Chronological aging shows the natural life cycle of the cells as opposed to cells that have been unnaturally replicated multiple times or otherwise manipulated in a lab.

In order to preserve the cells in their natural state, Penn researchers developed a system to collect and store them without manipulating them, making them available for this study. They found stem cells collected directly from human fat -- called adipose-derived stem cells (ASCs) -- can make more proteins than originally thought. This gives them the ability to replicate and maintain their stability, a finding that held true in cells collected from patients of all ages.

Our study shows these cells are very robust, even when they are collected from older patients, said Ivona Percec, MD, director of Basic Science Research in the Center for Human Appearance and the studys lead author. It also shows these cells can be potentially used safely in the future, because they require minimal manipulation and maintenance.

Stem cells are currently used in a variety of anti-aging treatments and are commonly collected from a variety of tissues. But Percecs team specifically found ASCs to be more stable than other cells, a finding that can potentially open the door to new therapies for the prevention and treatment of aging-related diseases.

Unlike other adult human stem cells, the rate at which these ASCs multiply stays consistent with age, Percec said.

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Stem Cell therapy is future of anti-ageing - Bangalore Mirror