Is HIV Infection Associated With Accelerated...
Transcript of Is HIV Infection Associated With Accelerated...
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
Is HIV Infection Associated With Accelerated Aging?
Timothy Schacker, M.D. University of Minnesota
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
“The trouble with words is that they have meaning”
Mike Saag
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•Progeria •Werner’s syndrome •Down’s syndrome
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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•Progeria •Werner’s syndrome •Down’s syndrome •HIV?
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Lifespan 10 years less
Adapted from Lohse N, et al. Ann Intern Med 2007;146:87–95
Prob
abili
ty o
f Sur
viva
l
Pre-HAART (1995–1996)
Early HAART (1997–1999)
Survival from Age 25 Years N= 3,990
1
0.75
0.5
0.25
0
25 30 35 40 45 50 55 60 65 70
Age, years
Late HAART (2000–2005)
Population controls
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
< 100
100-200
>200
Life expectancy, years (at age 20)
32 42 50
CD4 Nadir
ART-Cohort Collaboration. Lancet. 2008;372:293-299
Nadir CD4 predicts life expectancy with ART
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AIDS Patients Face Downside of Living Longer
59-year-old man with long h/o HIV disease, now with long-
term viral suppression on HAART, but suffers from
osteoporosis, “frailty” and several chronic illnesses, and feels less robust than 84-year-
old father
Gross G. NY Times. Jan 6, 2008. Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Immune Response to cART by Age
Althoff KN et al. AIDS 2010 24:2469-2479
Age (yrs) Adjusted Hazard OR 18-<30 ref
30-<40 0.92 (0.85, 1.00) 40-<50 0.85 (0.78, 0.92) 50-<60 0.74 (0.65, 0.85)
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Lymphoid CD4 populations do not reconstitute with ART
Schacker, et al. JID, 2002 Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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CD4+ T cell subsets in LT were counted as described, and the mean body totals ± 1 SD (indicated by I) from Tables 1 and 2 are shown for uninfected and infected individuals before and after 3 weeks, 6 months,
and 12–14 months of triple antiretroviral therapy.
Zhang Z et al. PNAS 1998;95:1154-1159
©1998 by The National Academy of Sciences Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
HIV negative HIV positive
HIV is a disease of immune activation
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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ART-suppressed Patients Have Persistently Abnormal T Cell Activation
Hunt et al, JID, 2003 and 2008 Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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BB1791, HIV+ on ART and fully suppressed for 13 years
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Mucosal Translocation of Bacterial Products
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Decreasing Asymptomatic CMV Replication with Valganciclovir Decreases Immune Activation
in HIV+ Patients with CD4<350 despite ART
-4.4%
HIV- Median
Hunt et al, CROI, 2010 Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Supplemental Figure 1. Viral Replication Other Infections Microbial Translocation
Inflammation
Immune Activation
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
TGFß, TNF, IFN,
IL-6
Adapted from Libby, AJM, 2008
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Supplemental Figure 1. Viral Replication Other Infections Microbial Translocation
Inflammation
Immune Activation cytokine production
•CNS disease •Coagulopathy •bone loss •lipid abnormalities •endocrine diseases
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Lymph Node FRC Network
HIV - HIV +
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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IL-7 expression in lymph node correlates to loss of FRCn
Zeng, et al., JI, 2011
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Increase in Naive T Cell Apoptosis
p < 0.0001
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Percent Area Collagen
Nai
ve C
D4+
T C
ell P
opul
atio
n (µ
2 )
Schacker, et al, JVI, 2006
LT Fibrosis is Associated With Depletion of the Naive CD4+ T Cells
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Supplemental Figure 1. Viral Replication Other Infections Microbial Translocation
Inflammation
Immune Activation cytokine production
•CNS disease •coagulopathy •skeletal abnormalities •bone loss •lipid abnormalities •endocrine diseases
ongoing T cell loss impaired immune reconstitution
Tissue Damage
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
Viral replication in Thymus
Haynes, JCI, 1999
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
80 60 40 20 0
Age
TRE
C p
er
g D
NA
100
1000
10000
100000
Thymus output decreases with age
Douek, J Immunol, 2001, 167: 6663
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
Thymic output in HIV+ vs HIV - individuals matched for age
Douek, J Immunol, 2001, 167: 6663 Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
Thymic epithelial vs perivascular space during normal aging
Haynes, Ann Rev Immunol, 2000, 18: 529
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
Haynes, Ann Rev Immunol, 2000, 18: 529
Morphologic changes of human thymus in early and late stage HIV infection
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Supplemental Figure 1. Viral Replication Other Infections Microbial Translocation
Inflammation
Immune Activation cytokine production
•CNS disease •coagulopathy •skeletal abnormalities •bone loss •lipid abnormalities •endocrine diseases
ongoing (naive) T cell loss impaired immune reconstitution
Lymphoid Tissue Damage Thymic involution
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
Immunosenescence
•diminished capacity to replenish lymphocytes •shortened telomeres on lymphocytes •fewer phagocytes with less function •impaired NK function •fewer DC’s with less function •fewer B cells with less Ig diversity •reduced T cell repertorie •impaired proliferative capacity •increase in inflammatory cytokines
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Is HIV Infection Associated With Accelerated Aging?
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA
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40
With a nod to Mike Saag
Presented at the 2nd Int. workshop on HIV & Aging, 27 – 28 Oct 2011, Baltimore, USA