Automated anti-HLA antibody analysis

The missing piece to your Tx lab

SmartSAg helps transplant labs turn single-antigen anti-HLA bead assays into clear, standardized results.

The algorithm

SAgA — our patented Single Antigen Algorithm

SAgA is the engine inside our software. It reads single-antigen bead (SAB) assays and turns the raw signal (e.g. MFI for the Luminex format) into clear, standardized interpretations, at the resolution level you choose — automatically, reproducibly and traceably.

SAgA interpreting single-antigen bead MFI into antibody calls

From measured signal to antibody

SAgA interprets the raw signal (e.g. MFI for the Luminex format), decomposing each individual signal into the antibodies actually present — not just a list of positives. It resolves reactivity against the list of Attributes, the allowed antibody targets you have predefined — serogroup, antigen, serotype, eplet, or any custom list — adapts the positivity threshold bead by bead, and keeps every parameter fully under your control.

SAgA flagging donor-specific antibodies (DSA) against the donor typing

Donor-specific antibodies (DSA)

SAgA matches every antibody to the donor's HLA typing for a complete virtual crossmatch. It flags which antibodies are donor-specific (DSA) and which are not, and grades each verdict — certain, probable, possible, not excluded — to support fair, consistent decisions on graft access.

SAgA, SmartSAg… and YOU

SAgA is our patented algorithm. This site's demonstration shows it at work on real analyses, with no account and no sign-up. SmartSAg, the software built on it, is distributed separately — and our goal is to bring it to you: the algorithm running in your own lab, inside your workflow and infrastructure.

Team

A team of HLA science & technology experts

SiLho was founded by experts in immunology and biomedical science, and grew out of the reference medical-biology laboratory for anti-HLA immunization.

Dr. Romain Lhotte
Co-founder · Engineer, PhD

Engineer with a PhD in mathematics and medical biology.

Prof. Jean-Luc Taupin
Co-founder · Immunology & histocompatibility, PharmD, PhD

Pharmacist-biologist, specialist in immunology and histocompatibility.

Jérémy Siemowski
Co-founder · Bioinformatics engineer

Bioinformatics engineer specialized in HLA and transplant immunology.

Dr. Cédric Usureau
Co-founder · Medical biologist, MD, PhD

Medical biologist and bioinformatician, bridging clinical immunology and computational science.

Bring SmartSAg to your lab

Tell us about your workflow and we'll show you how SmartSAg fits in.

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