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Updated: Jul 15, 2026

An In Vitro Model for Studying Cellular Transformation by Kaposi Sarcoma Herpesvirus
Published on: August 25, 2017
Targeting the PI3K and MAPK pathways to treat Kaposi's-sarcoma-associated herpes virus infection and pathogenesis
Phelps J Lambert1, Aniqa Z Shahrier, Audy G Whitman
1Brody School of Medicine at East Carolina University, Department of Microbiology & Immunology, Greenville, NC 27834, USA.
Abstract:
Cells require the ability to appropriately respond to signals in their extracellular environment. To initiate, inhibit and control these processes, the cell has developed a complex network of signaling cascades. The phosphatidylinositol 3-kinase (PI3K) and mitogen-activated protein kinase (MAPK) signaling pathways regulate several responses including mitosis, apoptosis, motility, proliferation, differentiation and many others. It is not surprising, therefore, that many viruses target the PI3K and MAPK pathways as a means to manipulate cellular function. Recently, Kaposi's sarcoma-associated herpes virus (KSHV) has been added to the list. KSHV manipulates the PI3K and MAPK pathways to control such divergent processes as cell survival, cellular migration, immune responses, and to control its own reactivation and lytic replication. Manipulation of the PI3K and MAPK pathways also plays a role in malignant transformation. Here, the authors review the potential to target the PI3K and MAPK signaling pathways to inhibit KSHV infection and pathogenesis.
Insights
Kaposi
Area of Science:
- Cellular biology
- Virology
- Molecular signaling
Background:
- Cellular signaling pathways, including phosphatidylinositol 3-kinase (PI3K) and mitogen-activated protein kinase (MAPK), are crucial for regulating diverse cellular functions.
- Viruses often exploit these signaling pathways to manipulate host cell processes for their own benefit.
- Kaposi's sarcoma-associated herpes virus (KSHV) is a notable virus that targets PI3K and MAPK signaling.
Purpose of the Study:
- To review how KSHV manipulates PI3K and MAPK signaling pathways.
- To explore the role of these pathways in KSHV infection and pathogenesis.
- To discuss the potential of targeting PI3K and MAPK pathways to inhibit KSHV.
Main Methods:
- Literature review of existing research on KSHV, PI3K, and MAPK signaling.
- Analysis of studies detailing viral manipulation of cellular pathways.
- Synthesis of information on the role of these pathways in viral replication and disease.
Main Results:
- KSHV manipulates PI3K and MAPK pathways to control cell survival, migration, and immune responses.
- These pathways are critical for KSHV reactivation and lytic replication.
- KSHV-induced manipulation of PI3K and MAPK signaling contributes to malignant transformation.
Conclusions:
- Targeting PI3K and MAPK signaling pathways presents a potential therapeutic strategy against KSHV infection.
- Understanding KSHV's manipulation of these pathways is key to developing novel antiviral treatments.
- Inhibition of PI3K and MAPK could disrupt KSHV pathogenesis and viral replication.
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