Evidence map›Paper›PMID 33794800›Full record

ArticleBMC geriatrics2021

ABT-263 enhanced bacterial phagocytosis of macrophages in aged mouse through Beclin-1-dependent autophagy.

Yu Zhang, Li-Hua Tang, Jia Lu, Li-Ming Xu, Bao-Li Cheng, Jun-Yu Xiong

Open access · goldAbstract read
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Yu Zhang *Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
Li-Hua Tang *Department of Anesthesiology, The Second Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, ZIP: 116027, Liaoning, China.
Jia LuDepartment of Anesthesiology, The Second Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, ZIP: 116027, Liaoning, China.
Li-Ming XuResearch Center, The Second Hospital of Dalian Medical University, Dalian, China.
Bao-Li ChengDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
Jun-Yu XiongDepartment of Anesthesiology, The Second Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, ZIP: 116027, Liaoning, China. jyxiong0639@163.com.
Second Affiliated Hospital of Dalian Medical University · CNZhejiang University · CNDalian Medical University · CN

Funding

Major Research Plan 8197081035
6 · The paper itself

Abstract

backgroundSepsis is a critical challenge for the older adults as the immune function is less responsive by aging. Although cell numbers seem preserved in the older adults, macrophages present age-related function decline, which including reduced chemokines, phagocytosis, and autophagy. ABT-263, an inhibitor of the anti-apoptotic protein Bcl-2, is reported had a senolytic effect which can selectively clear the senescent cells in vivo and rejuvenate the aged tissues.

methodsWe treated the aged (12-16 months) and young (4-6 months) C57BL/6 mouse with ABT-263, then gave the animals cecal slurry injection to induce sepsis to observe the effect of senolytic compound ABT-263 on the survival rate of sepsis. Additionally, we isolated peritoneal macrophages from the aged mouse to investigate the cell function and molecular mechanism. 3-methyladenine (3-MA), a phosphatidylinositol 3-kinases (PI3K) inhibitor, and rapamycin, an autophagy-enhancer, were used to block or mimic the autophagy, respectively. RT-PCR and Western Blot were used to detect autophagy related gene and protein changes in sepsis. EGFP-expressing E. coli was used as a marker to evaluate the phagocytic ability of macrophages.

resultsThe results showed ABT-263 treatment improved the survival rate of sepsis in the aged mouse which related to autophagy, while blocking the autophagy can eliminate this effect. It is revealed that ABT-263 enhanced the phagocytic ability of the peritoneal macrophages by increasing the Trem-2 receptor. Additionally, ABT-263 blocked the binding of Bcl-2 to Beclin-1, thus induced Beclin-1-dependent autophagy.

conclusionABT-263 enhanced the macrophage function in aged mouse by increasing the Trem-2 receptors and inducing a beclin-1-dependent autophagy, consequently, protected the aged mouse from sepsis.

Indexed as

Escherichia coliPhosphatidylinositol 3-KinasesAgedAniline CompoundsAnimalsAutophagyBeclin-1HumansMacrophagesMiceMice, Inbred C57BLPhagocytosisSulfonamidesAniline CompoundsBeclin-1navitoclaxPhosphatidylinositol 3-KinasesSulfonamidesAutophagyMacrophagePhagocytosisSenescenceSepsis

Identifiers

PMID33794800
PMCPMC8017763
OpenAlexW3138444226

What OpenQuestion holds

Textmetadata
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.