Annals of medicine
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Review
Targeting interleukin 4 and interleukin 13: a novel therapeutic approach in bullous pemphigoid.
Aim: Bullous pemphigoid (BP) is an organ-specific autoimmune bullous disease characterized by autoantibodies that target the cellular adhesion molecules BP180 and BP230. Both immunoglobulin (Ig)G and IgE are involved in the induction of subepidermal blisters. Specifically, IgE autoantibodies are presumed to be responsible for the pruritic and erythematous features of BP. ⋯ KEY MESSAGESBP is an autoimmune skin disease with Th2-mediated autoimmune response involvement. As typical Th2 cytokines, IL-4 and IL-13 may contribute to the pathogenesis of BP in multiple ways, such as promoting Th2 cell polarization, driving the immunoglobulin class switching, recruiting eosinophils and basophils, and inducing pruritus. As a promising therapeutic approach for BP, IL-4/13 antagonists have shown satisfactory outcomes in preliminary clinical studies.
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N-myristoyltransferase 1 (NMT1) is an indispensable eukaryotic enzyme that catalyses the transfer of myristoyl groups to the amino acid terminal residues of numerous proteins. This catalytic process is required for the growth and development of many eukaryotes and viruses. Elevated expression and activity of NMT1 is observed to varying degrees in a variety of tumour types (e.g. colon, lung and breast tumours). ⋯ Key MessagesElevated expression and activity of NMT1 is observed to varying degrees in a variety of tumour types which creates the possibility of targeting NMT1 in tumours. NMT1-mediated myristoylation plays a pivotal role in cancer cell metabolism and may be particularly relevant to cancer metastasis and drug resistance. These insights can be used to direct potential therapeutic avenues for NMT1 inhibitors.
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The chemokine CCL5 plays a potential role in the occurrence and development of colorectal cancer (CRC). Previous studies have shown that CCL5 directly acts on tumor cells to change tumor metastatic rates. In addition, CCL5 recruits immune cells and immunosuppressive cells into the tumor microenvironment (TME) and reshapes the TME to adapt to tumor growth or increase antitumor immune efficacy, depending on the type of secretory cells releasing CCL5, the cellular function of CCL5 recruitment, and the underlying mechanisms. ⋯ Key MessagesCCL5 plays dual roles in colorectal cancer progression. CCL5 remodels the tumor microenvironment to adapt to colorectal cancer tumor growth by recruiting immunosuppressive cells or by direct action. CCL5 inhibits colorectal cancer tumor growth by recruiting immune cells or by direct action.
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Obesity is a chronic disease characterised by excess adiposity, which impairs health. The high prevalence of obesity raises the risk of long-term medical complications including type 2 diabetes and chronic kidney disease. Several studies have focused on patients with obesity, type 2 diabetes and chronic kidney disease due to the increased prevalence of diabetic kidney disease. ⋯ Key messageObesity is a driver of chronic kidney disease, and type 2 diabetes, along with obesity, accelerates chronic kidney disease. Several randomized controlled trials on sodium-glucose cotransporter 2 inhibitors, glucagon-like peptide-1 analogues, and bariatric surgery in diabetic kidney disease demonstrate the improvement of renal outcomes. There is a need to address the treatment of patients with obesity and CKD to lessen morbidity.
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Technological advances of hand-held ultrasound devices and educational programmes for their use, such as point-of-care ultrasonography (POCUS) training, have contributed to the increasing application of these devices in clinical practice. With the greater impact of frailty and sarcopenia in aging societies, attention is being focused on the use of ultrasound for skeletal muscle assessment. In this narrative review, we discuss how ultrasound can be applied to skeletal muscle assessment, especially that of the quadriceps muscle, in clinical practice. ⋯ KEY MESSAGESThe evolution of hand-held ultrasound devices enables physicians to perform ultrasound at the bedside as part of regular medical examinations. Muscle ultrasound is considered an effective tool for evaluating muscle size and quality, and has been studied in various settings. More clinicians may be able to evaluate skeletal muscle assessment with the development of educational programmes on muscle ultrasound in the future.