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Predicting and Quantifying Antagonistic Effects of Natural Compounds Given with Chemotherapeutic Agents: Applications for High-Throughput Screening.

Natural products have been used for centuries to treat various human ailments. In recent decades, multi-drug combinations that utilize natural products to synergistically enhance the therapeutic effects of cancer drugs have been identified and have shown success in improving treatment outcomes. While drug synergy research is a burgeoning field, there are disagreements on the definitions and mathematical parameters that prevent the standardization and proper usage of the terms synergy, antagonism, and additivity. This contributes to the relatively small amount of data on the antagonistic effect

Recent Advances in Nanoparticle-Based Co-Delivery Systems for Cancer Therapy.

Cancer therapies have advanced tremendously throughout the last decade, yet multiple factors still hinder the success of the different cancer therapeutics. The traditional therapeutic approach has been proven insufficient and lacking in the suppression of tumor growth. The simultaneous delivery of multiple small-molecule chemotherapeutic drugs and genes improves the effectiveness of each treatment, thus optimizing efficacy and improving synergistic effects. Nanomedicines integrating inorganic, lipid, and polymeric-based nanoparticles have been designed to regulate the spatiotemporal release of

Properties of Approved Antitumour Chinese Herbal Medicines: Integrating Evidence and Tradition.

The properties and meridian affinities of Chinese herbal medicine are closely associated with their therapeutic efficacy. This review focuses on approved antitumour Chinese medicines listed in the Pharmacopoeia of the People's Republic of China (2020 Edition, Volume I), highlighting their key components. Statistical methods were used to analyse the properties, flavours and channel tropisms of antitumour traditional Chinese medicine (TCM), including both proprietary formulations and commercially available individual herbs. Distinctive patterns were identified by comparing herb profiles with con

Tumor microenvironment signaling and therapeutics in cancer progression.

Tumor development and metastasis are facilitated by the complex interactions between cancer cells and their microenvironment, which comprises stromal cells and extracellular matrix (ECM) components, among other factors. Stromal cells can adopt new phenotypes to promote tumor cell invasion. A deep understanding of the signaling pathways involved in cell-to-cell and cell-to-ECM interactions is needed to design effective intervention strategies that might interrupt these interactions. In this review, we describe the tumor microenvironment (TME) components and associated therapeutics. We discuss t

Extracellular matrix dysregulation in aging, calcification, and cancer diseases: insights into cellular senescence, inflammation, and novel therapeutic strategies.

This review underscores the dynamic role of the extracellular matrix (ECM) in regulating cellular behavior and maintaining tissue homeostasis, highlighting its pivotal involvement in aging, calcification, and cancer diseases. In healthy tissues, controlled ECM remodeling provides essential biochemical and mechanical cues, but dysregulation (driven by chronic inflammation, cellular senescence, and altered intercellular communication) leads to fibrosis, calcification, and the creation of a pro-tumorigenic microenvironment. Senescent cells contribute to these changes through senescence-associated

Mapping the function of MicroRNAs as a critical regulator of tumor-immune cell communication in breast cancer and potential treatment strategies.

Among women, breast cancer ranks as the most prevalent form of cancer, and the presence of metastases significantly reduces prognosis and diminishes overall survival rates. Gaining insights into the biological mechanisms governing the conversion of cancer cells, their subsequent spread to other areas of the body, and the immune system's monitoring of tumor growth will contribute to the advancement of more efficient and targeted therapies. MicroRNAs (miRNAs) play a critical role in the interaction between tumor cells and immune cells, facilitating tumor cells' evasion of the immune system and p

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… For example, the process of introducing miR-195/miR-497 into MDA-MB-231 cells has been discovered to significantly reduce the levels of PD-L1 messenger RNA (mRNA) and protein expression ( Yang et al., 2018a ). …

Role of Autophagy and AMPK in Cancer Stem Cells: Therapeutic Opportunities and Obstacles in Cancer.

Cancer stem cells represent a resilient subset within the tumor microenvironment capable of differentiation, regeneration, and resistance to chemotherapeutic agents, often using dormancy as a shield. Their unique properties, including drug resistance and metastatic potential, pose challenges for effective targeting. These cells exploit certain metabolic processes for their maintenance and survival. One of these processes is autophagy, which generally helps in energy homeostasis but when hijacked by CSCs can help maintain their stemness. Thus, it is often referred as an Achilles heel in CSCs, a

Role of TRP Channels in Cancer-Induced Bone Pain.

The burden of cancer is growing in almost every country. Bone metastases significantly affect the prognosis and lead to an increase in mortality and morbidity. The management of cancer-induced bone pain (CIBP) still shows various unmet needs. Opioid use is burdened by a number of possible side effects. Moreover, recent progresses in cancer treatment significantly increased the life expectancy of cancer patients, even those with metastatic disease. In this narrative review, we reported the main findings regarding TRP channel function in cancer pain models. TRP cation channels play a key role in

Osteoid cell-derived chemokines drive bone-metastatic prostate cancer.

One of the greatest challenges in improving prostate cancer (PCa) survival is in designing new therapies to effectively target bone metastases. PCa regulation of the bone environment has been well characterized; however, bone-targeted therapies have little impact on patient survival, demonstrating a need for understanding the complexities of the tumor-bone environment. Many factors contribute to creating a favorable microenvironment for prostate tumors in bone, including cell signaling proteins produced by osteoid cells. Specifically, there has been extensive evidence from both past and recent

RANKL/RANK System-Based Mechanism for Breast Cancer Bone Metastasis and Related Therapeutic Strategies.

Breast cancer remains one of the most life-threatening tumors affecting women. Most patients with advanced breast cancer eventually develop metastatic diseases, which cause significant morbidity and mortality. Approximately two-thirds of patients with advanced breast cancer exhibit osteolytic-type bone metastasis, which seriously reduce the quality of life. Therefore, development of novel therapeutic strategies for treating breast cancer patients with bone metastasis is urgently required. The "seed and soil" theory, which describes the interaction between the circulating breast cancer cells (s

A novel hollow iron nanoparticle system loading PEG-Fe3O4 with C5a receptor antagonist for breast cancer treatment.

Breast cancer is the most diagnosed malignancy and major cause of cancer death among women population in the worldwide. Ferroptosis is a recently discovered iron-dependent regulated cell death involved in tumor progression and therapeutic response. Moreover, increasing studies have implied that ferroptosis is a promising approach to eliminating cancer cells like developing iron nanoparticles as a therapeutic agent. However, resistance to ferroptosis is a vital distinctive hallmark of cancer. Therefore, further investigation of the mechanism of ferroptosis resistance to enhance its tumor sensit

Exosomes liquid biopsy in Lymphoma precision medicine: applications and challenges.

Liquid biopsy is an emerging non-invasive detection technology that diagnoses tumors and provides prognostic value by analyzing samples such as circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), and exosomes. Exosomes are nanoscale extracellular vesicles (EVs) secreted by cells, encapsulating a diverse array of biomolecules, including proteins, nucleic acids (e.g., mRNA and miRNA), and lipids. Lymphoma cells secrete various exosomes, whose contents carry abundant tumor-associated information and serve as messengers in the tumor microenvironment (TME). Consequently, tumor-derived ex

Targeted synthesis of a trimethoxyphenyltetrahydropyrimidine analogue designed as a DNA intercalator: in silico, multi-spectroscopic, thermodynamic, and in vitro approaches.

Based on the rational design of DNA intercalators and Topo-II inhibitors and taking into consideration the main pharmacophoric features of doxorubicin (Dox) as a reference standard, we theoretically designed novel substituted tetrahydropyrimidine analogues (T1-35). The designed analogues (T1-35) were investigated for their inhibitory potential towards the hybrid DNA and Topo-II target receptor using molecular docking. Interestingly, the theoretically designed analogue T30 with a 3,4,5-trimethoxy phenyl side chain was found to be the superior candidate, achieving a binding score of -7.06 kcal m

Biopsy Techniques for Musculoskeletal Tumors: Basic Principles and Specialized Techniques.

Biopsy is a pivotal component in the diagnostic process of bone and soft tissue tumors. The objective is to obtain adequate tissue without compromising local tumor dissemination and the patient's survival. This review explores contemporary principles and practices in musculoskeletal biopsies, emphasizing the critical role of diagnostic accuracy while also delving into the evolving landscape of liquid biopsies as a promising alternative in the field. A thorough literature search was done in PubMed and Google Scholar as well as in physical books in libraries to summarize the available biopsy tec

Protective Effects of Flavonoids Against Mitochondriopathies and Associated Pathologies: Focus on the Predictive Approach and Personalized Prevention.

Multi-factorial mitochondrial damage exhibits a "vicious circle" that leads to a progression of mitochondrial dysfunction and multi-organ adverse effects. Mitochondrial impairments (mitochondriopathies) are associated with severe pathologies including but not restricted to cancers, cardiovascular diseases, and neurodegeneration. However, the type and level of cascading pathologies are highly individual. Consequently, patient stratification, risk assessment, and mitigating measures are instrumental for cost-effective individualized protection. Therefore, the paradigm shift from reactive to pred

Nano-formulations in disease therapy: designs, advances, challenges, and future directions.

Nano-formulations, as an innovative drug delivery system, offer distinct advantages in enhancing drug administration methods, improving bioavailability, promoting biodegradability, and enabling targeted delivery. By exploiting the unique size advantages of nano-formulations, therapeutic agents, including drugs, genes, and proteins, can be precisely reorganized at the microscale level. This modification not only facilitates the precise release of these agents but also significantly enhances their efficacy while minimizing adverse effects, thereby creating novel opportunities for treatment of a

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… DNC, in combination with exogenous p53, demonstrated synergistic anticancer effects by significantly enhancing apoptosis and reducing migratory capacity in breast cancer MDA-MB-231 cells. …

Circulating biomarkers in osteosarcoma: new translational tools for diagnosis and treatment.

Osteosarcoma (OS) is a rare primary malignant bone tumour arising from primitive bone-forming mesenchymal cells, with high incidence in children and young adults, accounting for approximately 60% of all malignant bone tumours. Currently, long-term disease-free survival can be achieved by surgical treatment plus chemotherapy in approximately 60% of patients with localized extremity disease, and in 20-30% of patients with metastatic lung or bone disease. Diagnosis of primary lesions and recurrences is achieved by using radiological investigations and standard tissue biopsy, the latter being cost

Iron in the Tumor Microenvironment-Connecting the Dots.

Iron metabolism and tumor biology are intimately linked. Iron facilitates the production of oxygen radicals, which may either result in iron-induced cell death, ferroptosis, or contribute to mutagenicity and malignant transformation. Once transformed, malignant cells require high amounts of iron for proliferation. In addition, iron has multiple regulatory effects on the immune system, thus affecting tumor surveillance by immune cells. For these reasons, inconsiderate iron supplementation in cancer patients has the potential of worsening disease course and outcome. On the other hand, chronic im

Уникальные диагностические и терапевтические функции порфиринов и фтальокянинов в области фотодинамической терапии, визуализации и термостимы.

Порфиринические молекулы играют уникальную тераностическую роль в лечении болезней; они используются для отображения, обнаружения и лечения различных форм заболевших тканей, в том числе в связи с возрастной маркулярной дегенерацией и рядом различных видов рака. В настоящее время основное внимание уделяется клинической съемке опухолей; целенаправленной доставке фотосенитеров и потенциалу фотоэнцедентов в мультимодальных биомедицинских наноплатформах. В настоящем Обзоре подчеркиваются роли порфириновых молекул в области съемки и пдта, а также исследования по совершенствованию их селективного пог

Abstracts from the 13th International Conference for Healthcare and Medical Students (ICHAMS).

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… Controls included monocultures of Day 14 MDA-MB-231 cells, Day 21 osteoblasts and Day 35 osteoblasts. A breast cancer bone metastasis model was successfully developed. …