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Interleukin-6-induced activation of signal transducer and activator of transcription-3 in ruptured rotator cuff tendon. 2006

K Nakama, and M Gotoh, and T Yamada, and Y Mitsui, and H Yasukawa, and T Imaizumi, and F Higuchi, and K Nagata
Department of Orthopaedic Surgery, Kurume University, Fukuoka, Japan.

The aim of this study was to examine interleukin-6 production and the activation of signal transducer and activator of transcription-3 (STAT3) in ruptured rotator cuff tendon. Specimens of ruptured rotator cuff tendons were analysed using real-time reverse transcriptase polymerase chain reaction, Western blotting and immunohistochemistry. Specimens of co-existing inflammatory subacromial synovia were examined for comparison. The level of interleukin-6 messenger RNA was increased in ruptured rotator cuff tendon as well as in subacromial synovium. Western blot analysis showed constitutive production of activated, phosphorylated STAT3 in ruptured rotator cuff tendon and co-existing subacromial synovium. Immunohistochemical examination detected cells producing interleukin-6, interleukin-6 receptor and phosphorylated STAT3 in ruptured rotator cuff tendon, mainly in proliferative vessels and, to a lesser extent, in tendon fibroblasts around the vessels. This study demonstrates that activation of STAT3 induced by interleukin-6 is promoted mainly by proliferative vessels in ruptured rotator cuff tendon.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D010766 Phosphorylation The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety. Phosphorylations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D012421 Rupture Forcible or traumatic tear or break of an organ or other soft part of the body. Ruptures
D015850 Interleukin-6 A cytokine that stimulates the growth and differentiation of B-LYMPHOCYTES and is also a growth factor for HYBRIDOMAS and plasmacytomas. It is produced by many different cells including T-LYMPHOCYTES; MONOCYTES; and FIBROBLASTS. Hepatocyte-Stimulating Factor,Hybridoma Growth Factor,IL-6,MGI-2,Myeloid Differentiation-Inducing Protein,Plasmacytoma Growth Factor,B Cell Stimulatory Factor-2,B-Cell Differentiation Factor,B-Cell Differentiation Factor-2,B-Cell Stimulatory Factor 2,B-Cell Stimulatory Factor-2,BSF-2,Differentiation Factor, B-Cell,Differentiation Factor-2, B-Cell,IFN-beta 2,IL6,Interferon beta-2,B Cell Differentiation Factor,B Cell Differentiation Factor 2,B Cell Stimulatory Factor 2,Differentiation Factor 2, B Cell,Differentiation Factor, B Cell,Differentiation-Inducing Protein, Myeloid,Growth Factor, Hybridoma,Growth Factor, Plasmacytoma,Hepatocyte Stimulating Factor,Interferon beta 2,Interleukin 6,Myeloid Differentiation Inducing Protein,beta-2, Interferon
D017006 Rotator Cuff The musculotendinous sheath formed by the supraspinatus, infraspinatus, subscapularis, and teres minor muscles. These help stabilize the HUMERAL HEAD in the GLENOID CAVITY of the SCAPULA and allow for rotation of the SHOULDER JOINT about its longitudinal axis. Cuff, Rotator,Infraspinatus,Subscapularis,Supraspinatus,Teres Minor,Rotator Cuffs
D050796 STAT3 Transcription Factor A signal transducer and activator of transcription that mediates cellular responses to INTERLEUKIN-6 family members. STAT3 is constitutively activated in a variety of TUMORS and is a major downstream transducer for the CYTOKINE RECEPTOR GP130. APRF Transcription Factor,Acute-Phase Response Factor,IL6-Response Factor,LIF-Response Factor,STAT3 Protein,STAT3a Transcription Factor,STAT3b Transcription Factor,Signal Transducer and Activator of Transcription 3,Stat3alpha Transcription Factor,Stat3beta Transcription Factor,Acute Phase Response Factor,IL6 Response Factor,LIF Response Factor,Response Factor, Acute-Phase,Transcription Factor, APRF,Transcription Factor, STAT3,Transcription Factor, STAT3a,Transcription Factor, STAT3b,Transcription Factor, Stat3alpha,Transcription Factor, Stat3beta

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