Acceleration of Gene Therapy Development through Evaluation of Lentivirus Characteristics: 'Replicon'

**[Challenge]** Even with high-purity samples like cell culture samples, accurately characterizing extracellular vesicles (EVs) is not easy. Interference from lipoproteins, cellular debris, and protein aggregates poses challenges. Additionally, the complexity of biological fluids, limited sample volumes, and the presence of rare EV subpopulations further complicate the analysis. **[Solution]** Our Leprechaun separates EVs on Luni consumables, allowing for the measurement of particle size and concentration, and simultaneous analysis of up to four surface or internal markers. It can be applied to samples of less than 25µL, does not require sample purification, and offers sensitivity up to 5×10⁵ particles/mL, single particle analysis, and EV size measurement down to 35nm. **[Demonstration]** In this webinar, we will introduce how Leprechaun combines single particle interference measurement with immunofluorescence imaging to achieve comprehensive analysis of any EV sample. It is also possible to confirm the loading efficiency of cargo carried by EVs, distinguish whether proteins are soluble or EV-derived, and obtain a breakdown of all EV subpopulations.

Unchained Labs, Inc. will exhibit at the 41st Annual Meeting of the Japanese DDS Society, which will be held from June 17 (Tuesday). At our booth, you can see a wide range of products, from the manufacturing of lipid nanoparticles (LNP) to their characterization, as well as products for ADC and the evaluation of extracellular vesicles. Additionally, on the first day of the event, July 17, we will also hold a presentation by exhibiting companies. All of our staff sincerely look forward to your visit. Event Name: 41st Annual Meeting of the Japanese DDS Society Date: July 17 (Tuesday) - July 18 (Wednesday) Venue: Makuhari Messe International Conference Hall Details: https://procomu.jp/dds2025/ <Exhibiting Company Presentation> July 17 (Tuesday) around 15:28

CPhI Japan Exhibition & Seminar! April 9 (Wednesday) - 11 (Friday) @ Tokyo Big Sight Unchained Labs, Inc. will be exhibiting in the biopharmaceutical zone at CPhI Japan this year as well. Additionally, we will hold a seminar on the second day! Please visit our booth at Tokyo Big Sight. <Exhibitor Seminar> Date and Time: April 10 (Thursday) 13:00-13:30 Venue: 5B "Stability Evaluation of Biopharmaceuticals - Towards a New Era of High-Speed and High-Throughput" *No prior reservation required, free of charge.

Our company will be exhibiting at the 29th Annual Meeting of the Japanese Society of Gene and Cell Therapy, which will be held from September 11 (Monday) to September 13 (Wednesday), 2023. At our booth, we will introduce groundbreaking solutions for gene therapy research and development, including the stability evaluation device Stunner and our new product Leprechaun. We invite you to visit our booth.