942 research outputs found
Interleukin-1 beta - a friend or foe in malignancies?
Interleukin-1 beta (IL-1β) is induced by inflammatory signals in a broad number of immune cell types. IL-1β (and IL-18) are the only cytokines which are processed by caspase-1 after inflammasome-mediated activation. This review aims to summarize current knowledge about parameters of regulation of IL-1β expression and its multi-facetted role in pathophysiological conditions. IL-1 signaling activates innate immune cells including antigen presenting cells, and drives polarization of CD4+ T cells towards T helper type (Th) 1 and Th17 cells. Therefore, IL-1β has been attributed a largely beneficial role in resolving acute inflammations, and by initiating adaptive anti-tumor responses. However, IL-1β generated in the course of chronic inflammation supports tumor development. Furthermore, IL-1β generated within the tumor microenvironment predominantly by tumor-infiltrating macrophages promotes tumor growth and metastasis via different mechanisms. These include the expression of IL-1 targets which promote neoangiogenesis and of soluble mediators in cancer-associated fibroblasts that evoke antiapoptotic signaling in tumor cells. Moreover, IL-1 promotes the propagation of myeloid-derived suppressor cells. Using genetic mouse models as well as agents for pharmacological inhibition of IL-1 signaling therapeutically applied for treatment of IL-1 associated autoimmune diseases indicate that IL-1β is a driver of tumor induction and development
The price of tumor control
Ipilimumab, a cytotoxic T-lymphocyte antigen-4 (CTLA-4) blocking antibody, has been approved for the treatment of metastatic melanoma and induces adverse events (AE) in up to 64% of patients. Treatment algorithms for the management of common ipilimumab-induced AEs have lead to a reduction of morbidity, e.g. due to bowel perforations. However, the spectrum of less common AEs is expanding as ipilimumab is increasingly applied. Stringent recognition and management of AEs will reduce drug-induced morbidity and costs, and thus, positively impact the cost-benefit ratio of the drug. To facilitate timely identification and adequate management data on rare AEs were analyzed at 19 skin cancer centers. Patient files (n = 752) were screened for rare ipilimumab-associated AEs. A total of 120 AEs, some of which were life-threatening or even fatal, were reported and summarized by organ system describing the most instructive cases in detail. Previously unreported AEs like drug rash with eosinophilia and systemic symptoms (DRESS), granulomatous inflammation of the central nervous system, and aseptic meningitis, were documented. Obstacles included patientś delay in reporting symptoms and the differentiation of steroid-induced from ipilimumab-induced AEs under steroid treatment. Importantly, response rate was high in this patient population with tumor regression in 30.9% and a tumor control rate of 61.8% in stage IV melanoma patients despite the fact that some patients received only two of four recommended ipilimumab infusions. This suggests that ipilimumab-induced antitumor responses can have an early onset and that severe autoimmune reactions may reflect overtreatment. The wide spectrum of ipilimumab-induced AEs demands doctor and patient awareness to reduce morbidity and treatment costs and true ipilimumab success is dictated by both objective tumor responses and controlling severe side effects
Shifting cancer care towards Multidisciplinarity: the cancer center certification program of the German cancer society
Background: Over the last decades numerous initiatives have been set up that aim at translating the best available medical knowledge and treatment into clinical practice. The inherent complexity of the programs and discrepancies in the terminology used make it difficult to appreciate each of them distinctly and compare their specific strengths and weaknesses. To allow comparison and stimulate dialogue between different programs, we in this paper provide an overview of the German Cancer Society certification program for multidisciplinary cancer centers that was established in 2003.
Main body: In the early 2000s the German Cancer Society assessed the available information on quality of cancer care in Germany and concluded that there was a definite need for a comprehensive, transparent and evidence-based system of quality assessment and control. This prompted the development and implementation of a voluntary cancer center certification program that was promoted by scientific societies, health-care providers, and patient advocacy groups and based on guidelines of the highest quality level (S3). The certification system structures the entire process of care from prevention to screening and multidisciplinary treatment of cancer and places multidisciplinary teams at the heart of this program. Within each network of providers, the quality of care is documented using tumor-specific quality indicators. The system started with breast cancer centers in 2003 and colorectal cancer centers in 2006. In 2017, certification systems are established for the majority of cancers. Here we describe the rationale behind the certification program, its history, the development of the certification requirements, the process of data collection, and the certification process as an example for the successful implementation of a voluntary but powerful system to ensure and improve quality of cancer care.
Conclusion: Since 2003, over 1 million patients had their primary tumors treated in a certified center. There are now over 1200 sites for different tumor entities in four countries that have been certified in accordance with the program and transparently report their results from multidisciplinary treatment for a substantial proportion of cancers. This led to a fundamental change in the structure of cancer care in Germany and neighboring countries within one decade
Combination therapy of recalcitrant severe psoriasis with psoriatic arthritis, diabetes nephropathy, and liver cirrhosis
Objective: Treatment of recalcitrant moderate-to-severe psoriasis can be challenging. Combination therapy of biologics and immunosuppressive agents can be a new strat-egy for treating therapy- resistant cases with comorbidities, where many systemic medications are contraindicated.Case presentation: We report a case of a 62-year-old diabetic man with a 30-year history of severe plaque psoriasis and psoriatic arthritis with cirrhosis and diabetic nephropathy that was treated successfully in combination with apremilast and etaner-cept after multiple previous unsuccessful treatment attempts.Conclusion: There are no data supporting the combination of apremilast and etaner-cept in the management of recalcitrant cases of moderate-to-severe psoriasis and multiple comorbidities including psoriatic arthritis, diabetic nephropathy, and cirrho-sis. In patients who do not respond to multiple approaches for the treatment of pso-riasis, combination therapy with biologic agents and new systemic medications may lead to dramatic disease control
The price of tumor control: an analysis of rare side effects of anti-CTLA-4 therapy in metastatic melanoma from the ipilimumab network
Background: Ipilimumab, a cytotoxic T-lymphocyte antigen-4 (CTLA-4) blocking antibody, has been approved for the treatment of metastatic melanoma and induces adverse events (AE) in up to 64% of patients. Treatment algorithms for the management of common ipilimumab-induced AEs have lead to a reduction of morbidity, e.g. due to bowel perforations. However, the spectrum of less common AEs is expanding as ipilimumab is increasingly applied. Stringent recognition and management of AEs will reduce drug-induced morbidity and costs, and thus, positively impact the cost-benefit ratio of the drug. To facilitate timely identification and adequate management data on rare AEs were analyzed at 19 skin cancer centers.
Methods and Findings: Patient files (n = 752) were screened for rare ipilimumab-associated AEs. A total of 120 AEs, some of which were life-threatening or even fatal, were reported and summarized by organ system describing the most instructive cases in detail. Previously unreported AEs like drug rash with eosinophilia and systemic symptoms (DRESS), granulomatous inflammation of the central nervous system, and aseptic meningitis, were documented. Obstacles included patientś delay in reporting symptoms and the differentiation of steroid-induced from ipilimumab-induced AEs under steroid treatment. Importantly, response rate was high in this patient population with tumor regression in 30.9% and a tumor control rate of 61.8% in stage IV melanoma patients despite the fact that some patients received only two of four recommended ipilimumab infusions. This suggests that ipilimumab-induced antitumor responses can have an early onset and that severe autoimmune reactions may reflect overtreatment.
Conclusion: The wide spectrum of ipilimumab-induced AEs demands doctor and patient awareness to reduce morbidity and treatment costs and true ipilimumab success is dictated by both objective tumor responses and controlling severe side effects
Update on diagnosis and treatment of actinic keratosis
Actinic keratosis (AK) is a relatively common skin condition occurring due to chronic sun-exposure, primarily affecting fair skin. Most dermatologists consider it an incipient malignancy due to its risk of full-blown malignant transformation to squamous cell carcinoma. However, the exact risk factors remain unknown, and thus its course cannot be predicted. Therefore, all cases of AK need early diagnosis and appropriate treatment to mitigate this risk. Over the years, several noninvasive diagnostic techniques such as dermoscopy, reflectance confocal microscopy, and newer treatment modalities (lesion-directed and field-directed) have been introduced with their own set of advantages and disadvantages. Notably, invasive skin biopsy with histopathology remains the gold-standard for diagnosis. Prevention is of paramount importance, highlighted by adequate sun-protection measures. This article reviews the diagnostic and treatment modalities of AK, with their latest updates, to optimize patient management
Psoriasis: embarking a dynamic shift in the skin microbiota
Recent interest has arisen regarding the role of microbiome and its composition in the pathogenesis of psoriasis. Numerous studies have shown that there are alterations in skin flora arrangement between normal individuals and psoriatic patients. Psoriasis exacerbation could be interconnected with epidermal or mucosal colonization with streptococci, Malassezia, Staphylococcus aureus, or Candida albicans. The role of cutaneous and gut microbiome in psoriasis pathogenesis has recently been studied in both human and animal models. In this review, we try to evaluate various pathogenic mechanisms linking the microbiota and psoriasis. The literature research included peer-reviewed articles which included clinical trials, original reports, and scientific reviews. MEDLINE and PubMed databases were searched from January 1990 to March 2021, including the reference lists of articles meeting our criteria
Curcumin and Its Derivatives in Hepatology: Therapeutic Potential and Advances in Nanoparticle Formulations
Curcumin, a plant-derived polyphenol, shows promise in hepatology for treating
both malignant and non-malignant liver diseases and a subset of extrahepatic cancers.
Curcumin has hepatoprotective, anti-inflammatory, antifibrotic, and antiproliferative properties, as is evident in preclinical and clinical studies. This highlights its potential as an
adjunct to established cancer therapies, especially in the context of hepatocellular carcinoma
and secondary liver malignancies. Curcumin also demonstrates potential in metabolic
dysfunction-associated steatotic liver disease (MASLD), owing to its antifibrotic and lipidlowering effects. However, its clinical use is limited, relating to its poor bioavailability and
rapid metabolism. Nanotechnology, including liposomal and polymeric carriers, alongside
synthetic curcumin derivatives, offers strategies to enhance the bioavailability and pharmacokinetic properties. We propose to revisit the use of curcumin in nanoparticle preparations
in chronic liver disease and summarize current evidence in this review article
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