Cutaneous aging is an unavoidable biological process that develops over time as a result of cumulative cellular and molecular changes caused by exposure to intrinsic (chronological aging) and extrinsic (photo-aging) factors on the skin. Skin aging is characterized by a decline in the body's ability to maintain senescence, dermal cell apoptosis, and homeostasis. The secretome is composed of an entire set of dynamically overlapping paracrine soluble factors growth factors, cytokines, extracellular matrix proteins, and antimicrobial peptides known to be involved in tissue rejuvenation, regeneration, homeostasis, and immunomodulation. Compared to available treatments stem cell secretion “Secretome “is among the most promising anti-aging therapies. The involvement of growth factors and cytokines, which stem cells secrete, has risen as an new insight in skin remodeling and regeneration. Fibroblast growth factor (FGF) was associated with such function. ELISA was carried out in this investigation to evaluate the presence of FGF in the secretome secreted by stem cells extracted from two umbilical cords, as well as the secretions of stem cells from various sources such as fruits, plants, and seeds. FGF was found in all sample cultures, with a maximum concentration of 1585 pg/ml found in umbilical cord tissues. The presence of FGF, therefore aimed largely at reversing aging by modifying and regulating important signaling pathways.

Regenerative medicine is broadly defined as the repair or replacement of damaged cells, tissues and organs. It is a multidisciplinary effort in which technologies derive from the fields of cell, developmental and molecular biology; chemical and material sciences (i.e. nanotechnology); engineering; surgery; transplantation; immunology; molecular genetics; physiology; and pharmacology. As regenerative medicine technologies continue to evolve and expand across the boundaries of numerous scientific disciplines, they remain at the forefront of the translational research frontier with the potential to radically alter the treatment of a wide variety of disease and dysfunction. This book will draw attention to the critical role that pharmacological sciences will undeniably play in the advancement of these treatments. This book is invaluable for advanced students, postdoctoral fellows, researchers new to the field of regenerative medicine/tissue engineering, and experienced investigators looking for new research avenues. The first state-of-the-art book in this rapidly evolving field of research.

Our skin changes as we age. It becomes thinner and loses fat, making it less plump and smooth. Clinically, aged skin is characterized by wrinkles, sagging, age spots and dryness. Emphasizing laboratory and clinical research, this book comprehensively describes the molecular mechanisms of human skin-aging and age-related skin diseases. This includes

This book summarizes the NATO Advanced Research Workshop (ARW) on “Nanoengineered Systems for Regenerative Medicine” that was organized under the auspices of the NATO Security through Science Program. I would like to thank NATO for supporting this workshop via a grant to the co-directors. The objective of ARW was to explore the various facets of regenerative me- cine and to highlight role of the “the nano-length scale” and “nano-scale systems” in defining and controlling cell and tissue environments. The development of novel tissue regenerative strategies require the integration of new insights emerging from studies of cell-matrix interactions, cellular signalling processes, developmental and systems biology, into biomaterials design, via a systems approach. The chapters in the book, written by the leading experts in their respective disciplines, cover a wide spectrum of topics ranging from stem cell biology, developmental biology, ce- matrix interactions, and matrix biology to surface science, materials processing and drug delivery. We hope the contents of the book will provoke the readership into developing regenerative medicine paradigms that combine these facets into cli- cally translatable solutions. This NATO meeting would not have been successful without the timely help of Dr. Ulrike Shastri, Sanjeet Rangarajan and Ms. Sabine Benner, who assisted in the organization and implementation of various elements of this meeting. Thanks are also due Dr. Fausto Pedrazzini and Ms. Alison Trapp at NATO HQ (Brussels, Belgium). The commitment and persistence of Ms.

This book describes the nature of aging, age-related disorders, and the molecular principles of emerging strategies for anti-aging interventions, while also discussing the discovery of targets for geroprotective drugs. Although significant medical advances in the treatment and eradication of life-threatening conditions such as cardiovascular and infectious disease have been made over the past five decades, the prevalence of age-related disorders still remains high in older populations. Intervening into aging is the next frontier in contemporary medicine, and will be of increasing importance over time, as other sources of poor health are combated more and more successfully. Given the universal interest in anti-aging strategies, the book will appeal to a very broad audience. It addresses a diverse range of anti-aging interventions – including stem cells, autophagy, senolytics, anti-inflammatory methods, and telomerase induction – that will be of interest to scientists and researchers from various disciplines in the life sciences.

Conventional materials technology has yielded clear improvements in regenerative medicine. Ideally, however, a replacement material should mimic the living tissue mechanically, chemically, biologically and functionally. The use of tissue-engineered products based on novel biodegradable polymeric systems will lead to dramatic improvements in health