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Reactive oxygen species are important components in cancer treatments

Reactive oxygen species (ROS) are highly reactive chemicals which contain oxygen radicals. Hypochlorous acid, peroxides, superoxide, singlet oxygen, alpha-oxygen and hydroxyl radicals are the major examples of ROS, which are familiar to persons from many walks of life as they are used in many domestic and industrial processes.

1 Jul 2021

How does dexamethasone therapy work in severe COVID-19?

The possible mechanisms that result in dexamethasone being an effective drug against severe SARS-CoV-2 infection are investigated in a new study. The paper’s authors advance the hypothesis that SARS-CoV-2 infection induces cell-specific insensitivity to glucocorticoids, possibly as an unintentional result of the viral replication cycle.

29 Jun 2021

Understanding new resting phase of stem cells could help put glioma tumors to sleep

Christopher Plaisier, an assistant professor of biomedical engineering in the Ira A. Fulton Schools of Engineering at Arizona State University, and Samantha O'Connor, a biomedical engineering doctoral student in the Plaisier Lab, are leading research into a new stage of the stem cell life cycle that could be the key to unlocking new methods of brain cancer treatment.

25 Jun 2021

City of Hope researchers identify how breast cancer cells acquire resistant traits

City of Hope, a world-renowned cancer research and treatment center, has identified how cancer cells in patients with early-stage breast cancer change and become resistant to hormone or combination therapies, according to a new study published in Nature Cancer.

24 Jun 2021

Researchers clarify cellular processes related to radiation resistance of pancreatic cancer cells

Pancreatic cancer is one of the deadliest cancer subtypes not just because it is difficult to diagnose early, but because it is inherently resistant to chemotherapy and radiotherapy.

8 Jun 2021

Genome-scale CRISPR screens pinpoint promising antiviral compounds against SARS-CoV-2

In a recent research paper currently available on the bioRxiv* preprint server, scientists in the US used genome-scale CRISPR knockout screens to identify factors that promote infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), revealing the potential for broad-spectrum activity across the coronavirus family.

7 Jun 2021

Cdkn1a transcript variant 2 is selectively elevated during natural aging across mouse tissues

Aging published "Cdkn1a transcript variant 2 is a marker of aging and cellular senescence" which reported that cellular senescence is a cell fate response characterized by a permanent cell cycle arrest driven primarily the by cell cycle inhibitor and tumor suppressor proteins p16Ink4a and p21Cip1/Waf1.

3 Jun 2021

Synthetic microRNA can serve as a novel therapeutic agent for treating human cancer

Oncotarget published "Multi-modal effects of 1B3, a novel synthetic miR-193a-3p mimic, support strong potential for therapeutic intervention in oncology" which reported that the authors comprehensively investigated miRNA-193a-3p's mode of action in a panel of human cancer cell lines, with a variety of genetic backgrounds, using 1B3, a synthetic microRNA mimic

2 Jun 2021

AMSBIO's custom lentivectors for labeling organoids

AMSBIO have supplied custom lentivectors to Francesco Pampaloni and his team at the Buchmann Institute for Molecular Life Sciences in Frankfurt, Germany allowing them to visualize cell nuclei and F-actin cytoskeleton in their organoids.

From AMS Biotechnology 1 Jun 2021

Stem cell therapy for COVID-19 and ARDS

In a review paper recently uploaded to the journal Biomedicine & Pharmacotherapy by Mahendiratta et al. (May 2021) the applicability of stem cells in treating severe SARS-CoV-2 infection is investigated, with regard to ARDS therapy.

5 May 2021

USP7 inhibitors could increase the anticancer effects of CDK1 compounds in cancer patients

Understanding the components that control cell division is fundamental to understanding how life works and how alterations in this delicate process can cause diseases such as cancer.

19 Apr 2021

Study solves mystery of how cells measure their size

Scientists have searched for years to understand how cells measure their size. Cell size is critical. It's what regulates cell division in a growing organism.

15 Apr 2021

Scientists compare DNA damaging properties of chemicals from vape products and cigarettes

Imperial Brands scientists have utilized Toxys' ToxTracker suite of stem-cell based in-vitro assays, which provide mechanistic insight into the potential DNA damaging properties of chemicals, comparing vape e-liquid samples and their aerosols to combustible cigarette smoke.

9 Apr 2021

Researchers offer large-scale screening of potential broad-spectrum SARS-CoV-2 antivirals

A new study describes the identification of new compounds from a library, with inhibitory activity against several coronaviruses. This study shows the utility of this method, besides identifying compounds that not only inhibit viral shedding in SARS-CoV-2 cultures, but have an immunomodulatory effect that may be useful in mitigating the damaging cytokine storm typical of severe or critical COVID-19.

2 Apr 2021

Study confirms the predictive value of molecular classification of hormone-sensitive breast cancer

Barcelona researchers at the Hospital Clínic-IDIBAPS Research Institute, the University of Barcelona and the SOLTI academic cancer research group have shown that the molecular classification of breast cancer, which divides it into four subtypes (Luminal A, Luminal B, HER2-enriched and Basal-like) is useful for predicting the benefits of treatment in patients with advanced hormone-sensitive breast cancer.

30 Mar 2021

Researchers examine circRNAs encoded by MERS-CoV, SARS-CoV-1 and SARS-CoV-2

New research published in Briefings in Bioinformaticsm has identified thousands of circRNAs in Betacoronaviruses, including MERS-CoV, SARS-CoV-1, and SARS-CoV-2, from the RNA-sequencing data of viral infections. These coronaviruses have a similar genomic structure with a diverse circRNA coding ability. Researchers have also systematically characterized circRNAs in coronaviruses, with regard to their size, sequence feature, expressions, genome, location preference, and functions. This opens the door to further explore and understand the mode of action of individual circRNAs in coronaviruses.

29 Mar 2021

Study identifies NCOA3 as a novel therapeutic target for melanoma

For the first time, activation of nuclear receptor coactivator 3 (NCOA3) has been shown to promote the development of melanoma through regulation of ultraviolet radiation (UVR) sensitivity, cell cycle progression and circumvention of the DNA damage response.

25 Mar 2021

Acute exposure of lung tissue to vape aerosol has lesser impact on gene expression than cigarette smoke

A new peer-reviewed study published in the journal Toxicological Research & Application shows acute exposure of a 3D human bronchial tissue model to e-cigarette aerosol has minimal impact on gene expression compared to smoke from combustible cigarettes.

21 Mar 2021

Study rethinks the role of ACE2 in SARS-CoV-2 viral entry

Researchers in the US recently infected a series of human lung and head/neck cancer cell lines with SARS-CoV-2 that expressed varying levels of ACE2 and the TMPRSS2 protease to reassess their role in viral entrance.

8 Mar 2021

Apoptosis is an important mediator of pathogenesis in animal coronavirus infection

A new paper in the journal Life presents an early review of the viral factors involved in initiating and effecting apoptosis within infected cells.