Stem Cells Explained, Part 3: How Do We Know We Have a Stem Cell?

First, before I start, I want to direct you to Euro Stem Cell's wonderful resource on all things stem cell. Their site goes into a lot more detail about the different stem cell types and the specific therapeutic applications of stem cells, but still in very understandable terms. If there are specific therapeutic potentials or stem cell types you're interested in, this is a great place to look them up. (That said, I'm also happy to take topic requests, so if you have any specific questions, please leave them in the comments and I'll do my best to answer them!)

Today's topic of stem cell discussion is how we specifically define and identify stem cells. As I've already discussed, stem cells are vaguely defined as the cells which give root to all other cells, including themselves. This is a useful starting definition, but unfortunately the cells in the body aren't quite that clear cut. This is because cells specialize gradually, and it can be hard to tell them apart. 

Stem Cells Explained, Part 2: Why Do We Care?

To continue on in our discussion of stem cells, I thought it would be worthwhile to look at why stem cell biology is considered so exciting, both by scientists and in the media. I want to stress that this post is highlighting what we hope is possible; later on, I plan to look in more detail about how many of these hopes are realistic, and on what timeline. However, there are a lot of exciting potential uses for stem cells, many of which that are, in my opinion, under-reported in the popular press.

Stem Cells Explained, Part 1: What Are They?

Stem cell biology has arguably been one of the most controversial topics in biology in the early 2000s. Because it's also the field in which I have done the majority of my professional work, it's a topic I really wanted to start with early on in this blog. I began what I thought would be one post on the basics of stem cells, but it has quickly ballooned into a series, which I will release over the course of the next couple of week. And I'm sure this will just be the start of my coverage on the field. For the purpose of this initial series, though, I thought I would try to explain what exactly a stem cell is, and, possibly more importantly, what stem cells mean in the context of the media articles and advertisements that mention them.

So, what exactly is a stem cell, anyway?

For the purpose of this introduction, I am going to define stem cells as "the cells that make all the other cells". There is a much more precise, functional definition of what makes a stem cell which is used by scientists, and which I will cover later this week. However, for the purpose of today's discussion, this is a good starting point.

Using TB to Fight Cancer: Using One Formerly-Deadly Disease to Fight Another

A friend of mine mentioned to me at dinner a few weeks ago that one of her relatives was undergoing cancer treatment, which involved him being infected with tuberculosis. This immediately peaked my interest, because as a former cancer researcher, I was super curious about how a bacterial infection could help defeat cancer cells. Several hours of research later, this is what I found out: