Evidence map›Paper›PMID 22388073›Full record

ArticleActa pharmacologica Sinica2012

Piperine suppresses tumor growth and metastasis in vitro and in vivo in a 4T1 murine breast cancer model.

Li-hua Lai, Qi-hong Fu, Yang Liu, Kai Jiang, Qing-ming Guo, Qing-yun Chen, Bin Yan, Qing-qing Wang, Jian-gen Shen

Open access · bronzeAbstract read
In one paragraph

Article in Acta pharmacologica Sinica, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
13.3field-weighted citation impact, top 1% 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

70 citing papers in PubMed, 221 citations in OpenAlex.

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10 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Li-hua LaiInstitute of Immunology, Zhejiang University School of Medicine, Hangzhou, China.
Qi-hong Fu
Yang Liu
Kai Jiang
Qing-ming Guo
Qing-yun Chen
Bin Yan
Qing-qing Wang
Jian-gen Shen
Zhejiang University · CNHangzhou Normal University · CNNingbo First Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo investigate the effects of piperine, a major pungent alkaloid present in Piper nigrum and Piper longum, on the tumor growth and metastasis of mouse 4T1 mammary carcinoma in vitro and in vivo, and elucidate the underlying mechanisms.

methodsGrowth of 4T1 cells was assessed using MTT assay. Apoptosis and cell cycle of 4T1 cells were evaluated with flow cytometry, and the related proteins were examined using Western blotting. Real-time quantitative PCR was applied to detect the expression of matrix metalloproteinases (MMPs). A highly malignant, spontaneously metastasizing 4T1 mouse mammary carcinoma model was used to evaluate the in vivo antitumor activity. Piperine was injected into tumors every 3 d for 3 times.

resultsPiperine (35-280 μmol/L) inhibited the growth of 4T1 cells in time- and dose-dependent manners (the IC(50) values were 105 ± 1.08 and 78.52 ± 1.06 μmol/L, respectively, at 48 and 72 h). Treatment of 4T1 cells with piperine (70-280 μmol/L) dose-dependently induced apoptosis of 4T1 cells, accompanying activation of caspase 3. The cells treated with piperine (140 and 280 μmol/L) significantly increased the percentage of cells in G(2)/M phase with a reduction in the expression of cyclin B1. Piperine (140 and 280 μmol/L) significantly decreased the expression of MMP-9 and MMP-13, and inhibited 4T1 cell migration in vitro. Injection of piperine (2.5 and 5 mg/kg) dose-dependently suppressed the primary 4T1 tumor growth and injection of piperine (5 mg/kg) significantly inhibited the lung metastasis.

conclusionThese results demonstrated that piperine is an effective antitumor compound in vitro and in vivo, and has the potential to be developed as a new anticancer drug.

Indexed as

AlkaloidsAnimalsAntineoplastic Agents, PhytogenicBenzodioxolesBreastBreast NeoplasmsCell Line, TumorFemaleGene Expression Regulation, NeoplasticMammary Neoplasms, ExperimentalMatrix Metalloproteinase 13Matrix Metalloproteinase 9MiceMice, Inbred BALB CNeoplasm MetastasisPiperAlkaloidsAntineoplastic Agents, PhytogenicBenzodioxolesMatrix Metalloproteinase 13Matrix Metalloproteinase 9PiperidinespiperinePolyunsaturated Alkamides

Identifiers

PMID22388073
PMCPMC4003369
OpenAlexW2009098686

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.