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 […]

Ask A Scientist:
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 […]

Ask A Scientist:
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 […]

Ask A Scientist:
What’s the Difference Between Serum and Plasma?

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For some scientists, the difference between serum and plasma is just nomenclature. On more than once occasion we’ve had to ask customers, “Do you mean serum or do you mean plasma?” only to hear, “either one” or “aren’t they the same thing?” Let us clear up the confusion. Serum vs. Plasma: What’s the Difference? Serum […]