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Home » Topics » Omics » Proteomics

Proteomics
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Financial chart and flag of China

Challenges in China spell trouble for Illumina, 10x and others

Sep. 8, 2023
By Annette Boyle

China’s recovery from its zero-COVID policy has failed to gain the momentum expected, with many experts predicting a slow or even negative growth rate. A slower economy, combined with a push toward self-reliance, bodes poorly for diagnostics manufacturers in the U.S. who may find themselves not just shut out of the huge market but facing stiffer competition around the globe. Further, policies designed to build a domestic next-generation sequencing industry have created headwinds for San Diego-based Illumina Inc. and others, noted Kyle Mikson and Alex Vukasin of Canaccord Genuity in an in-depth report.


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3D rendered illustration of the anatomy of a cancer cell
Cancer

Pan-cancer studies take pan-oramic view on proteogenomics

Aug. 22, 2023
By Mar de Miguel
The vast variety of tumors makes each cancer a world. For researchers, understanding the commonalities and divergences in their molecular underpinnings could help find successful treatments. Scientists from the Clinical Proteomic Tumor Analysis Consortium (CPTAC) have addressed these similarities and differences in 10 different types of cancer with two proteogenomic studies to unravel the genes that lead to cancer and the galaxy of interactions that regulate them.
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3D rendered illustration of the anatomy of a cancer cell
Cancer

Pan-cancer studies take pan-oramic view on proteogenomics

Aug. 21, 2023
By Mar de Miguel
The vast variety of tumors makes each cancer a world. For researchers, understanding the commonalities and divergences in their molecular underpinnings could help find successful treatments. Scientists from the Clinical Proteomic Tumor Analysis Consortium (CPTAC) have addressed these similarities and differences in 10 different types of cancer with two proteogenomic studies to unravel the genes that lead to cancer and the galaxy of interactions that regulate them.
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Neurology/Psychiatric

Map of brain autophagic vesicles could be a guide for neurodegenerative research

June 16, 2023
By Mar de Miguel
The degradation pathways of cellular components can be shared by different molecules or selectively replace different substances and organelles. In the brain, synaptic transmission involves signaling pathways for a wide range of molecules, vesicles and receptors that require constant recycling. A proteomic study from the University of Lausanne and the University of Fribourg sheds light on brain autophagy-selective routes in adolescent, adult and aged brains.
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Neurology/Psychiatric

Transcriptomic atlas classifies 40 brain diseases

May 3, 2023
By Mar de Miguel
The map of the genetic activity of the risk genes that affect the central nervous system (CNS) reveals the molecular signatures associated with the neurological pathologies in this organ. A study by researchers at McGill University in Canada and the Allen Institute for Brain Science in Washington compared 40 brain diseases with this technology and classified them into five groups whose members shared the same transcriptional pattern.
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Researchers work with a hibernating brown bear in winter.
Hematologic

Clues to clot prevention could come from layabout bears

April 14, 2023
By Anette Breindl
Researchers have gained new insights into physiological mechanisms that protect against blood clotting in immobilized individuals by studying animals that stay immobile for a good chunk of the year at a time: hibernating bears. “As a clinician, if you think about immobility, you always think about thrombosis,” Tobias Petzold told BioWorld. But his team’s work, which was published in the April 13, 2023, issue of Science, demonstrated that “immobility can trigger antithrombotic mechanisms.”
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Neurology/Psychiatric

Obsessive-compulsive disorder-related proteins identified in astrocyte compartments

April 13, 2023
By Mar de Miguel
The analysis of thousands of proteins in the brain has revealed the association of astrocytes with obsessive-compulsive disorder (OCD). A proteomic study by researchers from the University of California Los Angeles (UCLA) has identified them in different cellular compartments of astrocytes and neurons. One such protein, the postsynaptic protein SAPAP3, appeared to regulate the organization of the actin cytoskeleton. Its deficit in astrocytes could cause OCD.
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3D rendered illustration of a synapse cross-section
Neurology/Psychiatric

Reduced RNA editing reveals mitochondrial dysfunction in schizophrenia

April 11, 2023
By Mar de Miguel
RNA editing in schizophrenia (SCZ)-associated genes was decreased in postmortem brains of individuals of European descent, according to a study from the University of California, Los Angeles (UCLA). The scientists obtained the RNA editome from SCZ brains to detect the sequence changes in their RNA and observed hypoediting in noncoding regions related to mitochondrial function, such as the mitofusin-1 (MFN1) gene.
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Muscle anatomy illustration of man running
Endocrine/Metabolic

New method enables much more detailed look at exerkines, secreted proteins

Jan. 24, 2023
By Anette Breindl
Researchers at the Dana-Farber Cancer Institute have been able to identify proteins that were released from muscles during exercise in relatively small quantities. Using their method, the team was able to demonstrate that the neurotrophic factor prosaposin was produced during exercise. Prosaposin is “a well-known CNS neurotrophic factor, but has never been seen to come out of muscle or fat,” Bruce Spiegelman told BioWorld. Spiegelman is a researcher at the Dana-Farber Cancer Institute and Stanley J. Korsmeyer Professor of Cell Biology and Medicine at Harvard Medical School.
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Diagram of nitrosylation in Alzheimer's
Neurology/Psychiatric

Nitric oxide-modified proteins reveal sex differences in Alzheimer’s

Dec. 19, 2022
By Mar de Miguel
Alzheimer’s disease has a higher incidence in women. This sex difference was associated with a modification of certain proteins of the immune system. According to a recent study, the drop in estrogen with menopause increased the expression in the brain of a neurotransmitter, nitric oxide (NO), generating the S-nitrosylation of complement factor C3 (abbreviated SNO-C3), which activated the microglia.
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