Evidence map›Paper›PMID 34659884›Full record

ArticleAmerican journal of cancer research2021

Obesity-associated leptin promotes chemoresistance in colorectal cancer through YAP-dependent AXL upregulation.

Ying-Chen Chen, Chu-Yen Chien, Chia-Chen Hsu, Chien-Hsing Lee, Yu-Ting Chou, Shine-Gwo Shiah, Shyun-Yeu Liu, Ching-Yu Yen, Alexander Cheng-Ting Hsieh, Martin Wabitsch and 1 more

Open access · greenAbstract read
In one paragraph

Article in American journal of cancer research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

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

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. [Obesity and Colorectal Cancer].The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi · 2023
    Review
  13. Review
  14. GAS6/Axl is associated with AMPK activation and attenuates HApoptosis : an international journal on programmed cell death · 2023
    Article
  15. The Potential Chemopreventive Effect ofInternational journal of molecular sciences · 2023
    Article
  16. Article
  17. Insulin and cancer: a tangled web.The Biochemical journal · 2022
    Review
  18. Review
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

11 authors at 3 institutions in 1 country.

Ying-Chen ChenMolecular and Cell Biology, Taiwan International Graduate Program, Academia Sinica and Graduate Institute of Life Science, National Defense Medical Center Taipei 114201, Taiwan.
Chu-Yen ChienGraduate Institute of Medical Sciences, National Defense Medical Center Taipei 114201, Taiwan.
Chia-Chen HsuGraduate Institute of Medical Sciences, National Defense Medical Center Taipei 114201, Taiwan.
Chien-Hsing LeeDepartment and Graduate Institute of Biochemistry, National Defense Medical Center Taipei 114201, Taiwan.
Yu-Ting ChouInstitute of Biotechnology, National Tsing Hua University Hsinchu 300044, Taiwan.
Shine-Gwo ShiahNational Institute of Cancer Research, National Health Research Institutes Miaoli 350, Taiwan.
Shyun-Yeu LiuDepartment of Oral and Maxillofacial Surgery, Chi Mei Medical Center Tainan 71004, Taiwan.
Ching-Yu YenDepartment of Oral and Maxillofacial Surgery, Chi Mei Medical Center Tainan 71004, Taiwan.
Alexander Cheng-Ting HsiehSchool of Traditional Chinese Medicine, Chang Gung University Taoyuan 33302, Taiwan.
Martin WabitschDepartment of Pediatrics and Adolescent Medicine, Division of Pediatric Endocrinology and Diabetes, Centre for Hormonal Disorders in Children and Adolescents, Ulm University Hospital Ulm 89081, Germany.
Yi-Shing ShiehMolecular and Cell Biology, Taiwan International Graduate Program, Academia Sinica and Graduate Institute of Life Science, National Defense Medical Center Taipei 114201, Taiwan.
Chang Gung University · TWNational Health Research Institutes · TWNational Tsing Hua University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obesity results from an imbalance between caloric intake and energy expenditure, and it is highly associated with colorectal carcinogenesis and therapeutic resistance in patients with colorectal cancer (CRC). Dysregulation of adipokine production in obesity has been reported to cause malignant behaviors in CRC. Leptin, which is the principal hormone secreted by adipocytes and an obesity-associated adipokine, is significantly overexpressed in CRC tissues. However, the effect of leptin on chemoresistance in CRC is unclear. Therefore, the aim of this study was to clarify the role of leptin and the underlying mechanisms in mediating 5-fluorouracil (5-FU) resistance in CRC. We used palmitate to artificially generate obese adipocytes. As expected, lipid accumulation was significantly increased in obese adipocytes. We demonstrated that CRC cells incubated with conditioned media (CM) harvested from obese adipocytes were associated with increased resistance to 5-FU. Notably, this increase in resistance to 5-FU was through the elevated production and secretion of leptin. Leptin could further stimulate the expression of AXL and activate its downstream signaling molecule, PLCγ, thereby resulting in an increased expression of p-glycoprotein (P-gp) in CRC cells. Mechanistically, leptin induced AXL expression via the inhibition of AMPK and subsequent increase in YAP activation and nuclear translocation. In addition, nuclear YAP interacted with TEAD and promoted the occupancy of TEAD on the AXL promoter, thereby stimulating AXL promoter activity after leptin treatment. Furthermore, leptin neutralization rescued the sensitivity of CRC tumors to 5-FU in mice fed on a high-fat diet (HFD). These results indicated that leptin mediated 5-FU resistance through YAP-dependent AXL overexpression in CRC.

Indexed as

Chemoresistancecolorectal cancerobesityoncogenereceptor tyrosine kinase

Identifiers

PMID34659884
PMCPMC8493400
OpenAlexW3205174435

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.