Evidence map›Paper›PMID 26474181›Full record

Trial reportPloS one2015

Beneficial Effects of cART Initiated during Primary and Chronic HIV-1 Infection on Immunoglobulin-Expression of Memory B-Cell Subsets.

Manuela Pogliaghi, Marco Ripa, Simone Pensieroso, Monica Tolazzi, Stefania Chiappetta, Silvia Nozza, Adriano Lazzarin, Giuseppe Tambussi, Gabriella Scarlatti

Open access · goldAbstract readClinical TrialComparative Study
In one paragraph

Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.0field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Manuela PogliaghiUniversità Vita-Salute San Raffaele, Milan, Italy; Department of Infectious and Tropical Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Marco RipaUniversità Vita-Salute San Raffaele, Milan, Italy; Department of Infectious and Tropical Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Simone PensierosoViral Evolution and Transmission Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Monica TolazziViral Evolution and Transmission Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Stefania ChiappettaUniversità Vita-Salute San Raffaele, Milan, Italy; Department of Infectious and Tropical Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Silvia NozzaDepartment of Infectious and Tropical Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Adriano LazzarinUniversità Vita-Salute San Raffaele, Milan, Italy; Department of Infectious and Tropical Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Giuseppe TambussiDepartment of Infectious and Tropical Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
Gabriella ScarlattiViral Evolution and Transmission Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy.
IRCCS Ospedale San Raffaele · ITVita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDuring HIV-1 infection the B-cell compartment undergoes profound changes towards terminal differentiation, which are only partially restored by antiretroviral therapy (cART). MATERIALS AND

methodsTo investigate the impact of infection as early as during primary HIV-1 infection (PHI) we assessed distribution of B-cell subsets in 19 PHI and 25 chronic HIV-1-infected (CHI) individuals before and during 48 weeks of cART as compared to healthy controls (n = 23). We also analysed Immunoglobulin-expression of memory B-cell subsets to identify alterations in Immunoglobulin-maturation.

resultsDetermination of B-cell subsets at baseline showed that total and Naive B-cells were decreased whereas Activated Memory (AM), Tissue-like Memory (TLM) B-cells and Plasma cells were increased in both PHI and CHI patients. After 4 weeks of cART total B-cells increased, while AM, TLM B-cells and Plasma cells decreased, although without reaching normal levels in either group of individuals. This trend was maintained until week 48, though only total B-cells normalized in both PHI and CHI. Resting Memory (RM) B-cells were preserved since baseline. This subset remained stable in CHI, while was expanded by an early initiation of cART during PHI. Untreated CHI patients showed IgM-overexpression at the expenses of switched (IgM-IgD-) phenotypes of the memory subsets. Interestingly, in PHI patients a significant alteration of Immunoglobulin-expression was evident at BL in TLM cells, and after 4 weeks, despite treatment, in AM and RM subsets. After 48 weeks of therapy, Immunoglobulin-expression of AM and RM almost normalized, but remained perturbed in TLM cells in both groups.

conclusionsIn conclusion, aberrant activated and exhausted B-cell phenotypes rose already during PHI, while most of the alterations in Ig-expression seen in CHI appeared later, despite 4 weeks of effective cART. After 48 weeks of cART B-cell subsets distribution improved although without full normalization, while Immunoglobulin-expression normalized among AM and RM, remaining perturbed in TLM B-cells of PHI and CHI.

Indexed as

B-Lymphocyte SubsetsHIV-1HIV InfectionsPlasma CellsAdultAnti-Retroviral AgentsFemaleGene Expression RegulationHumansImmunoglobulin DImmunoglobulin MImmunologic MemoryMaleMiddle AgedTime FactorsAnti-Retroviral AgentsImmunoglobulin DImmunoglobulin M

Identifiers

PMID26474181
PMCPMC4608708
OpenAlexW2152437857

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.