TY - JOUR
T1 - Targeting miR-223 in neutrophils enhances the clearance of Staphylococcus aureus in infected wounds
AU - de Kerckhove, Maiko
AU - Tanaka, Katsuya
AU - Umehara, Takahiro
AU - Okamoto, Momoko
AU - Kanematsu, Sotaro
AU - Hayashi, Hiroko
AU - Yano, Hiroki
AU - Nishiura, Soushi
AU - Tooyama, Shiho
AU - Matsubayashi, Yutaka
AU - Komatsu, Toshimitsu
AU - Park, Seongjoon
AU - Okada, Yuka
AU - Takahashi, Rina
AU - Kawano, Yayoi
AU - Hanawa, Takehisa
AU - Iwasaki, Keisuke
AU - Nozaki, Tadashige
AU - Torigoe, Hidetaka
AU - Ikematsu, Kazuya
AU - Suzuki, Yutaka
AU - Tanaka, Katsumi
AU - Martin, Paul
AU - Shimokawa, Isao
AU - Mori, Ryoichi
PY - 2018/10/1
Y1 - 2018/10/1
N2 - Argonaute 2 bound mature microRNA (Ago2-miRNA) complexes are key regulators of the wound inflammatory response and function in the translational processing of target mRNAs. In this study, we identified four wound inflammation-related Ago2-miRNAs (miR-139-5p, miR-142-3p, miR-142-5p, and miR-223) and show that miR-223 is critical for infection control. miR-223Y/− mice exhibited delayed sterile healing with prolonged neutrophil activation and interleukin-6 expression, and markedly improved repair of Staphylococcus aureus-infected wounds. We also showed that the expression of miR-223 was regulated by CCAAT/enhancer binding protein alpha in human neutrophils after exposure to S. aureus peptides. Treatment with miR-223Y/−-derived neutrophils, or miR-223 antisense oligodeoxynucleotides in S. aureus-infected wild-type wounds markedly improved the healing of these otherwise chronic, slow healing wounds. This study reveals how miR-223 regulates the bactericidal capacity of neutrophils at wound sites and indicates that targeting miR-223 might be of therapeutic benefit for infected wounds in the clinic.
AB - Argonaute 2 bound mature microRNA (Ago2-miRNA) complexes are key regulators of the wound inflammatory response and function in the translational processing of target mRNAs. In this study, we identified four wound inflammation-related Ago2-miRNAs (miR-139-5p, miR-142-3p, miR-142-5p, and miR-223) and show that miR-223 is critical for infection control. miR-223Y/− mice exhibited delayed sterile healing with prolonged neutrophil activation and interleukin-6 expression, and markedly improved repair of Staphylococcus aureus-infected wounds. We also showed that the expression of miR-223 was regulated by CCAAT/enhancer binding protein alpha in human neutrophils after exposure to S. aureus peptides. Treatment with miR-223Y/−-derived neutrophils, or miR-223 antisense oligodeoxynucleotides in S. aureus-infected wild-type wounds markedly improved the healing of these otherwise chronic, slow healing wounds. This study reveals how miR-223 regulates the bactericidal capacity of neutrophils at wound sites and indicates that targeting miR-223 might be of therapeutic benefit for infected wounds in the clinic.
KW - inflammation
KW - miR-223
KW - neutrophil
KW - skin wound healing
KW - Staphylococcus aureus
UR - http://www.scopus.com/inward/record.url?scp=85052818304&partnerID=8YFLogxK
U2 - 10.15252/emmm.201809024
DO - 10.15252/emmm.201809024
M3 - Article (Academic Journal)
C2 - 30171089
AN - SCOPUS:85052818304
VL - 10
JO - EMBO Molecular Medicine
JF - EMBO Molecular Medicine
SN - 1757-4676
IS - 10
M1 - e9024
ER -