Chaperones News and Research

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Researchers discover new mechanism of cancer treatment resistance

A surprising mechanism that makes some cancers treatment-resistant has been discovered by Weill Cornell Medicine and NewYork-Presbyterian investigators.

2 Nov 2023

Researchers study how cells adapt to stressful and complex environments

Imagine the life of a yeast cell, floating around the kitchen in a spore that eventually lands on a bowl of grapes. Life is good: food for days, at least until someone notices the rotting fruit and throws them out.

16 Oct 2023

Same cellular mechanism implicated in cystic fibrosis and rare disease cystinosis

University of Michigan researchers have discovered that the same cellular mechanism involved in a form of cystic fibrosis is also implicated in a form of a rare disease called cystinosis.

28 Aug 2023

Study unravels how mitochondria call for help when under stress

Originally, the powerhouses of higher cells, the mitochondria, were independent organisms. Researchers at Goethe University Frankfurt have investigated to what extent their metabolism has blended with that of their host cells in the course of evolution, using the example of a mitochondrial stress response.

28 Jul 2023

New insights into how dendritic cells arm T cells to fight disease

As part of the immune system, dendritic cells are essential for fighting body cells that have degenerated or are infected with a virus.

11 Jul 2023

CHOP researchers engineer stable, universal MHC-I molecules in a shorter timeframe

Class I major histocompatibility complex (MHC-I) proteins play an essential role in the immune system of all jawed vertebrates. The MHC-I displays peptide fragments of proteins from within the cell on the cell surface, "presenting" them to the immune system, which is constantly scanning the body for foreign or toxic antigens.

13 Jun 2023

Indirect inhibitors of cellular respiration for treatment of glioblastoma

A new research perspective was published in Oncotarget's Volume 14 on May 4, 2023, entitled, "Targeting cellular respiration as a therapeutic strategy in glioblastoma."

19 May 2023

Extracellular chaperones mediate the lysosomal degradation of misfolded proteins

When exposed to stressful conditions, several proteins tend to misfold and form aggregates inside or outside cells.

11 May 2023

Repair crews may move in to help fix the oxidative damage in protein factories

In a discovery fundamental to the inner workings of cells, scientists have discovered that if oxidative stress damages protein factories called ribosomes, repair crews may move in to help fix the damage so work can quickly resume.

24 Apr 2023

Elucidating the function of BRCA2 gene offers insight into cancer development

A new study shows exactly how the gene BRCA2, linked to susceptibility to breast and ovarian cancer, functions to repair damaged DNA.

3 Apr 2023

Study findings likely to guide the design of engineered TAPBPR variants with tailored HLA specificity

Researchers at Children's Hospital of Philadelphia (CHOP) have identified variants of a chaperone molecule that optimizes the binding and presentation of foreign antigens across the human population, which could open the door to numerous applications where robust presentation to the immune system is important, including cell therapy and immunization. The findings were published today in Science Advances.

24 Feb 2023

Research sheds light on how the cell selects suitable protein fragments for robust T-cell response

As task forces of the adaptive immune system, T lymphocytes are responsible for attacking and killing infected or cancerous cells.

30 Sep 2022

What is the role of N-glycans and calnexin-calreticulin chaperones in SARS-CoV-2 spike maturation?

A new study showed that SARS-CoV-2 Spike N-glycosylation patterns, intracellular lectins, and the associated molecular chaperones play crucial roles in the viral-host-cell invasion and function.

28 Sep 2022

Specific N-glycans regulate the development and functional maturation of SARS-CoV-2 spike protein

If you're an avid reader of science news, you've probably heard of viral proteins such as the COVID-19 spike protein.

27 Sep 2022

UBR7 protein acts as a histone chaperone during DNA replication, study finds

The protein UBR7 acts as a histone chaperone, regulating histone re-deposition at specific sites during DNA replication, according a recent study published in The EMBO Journal.

20 Dec 2021

New combination of drugs could break down harmful protein aggregates in Parkinson's disease

A new combination of drugs could fix the broken lysosomal enzyme pathway in Parkinson's disease-afflicted brain cells, according to a Northwestern Medicine study published in Neuron.

23 Nov 2021

Research elucidates how chaperones display "selective promiscuity" for specific proteins

A team of researchers at the University of Massachusetts Amherst has announced a major new advance in understanding how our genetic information eventually translates into functional proteins-;one of the building blocks of human life.

12 Oct 2021

Research reveals components of Sinbis virus ribonucleoproteins

To address this gap in research regarding the understanding of post-replicative alphavirus RNPs, scientists have created a novel proteome-wide approach known as viral RNA interactome capture (vRIC). This study is available in the bioRxiv* preprint server while awaiting peer review.

11 Oct 2021

SARS-CoV-2 causes ER-stress-activated unfolded protein response leading to cell death

A new study describes the varying ways in which the virus co-opts the machinery of the host cell following infection to evade or modulate the host immune response, alter the pattern of translation of viral proteins, and the release of new viral particles.

24 Jun 2021

Could GRP78 be a therapeutic target against COVID-19?

A new study by a team of researchers at the Keck School of Medicine, University of Southern California, USA, reports a potentially important therapeutic target in the form of a molecule called GRP78 that promotes the entry and protein production by many viruses. The team's paper has been published in the Journal of Biological Chemistry.

26 May 2021