The JAK/STAT Pathway in Skeletal Muscle Pathophysiology

Conclusion and Perspectives The IL-6/JAK/STAT signaling cascade plays a dominant role in skeletal muscle pathophysiology. IL-6 autocrine, paracrine, and endocrine functions assign to its downstream effectors pivotal importance in skeletal muscle-wasting-associated diseases and other multiple system diseases where muscle acts in communication with other organs. Targeting the components of the JAK/STAT pathway recently emerged as a strategic approach for the treatment of inflammatory diseases and human cancer. This review highlights the opposite outcomes on muscle biology caused by the amount of local and systemic release of IL-6. Transient release and short-term acute action have positive effects, by increasing the source of progenitors for regeneration and growth in skeletal muscle. This also affects metabolic processes in other organs, since it stimulates glucose production. In different circumstances, chronically elevated levels of IL-6 have negative consequences, promoting muscle atrophy through different mechanisms not completely yet elucidated. These antithetical effects can also be a key to the several discrepancies observed with different experimental approaches aimed to decipher the IL-6/JAK/STAT role in skeletal muscle functions. Moreover, the different cell and tissue compartments where IL-6 is produced and acts can account for the conflicting effects observed on muscle repair, growth, and wasting. Additionally, a role in these dichotomous outcomes can also be car...
Source: Frontiers in Physiology - Category: Physiology Source Type: research

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Source: Tumori - Category: Cancer & Oncology Tags: Tumori Source Type: research
Authors: Zhang XY, Zhang PY Abstract [This retracts the article DOI: 10.3892/ol.2016.5107.]. PMID: 32934752 [PubMed - in process]
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Authors: Zhang XY, Zhang PY Abstract [This retracts the article DOI: 10.3892/ol.2016.5093.]. PMID: 32934751 [PubMed - in process]
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Authors: Wan S, Zhao H Abstract The present study aimed to explore the diagnostic and prognostic value of lncRNA maternally expressed 3 (MEG3) in cervical cancer. Eighty-four patients with cervical cancer from February 2013 to March 2014 were enrolled in the observation group (OG), and another 58 female subjects who underwent physical examination at Huangshi Central Hospital were enrolled as the control group (CG). The serum MEG3 expression of patients in the two groups was detected by RT-qPCR, and the ability of MEG3 to aid in the diagnosis of cervical cancer, lymph node metastasis and FIGO staging, as well as to ...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
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Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
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Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
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Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Authors: Verma A, Najahi-Missaoui W, Cummings BS, Somanath PR Abstract Metastatic prostate cancer (PCa) has a very high mortality rate in men, in Western countries and lacks reliable treatment. The advanced-stage PCa cells overexpress P21 (RAC1) activated kinase-1 (PAK1) and secreted phospholipase A2 (sPLA2) suggesting the potential utility of pharmacologically targeting these molecules to treat metastatic PCa. The small molecule, inhibitor targeting PAK1 activation-3 (IPA3) is a highly specific allosteric inhibitor of PAK1; however, it is metabolically unstable once in the plasma thus, limiting its utility as a ch...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
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Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
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Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
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