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Construction, evaluation, and AOP framework-based application of the EpPRS as a genetic surrogate for assessing environmental pollutants
CONCLUSIONS: EpPRSs can serve as a proxy for assessing pollutant internal exposure. The application of the EpPRS to disease risk assessment can reveal the toxic pathway and mode of action linking exposure and disease in detail, providing a basis for the development of environmental pollutant control strategies.PMID:37734146 | DOI:10.1016/j.envint.2023.108202
Source: Environment International - September 21, 2023 Category: Environmental Health Authors: Silu Chen Junyi Xin Zhutao Ding Lingyan Zhao Shuai Ben Rui Zheng Shuwei Li Huiqin Li Wei Shao Yifei Cheng Zhengdong Zhang Mulong Du Meilin Wang Source Type: research
Long non-coding RNAs in non-small cell lung cancer: Implications for preventing therapeutic resistance
Biochim Biophys Acta Rev Cancer. 2023 Sep 19:188982. doi: 10.1016/j.bbcan.2023.188982. Online ahead of print.ABSTRACTLung cancer has the highest mortality and morbidity rates among all cancers worldwide. Despite many complex treatment options, including radiotherapy, chemotherapy, targeted drugs, immunotherapy, and combinations of these treatments, efficacy is low in cases of resistance to therapy, metastasis, and advanced disease, contributing to low overall survival. There is a pressing need for the discovery of novel biomarkers and therapeutic targets for the early diagnosis of lung cancer and to determine the efficacy ...
Source: Biochimica et Biophysica Acta - September 21, 2023 Category: Biochemistry Authors: Wenjuan Liu Bingli Zuo Wenting Liu Yanfei Huo Nasha Zhang Ming Yang Source Type: research
Neuroticism as a moderator of symptom-related distress and depression in 4 noncancer end-of-life populations
The objective of this study was to examine the impact of neuroticism as a moderator of physical symptoms and development of depression in patients with amyotrophic lateral sclerosis (ALS), chronic obstructive pulmonary disease (COPD), end-stage renal disease (ESRD), and frailty in the last 6 months of life.METHODS: We met this objective using secondary data collected in the Dignity and Distress across End-of-Life Populations study. The data included N = 404 patients with ALS (N = 101), COPD (N = 100), ESRD (N = 101), and frailty (N = 102) in the estimated last 6 months of life, with a range of illness-related symptoms, ass...
Source: Palliative and Supportive Care - September 21, 2023 Category: Palliative Care Authors: Maia S Kredentser Corey S Mackenzie Susan E McClement Murray W Enns Diane Hiebert-Murphy Dallas J Murphy Harvey M Chochinov Source Type: research
A Review on the Antimutagenic and Anticancer Effects of Cysteamine
In conclusion, regarding the high safety profile of cysteamine and the current literature data presented in this article, cysteamine might be considered as an interesting molecule for the prevention and the treatment of cancer. Further clinical studies should be performed to support these data in humans.PMID:37731680 | PMC:PMC10508993 | DOI:10.1155/2023/2419444
Source: Adv Data - September 21, 2023 Category: Epidemiology Authors: Chun-Man Lee Source Type: research
Development of a high-performance label-free electrochemical immunosensor for early cancer diagnosis using anti-CEA/Ag-MOF/GO/GCE nanocomposite
Environ Res. 2023 Sep 19:117178. doi: 10.1016/j.envres.2023.117178. Online ahead of print.ABSTRACTIn order to detect carcinoembryonic antigen (CEA) as a tumor marker in lung cancer for early cancer diagnosis, this study aimed to develop a label-free electrochemical immunosensor based on the immobilization of an Anti-CEA antibody on a metal-organic framework (MOF)-graphene oxide nanocomposite modified glassy carbon electrode (Anti-CEA/Ag-MOF/GO/GCE). Ag-MOF/GO nanocomposite was prepared on the GCE surface using the ultrasonic irradiation method, and Anti-CEA antibody was subsequently immobilized on the surface. Analysis of ...
Source: Environmental Research - September 21, 2023 Category: Environmental Health Authors: Peng Huang Lingzhang Meng Jun Pang Haiting Huang Jing Ma Linlin He Parnian Amani Source Type: research
Site-specific delivery of cisplatin and paclitaxel mediated by liposomes: A promising approach in cancer chemotherapy
Environ Res. 2023 Sep 19:117111. doi: 10.1016/j.envres.2023.117111. Online ahead of print.ABSTRACTThe site-specific delivery of drugs, especially anti-cancer drugs has been an interesting field for researchers and the reason is low accumulation of cytotoxic drugs in cancer cells. Although combination cancer therapy has been beneficial in providing cancer drug sensitivity, targeted delivery of drugs appears to be more efficient. One of the safe, biocompatible and efficient nano-scale delivery systems in anti-cancer drug delivery is liposomes. Their particle size is small and they have other properties such as adjustable phy...
Source: Environmental Research - September 21, 2023 Category: Environmental Health Authors: Jianyong Zou Source Type: research
Durable complete response to early immunotherapy discontinuation in a kidney transplant recipient with advanced cutaneous squamous cell carcinoma: A case report and review of literature
CONCLUSION: Organ transplant recipients with complete response to immunotherapy for cutaneous squamous cell carcinoma may continue to respond despite early treatment cessation. This may reduce the risks of late immune-related adverse events and acute graft rejection.PMID:37734447 | DOI:10.1016/j.trim.2023.101932
Source: Transplant Immunology - September 21, 2023 Category: Transplant Surgery Authors: Ziyao Lu Mohammed Afzal Keisuke Shirai Source Type: research
Biological activities of the aerial and undergound parts of < em > Gymnadenia nigra < /em > Rchb.f. (syn. < em > Nigritella nigra < /em > (L.) Rchb. f.) from the Italian Alps
This study investigated the bioactivity of both aerial (GNAR) and underground (GNUG) parts of Gymnadenia nigra Rchb.f. (syn. Nigritella nigra (L.) Rchb. f.) (Orchidaceae). The obtained data proved interesting when the samples were tested in two adrenocortical cancer cell lines (SW13 and H295R). In particular, the GNAR 80% methanol extract distinctly inhibited their viability after 24 h at a concentration of 1 µg/µL by MTT assay and trypan blue dye exclusion method. Cell morphology evaluation by means Wright's staining also showed significant results, particularly in SW13 cells under the effect of both extracts. GNAR extr...
Source: Natural Product Research - September 21, 2023 Category: Biochemistry Authors: Sara Vitalini Beatrice Rubin Halenya Monticelli Susi Barollo Marco Redaelli Loris Bertazza Caterina Mian Maira Zorzan Stefania Garzoli Marcello Iriti Raffaele Pezzani Source Type: research
Effect of cycloastragenol and punicalagin on Prp(106-126) and A β(25-35) oligomerization and fibrillizaton
In this study, we have examined the effect of two NPs, cycloastragenol (CAG) and punicalagin (PCG), on the metal-induced oligomerization and aggregation of Aβ25-35 and PrP106-126 peptides. The peptide aggregation and inhibitory properties of both NPs were examined by the thioflavin-T (ThT) assay, MALDI-TOF, circular dichroism (CD) spectroscopy, and transmission electron microscopy (TEM). Among the two NPs, PCG significantly binds to the peptides, chelates metal ions (Cu2+ and Zn2+), inhibits peptide aggregation, substantially reduces oxidative stress, and controls the production of reactive oxygen species (ROS). Both NPs ...
Source: Biophysical Chemistry - September 21, 2023 Category: Chemistry Authors: Govinda R Navale Rahul Chauhan Saakshi Saini Partha Roy Kaushik Ghosh Source Type: research
Modeling the Development of Cellular Exhaustion and Tumor-Immune Stalemate
Bull Math Biol. 2023 Sep 21;85(11):106. doi: 10.1007/s11538-023-01207-7.ABSTRACTCellular exhaustion in various immune cells develops in response to prolonged stimulation and overactivation during chronic infections and in cancer. Marked by an upregulation of inhibitory receptors and diminished effector functions, exhausted immune cells are unable to fully eradicate the antigen responsible for the overexposure. In cancer settings, this results in a relatively small but constant tumor burden known as a localized tumor-immune stalemate. In recent years, studies have elucidated key aspects of the development and progression of...
Source: Bulletin of Mathematical Biology - September 21, 2023 Category: Bioinformatics Authors: Tyler Simmons Doron Levy Source Type: research
Characterization of histone chaperone MCM2 as a key regulator in arsenic-induced depletion of H3.3 at genomic loci
Toxicol Appl Pharmacol. 2023 Sep 19:116697. doi: 10.1016/j.taap.2023.116697. Online ahead of print.ABSTRACTArsenic exposure is associated with an increased risk of many cancers, and epigenetic mechanisms play a crucial role in arsenic-mediated carcinogenesis. Our previous studies have shown that arsenic exposure induces polyadenylation of H3.1 mRNA and inhibits the deposition of H3.3 at critical gene regulatory elements. However, the precise underling mechanisms are not yet understood. To characterize the factors governing arsenic-induced inhibition of H3.3 assembly through H3.1 mRNA polyadenylation, we utilized mass spect...
Source: Toxicology and Applied Pharmacology - September 21, 2023 Category: Toxicology Authors: Peipei Wu Su-Jiun Lin Danqi Chen Chunyuan Jin Source Type: research
ATR activation by Cr-DNA damage is a major survival response establishing late S and G2 checkpoints after Cr(VI) exposure
Toxicol Appl Pharmacol. 2023 Sep 19:116696. doi: 10.1016/j.taap.2023.116696. Online ahead of print.ABSTRACTInhalation exposure to hexavalent chromium is known to cause lung cancer and other pulmonary toxicity. Cellular metabolism of chromium(VI) entering cells as chromate anion produces different amounts of reactive Cr(V) intermediates and finally yields Cr(III). Direct reduction of Cr(VI) by ascorbate (Asc), the dominant metabolic reaction in vivo but not in standard cell cultures, skips production of Cr(V) but still permits extensive formation of Cr-DNA damage. To understand the importance of different forms of biologica...
Source: Toxicology and Applied Pharmacology - September 21, 2023 Category: Toxicology Authors: Sophia Valiente Casey Krawic Anatoly Zhitkovich Source Type: research
Different mechanisms of CD200-CD200R induce diverse outcomes in cancer treatment
Math Biosci. 2023 Sep 19:109072. doi: 10.1016/j.mbs.2023.109072. Online ahead of print.ABSTRACTThe CD200 is a cell membrane protein expressed by tumor cells, and its receptor CD200 receptor (CD200R) is expressed by immune cells including macrophages and dendritic cells. The formation of CD200-CD200R inhibits the cellular functions of the targeted immune cells, so CD200 is one type of the immune checkpoint and blockade CD200-CD200R formation is a potential cancer treatment. However, the CD200 blockade has opposite treatment outcomes in different types of cancers. For instance, the CD200R deficient mice have a higher tumor l...
Source: Mathematical Biosciences - September 21, 2023 Category: Statistics Authors: Kang-Ling Liao Kenton D Watt Tom Protin Source Type: research
Nutrition-associated health levels in persons with cancer: item response modelling based on the International Classification of Functioning, Disability and Health
CONCLUSIONS: The study constructed an evidence-based ICF scale for nutrition conditions in patients with cancer with 32-item and 2PLM for evaluating nutrition-associated health level in persons with cancer, including high validity and reliability.CLINICAL REHABILITATION IMPACT: The IRT model based on ICF provided a promising assessment tool to discriminate nutrition-associated health level of persons with cancer, and offered an auxiliary method for selecting rehabilitation intervention targets. This has the potential to lead to improved outcomes in cancer treatment and increased quality of life for cancer survivors.PMID:37...
Source: Health Physics - September 21, 2023 Category: Physics Authors: Jin-Jin Chen Zi-Yan Zhu Jia-Jia Bian Feng Lin Source Type: research
Oestrogen receptor-independent actions of oestrogen in cancer
Mol Biol Rep. 2023 Sep 20. doi: 10.1007/s11033-023-08793-8. Online ahead of print.ABSTRACTOestrogen, the primary female sex hormone, plays a significant role in tumourigenesis. The major pathway for oestrogen is via binding to its receptor [oestrogen receptor (ERα or β)], followed by nuclear translocation and transcriptional regulation of target genes. Almost 70% of breast tumours are ER + , and endocrine therapies with selective ER modulators (tamoxifen) have been successfully applied. As many as 25% of tamoxifen-treated patients experience disease relapse within 5 years upon completion of chemotherapy. In such cases, t...
Source: Molecular Biology Reports - September 21, 2023 Category: Molecular Biology Authors: Prarthana Gopinath Revathi Paramasivam Oviya Gopal Gopisetty Source Type: research
