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The science objectives of the LISA mission have been defined under the implicit assumption of a 4-years continuous data stream. Based on the performance of LISA Pathfinder, it is now expected that LISA will have a duty cycle of ≈ 0.75 , which would reduce the effective span of usable data to 3 years. This paper reports the results of a study by the LISA Science Group, which was charged with assessing the additional science return of increasing the mission lifetime. We explore various observational scenarios to assess the impact of mission duration on the main science objectives of the mission. We find that the science investigations most affected by mission duration concern the search for seed black holes at cosmic dawn, as well as the study of stellar-origin black holes and of their formation channels via multi-band and multi-messenger observations. We conclude that an extension to 6 years of mission operations is recommended.The ageing of the population induces situations of large vulnerability and dependence. Home care usually remains the best response to comply with the person's wish, the family's desire, and the civil society's interest. However, there are circumstances where patient management in a nursing home (EHPAD) is the only solution. The present pandemic of coronavirus COVID-19 has highlighted the issue of EHPAD and their limitations to provide high quality care. To analyze the current position of EHPAD into the care chain and to understand difficulties to their functioning, it seems essential to seek out accelerated changes in the EHPAD since their establishment in 1999 and then in the light of the current crisis, propose possible solutions with a positive view of the role which each EHPAD will have to ensure for future.Models that recapitulate the complexity of human tumors are urgently needed to develop more effective cancer therapies. We report a bank of human patient-derived xenografts (PDXs) and matched organoid cultures from tumors that represent the greatest unmet need endocrine-resistant, treatment-refractory and metastatic breast cancers. We leverage matched PDXs and PDX-derived organoids (PDxO) for drug screening that is feasible and cost-effective with in vivo validation. Moreover, we demonstrate the feasibility of using these models for precision oncology in real time with clinical care in a case of triple-negative breast cancer (TNBC) with early metastatic recurrence. Our results uncovered a Food and Drug Administration (FDA)-approved drug with high efficacy against the models. Treatment with this therapy resulted in a complete response for the individual and a progression-free survival (PFS) period more than three times longer than their previous therapies. This work provides valuable methods and resources for functional precision medicine and drug development for human breast cancer.Radiotherapy is one of the most effective approaches to achieve tumor control in cancer patients, although healthy tissue injury due to off-target radiation exposure can occur. In this study, we used a model of acute radiation injury to the lung, in the context of cancer metastasis, to understand the biological link between tissue damage and cancer progression. We exposed healthy mouse lung tissue to radiation before the induction of metastasis and observed a strong enhancement of cancer cell growth. We found that locally activated neutrophils were key drivers of the tumor-supportive preconditioning of the lung microenvironment, governed by enhanced regenerative Notch signaling. Importantly, these tissue perturbations endowed arriving cancer cells with an augmented stemness phenotype. By preventing neutrophil-dependent Notch activation, via blocking degranulation, we were able to significantly offset the radiation-enhanced metastases. This work highlights a pro-tumorigenic activity of neutrophils, which is likely linked to their tissue regenerative functions.There is a growing need for systems that efficiently support the work of medical teams at the precision-oncology point of care. Here, we present the implementation of the Molecular Tumor Board Portal (MTBP), an academic clinical decision support system developed under the umbrella of Cancer Core Europe that creates a unified legal, scientific and technological platform to share and harness next-generation sequencing data. Automating the interpretation and reporting of sequencing results decrease the need for time-consuming manual procedures that are prone to errors. The adoption of an expert-agreed process to systematically link tumor molecular profiles with clinical actions promotes consistent decision-making and structured data capture across the connected centers. The use of information-rich patient reports with interactive content facilitates collaborative discussion of complex cases during virtual molecular tumor board meetings. Overall, streamlined digital systems like the MTBP are crucial to better address the challenges brought by precision oncology and accelerate the use of emerging biomarkers.The adenoma-carcinoma sequence is a well-accepted roadmap for the development of sporadic colorectal cancer. However, cellular heterogeneity in aberrant epithelial cells limits our understanding of carcinogenesis in colorectal tissues. Here, we performed a single-cell RNA sequencing survey of 54,788 cells from patient-matched tissue samples, including blood, normal tissue, para-cancer, polyp, and colorectal cancer. AG 825 manufacturer At each stage of carcinogenesis, we characterized cell types, transcriptional signatures, and differentially expressed genes of distinct cell populations. The molecular signatures of epithelial cells at normal, benign, and malignant stages were defined at the single-cell scale. Adenoma and carcinoma precursor cell populations were identified and characterized followed by validation with large cohort biopsies. Protein tyrosine kinases (PTKs) BMX and HCK were identified as potential drivers of adenoma initiation. Specific BMX and HCK upregulations were observed in adenoma precursor cell populations from normal and adenoma biopsies. Overexpression of BMX and HCK significantly promoted colorectal epithelial cell proliferation. Importantly, in the organoid culture system, BMX and HCK upregulations resulted in the formation of multilayered polyp-like buds protruding towards the organoid lumen, mimicking the pathological polyp morphology often observed in colorectal cancer. Molecular mechanism analysis revealed that upregulation of BMX or HCK activated the JAK-STAT pathway. In conclusion, our work improved the current knowledge regarding colorectal epithelial evolution during carcinogenesis at the single-cell resolution. These findings may lead to improvements in colorectal cancer diagnosis and treatment.Metabolic enzymes have an indispensable role in metabolic reprogramming, and their aberrant expression or activity has been associated with chemosensitivity. Hence, targeting metabolic enzymes remains an attractive approach for treating tumors. However, the influence and regulation of cysteine desulfurase (NFS1), a rate-limiting enzyme in iron-sulfur (Fe-S) cluster biogenesis, in colorectal cancer (CRC) remain elusive. Here, using an in vivo metabolic enzyme gene-based clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 library screen, we revealed that loss of NFS1 significantly enhanced the sensitivity of CRC cells to oxaliplatin. In vitro and in vivo results showed that NFS1 deficiency synergizing with oxaliplatin triggered PANoptosis (apoptosis, necroptosis, pyroptosis, and ferroptosis) by increasing the intracellular levels of reactive oxygen species (ROS). Furthermore, oxaliplatin-based oxidative stress enhanced the phosphorylation level of serine residues of NFS1, which prevented PANoptosis in an S293 phosphorylation-dependent manner during oxaliplatin treatment. In addition, high expression of NFS1, transcriptionally regulated by MYC, was found in tumor tissues and was associated with poor survival and hyposensitivity to chemotherapy in patients with CRC. Overall, the findings of this study provided insights into the underlying mechanisms of NFS1 in oxaliplatin sensitivity and identified NFS1 inhibition as a promising strategy for improving the outcome of platinum-based chemotherapy in the treatment of CRC.Increase in the surgical waiting list as a health consequence of the COVID-19 pandemic a Balearic perspective.BACKGROUND The emergence of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) and the sudden inflow of patients with severe COVID-19 (coronavirus disease 2019) symptoms increased demand for hospital and pre-hospital care, the latter being provided by emergency medical teams. The Polish Medical Air Rescue Services include the Helicopter Emergency Medical Service (HEMS) and the airplane-based Emergency Medical Service (EMS). This study aimed to present the experience of the Polish Medical Air Rescue Service during the first year of the COVID-19 pandemic and measures taken to protect patients, medical staff, and air crew from SARS-CoV-2 infection. MATERIAL AND METHODS We conducted a retrospective analysis of missions completed by the Polish Medical Air Rescue crews with respect to confirmed SARS-CoV-2 cases. We analyzed data from the medical records of the Polish Medical Air Rescue Service, which included flights to accidents and emergencies, and air patient transport missions, where medical assistance was provided to patients with confirmed SARS-CoV-2 infection in the first year of the pandemic in Poland. RESULTS Among the COVID-19 patients, the most common comorbidity was acute respiratory failure (41.58%). Emergency missions more often concerned older patients with sudden cardiac arrest, dyspnea, upper respiratory tract infection, stroke, and acute coronary syndromes. CONCLUSIONS During the first year of the COVID-19 pandemic in Poland, the Polish Medical Air Rescue Service implemented procedures to protect patients, medical staff, and air crew from SARS-CoV-2 infection. This study highlights the importance of using single-patient isolation units for patient transport between hospitals and for emergency hospital admissions when the SARS-CoV-2 status of the patients were unknown.BACKGROUND Malignant hypertension (MHT), one of the severest forms of hypertension, can have deleterious effects on various organs, such as renal failure, retinopathy, and encephalopathy. These types of organ damage are common complications of MHT, but in several previous cases, damage to other organs, such as the gastrointestinal tract or pancreas, resulting from small vessel lesions, has also been reported, and these cases have had severe clinical outcomes and a poor prognosis. CASE REPORT A 32-year-old male patient with untreated hypertension of a 5-year duration presented with breathlessness and edema. His blood pressure was 220/144 mmHg, and he had renal dysfunction, congestive heart failure, and hypertensive retinopathy. He immediately received treatment, including antihypertensive agents and intermittent hemodialysis, but experienced epigastric pain for several days. A cystic lesion appeared in the pancreatic head, and his serum pancreatic enzymes were elevated. Based on these findings, acute pancreatitis with a cystic lesion was diagnosed.
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