Evidence map›Paper›PMID 26550142›Full record

ArticleInternational journal of clinical and experimental medicine2015

The study of energy metabolism in bladder cancer cells in co-culture conditions using a microfluidic chip.

Xiao-Dong Xu, Shi-Xiu Shao, Yan-Wei Cao, Xue-Cheng Yang, Hao-Qing Shi, You-Lin Wang, Sen-Yao Xue, Xin-Sheng Wang, Hai-Tao Niu

Abstract read
In one paragraph

Article in International journal of clinical and experimental medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

12 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review
  2. Article
  3. Use and application of organ-on-a-chip platforms in cancer research.Journal of cell communication and signaling · 2023
    Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Applications of Microfluidic Devices for Urology.International neurourology journal · 2017
    Review
  12. 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

9 authors at 3 institutions in 1 country.

Xiao-Dong XuDepartment of Urology, The Affiliated Hospital of Qingdao University, The Key Laboratory of Urology Qingdao, China.
Shi-Xiu ShaoDepartment of Urology, The Affiliated Hospital of Qingdao University, The Key Laboratory of Urology Qingdao, China.
Yan-Wei CaoDepartment of Urology, The Affiliated Hospital of Qingdao University, The Key Laboratory of Urology Qingdao, China.
Xue-Cheng YangDepartment of Urology, The Affiliated Hospital of Qingdao University, The Key Laboratory of Urology Qingdao, China.
Hao-Qing ShiDepartment of Urology, Shanghai Changhai Hospital, Second Military Medical University Shanghai, China.
You-Lin WangDepartment of Urology, Shanghai Institute of Andrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, China.
Sen-Yao XueDepartment of Urology, The Affiliated Hospital of Qingdao University, The Key Laboratory of Urology Qingdao, China.
Xin-Sheng WangDepartment of Urology, The Affiliated Hospital of Qingdao University, The Key Laboratory of Urology Qingdao, China.
Hai-Tao NiuDepartment of Urology, The Affiliated Hospital of Qingdao University, The Key Laboratory of Urology Qingdao, China.
Qingdao University · CNRenji Hospital · CNSecond Military Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aimed to systematically analyze changes in mitochondrial-related protein expression in bladder cancer cells and tumor-associated fibroblasts and to investigate the characteristics of bladder cancer cell energy metabolism.

methodsIn this study, we utilized the following techniques to achieve the objectives: (1) a co-culture system of bladder tumor cells and fibroblasts was built using a microfluidic chip as a three-dimensional culture system; (2) the concentration of lactic acid in the medium from the different groups was determined using an automatic micro-plate reader; (3) a qualitative analysis of mitochondria-related protein expression was performed by immunofluorescent staining; and (4) a quantitative analysis of mitochondrial-associated protein expression was conducted via Western blot. SPSS software was utilized to analyze the data.

results(1) Determination of lactic acid concentration: The lactic acid concentration was determined to be highest in the experimental group, followed by the T24 cell control group and then the fibroblast control group. (2) Qualitative results: In the control group, the mitochondrial-related protein fluorescence intensity was higher in the fibroblasts compared with the cancer cells, and the fluorescence intensity of the fibroblasts was reduced compared with the experimental group. The mitochondrial-related protein fluorescence intensity of the cancer cells was higher in the experimental group compared with the control group, and the opposite results were obtained with the fibroblasts. (3) Quantitative results: The expression of mitochondria-related proteins was higher in fibroblasts compared with cancer cells in the control group, and the opposite results were obtained in the experimental group (P<0.05). The expression of mitochondria-related proteins was increased in cancer cells in the experimental group compared with the control group; the opposite results were observed for the fibroblasts (P<0.05).

conclusionsThe energy metabolism of bladder tumor cells does not parallel the "Warburg effect" because even under sufficient oxygen conditions, cancer cells still undergo glycolysis. Bladder cancer cells also have an efficient oxidative phosphorylation process wherein cancer cells promote glycolysis in adjacent interstitial cells, thereby causing increased formation of nutritional precursors. These high-energy metabolites are transferred to adjacent tumor cells in a specified direction and enter the Krebs Cycle. Ultimately, oxidative phosphorylation increases, and sufficient ATP is produced.

Indexed as

Energy metabolismmicrofluidic chipthree-dimensional cell culturetumorigenesiswarburg effect

Identifiers

PMID26550142
PMCPMC4612827
OpenAlexW2196368666

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.