Evidence map›Paper›PMID 31417010›Full record

ArticleAsian journal of andrology

Upregulation of erythropoietin and erythropoietin receptor in castration-resistant progression of prostate cancer.

Chen Ye, Guang-Hua Chen, Xin Chen, Sheng-Fei Qin, Min-Feng Shi, Tie Zhou

Open access · goldAbstract read
In one paragraph

Article in Asian journal of andrology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Pan-Cancer Analysis Based onFrontiers in oncology · 2022
    Article
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.

Chen YeDepartment of Urology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
Guang-Hua ChenDepartment of Urology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
Xin ChenDepartment of Urology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
Sheng-Fei QinDepartment of Urology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
Min-Feng ShiReproductive Center, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
Tie ZhouDepartment of Urology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
Changhai Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypoxia-induced erythropoietin signaling plays an important role in tumor growth and invasion. In the present study, we investigated the contribution of erythropoietin signaling pathway to castration-resistant prostate cancer and the development of a neuroendocrine phenotype. Immunohistochemical staining showed that the erythropoietin and erythropoietin receptor scores in castration-resistant prostate cancer and androgen-dependent prostate cancer were 7.55 versus 4.5 and 7.45 versus 5.9,respectively (P < 0.001). Furthermore, a cell proliferation assay was conducted, and the differential expression of erythropoietin and erythropoietin receptor in LNCaP cells and hypoxia-induced LNCaP cells was evaluated using western blot and quantitative real-time PCR. The proliferation capacity of hypoxia-induced LNCaP cells was similar in cultures of both fetal bovine serum and charcoal-stripped fetal bovine serum, suggesting that LNCaP cells acquired hypoxia-induced androgen-independent growth. After 2 weeks of hypoxic culture, LNCaP cells showed a neuroendocrine cell change and increased expression of neuron-specific enolase, erythropoietin, and erythropoietin receptor; knockdown of erythropoietin receptor reversed the hypoxia-induced upregulation of neuron-specific enolase in the LNCaP cells. In conclusion, the concurrent upregulation of erythropoietin and erythropoietin receptor in castration-resistant prostate cancer suggests that the erythropoietin/erythropoietin receptor autocrine loop plays an important role in the progression of castration resistance and is responsible for the development of a neuroendocrine phenotype.

Indexed as

AgedBlotting, WesternCarcinomaCell Line, TumorCell ProliferationErythropoietinHumansImmunohistochemistryMaleMiddle AgedProstatic NeoplasmsProstatic Neoplasms, Castration-ResistantReceptors, ErythropoietinReverse Transcriptase Polymerase Chain ReactionSignal TransductionTumor HypoxiaErythropoietinReceptors, Erythropoietinerythropoietinerythropoietin receptorhypoxiaprostatic neoplasm

Identifiers

PMID31417010
PMCPMC7406089
OpenAlexW2968337186

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.