Evidence map›Paper›PMID 19700666›Full record

ArticleBlood2009

HIV-1 gp120-induced migration of dendritic cells is regulated by a novel kinase cascade involving Pyk2, p38 MAP kinase, and LSP1.

Appakkudal R Anand, Anil Prasad, Ritu R Bradley, Yadwinder S Deol, Tirumuru Nagaraja, Xianghui Ren, Ernest F Terwilliger, Ramesh K Ganju

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

24 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
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  4. LSP1-myosin1e bimolecular complex regulates focal adhesion dynamics and cell migration.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
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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

8 authors at 2 institutions in 1 country.

Appakkudal R AnandDepartment of Pathology, Ohio State University, Columbus, OH 43210, USA.
Anil Prasad
Ritu R Bradley
Yadwinder S Deol
Tirumuru Nagaraja
Xianghui Ren
Ernest F Terwilliger
Ramesh K Ganju
The Ohio State University · USBeth Israel Deaconess Medical Center · US

Funding

Role of Chemokine & T-Cell Receptors in HIV PathogenesisR01HL087576 · NHLBI · OHIO STATE UNIVERSITY · PI GANJU, RAMESH K. · 2006 to 2009
$1.7M
NHLBI NIH HHS HL087576NHLBI NIH HHS R01 HL087576
6 · The paper itself

Abstract

Targeting dendritic cell (DC) functions such as migration is a pivotal mechanism used by HIV-1 to disseminate within the host. The HIV-1 envelope protein is the most important of the virally encoded proteins that exploits the migratory capacity of DCs. In the present study, we elucidated the signaling machinery involved in migration of immature DCs (iDCs) in response to HIV-1 envelope protein. We observed that M-tropic HIV-1 glycoprotein 120 (gp120) induces phosphorylation of the nonreceptor tyrosine kinase, Pyk2. Inhibition of Pyk2 activity using a pharmacologic inhibitor, kinase-inactive Pyk2 mutant, and Pyk2-specific small interfering RNA blocked gp120-induced chemotaxis, confirming the role of Pyk2 in iDC migration. In addition, we also illustrated the importance of Pyk2 in iDC migration induced by virion-associated envelope protein, using aldithriol-2-inactivated M-tropic HIV-1 virus. Further analysis of the downstream signaling mechanisms involved in gp120-induced migration revealed that Pyk2 activates p38 mitogen-activated protein kinase, which in turn activates the F-actin-binding protein, leukocyte-specific protein 1, and enhances its association with actin. Taken together, our studies provide an insight into a novel gp120-mediated pathway that regulates DC chemotaxis and contributes to the dissemination of HIV-1 within an infected person.

Indexed as

Cell MovementBlotting, WesternChemotaxisDendritic CellsFlow CytometryFocal Adhesion Kinase 2HIV Envelope Protein gp120HumansMicrofilament Proteinsp38 Mitogen-Activated Protein KinasesPhosphorylationReceptors, CCR5Reverse Transcriptase Polymerase Chain ReactionRNA, MessengerRNA, Small InterferingTyrphostinsFocal Adhesion Kinase 2HIV Envelope Protein gp120LSP1 protein, humanMicrofilament Proteinsp38 Mitogen-Activated Protein KinasesReceptors, CCR5RNA, MessengerRNA, Small Interferingtyrphostin A9Tyrphostins

Identifiers

PMID19700666
PMCPMC2766677
OpenAlexW1986717719

What OpenQuestion holds

Textmetadata
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.