Establishment of an ex vivo model of monocytes-derived macrophages differentiated from peripheral blood mononuclear cells (PBMCs) from HIV-1 transgenic rats

2004 ◽  
Vol 41 (10) ◽  
pp. 979-984 ◽  
Author(s):  
Renata Mazzucchelli ◽  
Marialaura Amadio ◽  
Sabrina Curreli ◽  
Frank Denaro ◽  
Kristi Bemis ◽  
...  
Keyword(s):  
Peripheral Blood Mononuclear Cells ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Ex Vivo ◽  
Transgenic Rats ◽  
Ex Vivo Model ◽  
Peripheral Blood Mononuclear ◽  
Blood Mononuclear Cells ◽  
Hiv 1

scholarly journals Function of ex vivo stimulated Natural killer T cells from patients with chronic HIV-1 infection

2019 ◽  
Author(s):  
Prakash Thapa ◽  
Pramod Nehete ◽  
Hong He ◽  
Bharti Nehete ◽  
Stephanie J. Buchl ◽  
...  
Keyword(s):  
Natural Killer ◽  
Peripheral Blood Mononuclear Cells ◽  
Immune Cells ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Ex Vivo ◽  
Nkt Cells ◽  
Peripheral Blood Mononuclear ◽  
Blood Mononuclear Cells ◽  
Hiv 1

AbstractNatural killer T (NKT) cells are innate immune cells that are responsible for the first line of antiviral defense, through crosstalk with downstream antigen-presenting cells, natural killer cells, and adaptive immune cells. Previous studies have indicated that NKT cell function is severely impaired in patients with chronic HIV-1 infection. It was reported that alpha-galactosylceramide, a potent agonist antigen for NKT cells, failed to trigger the expansion of NKT cells, or the production of anti-viral cytokines by NKT cells from HIV-1 infected patients in an in vitro assay, in which peripheral blood mononuclear cells (PBMCs) were cultured in the presence of alpha-galactosylceramide. In this study, we stimulated banked peripheral blood mononuclear cells from HIV-1-infected patients with dendritic cells (DC) generated ex vivo and loaded with alpha-galactosylceramide. The results showed that NKT cells were expanded in HIV infected subjects except in patients with advanced AIDS. Expanded NKT cells were capable of producing antiviral cytokines. Our results indicate that NKT cells in HIV infected individuals are potential targets for therapeutic intervention.

Evidence for late stage compartmentalization of HIV-1 resistance mutations between lymph node and peripheral blood mononuclear cells

AIDS ◽  
2000 ◽  
Vol 14 (15) ◽  
pp. 2273-2281 ◽  
Author(s):  
Da' N. Haddad ◽  
Christopher Birch ◽  
Tracy Middleton ◽  
Dominic E. Dwyer ◽  
Anthony L. Cunningham ◽  
...  
Keyword(s):  
Lymph Node ◽  
Peripheral Blood Mononuclear Cells ◽  
Late Stage ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Resistance Mutations ◽  
Peripheral Blood Mononuclear ◽  
Blood Mononuclear Cells ◽  
Hiv 1

Probiotic supplement consumption alters cytokine production from peripheral blood mononuclear cells: a preliminary study using healthy individuals

2013 ◽  
Vol 4 (4) ◽  
pp. 313-317 ◽  
Author(s):  
N.J. Hepburn ◽  
I. Garaiova ◽  
E.A. Williams ◽  
D.R. Michael ◽  
S. Plummer
Keyword(s):  
Peripheral Blood Mononuclear Cells ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Cytokine Production ◽  
Ex Vivo ◽  
Healthy Individuals ◽  
Probiotic Supplementation ◽  
Peripheral Blood Mononuclear ◽  
Blood Mononuclear Cells ◽  
Preliminary Study

The objective of this study was to examine the effect of daily probiotic supplementation upon the immune profile of healthy participants by the assessment of ex vivo cytokine production. Twenty healthy adult volunteers received a multi-strain probiotic supplement consisting of two strains of Lactobacillus acidophilus (CUL60 and CUL21), Bifidobacterium lactis (CUL34) and Bifidobacterium bifidum (CUL20) and fructooligosaccharide for 12 weeks. Blood samples were collected at baseline, 6 and 12 weeks. Peripheral blood mononuclear cells (PBMCs) were isolated and cultured ex vivo in the presence or absence of lipopolysaccharide and cytokine production was assessed. Postintervention, a significant decrease in the production of interleukin-6 and interleukin-1β was apparent when PBMCs were incubated in the presence of lipopolysaccharide, whilst a significant increase in IL-10 and transforning growth factor-β production was seen when the cells were incubated without an additional stimulus. This preliminary study demonstrates the potential of a multi-strain probiotic supplement to alter the immune response as demonstrated by changes in ex vivo cytokine production. Such results demonstrate the potential benefit of probiotic supplementation for healthy individuals and warrants further investigation.

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