List three major families of neurotrophic factors. |...

Name: Problem 4, Chapter 15: Neuroimmune Pharmacology
Uploaded: 2020-06-29T16:17:40-08:00
Duration: 3 min 25 s
Channel: Sidharth Anand
Description: List three major families of neurotrophic factors.

Key Concepts

Cytokine Family

This group includes neurotrophic factors such as ciliary neurotrophic factor (CNTF) and related molecules. Cytokine family members have a dual role as immune signaling molecules and neurotrophic agents; they are involved in neuronal survival and repair, as well as modulating inflammatory responses within the nervous system.

GDNF Family

The Glial cell line-derived neurotrophic factor family consists of proteins like GDNF, neurturin, artemin, and persephin. These factors are known for their potent effects on the survival and differentiation of various neuronal subpopulations, especially motor neurons and dopaminergic neurons, and are also involved in processes of neural regeneration.

Neurotrophic Factors

These are a group of proteins that play essential roles in the development, maintenance, and survival of neurons in both the central and peripheral nervous systems. They regulate neural growth, differentiation, and plasticity, ensuring that neurons can form the correct connections and adapt to changes throughout life.

Neurotrophin Family

This family includes factors such as NGF, BDNF, NT-3, and NT-4/5. Neurotrophins bind to specific receptors on neurons to support survival, promote neurite outgrowth, and enhance synaptic plasticity, making them critical for proper nervous system function during development and in adult neural repair mechanisms.

Transcript

00:01 Okay, so in this question, we are being asked to determine what are the three factors that complicate studying inheritance of human characteristics.

00:15 So that complicate studying human characteristics.

00:28 Okay.

00:29 So when we think about this, what we want to really start thinking about is why can't we manipulate humans in order to study how traits are passed on from one generation to another? and the best way to do this is by contrasting humans with a very good model organism, such as, rosopula, which is fruit flies, right? so fruit flies, they replicate very quickly, so we can say quick generation of offspring.

01:02 You generate many offspring when the flies replicate, when the flies reproduce.

01:09 So you can study, you can have this large sample size where you can kind of test easily observable traits and, you know, like eye color.

01:17 And there's so many, you know, sex -linked inheritance was discovered in drosophila.

01:21 So there's a lot of studies that can be done by, manipulating the genetics of drosophila very quickly and seeing how they replicate and translate over many, many offspring over many generations very quickly.

01:32 And of course, the other big benefit is that you can set up controlled crosses.

01:40 So if flies can do this, you may be starting to see that, wow, humans can't do any of these things, right? these kinds of characteristics are just not present in humans.

01:50 Humans have a very long generation...

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