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COVID-19 studies should provide sex-disaggregated data, researchers warn

Researchers have warned that studies examining sex-specific responses to infection with SARS-CoV-2 must provide sex-disaggregated data.

21 Jun 2021

Study reveals how immune cells coordinate their swarming behavior to eliminate pathogens

The body is well protected against invading pathogens by barriers such as the skin. But if you injure yourself and break your skin, pathogens can easily enter your body through the wound and cause severe infections.

21 Jun 2021

Could urine tests predict kidney injury and mortality in COVID-19?

A team of scientists from the Columbia University, New York, has recently identified a potential biomarker to predict acute kidney injury in COVID-19 patients. By analyzing urine samples of 444 COVID-19 patients, they have revealed that the urinary level of neutrophil gelatinase-associated lipocalin (NGAL) can be used to determine the severity and duration of acute kidney and tubular injuries, as well as to predict the risk of mortality in acute COVID-19 patients.

15 Jun 2021

Study suggests COVID-19 in children is milder than the flu

Researchers retrospectively analyzed the medical records of children in Turkey hospitalized because of coronavirus disease 2019 (COVID-19) or influenza and found COVID-19 to be milder than influenza in this group.

14 Jun 2021

Major anti-cancer protein released by neutrophils selectively kills tumor cells

A study published in the June 10, 2021 issue of Cell describes a remarkable new mechanism by which the body's own immune system can eliminate cancer cells without damaging host cells.

10 Jun 2021

Pathogenic airway neutrophilia drives ARDS in Black patients with severe COVID-19 in case study

Researchers from the US used a systems immunology approach where they combined high-dimensional flow cytometry and multi-omics single-cell sequencing analyses of immune profiles taken from the airways and matching blood samples of Black/AA patients.

9 Jun 2021

Could sustained inflammation following mild to moderate COVID-19 be a driver of long COVID?

A new study describes the discovery of sustained though low-level rises in inflammatory mediators and immune cells, as well as the loss of some subsets of naïve un-activated cells. This may indicate a widespread though muted immune-mediated inflammatory response in these patients.

7 Jun 2021

Mast cell activation may underlie inflammation in severe COVID-19

A new preprint research paper posted to the medRxiv* server points to mast cells as major culprits in the etiology of severe and critical COVID-19. This could suggest suitable therapeutic and preventive interventions to reduce the morbidity and mortality of this viral illness.

3 Jun 2021

Could a green tea compound combat SARS-CoV-2?

Researchers recently published an article that reviewed the mechanisms by which EGCG could inhibit SARS-CoV-2 infection and the various syndromes caused by COVID-19.

3 Jun 2021

New insight into how platelets help resolve bacterial lung inflammation

Treating patients with acute respiratory failure is a constant challenge in intensive care medicine. In most cases, the underlying cause is lung inflammation triggered by a bacterial infection or - more rarely, despite being frequently observed at present due to the corona pandemic - a viral infection.

2 Jun 2021

Depleting SIRPα-deficient in macrophages activate tumor antigen-specific cytotoxic T cells

In a study that will be published in Nature Communications on May 28, 2021, a research team led by Dr. Yuan Liu from Georgia State University reports that intratumoral SIRPα-deficient macrophages activate tumor antigen-specific cytotoxic T cells to eliminate various syngeneic cancers under radiotherapy.

2 Jun 2021

Researchers find natural metabolites help SARS-CoV-2 escape antibodies

An international team of scientists has identified a human molecule — biliverdin — as a potential severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) target. The binding of the heme metabolite to the N-terminal domain of SARS-CoV-2 is associated with the virus’s ability to dodge the immune system by suppressing antibody binding to the spike protein.

2 Jun 2021

SARS-CoV-2 NSP14 induces potent inflammation via NF-κB pathways, finds study

SARS-CoV-2 has a single-stranded RNA genome encoding both structural and non-structural proteins. Of these, the latter is known to play a variety of roles in viral replication and the assembly of new viral particles, as well as in suppressing cellular immune responses. A new study reports the activity of one such protein, the non-structural protein 14 (NSP14), which activates the inflammatory mediator NF-κB to trigger intense inflammation.

31 May 2021

Researchers identify defensins as potential anti-SARS-CoV-2 agents

A recent study conducted at the Ohio State University, USA, and the Fudan University, China, has revealed that alpha-defensin human neutrophil peptide 1 (HNP1), a cationic antimicrobial peptide, can prevent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from infecting cells by destabilizing the viral spike protein and disrupting spike-mediated viral envelop – host cell membrane fusion.

31 May 2021

The potential therapeutic value of CDK6 inhibitors in critical COVID-19

While drug repurposing has been explored in the context of the current coronavirus disease 2019 (COVID-19) pandemic, the success of this strategy has been limited so far. A new study, released as a preprint on the medRxiv* server, describes a new method of identifying a promising hit among drugs already in use.

24 May 2021

Facets of SARS-CoV-2 infection and animal models

A new study in the journal Frontiers in Cell and Developmental Biology discusses the ribonucleic acid (RNA) genome of the virus, and the mechanisms by which it establishes infection within the host cell. The researchers also summarize the development of animal models of COVID-19, which will both help understand the clinical features of the illness, and indicate new approaches for the treatment of the infection.

21 May 2021

Are COVID-19-related complications in children explained by abnormal immune responses?

A common theme in reports on COVID-19 around the world has been the large number of children who have not been infected or shown signs of disease. However, though the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes less acute infection in this age group, it is associated with a severe immune-mediated multisystemic illness called multisystem inflammatory syndrome in children (MIS-C).

20 May 2021

Antithrombotic endothelial dysfunction is prevented by Tie2 activation in severe COVID-19

Researchers from the US recently assessed if severe COVID-19 is linked to procoagulant dysfunction of the endothelium and changes in the Tie2-angiopoietin axis. They assessed circulating endothelial markers in a study cohort of 98 patients with mild, moderate, or severe COVID-19. This study is published on the medRxiv* preprint server.

19 May 2021

Heart Research UK awards grant for a research project investigating how COVID-19 damages blood vessels

University of Dundee project investigating the role of inflammation in blood vessel damage in COVID-19 patients receives grant from Heart Research UK

17 May 2021

Comprehensive blood atlas of COVID-19 identifies hallmarks of disease severity

Researchers in the UK have presented a multi-omics integrated blood atlas that delineates the host immune response in patients with coronavirus disease 2019 (COVID-19) of varying severity, providing a unique reference resource for the interpretation of datasets generated from interventional trials.

13 May 2021

Neutrophils News and Research

COVID-19 studies should provide sex-disaggregated data, researchers warn

Study reveals how immune cells coordinate their swarming behavior to eliminate pathogens

Could urine tests predict kidney injury and mortality in COVID-19?

Study suggests COVID-19 in children is milder than the flu

Major anti-cancer protein released by neutrophils selectively kills tumor cells

Pathogenic airway neutrophilia drives ARDS in Black patients with severe COVID-19 in case study

Could sustained inflammation following mild to moderate COVID-19 be a driver of long COVID?

Mast cell activation may underlie inflammation in severe COVID-19

Could a green tea compound combat SARS-CoV-2?

New insight into how platelets help resolve bacterial lung inflammation

Depleting SIRPα-deficient in macrophages activate tumor antigen-specific cytotoxic T cells

Researchers find natural metabolites help SARS-CoV-2 escape antibodies

SARS-CoV-2 NSP14 induces potent inflammation via NF-κB pathways, finds study

Researchers identify defensins as potential anti-SARS-CoV-2 agents

The potential therapeutic value of CDK6 inhibitors in critical COVID-19

Facets of SARS-CoV-2 infection and animal models

Are COVID-19-related complications in children explained by abnormal immune responses?

Antithrombotic endothelial dysfunction is prevented by Tie2 activation in severe COVID-19

Heart Research UK awards grant for a research project investigating how COVID-19 damages blood vessels

Comprehensive blood atlas of COVID-19 identifies hallmarks of disease severity

Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

From Puberty to Menopause: Clue’s CEO, Audrey Tsang on the Power of Femtech

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