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Cook SL, Al Amin M, Bari S, Poonnen PJ, Khasraw M, Johnson MO. Immune Checkpoint Inhibitors in Geriatric Oncology. Curr Oncol Rep 2024; 26:562-572. [PMID: 38587598 DOI: 10.1007/s11912-024-01528-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2024] [Indexed: 04/09/2024]
Abstract
PURPOSE OF REVIEW This manuscript will update prior reviews of immune checkpoint inhibitors (ICIs) in light of basic science, translational, and clinical discoveries in the field of cancer immunology and aging. RECENT FINDINGS ICIs have led to significant advancements in the treatment of cancer. Landmark trials of ICIs have cited the efficacy and toxicity experienced by older patients, but most trials are not specifically designed to address outcomes in older patients. Underlying mechanisms of aging, like cellular senescence, affect the immune system and may ultimately alter the host's response to ICIs. Validated tools are currently used to identify older adults who may be at greater risk of developing complications from their cancer treatment. We review changes in the aging immune system that may alter responses to ICIs, report outcomes and toxicities in older adults from recent ICI clinical trials, and discuss clinical tools specific to older patients with cancer.
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Affiliation(s)
- Sarah L Cook
- Department of Neurosurgery, Duke University School of Medicine, 047 Baker House, Trent Drive, Durham, NC, 27710, USA
| | - Md Al Amin
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
- Sher-E-Bangla Medical College, Barisal City, Bangladesh
| | - Shahla Bari
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Pradeep J Poonnen
- Department of Veterans Affairs, Durham VA Medical Center, Durham, NC, USA
- Department of Veterans Affairs, National TeleOncology Program, Durham, NC, USA
| | - Mustafa Khasraw
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA.
- Department of Neurosurgery, Duke University School of Medicine, 047 Baker House, Trent Drive, Durham, NC, 27710, USA.
| | - Margaret O Johnson
- Department of Neurosurgery, Duke University School of Medicine, 047 Baker House, Trent Drive, Durham, NC, 27710, USA
- Department of Veterans Affairs, National TeleOncology Program, Durham, NC, USA
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Jewell DE, Tavener SK, Creech R, Panickar KS. Betaine and L-Carnitine Synergistically Influence the Metabolome and Immune Response in Dogs. Animals (Basel) 2024; 14:357. [PMID: 38338001 PMCID: PMC10854714 DOI: 10.3390/ani14030357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 02/12/2024] Open
Abstract
This study used thirty-two dogs, which were assigned to a preferred period of 14 days and then assigned to one of the four treatment foods: control (containing no added betaine, no added L-carnitine), control with 0.5% added betaine (Treatment 2), control with no added betaine and 300 ppm added L-carnitine (Treatment 3), or control with 0.5% added betaine and 300 ppm added L-carnitine (Treatment 4). All treatment foods were fed for ninety days. Untargeted blood metabolomic analysis and immune response were measured at the beginning and end of the 90-day feeding trial. Feeding betaine increased single-carbon metabolites while decreasing many carnitine-containing metabolites. Feeding L-carnitine increased many carnitine metabolites, while the combination synergistically influenced the metabolome. The combination of betaine and L-carnitine increased the cytokines released in a Tru-culture system in response to stimulation while numerically decreasing their release when unstimulated. Therefore, the combination of dietary betaine and L-carnitine could have the dual positive effects of reducing cytokine stimulation, controlling inflammation during health, and providing a robust response to bacterial infection.
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Affiliation(s)
- Dennis E. Jewell
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506, USA
| | | | - Renea Creech
- Hill’s Pet Nutrition Inc., Overland Park, KS 66211, USA (K.S.P.)
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