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2022 (3)

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Book
Reassessing Twenty Years of Vaccine Development Against Tuberculosis
Authors: ---
Year: 2018 Publisher: Frontiers Media SA

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Abstract

Tuberculosis (TB) remains the prime bacterial infection worldwide with 10.4 million infections and a death toll of 1.7 million people in 2016 according to WHO statistics. Tuberculosis is caused by members of the Mycobacterium tuberculosis complex, facultative intracellular bacteria able to thrive within otherwise potent innate defense cells, the macrophages. In a world of increasing numbers of infections with drug resistant M. tuberculosis strains, the daunting race between developing new therapeutics and emerging resistant strains will hardly produce a winner. This cycle can only be broken by enhancing population wide immune control through a better vaccine as the only one currently in use, M. bovis Bacillus Calmette Guerin (BCG). The protective efficacy of BCG against pulmonary tuberculosis in all age groups is dissatisfying and geographically highly diverse with the tropical areas showing the lowest efficacy rates. Despite worldwide vaccination coverage, the impact of BCG on the steep decrease of tuberculosis incidence rates in the developed world seems therefore questionable and can rather be attributed to improved social, housing and nutritional conditions, better health care, surveillance and treatment systems. The last 15 years saw tremendous efforts to improve vaccination strategies against tuberculosis. Different paths of vaccine approaches were followed including genetically improved BCG strains, attenuated M. tuberculosis variants, recombinant viral vectors and subunit vaccine candidates combined with novel more potent adjuvants. With the first novel vaccine candidates being evaluated in clinical phases II and III and initial results chastening the expectations, a critical reassessment of all candidates is inevitable. Here, we assembled experts to review and assess the current status of novel anti-tuberculosis vaccine candidates, their efficacy and prospects for implementation as well as the pitfalls and possible measures for improvement.


Book
Host-Directed Therapies for Tuberculosis
Author:
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

TB is considered as one of the oldest documented infectious diseases in the world and is believed to be the leading cause of mortality due to a single infectious agent. Mtb, the causative agent responsible for TB, continues to afflict millions of people worldwide. Furthermore, one-third of the entire world's population has latent TB. Consequently, there has been a worldwide effort to eradicate and limit the spread of Mtb through the use of antibiotics. However, management of TB is becoming more challenging with the emergence of drug-resistant and multi-drug resistant strains of Mtb. Furthermore, when administered, many of the anti-TB drugs commonly present severe complications and side effects. Novel approaches to enhance the host immune responses to completely eradicate Mtb infection are urgently needed. This Special Issue will therefore cover most recent advances in the area of host-directed therapies for TB.


Book
Challenges and Advances in Tuberculosis and Mycobacterial Lung Diseases
Authors: ---
ISBN: 3036554920 3036554912 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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The Special Issue of the journal Diagnostics entitled “Challenges and Advances in Tuberculosis and Mycobacterial Lung Diseases” encompasses research articles, case presentations, and literature reviews concerning the epidemiology, medical surveillance, as well as diagnostic and therapeutic challenges in tuberculosis (TB) and in the infections caused by non-tuberculous mycobacteria (NTM ). The articles present the current status of knowledge concerning the use of molecular tests and genotyping of M. tuberculosis for the rapid identification of MDR and XDR clones, the advances in the identification of NTM and their differentiation to the species level, as well as clinical studies performed in TB and NTM risk groups. In addition, a summary of current recommendations concerning diagnosis and treatment of tuberculous pericarditis is presented.


Book
Urological Cancer 2021
Authors: ---
Year: 2022 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Cancer of the urological sphere is a disease continuously increasing in numbers in the statistics of tumor malignancies in Western countries. Although this fact is mainly due to the contemporary increase of life expectancy of the people in these geographic areas, many other factors do contribute as well to this growth. Urological cancer is a complex and varied disease of different organs and mainly affects the male population. In fact, kidney, prostate, and bladder cancer are regularly included in the top-ten list of the most frequent neoplasms in males in most statistics. The female population, however, has also increasingly found itself affected by renal and bladder cancer in the last decade. Considering these altogether, urological cancer is a problem of major concern in developed societies. This Topic Issue of Cancers intends to shed some light into the complexity of this field and will consider all useful and appropriate contributions that scientists and clinicians may provide to improve urological cancer knowledge for patients’ benefit. The precise identification of the molecular routes involved, the diagnostic pathological criteria in the grey zones, the dilemma of T1G3 management, and the possible treatment options between superficial, nonmuscle-invasive and muscle-invasive diseases will be particularly welcomed in this Issue.

Keywords

bladder cancer --- radiotherapy --- radiosensitisation --- molecular subtypes --- preclinical studies --- bladder cancer cell lines --- latent cancer --- prostate cancer --- autopsy --- prognostic index --- prediction model --- mortality --- screening trial --- renal cell carcinoma --- PD-1 --- PD-L1 --- biomarkers --- immune checkpoint inhibitors --- prostatic neoplasms --- positron-emission tomography --- decision making --- tumor thrombus --- metastasectomy --- postoperative complications --- oncological outcomes --- radical cystectomy --- AHNAK2 --- prognosis --- dog --- comparative oncology --- inflammation --- prostatic atrophy --- preneoplastic lesion --- biomarker --- urine --- machine learning --- TRIPOD --- liquid biopsy --- glutaminase --- immunohistochemistry --- in situ methods --- prostate --- PSMA-RLT --- 177Lu-PSMA --- PSA --- mCRPC --- urinary bladder neoplasms --- Bacillus Calmette–Guérin (BCG) --- immunotherapy --- divergent differentiation --- variant morphology --- survival --- stereotactic body radiotherapy --- frail patients --- cancer --- metastasis --- genomic analysis --- microenvironment --- tumor ecology --- game theory --- fluorescence confocal microscopy --- prostate biopsy --- ablation margins --- focal therapy --- sphingosine 1-phosphate receptor 1 --- bladder carcinoma --- cell migration --- epithelial–mesenchymal transition --- FTY-720 --- OIP5 --- papillary renal cell carcinoma --- PLK1 --- tumorigenesis --- therapy --- image-guided --- magnetic resonance imaging --- ultrasonography --- biopsy --- abiraterone --- enzalutamide --- docetaxel --- novel hormonal therapies --- comparative effectiveness --- real-world treatment pattern --- metastatic prostate cancer --- epiplakin --- diagnosis --- advanced urothelial carcinoma --- immune checkpoint inhibitor --- prognostic --- tumour mutational board --- genomic signatures --- ctDNA --- inflammatory indices --- urothelial carcinoma --- frailty --- prognostic factor --- psoas muscle --- Hounsfield units --- n/a --- Bacillus Calmette-Guérin (BCG) --- epithelial-mesenchymal transition --- Research. --- Chemistry.


Book
Tuberculosis Drug Discovery and Development 2019
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis and still represents one of the global health threats to mankind. The World Health Organization estimated more than 10 million new cases and reported more than 1.5 million deaths in 2019, thus ranking TB among the main causes of death due to a single pathogen. Standard anti-TB therapy includes four first-line antibiotics that should be administered for at least six months. However, in the case of multi- and extensively drug-resistant TB, second-line medications must be used and these frequently cause severe side effects resulting in poor compliance. Developing new anti-TB drug candidates is therefore of outmost importance. In this Special Issue dedicated to Tuberculosis Drug Discovery and Development, we present the main and latest achievements in the fields of drug and target discovery, host-directed therapy, anti-virulence drugs, and describe the development of two advanced compounds: macozinone and delpazolid. In addition, this Special Issue provides an historical perspective focused on Carlo Forlanini, the inventor of pneumothorax for TB treatment, and includes an overview of the state-of-the-art technologies which are being exploited nowadays in TB drug development. Finally, a summary of TB vaccines that are either approved or undergoing clinical trials concludes the Special Issue.


Book
Diagnostic, Prognostic and Predictive Biological Markers in Bladder Cancer - Illumination of a Vision 2.0
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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After our successful first Special Issue about bladder cancer, we proceeded with the second issue. Again, many international scientists submitted their newest research results in that extremely interesting field and followed our call for submissions. It is not only the collection and combination of old and new markers that could develop new possibilities, but also the focus on different classifications and sub-classifications that will unveil new ways in diagnostic and therapeutic approaches. It seems that the two established diagnostic tools will still play an important role, but new markers and diagnostics tools will present more detailed and more differentiated possibilities in the treatment of urinary bladder cancer. This second Special Issue is full of scientific results that could provide new ways to help patients with instruments for early diagnostics and with predictive and prognostic markers on their way to finding new and personalized strategies for therapy. The editors thank all of the submitting authors for their efforts and time spent on each manuscript. We hope that this Special Issue will prove useful to research work in bladder cancer in the future. We hope that many talented researchers will use multiple forms of art to improve their professional successes and to ameliorate diagnostics and therapy in bladder cancer.


Book
Advanced Signal Processing in Wearable Sensors for Health Monitoring
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Smart, wearables devices on a miniature scale are becoming increasingly widely available, typically in the form of smart watches and other connected devices. Consequently, devices to assist in measurements such as electroencephalography (EEG), electrocardiogram (ECG), electromyography (EMG), blood pressure (BP), photoplethysmography (PPG), heart rhythm, respiration rate, apnoea, and motion detection are becoming more available, and play a significant role in healthcare monitoring. The industry is placing great emphasis on making these devices and technologies available on smart devices such as phones and watches. Such measurements are clinically and scientifically useful for real-time monitoring, long-term care, and diagnosis and therapeutic techniques. However, a pertaining issue is that recorded data are usually noisy, contain many artefacts, and are affected by external factors such as movements and physical conditions. In order to obtain accurate and meaningful indicators, the signal has to be processed and conditioned such that the measurements are accurate and free from noise and disturbances. In this context, many researchers have utilized recent technological advances in wearable sensors and signal processing to develop smart and accurate wearable devices for clinical applications. The processing and analysis of physiological signals is a key issue for these smart wearable devices. Consequently, ongoing work in this field of study includes research on filtration, quality checking, signal transformation and decomposition, feature extraction and, most recently, machine learning-based methods.


Book
Advances in DNA Vaccines
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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DNA is a rapidly developing vaccine platform for cancer and infectious and non-infectious diseases. Plasmids are used as immunogens to encode proteins to be further synthesized in vaccine recipients. DNA is mainly synthetic, ensuring enhanced expression in the cells of vaccine recipients (mostly mammalians). Their introduction into the host induces antibody and cellular responses. The latter are often more pronounced, and mimic the events occurring in infection, especially viral. There are a few distinct ways in which the vaccine antigen can be processed and presented, which determine the resulting immune response and which can be manipulated. Routinely, the antigen synthesized within the host cell is processed by proteasome, loaded onto, and presented in a complex with MHC I molecules. Processing can be re-routed to the lysosome, or immunogen can be secreted for further presentation in a complex with MHC II. Apart from expression, vaccination efficacy depends on DNA delivery. DNA immunogens are generally administered by intramuscular or intradermal injections, usually followed by electroporation, which enhances delivery 1000-fold. Other techniques are also used, such as noninvasive introduction by biojectors, skin applications with plasters and microneedles/chips, sonication, magnetofection, and even tattooing. An intense debate regarding the pros and cons of different routes of delivery is ongoing. A number of studies have compared the effect of delivery methods at the level of immunogen expression, and the magnitude and specificity of the resulting immune response. According to some, the delivery route determines immunogenic performance; according to others, it can modulate the level of response, but not its specificity or polarity. The progress of research aiming at the optimization of DNA vaccine design, delivery, and immunogenic performance has led to a marked increase in their efficacy in large species and humans. New DNA vaccines for use in the treatment of infectious diseases, cancer, allergies, and autoimmunity are forthcoming. This Special Issue covers various aspects of DNA vaccine development.

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