What determines AAV tropism?

Besides virus capsid, tissue tropisms of AAV vectors are also influenced by cell surface receptors, cellular uptake, intracellular processing, nuclear delivery of the vector genome, uncoating, and second-strand DNA conversion [3].

What is the difference between AAV serotypes?

Eleven serotypes of AAV have thus far been identified, with the best characterized and most commonly used being AAV2….AAV Serotypes.

Tissue	Optimal Serotype
CNS	AAV1, AAV2, AAV4, AAV5, AAV8, AAV9
Heart	AAV1, AAV8, AAV9
Kidney	AAV2
Liver	AAV7, AAV8, AAV9

How does AAV target cells?

Upon entry of the virus into target cells during the course of the natural infection process, the virus is internalized through clathrin-mediated uptake into endosomes [71]. After escape from the endosome, the virus is transported to the nucleus where the ITR-flanked transgene is uncoated from the capsid [72].

What cells do AAV infect?

AAV2 presents natural tropism towards skeletal muscles, neurons, vascular smooth muscle cells and hepatocytes. Three cell receptors have been described for AAV2: heparan sulfate proteoglycan (HSPG), aVβ5 integrin and fibroblast growth factor receptor 1 (FGFR-1).

Does AAV infect mice?

These studies are an assessment of AAV replication in mouse fibroblast cells using MAV-1 as a helper virus. Our results indicate that while there are some limitations to AAV replication, a full and productive infection occurs in mouse cells.

Is AAV lytic or lysogenic?

Once in the cell, AAVs can partake in either lytic or lysogenic replication. If a helper virus is available, the AAV can engage in a lytic life cycle, which involves rapid replication within the cell, which subsequently bursts, releasing the new particles into the environment.

Does AAV integrate into host genome?

In many cases, AAV vectors integrate into the host cell genome, which can be important for certain applications, but can also have unwanted consequences.

Does AAV integrate into genome?

What is tropism of AAV serotype?

These serotypes differ in their tropism, or the types of cells they infect, making AAV a very useful system for preferentially transducing specific cell types. The chart below gives a summary of the tropism of AAV serotypes, indicating the optimal serotype (s) for transduction of a given organ.

What is the most common AAV serotype?

AAV Serotypes. Eleven serotypes of AAV have thus far been identified, with the best characterized and most commonly used being AAV2. These serotypes differ in their tropism, or the types of cells they infect, making AAV a very useful system for preferentially transducing specific cell types.

How many serotypes of antiphospholipid virus are there?

Eleven serotypes of AAV have thus far been identified, with the best characterized and most commonly used being AAV2. These serotypes differ in their tropism, or the types of cells they infect, making AAV a very useful system for preferentially transducing specific cell types.

Which adeno-associated virus serotype best targets specific retinal cell types?

There is much debate on the adeno-associated virus (AAV) serotype that best targets specific retinal cell types and the route of surgical delivery—intravitreal or subretinal. This study compared three of the most efficacious AAV vectors known to date in a mouse model of retinal degeneration ( rd1 mouse) and macaque and human retinal explants.