Cell Guidance Systems Blog

Mind the gap: Next-generation cochlear implants

Mind the gap: Next-generation cochlear implants

Cochlear implants (CIs) do not produce the same rich sound experience that can be provided by properly functioning ears. One limitation on performance is the quality of connection CIs form with auditory nerves they electrically stimulate. This connection may be improved by co-implanting iPSC-derived otic neuronal progenitor cells to help bridge the gap. A “neurotrophic strip” containing slowly releasing growth factors that generate a growth factor gradient ensures these neurons extend in the right direction.

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Instant exosomes

Instant exosomes

Cell Guidance Systems is now offering a range of high-quality and well-characterized freeze-dried exosome samples from human cancer cell lines for research applications. These Instant exosomes are isolated using Exo-spin kits following a combination of precipitation and size exclusion chromatography (SEC).

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Lipid Quantification Methods

Lipid Quantification Methods

In order to study lipids, they must often be extracted first from tissues or cellular cultures and then quantified. There are various methods available for lipid quantification, ranging from state-of-the-art quantification using advanced technology to simpler benchtop solutions. But which technique is relevant for you?

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Exosome-rich super foods

Exosome-rich super foods

Anti-oxidants, omega-3, calcium and vitamins etc, have been linked to health benefits. Producers of foods containing these nutrients highlight these health-giving properties to promote sales. Might exosomes soon be added to the list? A growing understanding of the role of extracellular vesicles (EVs) points to the remarkable potential of food-derived exosomes (FDEs) as a distinct dietary component with nutritional benefits.

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Karyotyping and chromosomal instability

Karyotyping and chromosomal instability

Chromosomal alterations underlie numerous medical conditions, with clinical detection of chromosome changes being a key feature of genetic diagnostics. Chromosomal alterations are also important in research, affecting the behaviour of cells and impacting the interpretation of data generated with them.

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Drug bug: microbiome modulates medicine

Drug bug: microbiome modulates medicine

The goal of precision medicine is to understand the factors that contribute to the variability in the pharmacokinetics and pharmacodynamics of the drugs. It is now clear that the gut microbiome plays a critical role in the markedly different responses of individuals to identical drug therapy.

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English Bulldogs help develop in utero MSC patch to treat spina bifida

English Bulldogs help develop in utero MSC patch to treat spina bifida

A team at UC Davis Medical Centre in Sacramento, California, have used mesenchymal stem cell (MSC) patches to treat spina bifida. Although still experimental, with outcomes yet unknown in the few babies that received the treatment, earlier work on English bulldogs and other models of spinal cord injury suggests this approach may be useful to treat spina bifida.

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Cell cannibalism

Cell cannibalism

Cells constantly exchange material with their surroundings. At one end of the ingestion scale, nutrients are adsorbed by mechanisms such as endocytosis. At the other end, entire cells can be swallowed by another cell. Terms such as entosis, emperitosis, phagoptosis and, simply, cannibalism, describe these fascinating phenomena.

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Exosomes x cytokines: A potent combination

Exosomes x cytokines: A potent combination

Exosomes possess an exceptional ability to target specific cells and deliver a highly heterogenous cargo reflective of the type and physiological/pathological conditions of the cell that produced them. Both exosomes and interleukins are critical cellular messengers for the modulation of cellular functions. In recent years, the important role that interleukins within circulating exosomes play in disease and normal tissue homeostasis has become clear.

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Pancreatic cancer: turning the tide

Pancreatic cancer: turning the tide

Great strides have been made in recent years in treating some cancers, such as melanoma. But despite huge efforts, little progress has been made in improving the odds for pancreatic ductal adenocarcinoma (PDAC). 95% of individuals receiving a diagnosis of PDAC survive less than 18 months. It is the worst prognosis of any cancer, making it set to be the second biggest cause of cancer mortality by 2030. Why is PDAC so difficult to treat and what strategies are being developed?

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