Abstract
Protein Kinase C-α (PKCα) is a serine/threonine kinase that has recently been associated with increased susceptibility in several enteric infections through regulation of host cell actin cytoskeleton. In the scope of Cryptosporidium infection, changes in PKCα expression and activity have been reported in vitro. Past studies have shown Cryptosporidium requires host cell actin polymerization during infection with the identification of some important mediators, [e.g. c-Src, PI3K, Cdc42, N-WASP, Arp 2/3 complex], however a potential mechanism between PKCα and regulation of actin has not been established. Hence, the aim of this review is to present an overview of the progress made thus far attempting to understand changes in host cell characteristics during Cryptosporidium infection and to propose the role of PKCα during this process. We report on findings in the field using techniques such as immunofluorescent imaging, RNA-seq, and transmission electron microscopy (TEM). Although the data linking PKCα and Cryptosporidium is limited in the field, the mechanism outlined is promising for PKCα as a potential target for treatment of cryptosporidiosis.
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Abbreviations
- PKC:
-
Protein Kinase C
- PKCα:
-
Protein Kinase C alpha-protein
- CDPK1:
-
Calcium-dependent protein kinase 1
- PKD3:
-
Protein Kinase D3
- RNA-seq:
-
(RNA-sequencing
- TEM:
-
Transmission electron microscopy
- PRKCA :
-
Protein Kinase C alpha-gene
- BKI:
-
Bumped-kinase Inhibitors
- c-Src:
-
Proto-oncogene tyrosine-protein kinase Src
- PI3K:
-
Phosphoinositide 3-kinase
- Cdc42:
-
Cell Division Cycle 42
- N-WASP:
-
Neural Wiskott-Aldrich syndrome protein
- Arp 2/3:
-
Actin-related protein 2/3
- C. parvum :
-
Cryptosporidium parvum
- C. hominis :
-
Cryptosporidium hominis
- PKCβ:
-
Protein Kinase C beta
- JAK2:
-
Janus Kinase 2
- Chk1/2:
-
Checkpoint Kinase 1/2
- SI:
-
Small intestinal
- PKCε:
-
Protein Kinase C epsilon
- F-actin:
-
Filamentous actin
- GTPase:
-
Guanosine-5′-triphosphate hydrolase enzyme
- GEF:
-
Guanine nucleotide exchange factor
- Aqp1:
-
Aquaporin 1
- Sglt1:
-
Sodium/Glucose transporter 1
- HTT:
-
Host-targeted therapies
- FDA:
-
Food and drug administration
- IEC:
-
Intestinal epithelial cell
- EC50:
-
Effective concentration of inhibitor that reduced infection by half
- IC50:
-
Inhibitory concentration where enzyme binding is reduced by half
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Funding
This study was funded by Gates Cryptosporidium Grant #: OPP1160655 and Cryptosporidium Field Studies Grant#: R01AI043596.
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All authors declare they have no conflicts of interest.
Human and animal studies discussed in this paper have been previously published. Informed consent for participation and publication was obtained from all individuals.
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McCowin, S., Marie, C. (2020). The Role of Host PKCα During Intracellular Cryptosporidium Infection. In: Guillen, N. (eds) Eukaryome Impact on Human Intestine Homeostasis and Mucosal Immunology. Springer, Cham. https://doi.org/10.1007/978-3-030-44826-4_15
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DOI: https://doi.org/10.1007/978-3-030-44826-4_15
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