PapersFlow Research Brief
Studies on Chitinases and Chitosanases
Research Guide
What is Studies on Chitinases and Chitosanases?
Studies on Chitinases and Chitosanases is a research cluster examining the structure, function, regulation, and biological significance of chitin metabolism in insects and mammals, including chitinases, immune responses, inflammation, asthma, tissue remodeling, and chitin-related molecules as disease biomarkers.
This field encompasses 20,889 published works on chitinases and chitosanases. Research addresses chitin metabolism, enzyme functions, and their roles in immune responses and inflammation. Key studies classify glycosyl hydrolases relevant to chitinase mechanisms and review chitin and chitosan preparation from marine sources.
Topic Hierarchy
Research Sub-Topics
Mammalian Chitinase Structure
This sub-topic elucidates crystal structures and active sites of human chitinases like AMCase and chitotriosidase using X-ray crystallography and modeling. Researchers study substrate binding and catalytic mechanisms.
Chitinases in Asthma Pathogenesis
Studies link chitinase activity, especially YKL-40 and AMCase, to airway inflammation and remodeling in asthma models. Clinical research correlates enzyme levels with disease severity and exacerbations.
Chitin Immune Response Regulation
This area investigates chitin recognition by receptors like Dectin-1 and its induction of IL-17, Th2 responses in macrophages and dendritic cells. Includes fungal and helminth infection models.
Chitinases as Disease Biomarkers
Researchers validate chitinases and chilectins as serum markers for Gaucher disease, sarcoidosis, and cancer progression. Longitudinal studies assess prognostic value.
Chitin Metabolism Regulation
Focusing on transcriptional and epigenetic control of chitinase genes in inflammation and development. Studies explore feedback loops with chitin fragments in tissue repair.
Why It Matters
Chitinases and chitosanases contribute to chitin metabolism, which influences immune responses, inflammation, and asthma in mammals. Younes and Rinaudo (2015) in "Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications" detail methods for recovering chitin from marine organisms, enabling applications in biomedical materials due to their biocompatibility. Kean and Thanou (2009) in "Biodegradation, biodistribution and toxicity of chitosan" assess chitosan's safety for drug delivery, showing low toxicity and controlled degradation, which supports its use in advanced drug delivery systems with over 1,734 citations indicating practical impact.
Reading Guide
Where to Start
"Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications" by Younes and Rinaudo (2015) provides an accessible entry on chitin/chitosan basics, preparation methods, and properties before advancing to enzyme studies.
Key Papers Explained
Younes and Rinaudo (2015) "Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications" establishes substrate contexts for enzymes. Davies and Henrissat (1995) "Structures and mechanisms of glycosyl hydrolases" and Henrissat and Davies (1997) "Structural and sequence-based classification of glycoside hydrolases" build foundational knowledge on hydrolase structures and classifications relevant to chitinases/chitosanases. Kean and Thanou (2009) "Biodegradation, biodistribution and toxicity of chitosan" extends to practical enzyme-mediated degradation outcomes.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current research emphasizes chitinases in immune responses, inflammation, and asthma biomarkers, though no recent preprints or news from the last 12 months are available. Frontiers involve linking chitin metabolism to disease diagnostics within the 20,889 works corpus.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | LC3, a mammalian homologue of yeast Apg8p, is localized in aut... | 2000 | The EMBO Journal | 6.5K | ✓ |
| 2 | The Role of Atg Proteins in Autophagosome Formation | 2011 | Annual Review of Cell ... | 2.9K | ✕ |
| 3 | Autophagy in Health and Disease: A Double-Edged Sword | 2004 | Science | 2.5K | ✓ |
| 4 | Chitin and Chitosan Preparation from Marine Sources. Structure... | 2015 | Marine Drugs | 2.3K | ✓ |
| 5 | HDAC6 is a microtubule-associated deacetylase | 2002 | Nature | 2.3K | ✕ |
| 6 | Structures and mechanisms of glycosyl hydrolases | 1995 | Structure | 2.0K | ✕ |
| 7 | FLAVIVIRUS GENOME ORGANIZATION, EXPRESSION, AND REPLICATION | 1990 | Annual Review of Micro... | 2.0K | ✕ |
| 8 | Biodegradation, biodistribution and toxicity of chitosan | 2009 | Advanced Drug Delivery... | 1.7K | ✕ |
| 9 | Selective autophagy mediated by autophagic adapter proteins | 2011 | Autophagy | 1.7K | ✓ |
| 10 | Structural and sequence-based classification of glycoside hydr... | 1997 | Current Opinion in Str... | 1.6K | ✕ |
Frequently Asked Questions
What are chitinases and chitosanases?
Chitinases are enzymes that hydrolyze chitin, a polysaccharide in insect exoskeletons and fungal cell walls, while chitosanases degrade chitosan, a deacetylated derivative. These enzymes play roles in chitin metabolism, immune responses, and tissue remodeling in insects and mammals. Studies classify them within glycosyl hydrolase families as detailed in Henrissat and Davies (1997) "Structural and sequence-based classification of glycoside hydrolases".
How is chitin prepared from marine sources?
Chitin recovery from marine organisms involves enzymatic or chemical deproteinization followed by demineralization. Younes and Rinaudo (2015) in "Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications" compare these methods, noting optimal conditions for chitosan preparation afterward. This process yields materials with defined structures for biomedical uses.
What is the biological role of chitin metabolism?
Chitin metabolism regulates immune responses, inflammation, asthma, and tissue remodeling in mammals and insects. Research identifies chitin-related molecules as biomarkers for diseases. Davies and Henrissat (1995) in "Structures and mechanisms of glycosyl hydrolases" elucidate enzyme mechanisms underlying these functions.
What are key applications of chitosan?
Chitosan finds use in drug delivery due to its biodegradation and low toxicity profiles. Kean and Thanou (2009) in "Biodegradation, biodistribution and toxicity of chitosan" document its biodistribution and safety in vivo. These properties support pharmaceutical formulations.
How are glycosyl hydrolases like chitinases classified?
Glycosyl hydrolases, including chitinases, are classified by structure and sequence into families. Henrissat and Davies (1997) in "Structural and sequence-based classification of glycoside hydrolases" provide this system, linking it to catalytic mechanisms. Davies and Henrissat (1995) in "Structures and mechanisms of glycosyl hydrolases" describe their three-dimensional structures.
What is the scale of research on this topic?
The field includes 20,889 works on chitinases and chitosanases. Growth data over five years is not available. Topics span chitin metabolism, enzymes, inflammation, asthma, and biomarkers.
Open Research Questions
- ? How do chitinases contribute to asthma pathogenesis through immune regulation?
- ? What regulatory mechanisms control chitinase expression in mammalian inflammation?
- ? Can chitin-derived biomarkers reliably diagnose specific diseases?
- ? How do structural variations in chitinases affect their substrate specificity?
- ? What roles do chitosanases play in microbial degradation of chitosan in gut microbiota?
Recent Trends
The field maintains 20,889 works with no specified five-year growth rate.
Highly cited papers like Younes and Rinaudo "Chitin and Chitosan Preparation from Marine Sources.
2015Structure, Properties and Applications" (2,338 citations) and Kean and Thanou "Biodegradation, biodistribution and toxicity of chitosan" (1,734 citations) reflect sustained interest in preparation and biodegradation.
2009No recent preprints or news coverage from the last 12 months or six months indicate stable rather than rapidly expanding activity.
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