Abstract:
BACKGROUND:The immune system gradually deteriorates with age and nutritional status is a major factor in immunosenescence. Of the many nutritional factors implicated in age-related immune dysfunction, vitamin A may be a good candidate, since vitamin A concentrations classically decrease during aging whereas it may possess important immunomodulatory properties via its active metabolites, the retinoic acids. This prompted us to investigate the immune response induced by retinoids in adults and elderly healthy subjects. Before and after oral supplementation with 13cis retinoic acid (0.5 mg/kg/day during 28 days), whole blood cells were phenotyped, and functions of peripheral blood mononuclear cells (PBMC) and polymorphonuclear cells (PMN) were investigated by flow cytometry and ELISA tests. RESULTS:In both young adults (n = 20, 25 ± 4 years) and older subjects (n = 20, 65 ± 4 years), retinoic acid supplementation had no effect on the distribution of leukocyte subpopulations or on the functions of PBMC (Il-2 and sIl-2R production, membrane expression of CD25). Concerning PMN, retinoic acid induced an increase in both spontaneous migration and cell surface expression of CD11b in the two different age populations, whereas bactericidal activity and phagocytosis remained unchanged. CONCLUSIONS:We demonstrated that retinoic acid induces the same intensity of immune response between adult and older subjects, and more specifically affects PMN functions, i.e. adhesion and migration, than PBMC functions.
journal_name
Immun Ageingjournal_title
Immunity & ageing : I & Aauthors
Minet-Quinard R,Farges MC,Thivat E,Deleine C,Mayot G,Brtko J,Ribalta J,Winklhofer-Roob B,Rock E,Vasson MPdoi
10.1186/1742-4933-7-10subject
Has Abstractpub_date
2010-08-20 00:00:00pages
10issn
1742-4933pii
1742-4933-7-10journal_volume
7pub_type
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-016-0074-z
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abstract::In the brain, Oxidative Stress (OS) contribute to structural and functional changes associated with vascular aging, such as endothelial dysfunction, extracellular matrix degradation, resulting in age-related reduced vasodilatation in response to agonists. For this reason, OS is considered a key factor in Alzheimer's D...
journal_title:Immunity & ageing : I & A
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doi:10.1186/s12979-019-0147-x
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journal_title:Immunity & ageing : I & A
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
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abstract::[This corrects the article DOI: 10.1186/s12979-018-0122-y.]. ...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章,已发布勘误
doi:10.1186/s12979-018-0123-x
更新日期:2018-08-21 00:00:00
abstract:: Nonagenarians are the fastest growing sector of populations across Western European and the developed world. They are some of the oldest members of our societies and survivors of their generation and may help us understand how to age not only longer, but better.The Belfast Longevity Group enlisted the help of 500 com...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-7-6
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-020-00207-8
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journal_title:Immunity & ageing : I & A
pub_type: 社论
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章,评审
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journal_title:Immunity & ageing : I & A
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-016-0067-y
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
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更新日期:2020-12-21 00:00:00
abstract:BACKGROUND:Multiple myeloma (MM) is a neoplastic disorder of plasma cells interesting mainly the elderly. MM remains an incurable disease, mostly because of the strong interplay between clonal plasma cells (cPCs) and bone marrow (BM) microenvironment. Multiparameter flow cytometry (MFC) allows the simultaneous study of...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-015-0032-1
更新日期:2015-06-04 00:00:00
abstract:Background:Peripheral blood mononuclear cells (PBMCs) are implicated in the pathogenesis of age-related macular degeneration (AMD). We here mapped the global gene transcriptome of PBMCs from patients with different clinical subtypes of late AMD. Results:We sampled fresh venous blood from patients with geographic atrop...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-019-0160-0
更新日期:2019-08-15 00:00:00
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-018-0126-7
更新日期:2018-09-08 00:00:00
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-9-8
更新日期:2012-04-23 00:00:00
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-10-6
更新日期:2013-02-21 00:00:00
abstract:BACKGROUND:The aim of this study was to investigate the plasma levels of complement C3a, C4a, and C5a in different types of neovascular age-related macular degeneration (nAMD) and whether the levels were related to patients' responsiveness to anti-VEGF therapy. RESULTS:Ninety-six nAMD patients (including 61 with choro...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-016-0060-5
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-017-0100-9
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/s12979-015-0042-z
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章,评审
doi:10.1186/1742-4933-11-16
更新日期:2014-11-01 00:00:00
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-11-10
更新日期:2014-05-16 00:00:00
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journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-9-23
更新日期:2012-10-31 00:00:00
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journal_title:Immunity & ageing : I & A
pub_type:
doi:10.1186/s12979-016-0064-1
更新日期:2016-03-22 00:00:00
abstract:UNLABELLED: BACKGROUND:Respiratory Syncytial Virus (RSV) causes significant disease in the elderly, in part, because immunosenescence impairs protective immune responses to infection in this population. Despite previous and current efforts, there is no RSV vaccine currently licensed in infants or elderly adults. Adjuv...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-9-21
更新日期:2012-10-02 00:00:00
abstract::Concerning allergic diseases, the incidence of allergic symptoms, as well as their severity, seems to decrease with age. The decline of onset of allergic symptoms observed in ageing might result from a decrease of serum total and specific IgE. Atopic disorders are complex diseases that involve interactions among sever...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-2-9
更新日期:2005-05-31 00:00:00
abstract::Aging is associated with a decline in immune function (immunosenescence), a situation known to correlate with increased incidence of cancer, infectious and degenerative diseases. Innate, cellular and humoral immunity all exhibit increased deterioration with age. A decrease in functional competence of individual natura...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-2-17
更新日期:2005-11-29 00:00:00
abstract::Modulation of endogenous cellular defense mechanisms via the vitagene system represents an innovative approach to therapeutic intervention in diseases causing chronic tissue damage, such as in neurodegeneration. The possibility of high-throughoutput screening using proteomic techniques, particularly redox proteomics, ...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章,评审
doi:10.1186/s12979-015-0046-8
更新日期:2015-11-04 00:00:00
abstract::It is now commonly accepted that chronic inflammation associated with obesity during aging induces insulin resistance in the liver. In the present study, we investigated whether the improvement in insulin sensitivity and insulin signaling, mediated by acute exercise, could be associated with modulation of protein-tyro...
journal_title:Immunity & ageing : I & A
pub_type: 杂志文章
doi:10.1186/1742-4933-10-8
更新日期:2013-02-25 00:00:00