The aged microenvironment impairs BCL6 and CD40L induction in CD4+ T follicular helper cell differentiation

JS Fisher, I Adán‐Barrientos, NR Kumar… - Aging …, 2024 - Wiley Online Library
Weakened germinal center responses by the aged immune system result in diminished
immunity against pathogens and reduced efficacy of vaccines. Prolonged contacts between …

[HTML][HTML] Leukocyte telomere length, T cell composition and DNA methylation age

BH Chen, CL Carty, M Kimura, JD Kark, W Chen… - Aging (Albany …, 2017 - ncbi.nlm.nih.gov
Both leukocyte telomere length (LTL) and DNA methylation age are strongly associated with
chronological age. One measure of DNA methylation age-the extrinsic epigenetic age …

Aging-associated immunosenescence via alterations in splenic immune cell populations in rat

NI El-Naseery, HSE Mousa, AE Noreldin, H Ali… - Life sciences, 2020 - Elsevier
Aim Immunosenescence is the decline of the host immune system due to aging, resulting in
various complications. The splenic lymphoid nodule is the pivotal compartment involved in …

Pancreas transplantation in older patients is safe, but patient selection is paramount

JR Scalea, RR Redfield III, E Arpali… - Transplant …, 2016 - Wiley Online Library
Pancreas transplant outcomes have progressively improved. Despite this, some centers
have continued to employ historical age limits for pancreas transplant candidates. We …

Depletion of preexisting B‐cell lymphoma 2‐expressing senescent cells before vaccination impacts antigen‐specific antitumor immune responses in old mice

O Cobanoglu, L Delval, D Ferrari, L Deruyter… - Aging cell, 2023 - Wiley Online Library
The age‐related decline in immunity reduces the effectiveness of vaccines in older adults.
Immunosenescence is associated with chronic, low‐grade inflammation, and the …

Central tolerance is impaired in the middle‐aged thymic environment

JN Lancaster, DE Keatinge‐Clay, J Srinivasan, Y Li… - Aging …, 2022 - Wiley Online Library
One of the earliest hallmarks of immune aging is thymus involution, which not only reduces
the number of newly generated and exported T cells, but also alters the composition and …

Aging is accompanied by T‐cell stiffening and reduced interstitial migration through dysfunctional nuclear organization

B González‐Bermúdez, H Kobayashi… - …, 2022 - Wiley Online Library
Age‐associated changes in T‐cell function play a central role in immunosenescence. The
role of aging in the decreased T‐cell repertoire, primarily because of thymic involution, has …

Conventional treatment for multiple myeloma drives premature aging phenotypes and metabolic dysfunction in T cells

RE Cooke, KM Quinn, H Quach, S Harrison… - Frontiers in …, 2020 - frontiersin.org
New diagnoses of multiple myeloma (MM) tend to occur after the age of 60, by which time
thymic output is severely reduced. As a consequence, lymphocyte recovery after …

Immune response to COVID-19 in older adults

M Jergović, CP Coplen, JL Uhrlaub… - The Journal of Heart and …, 2021 - Elsevier
The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is the third highly
pathogenic coronavirus to emerge in the human population in last two decades. SARS-CoV …

Age-related decline of de novo T cell responsiveness as a cause of COVID-19 severity

F Nicoli, MT Solis-Soto, D Paudel, P Marconi, R Gavioli… - Geroscience, 2020 - Springer
To the Editor, So far, little attention has been paid to the link between immunosenescence
and the dramatic mortality rate of coronavirus disease 2019 (COVID-19) in older age groups …