Glioblastoma multiforme (GBM) is the most aggressive type of primary brain tumor and is associated with a poor clinical prognosis. Despite the progress in the understanding of the molecular and genetic changes that promote tumorigenesis, effective treatment options are limited. The present review intended to identify and summarize major signaling pathways and genetic abnormalities involved in the pathogenesis of GBM, as well as therapies that target these pathways. Glioblastoma remains a difficult to treat tumor; however, in the last two decades, significant improvements in the understanding of GBM biology have enabled advances in available therapeutics. Significant genomic events and signaling pathway disruptions (NF‑κB, Wnt, PI3K/AKT/mTOR) involved in the formation of GBM were discussed. Current therapeutic options may only marginally prolong survival and the current standard of therapy cures only a small fraction of patients. As a result, there is an unmet requirement for further study into the processes of glioblastoma pathogenesis and the discovery of novel therapeutic targets in novel signaling pathways implicated in the evolution of glioblastoma.

Lung cancer remains the second most commonly diagnosed cancer worldwide and the leading cause of cancer-related mortality. The mapping of genomic alterations and their role in lung-cancer progression has been followed by the development of new therapeutic options. Several novel drugs, such as targeted therapy and immunotherapy, have significantly improved outcomes. However, many patients with lung cancer do not benefit from existing therapies or develop progressive disease, leading to increased morbidity and mortality despite initial responses to treatment. Alterations in DNA-damage repair (DDR) genes represent a cancer hallmark that impairs a cell’s ability to prevent deleterious mutation accumulation and repair. These alterations have recently emerged as a therapeutic target in breast, ovarian, prostate, and pancreatic cancers. The role of DDR alterations remains largely unknown in lung cancer. Nevertheless, recent research efforts have highlighted a potential role of some DDR alterations as predictive biomarkers of response to treatment. Despite the failure of PARP inhibitors (main class of DDR targeting agents) to improve outcomes in lung cancer patients, there is some evidence suggesting a role of PARP inhibitors and other DDR targeting agents in benefiting a distinct subset of lung cancer patients. In this review, we will discuss the existing literature on DDR alterations and homologous recombination deficiency (HRD) state as predictive biomarkers and therapeutic targets in both non-small cell lung and small cell lung cancer.

In this review, we describe the concept of the glymphatic system as a glial-dependent clearance pathway in the brain. The hypothesis of the glymphatic system function suggests that dural lymphatic vessels absorb the cerebrospinal fluid and brain interstitial fluid via the glymphatic system and transport fluid into deep cervical lymph nodes. We present the accumulated data of various studies confirming the possible interconnection among the brain interstitial fluid, cerebrospinal fluid, and the glymphatic system. Anatomical features are discussed here together with a possible variety of glymphatic system functions, including the removal of waste products, transport of substances, and immune function. The glymphatic system is hypothesized to be involved in pathogenesis of many diseases, including Alzheimer's disease, stroke, and Parkinson’s disease. We also discuss the role of the glymphatic system in pathophysiology and the complications of brain tumors. Meningeal lymphatics is thoroughly analyzed as well. Finally, we propose new treatment approaches to brain tumors, Parkinson’s disease, and stroke using cervical lymph nodes and backward fluid flow in the meningeal lymphatic vessels.

The rapid development of 3D bioprinting technology has not been critically evaluated for its potential clinical applications… The ability of 3D manufacturing to create organ-like structures obscures the fact that the formed grafts are not physiologically relevant. We hypothesize that researchers do not use techniques that allow for the evaluation of the micro-architectonics of formed implants and mainly focus on biocompatibility and commonly observed immunological responses. This study aims to investigate the morphological landscape of the basics of 3D bioprinting through a systematic review of the outcomes of the experimental implantation of bioprinted constructs. A systematic search was conducted in the PubMed database using the following query: (bioprinting OR printing OR bioprinted OR printed OR bioinks) AND (cell OR cells) AND (implantation OR implanted OR in vivo) AND (goat OR porcine OR pig OR swine OR dog OR rabbit OR sheep) NOT (human OR humans). This systematic review evaluated the preformed studies of the in vivo assessment the 3D-bioprinted constructs, and 41 articles meeting the inclusion criteria were selected. We concluded that 3D bioprinting has limited applications for forming living tissue for orthotopic implantation. Additionally, quantitative methods for evaluating the properties and morphological quality of implanted bioprinted constructs have not been developed for tissue engineering applications.

Background: For years, it has been the common and widely accepted practice in thoracic surgery to place apical and basal drains after a lobectomy to completely drain the pleural cavity. With the development of thoracoscopic technology, it became apparent that the use of a single chest tube provided the same clinical results. However, sometimes tension pneumothorax occurs with the need for additional pleural drainage. The aim of this study was to develop a prognostic model to identify high risk patients intraoperatively and to insert additional pleural drainage to prevent the development of pneumothorax after video-assisted thoracoscopic surgery (VATS) lobectomy. Methods: This was a retrospective multicenter study of patients (registry data was analyzed) who underwent VATS lobectomy via a standardized multiport approach between 2014 and 2022. In all cases, a single drain was used postoperatively. We used a machine learning algorithm and data synthesis to expand patient selection according to Riley’s method. A total of 418 cases were analyzed in this study. After determining the prognostically significant factors, we performed a binary logistic regression analysis using reverse step-by-step inclusion of variables according to the Akaike information criterion. After validation of the model by bootstrap (400 iterations) and with the original dataset, a nomogram with a specific point distribution for each risk factor was created. Results: The rate of tension pneumothorax was 4.53% (n=66). The most significant variables associated with the need for additional drainage were adhesions, intraoperative lung suturing, fused interlobar fissure, enlarged intrapulmonary lymph nodes, chronic obstructive pulmonary disease (P<0.001). The C-index of the model was 0.957, the mean absolute calibration error was 0.6%, and the slope of the calibration curve was 0.959. A score of 26 points indicated a 95% risk of postoperative tension pneumothorax. Conclusions: The nomogram achieved good predictive performance for tension pneumothorax after minimally invasive lobectomy. High-risk patients could be identified, and additional drainage may be placed intraoperatively to reduce the risk of lung collapse in the postoperative period.

Мyasthenia gravis is a common disease, for adequate treatment of which early detection, knowledge of its clinical manifestations and possible methods of therapy is required. This review provides up-to-date information regarding the issues of myasthenia gravis. The aim of the paper: to systematize the latest scientific data on the pathogenesis, genetic characteristics, methods of treatment of myasthenia gravis, as well as to identify the relationship between myasthenia gravis and other diseases. The following databases were used to search for published studies: Pubmed, Web of Science, EBSCOhost and Scopus. The search was carried out in the time period from the date of establishment of the corresponding database until October 2022. Following search terms were used: “myasthenia gravis”, “myasthenia treatment”, “myasthenia epidemiological features”, “myasthenia and thymoma “myasthenia pathogenesis””. Тhe main studies on the epidemiology of myasthenia gravis are indicated, the key clinical forms and their pathogenetic characteristics, the relationship between myasthenia gravis and thymoma, and the main methods of treatment are also given.