Impact of Oncogenic Targets by Tumor-Suppressive miR-139-5p and miR-139-3p Regulation in Head and Neck Squamous Cell Carcinoma

We newly generated an RNA-sequencing-based microRNA (miRNA) expression signature of head and neck squamous cell carcinoma (HNSCC). Analysis of the signature revealed that both strands of some miRNAs, including miR-139-5p (the guide strand) and miR-139-3p (the passenger strand) of miR-139, were downr...

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Veröffentlicht in:International journal of molecular sciences 2021-09, Vol.22 (18), p.9947, Article 9947
Hauptverfasser: Koma, Ayaka, Asai, Shunichi, Minemura, Chikashi, Oshima, Sachi, Kinoshita, Takashi, Kikkawa, Naoko, Koshizuka, Keiichi, Moriya, Shogo, Kasamatsu, Atsushi, Hanazawa, Toyoyuki, Uzawa, Katsuhiro, Seki, Naohiko
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container_issue 18
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container_title International journal of molecular sciences
container_volume 22
creator Koma, Ayaka
Asai, Shunichi
Minemura, Chikashi
Oshima, Sachi
Kinoshita, Takashi
Kikkawa, Naoko
Koshizuka, Keiichi
Moriya, Shogo
Kasamatsu, Atsushi
Hanazawa, Toyoyuki
Uzawa, Katsuhiro
Seki, Naohiko
description We newly generated an RNA-sequencing-based microRNA (miRNA) expression signature of head and neck squamous cell carcinoma (HNSCC). Analysis of the signature revealed that both strands of some miRNAs, including miR-139-5p (the guide strand) and miR-139-3p (the passenger strand) of miR-139, were downregulated in HNSCC tissues. Analysis of The Cancer Genome Atlas confirmed the low expression levels of miR-139 in HNSCC. Ectopic expression of these miRNAs attenuated the characteristics of cancer cell aggressiveness (e.g., cell proliferation, migration, and invasion). Our in silico analyses revealed a total of 28 putative targets regulated by pre-miR-139 (miR-139-5p and miR-139-3p) in HNSCC cells. Of these, the GNA12 (guanine nucleotide-binding protein subunit alpha-12) and OLR1 (oxidized low-density lipoprotein receptor 1) expression levels were identified as independent factors that predicted patient survival according to multivariate Cox regression analyses (p = 0.0018 and p = 0.0104, respectively). Direct regulation of GNA12 and OLR1 by miR-139-3p in HNSCC cells was confirmed through luciferase reporter assays. Moreover, overexpression of GNA12 and OLR1 was detected in clinical specimens of HNSCC through immunostaining. The involvement of miR-139-3p (the passenger strand) in the oncogenesis of HNSCC is a new concept in cancer biology. Our miRNA-based strategy will increase knowledge on the molecular pathogenesis of HNSCC.
doi_str_mv 10.3390/ijms22189947
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Analysis of the signature revealed that both strands of some miRNAs, including miR-139-5p (the guide strand) and miR-139-3p (the passenger strand) of miR-139, were downregulated in HNSCC tissues. Analysis of The Cancer Genome Atlas confirmed the low expression levels of miR-139 in HNSCC. Ectopic expression of these miRNAs attenuated the characteristics of cancer cell aggressiveness (e.g., cell proliferation, migration, and invasion). Our in silico analyses revealed a total of 28 putative targets regulated by pre-miR-139 (miR-139-5p and miR-139-3p) in HNSCC cells. Of these, the GNA12 (guanine nucleotide-binding protein subunit alpha-12) and OLR1 (oxidized low-density lipoprotein receptor 1) expression levels were identified as independent factors that predicted patient survival according to multivariate Cox regression analyses (p = 0.0018 and p = 0.0104, respectively). Direct regulation of GNA12 and OLR1 by miR-139-3p in HNSCC cells was confirmed through luciferase reporter assays. 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subjects Binding sites
Biochemistry & Molecular Biology
Cancer
Cell growth
Cell proliferation
Chemistry
Chemistry, Multidisciplinary
Ectopic expression
expression signature
Gene expression
Genomes
Guanine
Guanine nucleotide-binding protein
Head & neck cancer
HNSCC
Life Sciences & Biomedicine
Medical prognosis
Metastasis
microRNA
MicroRNAs
miR-139-3p
miR-139-5p
miRNA
Nucleotides
Passengers
Pathogenesis
Physical Sciences
Proteins
Receptor density
Science & Technology
Squamous cell carcinoma
tumor suppressor
Tumorigenesis
title Impact of Oncogenic Targets by Tumor-Suppressive miR-139-5p and miR-139-3p Regulation in Head and Neck Squamous Cell Carcinoma
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