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Here Comes The New Acne Vaccine

Future studies will address these factors and focus on engineering a non-toxic chemical or targeted vaccine formulation for its human application, the researchers said

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Acne
New vaccine to offer treatment for acne. Pixabay
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Do you often suffer from acne? Take heart, a potential vaccine that targets the bacterial toxins may soon be on the anvil, say researchers.

Instead of invading pathogens, the new vaccine would be the first to target bacteria already in human skin.

The researchers demonstrated that antibodies to a toxin secreted from bacteria in acne vulgaris can reduce inflammation in human acne lesions.

“Once validated by a large-scale clinical trial, the potential impact of our findings is huge for the hundreds of millions of individuals suffering from acne vulgaris,” explained lead investigator Chun-Ming Huang, from the University of California-San Diego, US.

An acne vaccination could circumvent potential adverse effects of topical or systemic retinoids and antibiotics, the current treatment options.

acne
Instead of invading pathogens, the new vaccine would be the first to target bacteria already in human skin. Pixabay

They found that Christie-Atkins-Munch-Peterson (CAMP) factor — a toxin secreted from the Propionibacterium acnes (P. acnes) bacteria, can induce inflammatory responses.

In the study, published in the Journal of Investigative Dermatology, the team explored in mice and ex vivo in human skin cells whether they could inhibit inflammation by employing antibodies to neutralise this virulence factor.

Their findings show that the application of monoclonal antibodies to CAMP 2 factor did indeed decrease the inflammatory response.

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“While addressing an unmet medical need and providing an appealing approach, acne immunotherapies that target P. acnes-derived factors have to be cautiously designed to avoid unwanted disturbance of the microbiome that guarantees skin homeostasis,” said Emmanuel Contassot, from the University of Zurich in Switzerland.

Future studies will address these factors and focus on engineering a non-toxic chemical or targeted vaccine formulation for its human application, the researchers said. (IANS)

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Novel Vaccine Approach Proves Powerful Against Zika Virus

However, the next big question is "will this be protective in humans?", the researchers said

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Experimental vaccine shows potential against Zika virus
Experimental vaccine shows potential against Zika virus. (IANS)

An experimental single dose vaccine against the Zika virus has proven to be powerful in mice, new research has found.

The vaccine employs an uncommon two-pronged approach to fighting the virus, which is spread by mosquitoes and is most serious for pregnant women and their foetuses.

The vaccine, carrying genes for two or three Zika proteins, proved effective in triggering an immune response that prevented later infection by the virus.

“The vaccine was potent, safe and highly effective, at least in the short term. There’s a long way to go, but we think this is a promising candidate for a human vaccine,” said lead author Jianrong Li, professor at The Ohio State University in the US.

The experimental vaccine holds particular promise because it appears to afford an adequate immune response with one dose. In hard-to-reach and resource-poor areas, that becomes especially valuable, added Shan-Lu Liu, co-author at the varsity.

zika virus
Representational image. (IANS)

In the study, appearing in the journal Nature Communications, the team targeted a protective immune response by expressing two or three Zika proteins and looked to vesicular stomatitis virus, or VSV — a foot-and-mouth disease in cattle.

In the experimental vaccine, VSV acts as a vehicle to deliver the genes for two or three key proteins from the Zika virus, carrying them into the mouse and expressing them inside some of the cells in the mouse so that the immune system could respond and build up a defence against Zika.

In addition, experiments in mice with severely compromised immune systems showed that vaccination helped their weak immune systems to fight off the virus swiftly and efficiently.

Also Read: Zika Virus May Cause Miscarriages, Stillbirths Without Any Symptoms

The early success with this vaccine has encouraged this team to use the same approach to fight other related viruses, including Dengue fever, the researchers said.

However, the next big question is “will this be protective in humans?”, the researchers said. (IANS)

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