Evidence map›Paper›PMID 12381673›Full record

ArticleBritish journal of pharmacology2002

Extracellular zinc stimulates ERK-dependent activation of p21(Cip/WAF1) and inhibits proliferation of colorectal cancer cells.

Ki-Sook Park, Yongho Ahn, Jin-Ah Kim, Mi-Sun Yun, Baik L Seong, Kang-Yell Choi

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 59 citations in OpenAlex.

  1. Zinc, copper, copper-to-zinc ratio, and other biometals in blood serum and tumor tissue of patients with colorectal cancer.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
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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 1 institution in 1 country.

Ki-Sook ParkDepartment of Biotechnology, College of Engineering, Yonsei University, Seoul, 120-754 Korea.
Yongho Ahn
Jin-Ah Kim
Mi-Sun Yun
Baik L Seong
Kang-Yell Choi
Yonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zinc is an important trace element in the body and is involved in both the proliferation and growth arrest of many kinds of cells including colorectal epithelial cells. The aim of this study was to identify the molecular mechanism of the growth regulation of colorectal cancer cells by extracellular zinc. Zinc-stimulated activation of the mitogen-activated protein kinase (MAPK) cascade was measured by immunoblotting and Elk-1 dependent trans-reporter gene expression, and zinc-stimulated p21(Cip/WAF1) activation by immunoblotting, Northern blot analysis and immunochemistry. Cell proliferation was measured by thymidine and bromodeoxyuridine (BrdU) incorporation. By treating colorectal cancer cells with 100 microM ZnCl2, MAPKs were activated in two different phases, the initial weak activation occurred within 5 min and this was followed by a stronger and more prolonged activation. Zinc concomitantly activated Raf-1-MEK-MAPK kinases, and induced Elk-1 dependent trans-reporter gene expression. Prolonged activation of MAPKs by 100 microM of ZnCl2 resulted in the induction and nuclear localization of p21(Cip/WAF1) and was related to the inhibition of both thymidine and BrdU incorporations. These results not only suggest the presence of a mechanism for p21(Cip/WAF1) dependent negative regulation of colorectal cancer cell growth by zinc but also suggest potential usage of zinc to control the growth of colorectal cancer cells.

Indexed as

Cell DivisionChloridesColorectal NeoplasmsCyclin-Dependent Kinase Inhibitor p21CyclinsEnzyme ActivationExtracellular SpaceGrowth InhibitorsHT29 CellsHumansMitogen-Activated Protein KinasesRNA, MessengerZinc CompoundsCDKN1A protein, humanChloridesCyclin-Dependent Kinase Inhibitor p21CyclinsGrowth InhibitorsMitogen-Activated Protein KinasesRNA, Messengerzinc chlorideZinc Compounds

Identifiers

PMID12381673
PMCPMC1573531
OpenAlexW1993440278

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.