Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)

Bruton’s tyrosine kinase (BTK) plays a key role in the B-cell receptor (BCR) signaling pathway and confers anti-apoptotic and proliferative properties to malignant B-cells in chronic lymphocytic leukemia (CLL). Small molecule BTK inhibitors were designed to bind BTK’s active site and block downstrea...

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Main Authors: Alexandra Chirino, Skye Montoya, Anita Safronenka, Justin Taylor
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/14/12/2182
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author Alexandra Chirino
Skye Montoya
Anita Safronenka
Justin Taylor
author_facet Alexandra Chirino
Skye Montoya
Anita Safronenka
Justin Taylor
author_sort Alexandra Chirino
collection DOAJ
description Bruton’s tyrosine kinase (BTK) plays a key role in the B-cell receptor (BCR) signaling pathway and confers anti-apoptotic and proliferative properties to malignant B-cells in chronic lymphocytic leukemia (CLL). Small molecule BTK inhibitors were designed to bind BTK’s active site and block downstream signaling. These drugs have now been used in the treatment of thousands of patients with CLL, the most common form of leukemia in the western hemisphere. However, adverse effects of early generations of BTK inhibitors and resistance to treatment have led to the development of newer, more selective and non-covalent BTK inhibitors. As the use of these newer generation BTK inhibitors has increased, novel BTK resistance mutations have come to light. This review aims to discuss previously known and novel BTK mutations, their mechanisms of resistance, and their relationship with patient treatment. Also discussed here are future studies that are needed to investigate the underlying cause allowing these mutations to occur and how they incite resistance. New treatments on the horizon that attempt to maneuver around these resistance mutations can be met with new resistance mutations, creating an unmet need for patients with CLL. Novel therapies and combinations that address all forms of resistance are discussed.
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spelling doaj.art-4a7dd8d9ca5b4874b29ff9e691caf6e72023-12-22T14:11:13ZengMDPI AGGenes2073-44252023-12-011412218210.3390/genes14122182Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)Alexandra Chirino0Skye Montoya1Anita Safronenka2Justin Taylor3Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USASylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USASylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USASylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USABruton’s tyrosine kinase (BTK) plays a key role in the B-cell receptor (BCR) signaling pathway and confers anti-apoptotic and proliferative properties to malignant B-cells in chronic lymphocytic leukemia (CLL). Small molecule BTK inhibitors were designed to bind BTK’s active site and block downstream signaling. These drugs have now been used in the treatment of thousands of patients with CLL, the most common form of leukemia in the western hemisphere. However, adverse effects of early generations of BTK inhibitors and resistance to treatment have led to the development of newer, more selective and non-covalent BTK inhibitors. As the use of these newer generation BTK inhibitors has increased, novel BTK resistance mutations have come to light. This review aims to discuss previously known and novel BTK mutations, their mechanisms of resistance, and their relationship with patient treatment. Also discussed here are future studies that are needed to investigate the underlying cause allowing these mutations to occur and how they incite resistance. New treatments on the horizon that attempt to maneuver around these resistance mutations can be met with new resistance mutations, creating an unmet need for patients with CLL. Novel therapies and combinations that address all forms of resistance are discussed.https://www.mdpi.com/2073-4425/14/12/2182chronic lymphocytic leukemiaBruton’s tyrosine kinaseresistance mutationstargeted therapy
spellingShingle Alexandra Chirino
Skye Montoya
Anita Safronenka
Justin Taylor
Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)
Genes
chronic lymphocytic leukemia
Bruton’s tyrosine kinase
resistance mutations
targeted therapy
title Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)
title_full Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)
title_fullStr Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)
title_full_unstemmed Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)
title_short Resisting the Resistance: Navigating BTK Mutations in Chronic Lymphocytic Leukemia (CLL)
title_sort resisting the resistance navigating btk mutations in chronic lymphocytic leukemia cll
topic chronic lymphocytic leukemia
Bruton’s tyrosine kinase
resistance mutations
targeted therapy
url https://www.mdpi.com/2073-4425/14/12/2182
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