scholarly journals Bcl-2 Inhibition to Overcome Resistance to Chemo- and Immunotherapy

2018 ◽  
Vol 19 (12) ◽  
pp. 3950 ◽  
Author(s):  
Marilina García-Aranda ◽  
Elisabet Pérez-Ruiz ◽  
Maximino Redondo

Abstract: According to the World Health Organization (WHO), cancer is a leading cause of death worldwide. The identification of novel targets for cancer treatment is an area of intense work that has led Bcl-2 over-expression to be proposed as one of the hallmarks of cancer and Bcl-2 inhibition as a promising strategy for cancer treatment. In this review, we describe the different pathways related to programmed cell death, the role of Bcl-2 family members in apoptosis resistance to anti-cancer treatments, and the potential utility of Bcl-2 inhibitors to overcome resistance to chemo- and immunotherapy.

2020 ◽  
Author(s):  
Esat Namal ◽  
Nur Dinc ◽  
Sezer Saglam ◽  
Ali Vefa Ozturk ◽  
Safiye Koculu ◽  
...  

Abstract Background/Aim: Severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) has deeply affected life all over the World. The World Health Organization named this disease as COVID-19. The most important factor in the transmission of the disease is asymptomatic carriers. We’ve tested all oncology patients, that receive anti-cancer therapy, for COVİD-19 to prevent asymptomatic oncology patients from spreading infection and to make the decision to postpone chemotherapy in infected patients. Then, we analyzed the clinical and radiological findings of infected patients.Materials and Methods: Oncology patients who have indications of receiving anti-cancer treatment in the hospital were tested for COVID-19, two day prior to their treatment even if they were asymptomatic by collecting nasopharyngeal and oropharyngeal swab specimens for RT-PCR for viral RNA detection. Positive patients, underwent inspiratory phase of chest computed tomography (CT) examination. Infected patients were given the recommended treatment for COVID-19. Anti-cancer treatment of all patients that had positive PCR results was delayed for 14 days.Results: PCR test was positive in 28 of 312 patients that we tested, and the positivity rate was 8.9%. Three patients (10.7%) had symptoms; 2 of whom had dyspnea and cough, and 1 had headache, and 25 patients (89.3%) had no symptoms.Conclusion: In oncology patients, who are receiving anti-cancer treatment, we have to recognize the asymptomatic COVID-19 infection. We recommend testing for COVID-19 in oncology patients receiving chemotherapy, periodically or before each anti-cancer treatment, in order to continue their treatment without any problems and to prevent the risk of transmission.


2020 ◽  
Vol 134 (21) ◽  
pp. 2897-2927
Author(s):  
Alexa N. Carrera ◽  
Marianne K.O. Grant ◽  
Beshay N. Zordoky

Abstract Cardiovascular complications have been frequently reported in cancer patients and survivors, mainly because of various cardiotoxic cancer treatments. Despite the known cardiovascular toxic effects of these treatments, they are still clinically used because of their effectiveness as anti-cancer agents. In this review, we discuss the growing body of evidence suggesting that inhibition of the cytochrome P450 1B1 enzyme (CYP1B1) can be a promising therapeutic strategy that has the potential to prevent cancer treatment-induced cardiovascular complications without reducing their anti-cancer effects. CYP1B1 is an extrahepatic enzyme that is expressed in cardiovascular tissues and overexpressed in different types of cancers. A growing body of evidence is demonstrating a detrimental role of CYP1B1 in both cardiovascular diseases and cancer, via perturbed metabolism of endogenous compounds, production of carcinogenic metabolites, DNA adduct formation, and generation of reactive oxygen species (ROS). Several chemotherapeutic agents have been shown to induce CYP1B1 in cardiovascular and cancer cells, possibly via activating the Aryl hydrocarbon Receptor (AhR), ROS generation, and inflammatory cytokines. Induction of CYP1B1 is detrimental in many ways. First, it can induce or exacerbate cancer treatment-induced cardiovascular complications. Second, it may lead to significant chemo/radio-resistance, undermining both the safety and effectiveness of cancer treatments. Therefore, numerous preclinical studies demonstrate that inhibition of CYP1B1 protects against chemotherapy-induced cardiotoxicity and prevents chemo- and radio-resistance. Most of these studies have utilized phytochemicals to inhibit CYP1B1. Since phytochemicals have multiple targets, future studies are needed to discern the specific contribution of CYP1B1 to the cardioprotective and chemo/radio-sensitizing effects of these phytochemicals.


Author(s):  
Lara Bittmann

On December 31, 2019, WHO was informed of cases of pneumonia of unknown cause in Wuhan City, China. A novel coronavirus was identified as the cause by Chinese authorities on January 7, 2020 and was provisionally named "2019-nCoV". This new Coronavirus causes a clinical picture which has received now the name COVID-19. The virus has spread subsequently worldwide and was explained on the 11th of March, 2020 by the World Health Organization to the pandemic.


2021 ◽  
Vol 29 (Supplement_1) ◽  
pp. i45-i46
Author(s):  
A Peletidi ◽  
R Kayyali

Abstract Introduction Obesity is one of the main cardiovascular disease (CVD) risk factors.(1) In primary care, pharmacists are in a unique position to offer weight management (WM) interventions. Greece is the European country with the highest number of pharmacies (84.06 pharmacies per 100,000 citizens).(2) The UK was chosen as a reference country, because of the structured public health services offered, the local knowledge and because it was considered to be the closest country to Greece geographically, unlike Australia and Canada, where there is also evidence confirming the potential role of pharmacists in WM. Aim To design and evaluate a 10-week WM programme offered by trained pharmacists in Patras. Methods This WM programme was a step ahead of other interventions worldwide as apart from the usual measuring parameters (weight, body mass index, waist circumference, blood pressure (BP)) it also offered an AUDIT-C and Mediterranean diet score tests. Results In total,117 individuals participated. Of those, 97.4% (n=114), achieved the programme’s aim, losing at least 5% of their initial weight. The mean % of total weight loss (10th week) was 8.97% (SD2.65), and the t-test showed statistically significant results (P<0.001; 95% CI [8.48, 9.45]). The programme also helped participants to reduce their waist-to-height ratio, an early indicator of the CVD risk in both male (P=0.004) and female (P<0.001) participants. Additionally, it improved participants’ BP, AUDIT-C score and physical activity levels significantly (P<0.001). Conclusion The research is the first systematic effort in Greece to initiate and explore the potential role of pharmacists in public health. The successful results of this WM programme constitute a first step towards the structured incorporation of pharmacists in public’s health promotion. It proposed a model for effectively delivering public health services in Greece. This study adds to the evidence in relation to pharmacists’ CVD role in public health with outcomes that superseded other pharmacy-led WM programmes. It also provides the first evidence that Greek pharmacists have the potential to play an important role within primary healthcare and that after training they are able to provide public health services for both the public’s benefit and their clinical role enhancement. This primary evidence should support the Panhellenic Pharmaceutical Association, to “fight” for their rights for an active role in primary care. In terms of limitations, it must be noted that the participants’ collected data were recorded by pharmacists, and the analysis therefore depended on the accuracy of the recorded data, in particular on the measurements or calculations obtained. Although the sample size was achieved, it can be argued that it is small for the generalisation of findings across Greece. Therefore, the WM programme should be offered in other Greek cities to identify if similar results can be replicated, so as to consolidate the contribution of pharmacists in promoting public health. Additionally, the study was limited as it did not include a control group. Despite the limitations, our findings provide a model for a pharmacy-led public health programme revolving around WM that can be used as a model for services in the future. References 1. Mendis S, Puska P, Norrving B, World Health Organization., World Heart Federation., World Stroke Organization. Global atlas on cardiovascular disease prevention and control [Internet]. Geneva: World Health Organization in collaboration with the World Heart Federation and the World Stroke Organization; 2011 [cited 2018 Jun 26]. 155 p. Available from: http://www.who.int/cardiovascular_diseases/publications/atlas_cvd/en/ 2. Pharmaceutical Group of the European Union. Pharmacy with you throughout life:PGEU Annual Report [Internet]. 2015. Available from: https://www.pgeu.eu/en/library/530:annual-report-2015.html


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Maria Clara Saad Menezes ◽  
Alicia Dudy Müller Veiga ◽  
Thais Martins de Lima ◽  
Suely Kunimi Kubo Ariga ◽  
Hermes Vieira Barbeiro ◽  
...  

AbstractThe role of innate immunity in COVID-19 is not completely understood. Therefore, this study explored the impact of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection on the expression of Pattern Recognition Receptors (PRRs) in peripheral blood cells and their correlated cytokines. Seventy-nine patients with severe COVID-19 on admission, according to World Health Organization (WHO) classification, were divided into two groups: patients who needed mechanical ventilation and/or deceased (SEVERE, n = 50) and patients who used supplementary oxygen but not mechanical ventilation and survived (MILD, n = 29); a control group (CONTROL, n = 17) was also enrolled. In the peripheral blood, gene expression (mRNA) of Toll-like receptors (TLRs) 3, 4, 7, 8, and 9, retinoic-acid inducible gene I (RIGI), NOD-like receptor family pyrin domain containing 3 (NLRP3), interferon alpha (IFN-α), interferon beta (IFN-β), interferon gamma (IFN-γ), interferon lambda (IFN-λ), pro-interleukin(IL)-1β (pro-IL-1β), and IL-18 was determined on admission, between 5–9 days, and between 10–15 days. Circulating cytokines in plasma were also measured. When compared to the COVID-19 MILD group, the COVID-19 SEVERE group had lower expression of TLR3 and overexpression of TLR4.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Khuram Shahzad Ahmad ◽  
Muntaha Talat ◽  
Shaan Bibi Jaffri ◽  
Neelofer Shaheen

AbstractConventional treatment modes like chemotherapy, thermal and radiations aimed at cancerous cells eradication are marked by destruction pointing the employment of nanomaterials as sustainable and auspicious materials for saving human lives. Cancer has been deemed as the second leading cause of death on a global scale. Nanomaterials employment in cancer treatment is based on the utilization of their inherent physicochemical characteristics in addition to their modification for using as nano-carriers and nano-vehicles eluted with anti-cancer drugs. Current work has reviewed the significant role of different types of nanomaterials in cancer therapeutics and diagnostics in a systematic way. Compilation of review has been done by analyzing voluminous investigations employing ERIC, MEDLINE, NHS Evidence and Web of Science databases. Search engines used were Google scholar, Jstore and PubMed. Current review is suggestive of the remarkable performance of nanomaterials making them candidates for cancer treatment for substitution of destructive treatment modes through investigation of their physicochemical characteristics, utilization outputs and long term impacts in patients.


Viruses ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1346
Author(s):  
Priya Veluswamy ◽  
Max Wacker ◽  
Dimitrios Stavridis ◽  
Thomas Reichel ◽  
Hendrik Schmidt ◽  
...  

The SARS-CoV-2 virus causing COVID-19 disease has emerged expeditiously in the world and has been declared pandemic since March 2020, by World Health Organization (WHO). The destructive effects of SARS-CoV-2 infection are increased among the patients with pre-existing chronic conditions and, in particular, this review focuses on patients with underlying cardiovascular complications. The expression pattern and potential functions of SARS-CoV-2 binding receptors and the attributes of SARS-CoV-2 virus tropism in a physio-pathological state of heart and blood vessel are precisely described. Of note, the atheroprotective role of ACE2 receptors is reviewed. A detailed description of the possible detrimental role of SARS-CoV-2 infection in terms of vascular leakage, including endothelial glycocalyx dysfunction and bradykinin 1 receptor stimulation is concisely stated. Furthermore, the potential molecular mechanisms underlying SARS-CoV-2 induced clot formation in association with host defense components, including activation of FXIIa, complements and platelets, endothelial dysfunction, immune cell responses with cytokine-mediated action are well elaborated. Moreover, a brief clinical update on patient with COVID-19 disease with underlying cardiovascular complications and those who had new onset of cardiovascular complications post-COVID-19 disease was also discussed. Taken together, this review provides an overview of the mechanistic aspects of SARS-CoV-2 induced devastating effects, in vital organs such as the heart and vessels.


Author(s):  
Diletta Cozzi ◽  
Eleonora Bicci ◽  
Alessandra Bindi ◽  
Edoardo Cavigli ◽  
Ginevra Danti ◽  
...  

The infection caused by novel beta-coronavirus (SARS-CoV-2) was officially declared a pandemic by the World Health Organization in March 2020. However, in the last 20 years, this has not been the only viral infection to cause respiratory tract infections leading to hundreds of thousands of deaths worldwide, referring in particular to severe acute respiratory syndrome (SARS), influenza H1N1 and Middle East respiratory syndrome (MERS). Although in this pandemic period SARS-CoV-2 infection should be the first diagnosis to exclude, many other viruses can cause pulmonary manifestations and have to be recognized. Through the description of the main radiological patterns, radiologists can suggest the diagnosis of viral pneumonia, also combining information from clinical and laboratory data.


2020 ◽  
Vol 14 (4) ◽  
pp. 193-197
Author(s):  
Alan Glasper

In light of the emergence in China of COVID-19, the novel corona virus, emeritus professor Alan Glasper, from the University of Southampton discusses the role of the World Health Organization and other public health institutions in responding to potential new global pandemics and deliberates on the role of NHS staff in coping with infectious disease in clinical environments.


2018 ◽  
Vol 9 (2) ◽  
pp. 165-170
Author(s):  
Husni Husni

One of the effects is not maintaining hygiene during menstruation is able to hitkankes Rahim neck (cervical). Based on data from the World Health Organization (WHO),cervical cancer is the second most cancer in women aged 15-45 years after breast cancer. Noless than 500,000 new cases with 280,000 patient deaths occur each year worldwide.Indonesia was ranked first by the victims died at least 555 women per day and 200,000women annually. This study aims to determine the correlation between knowledge andattitude towards personal hygiene during menstruation action at SMAN 2 Bengkulu City. Thisresearch is descriptive analytic. The number of respondents 84 people with a samplingtechnique that stratified random sampling. Presentation of data is done by using a frequencydistribution table. The collection of data taken using a questionnaire. The data were analyzedusing univariate and bivariate analysis with Chi-Square.The results showed that therespondents are classified as good knowledge of (54.8%), attitude unfavorabel or does notsupport (53.6%), and the biggest acts (52.4%) is good. From the bivariate analysis were foundno correlation between knowledge against acts of personal hygiene during menstruation (p =0.794), and no relation attitude towards personal hygiene actions during menstruation (p =0.975).Required role of schools, educators, parents to be more proactive in enhancingknowledge and useful information about the process of menstruation and how to maintainhygiene during menstruation.


Sign in / Sign up

Export Citation Format

Share Document