Macrophage News and Research

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A macrophage is a type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.

Drugs targeting neutrophils could reduce ARDS in severe COVID-19

Scientists in Taiwan recently published a report on their use of anti-neutrophil strategies to treat acute respiratory distress syndrome (ARDS) – a life-threatening condition that can arise in critical COVID-19 cases – in the journal Frontiers in Pediatrics.

15 Nov 2020

SARS-CoV-2-induces temporary loss of smell in mice

Now, a new study published on the preprint server bioRxiv in November 2020 presents the onset of olfactory dysfunction (loss of smell) in mice infected with the virus, examining this process at the cellular level. In doing so, this study throws more light on this curious symptom and COVID-19’s manifestations outside the lungs.

12 Nov 2020

Uracil point mutations found in SARS-CoV-2 variants alter innate immune responses

Tohoku University scientists have found that human editing enzymes are likely behind a type of mutation in the COVID-19 virus that stimulates the release of pro-inflammatory molecules called cytokines by immune cells in the body.

11 Nov 2020

A promising vaccine for treating poorly immunogenic tumors

Patients with cancer have multiple treatment options available to them today, but each has its drawbacks. Chemotherapy kills rapidly dividing cancer cells, but it also damages healthy cells in the body and often does not effectively prevent tumor metastasis or disease recurrence.

11 Nov 2020

COVID-19-associated pulmonary aspergillosis caused by aspergillus fumigatus

A new study published on the preprint server bioRxiv in November 2020 discusses the characteristics of COVID-19 associated pulmonary aspergillosis (CAPA).

10 Nov 2020

Novel super-activating macrophage receptor could explain hyper-inflammation in severe COVID-19

Immunity is a curious thing. While essential in protecting the body against invading pathogens and foreign antigens, it can also turn against the body and trigger destructive immunological processes. A new study published on the preprint server bioRxiv* in November 2020 reports on the role played by hyperactive macrophages in a range of acute and chronic hyper-inflammatory conditions.

10 Nov 2020

New biomaterial significantly reduces scar formation following wounds

Researchers at UCLA, Duke University and other collaborating institutions have developed a biomaterial that may significantly reduce scar formation after wounding, leading to more effective skin healing.

10 Nov 2020

ACE2 and TMPRSS2 not the only virus-receptors to mediate SARS-CoV-2 entry

However, a recent study published on the preprint server bioRxiv in November 2020 uncovers the major role played by the N-terminal domain of the SARS-CoV-2 virus in host infection. This could be of great use in measuring the usefulness of antibodies used in convalescent plasma therapy for COVID-19.

9 Nov 2020

Study shows SARS-CoV-2 direct heart muscle cell infection, cell death, loss of contractility

In the study, published on the pre-print journal bioRxiv, the researchers revealed that SARS-CoV-2-infected EHTs manifested the typical characteristics of myocarditis or heart inflammation. These include the stimulation of immune cells, heart cell death, and decreased contractile force generation.

8 Nov 2020

Innate immunity key to limiting viral load in COVID-19 cases

As the coronavirus disease 2019 (COVID-19) pandemic continues to cause many difficulties for public health authorities, research is ongoing to understand how the virus can cause fatal effects on those infected and thereby suggest effective preventive and therapeutic measures against it.

8 Nov 2020

A new method to improve the preclinical evaluation of CAR T cell therapies

Ludwig Cancer Research scientists have developed a method to significantly improve the preclinical evaluation of chimeric antigen-receptor (CAR) T cell therapies, in which the immune system's T cells are extracted from a patient, engineered to target a specific tumor-associated molecule and then grown and reinfused for cancer treatment.

6 Nov 2020

Children produce different antibodies in response to infection with new coronavirus

Children and adults produce different types and amounts of antibodies in response to infection with the new coronavirus, SARS-CoV-2, a new study from researchers at Columbia University Vagelos College of Physicians and Surgeons has found.

5 Nov 2020

"Training" the immune system with β-glucan compound may improve immune recovery

Immunotherapies, such as checkpoint inhibitor drugs, have made worlds of difference for the treatment of cancer.Most clinicians and scientists understand these drugs to act on what's known as the adaptive immune system, the T cells and B cells that respond to specific threats to the body.

30 Oct 2020

SARS-CoV-2 viroporin triggers NLRP3 inflammasome causing a severe inflammatory response

Now, a team of researchers at the University of Florida report that the SARS-CoV-2 viroporin triggers the NLR Family Pyrin Domain Containing 3 (NLRP3) inflammasome, which is responsible for the inflammatory pathology in severely ill COVID-19 patients.

30 Oct 2020

Antiviral inhibitor DDX42 shows broad activity against Chikungunya, HIV and SARS-CoV-2

By exploiting type 1 interferon's ability to foster an antagonistic cellular environment for viral replication, a research group from France pinpointed DEAD-box RNA helicase DDX42 as an intrinsic inhibitor of HIV, but also other pathogenic viruses such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and Chikungunya virus.

29 Oct 2020

Research shows why certain people infected with COVID-19 show no symptoms

Researchers worldwide have been surprised to see that individuals can be infected with the SARS-CoV-2 virus - the virus that produces COVID-19 - without showing symptoms. Since these individuals expose others to infection without knowing it, it is important to find an explanation and hopefully a solution to this.

29 Oct 2020