Multi drug resistance in Colorectal Cancer- approaches to overcome, advancements and future success

A significant obstacle to treating cancer is multidrug resistance (MDR), which is the capacity of cancerous cells to develop resistance to both traditional and cutting-edge chemotherapeutic treatments. Following the initial discovery that cellular pumps reliant on ATP were the root of chemotherapy resistance, more research has revealed the involvement of additional mechanisms, including increased drug metabolism, reduced drug entry, and compromised apoptotic pathways. Numerous projects have focused on MDR, and innumerable research has been conducted to better understand MDR and develop methods to mitigate its consequences. Multidrug resistance (MDR) is a key challenge in treating cancer. 90% of cancer-related fatalities are brought on by tumor metastasis and recurrence, which is possible with MDR. Drug resistance in cancerous cells is influenced by diverse internal and extrinsic variables, including genetic and epigenetic changes, drug efflux systems, DNA repair mechanisms, apoptosis, and autophagy. In this review paper, we list the potential hazards associated with cancer therapy in general, primarily multidrug resistance developing a theory for colorectal cancer in particular. We discussed the unique instance of multidrug resistance in colorectal cancer in malignancies generally and 5-fluorouracil, curcumin, and lipids as viable therapy options for the condition. The use of nanotechnology (mainly nanoparticles) has facilitated better in vitro as well as in vivo efficacy during preclinical phases, summarized below, allowing for a more thorough investigation of colorectal cancers and pancreatic carcinomas with their translation to following clinical trials

A narrative review on the role of magnesium in immune regulation, inflammation, infectious diseases, and cancer

Abstract Background Magnesium (Mg) has gained much importance recently because of its unique range of biological functions. It is one of the most significant micronutrients in biological systems. This review aims to outline the immune-regulating actions of Mg and its crucial role in regulating inflammation and immune response to infectious agents and malignancies. Methods We conducted a literature review on MEDLINE, PubMed, EMBASE, Web of Science to determine the impact of Mg on immune regulation in three settings of inflammation, infection, and cancer. We thoroughly examined all abstracts and full-text articles and selected the most relevant ones for inclusion in this review. Results Mg has long been associated with immunological responses, both nonspecific and specific. It plays a pivotal role in diverse immune responses by participating in multiple mechanisms. It facilitates substance P binding to lymphoblasts, promotes T helper, B cell, and macrophage responses to lymphokines, and facilitates antibody-dependent cytolysis and immune cell adherence. Besides, Mg serves as a cofactor for C'3 convertase and immunoglobulin synthesis. It additionally boasts a significant anti-cancer effect. Chronic Mg deficiency leads to enhanced baseline inflammation associated with oxidative stress, related to various age-associated morbidities. A deficiency of Mg in rodents has been observed to impact the cell-mediated immunity and synthesis of IgG adversely. This deficiency can lead to various complications, such as lymphoma, histaminosis, hypereosinophilia, increased levels of IgE, and atrophy of the thymus. The immunological consequences of Mg deficiency in humans can be influenced by the genetic regulation of Mg levels in blood cells. Mg can also mediate cell cycle progression. There has been a renewed interest in the physiology and therapeutic efficacy of Mg. However, the in-depth mechanisms, their clinical significance, and their importance in malignancies and inflammatory disorders still need to be clarified. Conclusions Mg is essential for optimal immune function and regulating inflammation. Deficiency in Mg can lead to temporary or long-term immune dysfunction. A balanced diet usually provides sufficient Mg, but supplementation may be necessary in some cases. Excessive supplementation can have negative impacts on immune function and should be avoided. This review provides an update on the importance of Mg in an immune response against cancer cells and infectious agents and how it regulates inflammation, oxidative stress, cell progression, differentiation, and apoptosis

Overview of processed excipients in ocular drug delivery: Opportunities so far and bottlenecks

Ocular drug delivery presents a unique set of challenges owing to the complex anatomy and physiology of the eye. Processed excipients have emerged as crucial components in overcoming these challenges and improving the efficacy and safety of ocular drug delivery systems. This comprehensive overview examines the opportunities that processed excipients offer in enhancing drug delivery to the eye. By analyzing the current landscape, this review highlights the successful applications of processed excipients, such as micro- and nano-formulations, sustained-release systems, and targeted delivery strategies. Furthermore, this article delves into the bottlenecks that have impeded the widespread adoption of these excipients, including formulation stability, biocompatibility, regulatory constraints, and cost-effectiveness. Through a critical evaluation of existing research and industry practices, this review aims to provide insights into the potential avenues for innovation and development in ocular drug delivery, with a focus on addressing the existing challenges associated with processed excipients. This synthesis contributes to a deeper understanding of the promising role of processed excipients in improving ocular drug delivery systems and encourages further research and development in this rapidly evolving field