---
title: To be fresh or not to be fresh? The science behind... | Science Exchange
description: Fresh or cryopreserved leukopaks? Watch this on-demand webinar for stability data across storage conditions to optimize your immune cell research outcomes.
---

[Science Exchange Blog | R&D Outsourcing, Supplier Orchestration & Life Sciences Operations Insights ](https://www.scienceexchange.com/blog)

# [To be fresh or not to be fresh? The science behind... | Science Exchange](https://www.scienceexchange.com/blog/to-be-fresh-or-not-to-be-fresh-the-science-behind)

 Written by [Science Exchange](https://www.scienceexchange.com/blog/author/science-exchange) | Dec 2, 2025 10:20:20 AM

### [WATCH ON DEMAND](https://events.zoom.us/e/hub/channel/OmdmXYEhSKyN4XlWDN2eBw/recording/GZWxMUlsTpCu4TLVTbRNwQ?utm_campaign=11905092-FY25-WBN-SUP-CLR-To-be-fresh&utm_source=hs_email&utm_medium=email&_hsenc=p2ANqtz-8EHp0C6CGhVAT4lVYHg6cxz3EYbvsHjn2D2SuHvkqLRHGMrqNIJAaxqw_mfrHG8LQsFQ5g)

Are you deciding between fresh or cryopreserved leukopaks for your immune cell research or cell therapy development? The preservation quality of your leukopaks can make or break your research outcomes and therapy effectiveness.

In this data-driven webinar, Wassim Basheer, Ph.D., from Charles River Laboratories, will provide insightful research on how different storage temperatures impact leukopak stability over time.

Get the scientific insights you need to make informed decisions that will optimize your research and improve outcomes. You’ll learn:

- Leukopak collection parameters - Understand the nuances of leukopak collection and specific use cases for different research applications.
- Fresh vs. cryopreserved analysis - Explore the benefits and challenges of both options with practical considerations for your specific research needs.
- Stability data deep dive - Access exclusive stability data across various temperature conditions and timeframes.
- Quickly source and instantly procure - Source high-quality leukopaks directly through the Science Exchange Marketplace.

**Featured Speakers:**

- Wassim Basheer, Ph.D., Sr. Product Manager, Charles River Laboratories
- Chris Zan, VP, Supplier Business, Science Exchange

[View full post](https://www.scienceexchange.com/blog/to-be-fresh-or-not-to-be-fresh-the-science-behind)

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