Lactose-N-hexasaccharide—the gold standard for oligosaccharides, a new generation of therapeutic strategies CAS:64003-51-6

Lacto-N-hexaose (LNH) is a key and structurally complex core member of the Human Milk Oligosaccharides (HMOs) family, known as "the original golden nutritional signaling molecule of life." It is not only a naturally occurring bioactive ingredient in breast milk, but also a valuable core raw material and research tool in the fields of modern nutritional science, infant health, and biomedicine.

Chemical Information

Chemical name: Lactose-N-hexose

Common name: Lacto-N-hexaose, LNnH or LNH

Chemical formula: C₄₀H₆₈N₂O₃₁

Molecular weight: 1072.96 g/mol

CAS number: 64003-51-6

Structural characteristics and biological significance

Lactose-N-hexose belongs to the core structure of type I HMO, and its molecules are carefully assembled from galactose (Gal), N-acetylglucosamine (GlcNAc), glucose (Glc) and fucose (Fuc, in some isomers) through specific β-glycosidic bonds. Its unique features are:

Precise spatial architecture: LNH has a highly branched hexasaccharide structure. This specific spatial arrangement is the structural basis for its highly specific interactions with a variety of host lectins (such as selectins), cell surface receptors, and intestinal microbial enzyme systems.

Mimic cell surface glycoconjugates: Its terminal structure (such as Lewis epitope) can simulate sugar chains on the surface of human cells, thereby playing a key role as "molecular bait" or "signal modulator" in cell recognition, signal transduction and immune regulation.

Excellent stability and diversity: As an oligosaccharide, its chemical properties are stable, and there are a variety of fucosylated or sialylated derivatives based on its core structure in nature, forming a family of bioactive molecules with rich functions.

Main applications and advantages

1. Core functional raw materials for infant nutrition and health

Promote the proliferation of probiotics and create a healthy intestinal microecology: LNH is a typical high-end prebiotic that can selectively promote the growth of beneficial bacteria such as Bifidobacteria, inhibit pathogen colonization, and establish a crucial first line of immune defense for infants and young children.

Supports immune system development: By interacting directly with immune cells, LNH can gently regulate immune responses, help balance Th1/Th2 responses, reduce the risk of allergic and inflammatory diseases, and support the development of immune tolerance.

Promote cognitive development: Recent studies suggest that HMOs such as LNH may have a positive impact on infant nervous system development through indirect or direct mechanisms.

The "golden ingredient" of high-end infant formula: adding LNH with a clear structure and high purity to formula is a key step to make it infinitely close to the "functional activity" of breast milk, and represents the technological high point of the next generation of infant nutrition.

2. Innovation engine for adult health and functional foods

Intestinal health management: For adult intestinal flora disorders, irritable bowel syndrome and other problems, LNH can be used as an efficient and precise prebiotic ingredient for the development of high-end functional foods and special medical foods.

Immunomodulator: Its potential in regulating immune balance and alleviating low-grade chronic inflammation in adults provides new ideas for the development of health products for people with low immunity or autoimmune tendencies.

Metabolic health: Preliminary research suggests that HMOs may have beneficial effects on metabolic health by improving intestinal barrier function and microbiota metabolism.

3. Cutting-edge tools and candidate molecules for biomedical research and development

New strategies for anti-infective treatment: LNH can be an ideal candidate as an adhesion inhibitor of pathogens (such as bacteria and viruses). By competitively binding to pathogen adhesins and blocking their binding to host cells, it provides a natural and safe template for the development of new anti-infective drugs, especially for intestinal and respiratory infections.

Inflammation and autoimmune disease intervention: Its immunomodulatory properties make it promising in the development of drugs for chronic inflammatory diseases such as inflammatory bowel disease (IBD) and arthritis.

Drug delivery and targeting system: Utilizing the property of LNH to be recognized by specific receptors, it can be used to construct drug delivery carriers to achieve intestinal targeting or cell-selective delivery of drugs.

Cancer Research and Treatment: Certain cell surface sugar chains (such as sialyl-Lewis x) play a key role in cancer metastasis. LNH and its derivatives can be used as important probes to study cancer cell-endothelial cell interactions and even as potential inhibitors to block tumor metastasis.

4. Precious standards for basic research and diagnostic development

Glycobiology and microbiome research: High-purity LNH is an indispensable core tool for studying sugar-protein interactions and sugar-microbe interaction mechanisms, helping to decipher the complex sugar codes in life processes.

Development of diagnostic markers and reagents: Changes in related sugar structures in disease states can serve as potential biomarkers. LNH can be used as a key raw material and reference standard for synthesizing related sugar arrays or developing detection reagents.

Conclusion

Lactose-N-hexose is much more than just a carbohydrate. It is an early programming language given by nature and a smart bridge connecting nutrition, microorganisms and immunity. From laying the foundation for lifelong health to responding to complex disease challenges, the HMO science represented by LNH is opening a new era from "nutritional support" to "active health management." Embrace this cutting-edge molecule and jointly empower future-oriented health solutions.

The above information is provided by the editor of KASONS and is for scientific research only.