Evidence map›Paper›PMID 35789022›Full record

ArticleThe Prostate2022

Racial differences in circulating mitochondria-derived peptides may contribute to prostate cancer health disparities.

Adela Ramirez-Torres, Allison L Reagan, Lauren E Howard, Emily Wiggins, Adriana C Vidal, Junxiang Wan, Brendan Miller, Stephen J Freedland, Pinchas Cohen

Open access · greenAbstract read
In one paragraph

Article in The Prostate, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Mitochondrial-derived microproteins in lung disease: insights and implications.American journal of physiology. Lung cellular and molecular physiology · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 1 country.

Adela Ramirez-TorresDepartment of Surgery, Center for Integrated Research on Cancer and Lifestyle, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Allison L ReaganDepartment of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina, USA.
Lauren E HowardDepartment of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina, USA.
Emily WigginsDivision of Urology, Veterans Affairs Health Care System, VA Medical Center, Durham, North Carolina, USA.ORCID 0000-0002-3866-8589
Adriana C VidalDepartment of Surgery, Center for Integrated Research on Cancer and Lifestyle, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Junxiang WanLeonard Davis School of Gerontology, University of Southern California, Los Angeles, California, USA.
Brendan MillerLeonard Davis School of Gerontology, University of Southern California, Los Angeles, California, USA.
Stephen J FreedlandDepartment of Surgery, Center for Integrated Research on Cancer and Lifestyle, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.ORCID 0000-0002-8104-6419
Pinchas CohenLeonard Davis School of Gerontology, University of Southern California, Los Angeles, California, USA.
Cedars-Sinai Medical Center · USUniversity of Southern California · USDuke University · USVeterans Health Administration · US

Funding

Tissue Modeling & Drug Development Shared Resources CoreU54CA233444 · NCI · UNIVERSITY OF FLORIDA · PI PAUL OKUNIEFF · 2018 to 2026
$12.1M
Tissue Modeling CoreU54CA233465 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Bodour Salhia · 2018 to 2026
$11.9M
Ethnic-specific Effects of Mitochondrial DNA Variants and Environmental Factors on Cognitive Functioning and DementiaR01AG068405 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI COHEN, PINCHAS, CRIMMINS, EILEEN M · 2020 to 2024
$3.6M
Metformin-Regulated Mitochondrial Peptides and their Effects on AgingR01AG069698 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI COHEN, PINCHAS · 2020 to 2024
$2.1M
NCI NIH HHS U54 CA233444NCI NIH HHS U54 CA233465NIA NIH HHS R01 AG068405NIA NIH HHS R01 AG069698
6 · The paper itself

Abstract

introductionThe mitochondrial genome has small open reading frames (sORF) which produce measurable mitochondrial-derived peptides (MDPs), including humanin, SHLP2, and MOTS-c. Previously, among men undergoing prostate biopsy, we found higher serum SHLP2 was linked with lower prostate cancer (PC) risk in European American men (EAM), while null associations were found in African American men (AAM). Here, in different patients undergoing prostate biopsy, we tested the link between SHLP2, humanin and MOTS-c and PC risk by race.

methodsPlasma SHLP2, humanin, and MOTS-c were measured in 198 men (50/49 EAM/AAM cases; 50/49 EAM/AAM controls) undergoing biopsy. Logistic and multinomial regression models tested associations between each MDP and PC diagnosis, low-grade (grade group, GG1) and high-grade (GG2-5). Models were adjusted for age, body mass index, digital rectal examination, and prostate specific antigen (PSA). We tested interactions between MDPs and race.

resultsAmong controls, humanin was similar by race (p = 0.60), but both SHLP2 (p = 0.007) and MOTS-c (p = 0.026) were lower in AAM controls versus EAM controls. Among EAM, higher MDP values were associated with lower PC risk (all p ≤ 0.001), with null associations in AAM (all p-interactions ≤ 0.01). Similarly, higher MDP expression was associated with decreased risk of low- and high-grade PC in EAM (all p ≤ 0.005) with null associations in AAM.

conclusionsHigher MDP levels were associated with lower PC risk in EAM but not AAM. Generally, AAM controls had lower MDP levels. These data support MDPs and mitochondrial dysfunction in PC, suggesting greater dysfunction in AAM may contribute to excess PC risk. Future larger studies are needed to confirm these results.

Indexed as

Prostatic NeoplasmsHumansMaleMitochondriaPeptidesRace FactorsWhite PeoplePeptidesdisparitiesmitochondrial-derived peptides (MDPs)mitochondrial dysfunctionmitochondrial genomeprostate cancer

Identifiers

PMID35789022
PMCPMC9388542
OpenAlexW4283813994

What OpenQuestion holds

Textmetadata
LicenceTDM
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.