalized prediction of delayed graft function for recipients of deceased donor kidney transplants.
  • 2019 · HepatologyJucaud V, Shaked A, et al. Prevalence and Impact of De Novo Donor-Specific Antibodies During a Multicenter Immunosuppression Withdrawal Trial.

Full record

Every paper, review, and abstract

  • 2026 Zhou K, Kim M, Liu CW, Harbell JW, Mathur AK, Nateras RN, Jucaud V, Dokmeci MR, Shen X, Aqel BA, Wang J, Nguyen MC, Zhu Y. A clinically deployed dual-compartment biochemical monitoring platform for human liver perfusion. Nature Communications. 2026; 17(1):5627. doi:10.1038/s41467-026-74799-y
  • 2026 Cabral TO, Ebrahimi A, Bagheri A, Khorsandi D, Dokmeci MR, Jucaud V, Pourkargar DB. A digital twin framework for predictive modeling of liver-on-a-chip system dynamics using limited experimental data. Chemical Engineering Journal. 2026. 177046. doi:10.1016/j.cej.2026.177046
  • 2026 Salih ARC, Peirsman A, Khorsandi D, Ferrao R, Ferreira L, Kamaraj M, John JV, Baquerizo A, Jucaud V. Liver Tissueoid on-a-Chip Modeling Liver Regeneration and Allograft Rejection. Advanced Materials. e21178. doi:10.1002/adma.202521178
  • 2025 Tang RC, et al. Rapid Point-of-Care Inflammatory Cytokine Monitoring during Normothermic Liver Perfusion via a Multiplexed Paper-Based Vertical Flow Assay. ACS Sensors. doi:10.1021/acssensors.5c01902
  • 2025 Maity S, Hassani Najafabadi A, et al. Lymph node paracortex-inspired on-a-chip recapitulating immunosenescence: a cancer vaccine immunogenicity and antitumoral efficacy screening platform. Lab on a Chip. doi:10.1039/D5LC00533G
  • 2025 Hernandez AL, et al. Continuous Optical Biosensing of IL-8 Cancer Biomarker Using a Multimodal Platform. Bioengineering. 12(10):1115. doi:10.3390/bioengineering12101115
  • 2025 Khorsandi D, Yang JW, et al. Real-Time and Label-Free Monitoring of Monoclonal Antibody Secretion Rates Using a PC-TIR Biosensor. Biosensors and Bioelectronics. 117979. doi:10.1016/j.bios.2025.117979
  • 2025 Nguyen HT, et al. Embolization-on-a-chip: Novel Vascularized Liver Tumor Model for Evaluation of Cellular and Cytokine Response to Embolic Agents. Biofabrication. doi:10.1088/1758-5090/adfbc3
  • 2025 Maity S, Jewell C, et al. Deciphering pericyte-induced temozolomide resistance in glioblastoma with a 3D microphysiological system mimicking the biomechanical properties of brain tissue. Acta Biomaterialia. doi:10.1016/j.actbio.2025.05.038
  • 2025 Joshi A, et al. Filamented Light (FLight) Biofabrication of Aligned Fibrillar Structures to Direct 3D Cell Organization Within Microgels. Small. 2500261. doi:10.1002/smll.202500261
  • 2025 de Barros NR, et al. Novel highly flexible collagen-loaded latex dressing to treat diabetic foot ulcer: A pilot clinical trial. Int J Biol Macromol. 308:142615. doi:10.1016/j.ijbiomac.2025.142615
  • 2025 Mathes TG, et al. Lipopeptide Hydrogel Possesses Adjuvant-Like Properties for the Delivery of the GPC-3 Peptide-derived Antigen. Adv. Funct. Mater. 2413870. doi:10.1002/adfm.202413870
  • 2025 Maity S, Hassani Najafabadi A, Kawakita S, Khorsandi D, Yilgor C, Jewell C, Mohaghegh M, Dokmeci MR, Khademhosseini A, Jucaud V. Modeling Immunosenescence on-a-chip: a platform for cancer vaccine efficacy assessment. bioRxiv. 2025; 05.14.654059. doi:10.1101/2025.05.14.654059 Peer-reviewed version in Lab on a Chip.
  • 2025 Nguyen HT, Tirpáková Z, Peirsman A, et al., Jucaud V. Embolization-on-a-chip: Novel Vascularized Liver Tumor Model for Evaluation of Cellular and Cytokine Response to Embolic Agents. bioRxiv. 2025; 03.30.646225. doi:10.1101/2025.03.30.646225 Peer-reviewed version in Biofabrication.
  • 2024 Kamaraj M, et al. Granular Porous Nanofibrous Microspheres Enhance Cellular Infiltration for Diabetic Wound Healing. ACS Nano. doi:10.1021/acsnano.4c10044
  • 2024 Mohaghegh N, et al. Simvastatin-Loaded Polymeric Nanoparticles: Targeting Inflammatory Macrophages for Local Adipose Tissue Browning in Obesity Treatment. ACS Nano. doi:10.1021/acsnano.4c10742
  • 2024 Yang JW, Khorsandi D, et al. Liver-on-a-Chip Integrated with Label-Free Optical Biosensors for Rapid and Continuous Monitoring of Drug-Induced Toxicity. Small. 2403560. doi:10.1002/smll.202403560
  • 2024 Costabeber G, et al. Additive manufacturing of polylactic acid scaffolds dip-coated with polycaprolactone for bone tissue engineering. Materials Today Communications. 40:109646. doi:10.1016/j.mtcomm.2024.109646
  • 2024 Mathes TG, et al. Effects of amyloid-β-mimicking peptide hydrogel matrix on neuronal progenitor cell phenotype. Acta Biomaterialia. doi:10.1016/j.actbio.2024.05.020
  • 2024 Rezaei Z, et al. Noninvasive and Continuous Monitoring of On-Chip Stem Cell Osteogenesis Using a Reusable Electrochemical Immunobiosensor. ACS Sens. doi:10.1021/acssensors.3c02165
  • 2024 Jiang C, et al. A Role of Tissue-Resident Memory T Cells on Melanoma Prognosis. iScience. 27(3):109277. doi:10.1016/j.isci.2024.109277
  • 2024 Maity S, Jewell C, Yilgor C, et al., Jucaud V. Microphysiological system modeling pericyte-induced temozolomide resistance in glioblastoma. bioRxiv. 2024; 07.16.603611. doi:10.1101/2024.07.16.603611 Peer-reviewed version in Acta Biomaterialia.
  • 2023 Herculano RD, et al. Amphotericin B-loaded natural latex dressing for treating Candida albicans wound infections. J Control Release. 365:744-758. doi:10.1016/j.jconrel.2023.12.010
  • 2023 Kawakita S, et al. Rapid integration of screen-printed electrodes into thermoplastic organ-on-a-chip devices for real-time monitoring of TEER. Biomedical Microdevices. 25:37. doi:10.1007/s10544-023-00669-9
  • 2023 Abdalla G, et al. Eco-sustainable coatings based on chitosan, pectin, and lemon essential oil nanoemulsion. Int J Biol Macromol. 249:126016. doi:10.1016/j.ijbiomac.2023.126016
  • 2023 Herculano RD, et al. Aloe vera-loaded natural rubber latex dressing as a potential complementary treatment for psoriasis. Int J Biol Macromol. 242:124779. doi:10.1016/j.ijbiomac.2023.124779
  • 2023 de Souza Silva FK, et al. Biocompatible anti-aging face mask prepared with curcumin and natural rubber. Int J Biol Macromol. 124778. doi:10.1016/j.ijbiomac.2023.124778
  • 2023 Wilson N, et al. Ixazomib for Desensitization (IXADES) in Highly Sensitized Kidney Transplant Candidates. Kidney360. doi:10.34067/KID.0000000000000113
  • 2023 Mandal K, et al. Oxygen-generating microparticles downregulate HIF-1α expression, increase cardiac contractility, and mitigate ischemic injury. Acta Biomaterialia. 159:211-225. doi:10.1016/j.actbio.2023.01.030
  • 2023 Ge G, et al. Deep Eutectic Solvents-Based Ionogels with Ultrafast Gelation and High Adhesion. Adv. Funct. Mater. 33(9):2207388. doi:10.1002/adfm.202207388
  • 2023 Mecwan MM, et al. Thermoresponsive shear-thinning hydrogel hemostats for minimally invasive treatment of external hemorrhages. Biomater Sci. 11(3):949-963. doi:10.1039/d2bm01559e
  • 2022 Zhu Y, et al. A Microfluidic Contact Lens to Address Contact Lens-Induced Dry Eye. Small. 2207017. doi:10.1002/smll.202207017
  • 2022 de Paiva MB, et al. Latex-collagen membrane: an alternative treatment for tibial bone defects. J Mater Sci. doi:10.1007/s10853-022-08009-7
  • 2022 Li S, et al. Microchambers Containing Contact Lens for the Noninvasive Detection of Tear Exosomes. Adv Funct Mater. 2206620. doi:10.1002/adfm.202206620
  • 2022 Zhu Y, et al. Epidermis-Inspired Wearable Piezoresistive Pressure Sensors Using Reduced Graphene Oxide. Small Methods. 6(1):2100900. doi:10.1002/smtd.202100900
  • 2022 Lee J, et al. pH-Responsive doxorubicin delivery using shear-thinning biomaterials for localized melanoma treatment. Nanoscale. 14(2):350-60. doi:10.1039/D1NR05738C
  • 2021 Zhu Y, et al. Ultrathin-shell epitaxial Ag@Au core-shell nanowires for high-performance devices. Nano Research. 14(11):4294-303. doi:10.1007/s12274-021-3718-z
  • 2020 Kawakita S, Beaumont JL, Jucaud V, Everly MJ. Personalized prediction of delayed graft function for recipients of deceased donor kidney transplants with machine learning. Scientific Reports. 10(1):18409. doi:10.1038/s41598-020-75473-z
  • 2020 Jucaud V, et al. Validation and cross-reactivity pattern assessment of monoclonal antibodies for donor-specific IgG antibody subclasses. J Immunol Methods. 486:112847. doi:10.1016/j.jim.2020.112847
  • 2020 Chen Y, et al. Microengineered poly(HEMA) hydrogels for wearable contact lens biosensing. Lab on a Chip. 20(22):4205-14. doi:10.1039/D0LC00446D
  • 2019 Jucaud V, Shaked A, et al. Prevalence and Impact of De Novo Donor-Specific Antibodies During a Multicenter Immunosuppression Withdrawal Trial in Adult Liver Transplant Recipients. Hepatology. 69(3):1273-86. doi:10.1002/hep.30281
  • 2017 Ravindranath MH, Jucaud V, Ferrone S. Monitoring native HLA-I trimer specific antibodies in Luminex multiplex single antigen bead assay. J Immunol Methods. 450:73-80. doi:10.1016/j.jim.2017.07.016
  • 2017 Ravindranath MH, Jucaud V, et al. Nature and Clonality of the Fluoresceinated Secondary Antibody in Luminex Multiplex Bead Assays. J Immunol. 198(11):4524-38. doi:10.4049/jimmunol.1700050
  • 2017 Jucaud V, Ravindranath MH, Terasaki PI. Conformational Variants of the Individual HLA-I Antigens on Luminex Single Antigen Beads. Transplantation. 101(4):764-77. doi:10.1097/TP.0000000000001420
  • 2017 Jucaud V. The Immunogenicity of HLA Class II Mismatches. J Immunol Res. 2017:2748614. doi:10.1155/2017/2748614
  • 2017 Hilali FE, Jucaud V, et al. Characterization of the Anti-HLA Class I and II IgG Antibodies in Moroccan IVIg. Int J Immunology. 5(4):53-65. doi:10.11648/j.iji.20170504.11
  • 2016 Ravindranath MH, Jucaud V, et al. Significance of the differences in the prevalence of anti-HLA antibodies in matched pairs of mother's and cord blood. Immunology Letters. 170:68-79. doi:10.1016/j.imlet.2015.11.016
  • 2016 Jucaud V, et al. Serum antibodies to HLA-E, HLA-F and HLA-G in patients with SLE during disease flares. Clin Exp Immunol. 183(3):326-40. doi:10.1111/cei.12724
  • 2015 Ravindranath MH, et al. The Monospecificity of Novel Anti-HLA-E Monoclonal Antibodies. Monoclon Antib Immunodiagn Immunother. 34(3):135-53. doi:10.1089/mab.2014.0096
  • 2015 Ravindranath MH, et al. IgG purified from human sera mirrors IVIg HLA reactivity and recognizes one's own HLA types. Clin Exp Immunol. 179(2):309-28. doi:10.1111/cei.12450
  • 2014 Zhu D, et al. Suppression of allo-HLA antibodies secreted by B memory cells: IVIg versus a monoclonal anti-HLA-E IgG. Clin Exp Immunol. 177(2):464-77. doi:10.1111/cei.12307
  • 2014 Sasaki T, et al. Gastric cancer progression may involve a shift in HLA-E profile. Int J Cancer. 134(7):1558-70. doi:10.1002/ijc.28484
  • 2014 Ravindranath MH, et al. Suppression of blastogenesis and proliferation of activated CD4+ T cells: IVIg versus novel anti-HLA-E monoclonal antibodies. Clin Exp Immunol. 178(1):154-77. doi:10.1111/cei.12391
  • 2013 Ravindranath MH, et al. Therapeutic preparations of IVIg contain naturally occurring anti-HLA-E antibodies that react with HLA-Ia alleles. Blood. 121(11):2013-28. doi:10.1182/blood-2012-08-447771

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VJLabs · Terasaki Institute for Biomedical Innovation · Woodland Hills, CA