Background: Lung cancer is a cancer of the elderly, with a median age at diagnosis of 71. More than one-third of people diagnosed with lung cancer are over 75 years old. Immune checkpoint inhibitors (ICIs) are special antibodies that target a pathway in the immune system called the programmed cell death 1/programmed cell death-ligand 1 (PD-1/PD-L1) pathway.
View Article and Find Full Text PDFCochrane Database Syst Rev
July 2024
This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To evaluate the effectiveness and safety of immune checkpoint inhibitors (ICI) as monotherapy or in combination compared to standard of care for elderly people (≥ 65 years) with non-small cell lung cancer (NSCLC).
View Article and Find Full Text PDFBackground: New strategies in immunotherapy with specific antigens that trigger an anti-tumour immune response in people with lung cancer open the possibility of developing therapeutic vaccines aimed at boosting the adaptive immune response against cancer cells.
Objectives: To evaluate the effectiveness and safety of different types of therapeutic vaccines for people with advanced non-small cell lung cancer.
Search Methods: We searched CENTRAL, MEDLINE, Embase, Wanfang Data, and China Journal Net (CNKI) up to 22 August 2023.
Purpose: Cancer patients are at risk of severe COVID-19 infection, and vaccination is recommended. Nevertheless, we observe a failure of COVID-19 vaccines in this vulnerable population. We hypothesize that senescent peripheral T-cells alter COVID-19 vaccine-induced immunity.
View Article and Find Full Text PDFThe marine pathogen Vibrio vulnificus senses and responds to environmental stimuli via two chemosensory systems and 42-53 chemoreceptors. Here, we present an analysis of the V. vulnificus Aer2 chemoreceptor, VvAer2, which is the first V.
View Article and Find Full Text PDFPurpose: Universal cancer peptide-based vaccine (UCPVax) is a therapeutic vaccine composed of two highly selected helper peptides to induce CD4+ T helper-1 response directed against telomerase. This phase Ib/IIa trial was designed to test the safety, immunogenicity, and efficacy of a three-dose schedule in patients with metastatic non-small-cell lung cancer (NSCLC).
Patients And Methods: Patients with refractory NSCLC were assigned to receive three vaccination doses of UCPVax (0.
The Aer2 chemoreceptor from Pseudomonas aeruginosa is an O sensor involved in stress responses, virulence, and tuning the behavior of the chemotaxis (Che) system. Aer2 is the sole receptor of the Che2 system. It is soluble, but membrane associated, and forms complexes at the cell pole during stationary phase.
View Article and Find Full Text PDFBackground: Studies have reported a beneficial role of the addition of trastuzumab to platin-5-FU based chemotherapy in first-line advanced HER2 positive gastroesophageal adenocarcinoma (GEA). However, the effect of taxanes combined with platin-5FU + trastuzumab (PFT) is understudied.
Methods: We performed a retrospective cohort study to evaluate the interest of taxanes among HER2-positive advanced GEA patients treated with PFT.
In this study, we provide the first characterization of a chemoreceptor from Leptospira interrogans, the cause of leptospirosis. This receptor is related to the Aer2 receptors that have been studied in other bacteria. In those organisms, Aer2 is a soluble receptor with one or two PAS-heme domains and signals in response to O binding.
View Article and Find Full Text PDFBackground: Cabazitaxel was shown to improve overall survival (OS) in patients with metastatic castration-resistant prostate cancer (mCRPC) after abiraterone/enzalutamine and docetaxel failure, though benefit by the presence of DNA damage repair (DDR) defects is unknown. With the advent of poly(adenosine diphosphate-ribose) polymerase inhibitors (PARPi) in partially overlapping indications with cabazitaxel, we aimed to determine cabazitaxel activity in men with mCRPC according to their DDR status.
Methods: This is a retrospective multicenter study that enrolled patients with mCRPC treated with cabazitaxel who had undergone DDR tumour tissue profiling.
The Aer2 receptor from has an O-binding PAS-heme domain that stabilizes O via a Trp residue in the distal heme pocket. Trp rotates ∼90° to bond with the ligand and initiate signaling. Although the isolated PAS domain is monomeric, both in solution and in a cyanide-bound crystal structure, an unliganded structure forms a dimer.
View Article and Find Full Text PDFCorticosteroids are among the most prescribed drugs in oncology. The indications range from cancer-related indications for refractory symptoms, anti-cancer effects mainly in hematology, supportive measures for cancer-specific treatments and more recently immune-related adverse events induced by modern immunotherapies. In oncological emergencies, corticosteroids are common first-line treatments because of their rapid effect and wide variety of actions.
View Article and Find Full Text PDFPseudomonas aeruginosa is an opportunistic pathogen that senses and responds to its environment via four chemosensory systems. Oxygen activates the Che2 chemosensory system by binding to the PAS-heme domain of the Aer2 receptor. Ostensibly, the output of Che2 occurs via its response regulator CheY2, but controversy persists over CheY2's exact role.
View Article and Find Full Text PDFAdaptive Immune responses generated by SARS-CoV-2 virus in convalescent patients according to disease severity remain poorly characterized. To this end, we designed a prospective study (NCT04365322) that included 60 COVID-19 convalescent patients (1-month post infection) in two cohorts respectively entitled mild illness and severe pneumonia. The monitoring of peripheral immune responses was performed using IFNᵧ ELISpot assay.
View Article and Find Full Text PDFAngiopoietin-2 (ANGPT2) is a prognostic factor in metastatic colorectal cancer (CRC). Nevertheless, it remains to be elucidated which molecular characteristics make up the ANGPT2-related poor-prognosis CRC subset. Public transcriptomic datasets were collected from Gene Expression Omnibus GEO and with the TCGAbiolinks R-package for the TCGA.
View Article and Find Full Text PDFGerm-cell tumors are the most common solid tumors in young men. The follow-up of these patients is very important in their management. In stage I testicular cancer, surveillance is the standard for low-risk disease.
View Article and Find Full Text PDFTesticular cancers are the most frequent and the most curable cancers in young men. Treatments of these cancers represent a great success with cure rate over to 95 %. However, chemotherapy side effects may occur during or after several years post-treatment.
View Article and Find Full Text PDFGoal: Long-term evaluation of the incidence of sexual dysfunction from patients who were treated by orchidectomy, chemotherapy, and retroperitoneal lymphadenectomy for testicular cancer.
Methods: In 2018, patients who were treated in two academic hospitals by orchiectomy, chemotherapy, and retroperitoneal lymphadenectomy, and were in complete remission, were included. The patients included in this study filled the survey, which covered aspects of their sexuality (the Male Sexual Health Questionnaire) and answered additional questions, which evaluated psychological impact and modification of their sexuality since the management of their cancer.
Background: Enterocolitis is a rare, but serious gastrointestinal complication associated with docetaxel-based chemotherapy in patients with cancer. The incidence, clinical presentation and outcome of enterocolitis in patients with cancer treated with docetaxel-based chemotherapy was assessed in this study Patients and Methods: All patients treated with docetaxel for cancer between January 2010 and December 2014 at the University Hospital of Besançon were identified and their medical records reviewed.
Results: During this period, 1,227 patients received docetaxel chemotherapy and gastrointestinal events occurred in 381 (31.
Purpose: The aim of this study was to determine the prevalence of adherence to adjuvant hormonal therapy (AHT) and to identify risk factors for medication non-adherence in clinical practice in patients with early-stage hormone receptor (HR)-positive breast cancer (BC) previously treated with chemotherapy.
Methods: We carried out a cross-sectional, observational, prospective, and multicenter survey based on a structured self-report postal questionnaire (35 items investigating six areas). A sample of 474 patients was drawn from 676 patients potentially eligible.
Axitinib is approved with indication in patients with advanced renal cell carcinoma (RCC). Due to the localization of this cancer, physicians sometimes have to deal with hemodialyzed patients. Data exploring hemodialysis (HD) impact on axitinib pharmacokinetic (PK) or safety are lacking.
View Article and Find Full Text PDFThe Aer2 chemoreceptor from contains a PAS sensing domain that coordinates -type heme and signals in response to the binding of O, CO, or NO. PAS-heme structures suggest that Aer2 uniquely coordinates heme via a His residue on a 3 helix (H234 on Eη), stabilizes O binding via a Trp residue (W283), and signals via both W283 and an adjacent Leu residue (L264). Ligand binding may displace L264 and reorient W283 for hydrogen bonding to the ligand.
View Article and Find Full Text PDFChlamydia is a medically important bacterium that infects eukaryotic cells. Temporal expression of chlamydial genes during the intracellular infection is proposed to be regulated by changes in DNA supercoiling levels. To understand how chlamydial supercoiling levels are regulated, we purified and analyzed three putative Chlamydia trachomatis topoisomerases.
View Article and Find Full Text PDFHelicobacter pylori is a bacterial pathogen colonizing half of the world's human population. It has been implicated in a number of gastric diseases, from asymptomatic gastritis to cancer. It is characterized by an amazing genetic variability that results from high mutation rates and efficient DNA homologous recombination and transformation systems.
View Article and Find Full Text PDFFEMS Microbiol Lett
October 2010
Helicobacter pylori infects the stomach of about half of the world's human population, frequently causing chronic inflammation at the origin of several gastric pathologies. One of the most remarkable characteristics of the species is its remarkable genomic plasticity in which homologous recombination (HR) plays a critical role. Here, we analyzed the role of the H.
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