Tissue and Organ Regeneration in Adults

Citation

Yannas, I. V. (2015). Tissue and Organ Regeneration in Adults: Extension of the Paradigm to Several Organs (2nd ed.). Springer.

Chapter Summary

The second edition is a monograph of ten chapters, plus front and back matter, by the materials scientist and biomedical engineer Ioannis Yannas. The publisher describes it as a textbook on the basic principles of induced organ regeneration in skin and peripheral nerves, which then extends the original paradigm to other organs. A set of "trans-organ rules" is established and its use is illustrated from the work of independent investigators who regenerated organs such as the lung, the bladder and the Achilles tendon using collagen-based scaffolds similar to the original one. The publisher presents the approach as filling a clinical need that organ transplantation does not meet.

Chapter 1: The Irreversibility of Organ Injury

Opens with the problem the whole book addresses: the irreversibility of injury to organs in adults, set against the aim of induced regeneration.

Chapter 2: Nonregenerative Tissues

Looks at tissues that do not regenerate, setting up the contrast with the regenerative outcomes studied later.

Chapters 3–4: Experimental Methods I and II

Chapter 3, "Experimental Methods I: The Anatomically Well-Defined Wound", and Chapter 4, "Experimental Methods II. The Defect Closure Rule", describe how injuries are defined and observed. The second introduces a rule about how defects close, which the later chapters use.

Chapters 5–6: Regeneration of Skin; Regeneration of a Peripheral Nerve

The two model systems of the book. Chapter 5, "Regeneration of Skin", and Chapter 6, "Regeneration of a Peripheral Nerve", are the longest chapters in the book and present the paradigm in the two organs where it was first developed.

Chapter 7: Minimum Reactants Required for Synthesis of Skin and Peripheral Nerves; Extension to Tissues of Other Organs

Asks what the minimum reactants for the synthesis of skin and peripheral nerve are and carries the answer toward the tissues of other organs, the extension that the publisher says this edition adds.

Chapter 8: An Antagonistic Relation Between Wound Contraction and Regeneration

Takes up the relation between wound contraction and regeneration as competing processes.

Chapter 9: Molecular Biology of Contraction Blockade by Active Scaffolds

Moves to the molecular level of how an active scaffold blocks contraction.

Chapter 10: The Scaffold Regeneration Paradigm and Its Consequences

Draws the argument together and sets out its consequences. The Crossref record also lists a short erratum after Chapter 10.

Key Concepts

Chapters 1–4

• Irreversibility of organ injury: the problem that induced regeneration is meant to overcome.
• Anatomically well-defined wound: the experimental setup used to study repair.
• Defect closure rule: a rule governing how defects close.

Chapters 5–7

• Induced regeneration: using a scaffold to induce organ regeneration in skin and peripheral nerve.
• Collagen-based scaffolds: the type of scaffold used in the work the book discusses.
• Trans-organ rules: guidelines, described in this edition for the first time according to the publisher, for extending the treatment to other organs.

Chapters 8–10

• Wound contraction and regeneration: processes that antagonise each other.
• Contraction blockade: the molecular mechanism by which an active scaffold prevents contraction.
• Scaffold regeneration paradigm: the unifying framework and its consequences.

Critical Analysis

Strengths

• A single, sustained argument. The chapters build from the problem of irreversible injury through methods and two model organs to a unifying paradigm, so the book reads as one case rather than a survey.
• A defined extension from skin and nerve to other organs. The second edition adds evidence from other investigators on organs such as the lung, bladder and Achilles tendon, which tests the paradigm beyond its origins.
• Titles that announce the argument. Chapter titles such as "An Antagonistic Relation Between Wound Contraction and Regeneration" and "Molecular Biology of Contraction Blockade by Active Scaffolds" state the claims, so a reader can follow the logic from the contents alone.
• Compact. About 270 pages of chapters in ten units make the argument manageable for a graduate seminar.

Limitations

• Narrow in scope. The book is about one approach to regeneration, scaffold-induced regeneration, and does not survey stem-cell or other strategies, so it is not a general tissue engineering text.
• Specialised level. The molecular and materials chapters suit graduate readers with a background in biomaterials or cell biology.
• A single-author viewpoint. Because the paradigm is presented by a single author, readers benefit from pairing it with a broader text to see how other approaches are positioned.

Where It Fits in the Course

Within the tissue engineering list, this book is the focused, advanced monograph. Birla's Introduction to Tissue Engineering presents tissue engineering as an engineering design problem and covers cells, biomaterials and applications. Principles of Tissue Engineering and van Blitterswijk's Tissue Engineering are broad textbooks, the second structured for readers new to the field. Slack's Stem Cells: A Very Short Introduction is a short account of stem cells and regenerative medicine.

Read one of the broad texts first to place scaffolds, cells and regeneration in context, then use Yannas for a close treatment of how a scaffold can induce regeneration in vivo and why wounds contract instead.

How to Use This Book

The book is for graduate students and researchers in biomedical engineering, materials science and regenerative medicine. Knowledge of basic cell biology and biomaterials is assumed.

A practical plan:

• Core: Chapters 1 and 2 for the problem, Chapters 5 and 6 for the two model organs.
• Methods: Chapters 3 and 4 before the organ chapters if the experimental definitions are unfamiliar.
• Mechanism and synthesis: Chapters 7 to 10 for the minimal requirements, the contraction–regeneration relation, the molecular basis and the overall paradigm.
• Practice: read each chapter alongside the primary papers it cites, since the argument rests on specific experiments.