Evidence map›Paper›PMID 33990700›Full record

ArticleOncogene2021

The loss of SHMT2 mediates 5-fluorouracil chemoresistance in colorectal cancer by upregulating autophagy.

Jian Chen, Risi Na, Chao Xiao, Xiao Wang, Yupeng Wang, Dongwang Yan, Guohe Song, Xueni Liu, Jiayi Chen, Huijun Lu and 5 more

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.7field-weighted citation impact, top 5% 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

36 citing papers in PubMed, 58 citations in OpenAlex.

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  14. CLDN6 induces chemoresistance through protective autophagy in breast cancer.International journal of biological sciences · 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

15 authors at 5 institutions in 1 country.

Jian Chen *Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tong Ji University, Shanghai, China.
Risi Na *Department of General Surgery, Xiang An Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.
Chao Xiao *Department of General Surgery, Hua Shan Hospital, School of Medicine, Fu Dan University, Shanghai, China.ORCID http://orcid.org/0000-0003-3722-1512
Xiao Wang *Department of Gastrointestinal Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China.
Yupeng WangDepartment of General Surgery, Zhong Shan Hospital, School of Medicine, Fu Dan University, Shanghai, China.
Dongwang YanTranslational Medicine Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Guohe SongDepartment of General Surgery, Zhong Shan Hospital, School of Medicine, Fu Dan University, Shanghai, China.
Xueni LiuTranslational Medicine Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Jiayi ChenTranslational Medicine Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Huijun LuDepartment of Pathology, Guigang City People's Hospital, Guigang, Guangxi, China.
Chunyan ChenDepartment of Pathology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
Huamei TangDepartment of General Surgery, Xiang An Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China. tanghuamei2014@163.com.
Guohong ZhuangOrgan Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, China. zhgh@xmu.edu.cn.ORCID http://orcid.org/0000-0001-9653-627X
Guangjian FanTranslational Medicine Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. ytfan@126.com.ORCID http://orcid.org/0000-0003-0684-1380
Zhihai PengDepartment of General Surgery, Xiang An Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China. pengzhihai1958@163.com.ORCID http://orcid.org/0000-0001-8202-4281
Shanghai Jiao Tong University · CNXiamen University · CNFudan University · CNGuigang City People's Hospital · CNSun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

5-Fluorouracil (5-FU)-based chemotherapy is the first-line treatment for colorectal cancer (CRC) but is hampered by chemoresistance. Despite its impact on patient survival, the mechanism underlying chemoresistance against 5-FU remains poorly understood. Here, we identified serine hydroxymethyltransferase-2 (SHMT2) as a critical regulator of 5-FU chemoresistance in CRC. SHMT2 inhibits autophagy by binding cytosolic p53 instead of metabolism. SHMT2 prevents cytosolic p53 degradation by inhibiting the binding of p53 and HDM2. Under 5-FU treatment, SHMT2 depletion promotes autophagy and inhibits apoptosis. Autophagy inhibitors decrease low SHMT2-induced 5-FU resistance in vitro and in vivo. Finally, the lethality of 5-FU treatment to CRC cells was enhanced by treatment with the autophagy inhibitor chloroquine in patient-derived and CRC cell xenograft models. Taken together, our findings indicate that autophagy induced by low SHMT2 levels mediates 5-FU resistance in CRC. These results reveal the SHMT2-p53 interaction as a novel therapeutic target and provide a potential opportunity to reduce chemoresistance.

Indexed as

AnimalsAntimalarialsAntimetabolites, AntineoplasticApoptosisAutophagyCell Line, TumorCell ProliferationChloroquineColorectal NeoplasmsDrug Resistance, NeoplasmFemaleFluorouracilGlycine HydroxymethyltransferaseHumansMiceMice, Inbred BALB CAntimalarialsAntimetabolites, AntineoplasticChloroquineFluorouracilGlycine HydroxymethyltransferaseSHMT protein, human

Identifiers

PMID33990700
PMCPMC8195740
OpenAlexW3160233334

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.