Ask A Scientist: When Should I Use NK Cells or Cytotoxic T Cells?

Natural Killer cells, as their name suggests, are the prime example of cytotoxic cells. However, NK cells aren’t your only option for cytotoxicity. Activated CD8+ T cells are the classic example of cytotoxic T cells, but CD4+ T cells have also been demonstrated to kill their targets. In this post, we’ll dive into the different […]

Ask A Scientist: What’s the Difference Between Naïve and Memory T Cells?

We’re often asked about naïve T cells and memory T cells; specifically if we have both types in our inventory. We do carry both types of CD4+ T cells from multiple donors, and savvy researchers know when to ask for each. Naïve T cells are essential components of the immune system that enable the body […]

Ask A Scientist: Can I Get the Same Product or Donor for Long-Term Projects?

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When you buy immune cell products, you want a supplier that is committed to providing quality cells using a sustainable business model. If you find a cell type or donor you need, you should be able to order the same product again and again until your research needs are met. At Astarte Biologics, we believe […]

Ask A Scientist:
Are Your Blood Samples Collected Ethically?

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If you’ve ever purchased human cells for research, you’ve probably thought about the blood donors: Did my supplier source these samples responsibly? Did they follow ethical practices and recommended guidelines? If these cells were sourced unethically, will I get in trouble for using them? We’re here to give you some peace of mind and tips […]

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How Can Studying Antigen-Specific T Cells Help Us Make CAR T Cells More Powerful?

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In the last few years, CAR T cell-based immunotherapies have shown great promise in clinical trials, and scientists are continuing to advance their knowledge with hopes of developing CAR T cell therapies for a range of cancers. CAR T cells are designed to essentially function as antigen-specific T cells, which can be difficult to collect […]

Ask A Scientist:
Should I Get CD34+ Stem Cells from Bone Marrow, Cord Blood, or Peripheral Blood?

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You might know that CD34+ stem cells can be sourced from three different locations: bone marrow, cord blood, and peripheral blood. But does it matter which source you use for your CD34+ cells? And do you know the different functions and best use cases for each? We’ll help you find the right stem cell source […]

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What’s the Difference Between Human Monocytes and Macrophages?

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Monocytes and macrophages are very closely related cells with a few important distinctions and different use cases. Put simply, monocytes are macrophages in the blood; macrophages are monocytes in tissue. Understanding the Difference Monocytes are the largest type of white blood cells and play an important role in the adaptive immunity process. Monocytes typically circulate […]

Ask A Scientist:
Should I Use CMV Antigens or CMV Peptides?

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CMV antigens and CMV peptides are both great tools for studying the implications of the human cytomegalovirus (CMV), which infects nearly 1/3 of children before the age of five and more than half of adults in the U.S. Although CMV-infected individuals are often asymptomatic, the virus does pose a serious threat to individuals with weakened […]

Ask A Scientist:
What About the Other Half of the Caucasian Population?

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We get many orders and requests for donors who are HLA-A*0201 positive and CMV positive, and for good reason. Scientists know that the HLA-A*0201 allele is the most common allele found in the European/North American Caucasian population, expressed by about half of all individuals. But are there alternatives to HLA-A*0201 positive donors? And should you […]