New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

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Chonluten

Also known as: Glu-Asp-Leu, Khavinson bronchial peptide, Lung tripeptide bioregulator

Chonluten is a tripeptide bioregulator (Glu-Asp-Leu) developed by Professor Vladimir Khavinson, tissue-specific to the bronchi and lungs. While related to Bronchogen (a tetrapeptide), Chonluten is a shorter tripeptide sequence. It supports bronchial mucosal cell function, promotes respiratory epithelial regeneration, and is used in protocols for COPD, chronic bronchitis, and pulmonary anti-aging.

Half-Life

Short (minutes for the peptide); sustained gene-regulatory effects

Route

SubQ, Oral

Category

Anti-Aging & Longevity

Studies

39 references

Key Benefits

  • Supports bronchial mucosal regeneration and repair
  • May improve mucociliary clearance in chronic respiratory conditions
  • Anti-inflammatory effects on bronchial epithelium
  • Pulmonary anti-aging and tissue preservation
  • Supports lung function in COPD and chronic bronchitis
  • Well tolerated in combination with other Khavinson bioregulators
  • Short tripeptide with efficient cellular penetration

Mechanism of Action

Chonluten's tripeptide sequence Glu-Asp-Leu interacts with gene regulatory regions in bronchial and alveolar cells, normalizing protein synthesis and cellular function. It promotes regeneration of respiratory mucosa, reduces inflammatory gene expression in bronchial tissue, and supports the ciliary function of bronchial epithelium. Its short sequence allows efficient cellular penetration and rapid gene-regulatory activity.

Dosing Protocols

Standard Khavinson Protocol

Dose
10 mg per day
Frequency
Daily for 10–30 days
Timing
Subcutaneous injection or oral (enteric-coated)
Cycle
10–30 day course, repeated 2–4x per year

Often used alongside Bronchogen for comprehensive lung support. Research use only.

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Side Effects

  • Generally well tolerated
  • Mild injection site reactions possible
  • No significant adverse pulmonary events reported

Contraindications

Not FDA approved. Not a substitute for bronchodilators, corticosteroids, or standard COPD therapies. Consult physician for active pulmonary disease.

Storage

Store at 2–8°C. Protect from moisture and light.

  1. 1.
    Peptides Regulating Proliferative Activity and Inflammatory Pathways in the Monocyte/Macrophage THP-1 Cell Line

    Avolio F, Martinotti S, Khavinson VK, Esposito JE, Giambuzzi G, Marino A et al. · International journal of molecular sciences · 2022PubMed Verified

  2. 2.
  3. 3.
    Physiological characteristics and cold tolerance of overwintering eggs in Gomphocerus sibiricus L. (Orthoptera: Acrididae)

    Song Y, Huang WW, Zhou Y, Li ZW, Ji R, Ye XF · Archives of insect biochemistry and physiology · 2021PubMed Verified

  4. 4.
    Epitope Analysis of an Anti-Whale Podoplanin Monoclonal Antibody, PMab-237, Using Flow Cytometry

    Sayama Y, Sano M, Kaneko MK, Kato Y · Monoclonal antibodies in immunodiagnosis and immunotherapy · 2020PubMed Verified

  5. 5.
    Chemical composition and functional properties of roe concentrates from skipjack tuna (Katsuwonus pelamis) by cook-dried process

    Yoon IS, Lee GW, Kang SI, Park SY, Lee JS, Kim JS et al. · Food science & nutrition · 2018PubMed Verified

  6. 6.
    Antithrombotic Activity of Brewers' Spent Grain Peptides and their Effects on Blood Coagulation Pathways

    Cian RE, Garzón AG, Martínez-Augustin O, Botto CC, Drago SR · Plant foods for human nutrition (Dordrecht, Netherlands) · 2018PubMed Verified

  7. 7.
    A Novel High-Molecular-Mass Bacteriocin Produced by Enterococcus faecium: Biochemical Features and Mode of Action

    Vasilchenko AS, Vasilchenko AV, Valyshev AV, Rogozhin EA · Probiotics and antimicrobial proteins · 2018PubMed Verified

  8. 8.
    Short Exogenous Peptides Regulate Expression of CLE, KNOX1, and GRF Family Genes in Nicotiana tabacum

    Fedoreyeva LI, Dilovarova TA, Ashapkin VV, Martirosyan YT, Khavinson VK, Kharchenko PN et al. · Biochemistry. Biokhimiia · 2017PubMed Verified

  9. 9.
    Interaction of short peptides with FITC-labeled wheat histones and their complexes with deoxyribooligonucleotides

    Fedoreyeva LI, Smirnova TA, Kolomijtseva GY, Khavinson VKh, Vanyushin BF · Biochemistry. Biokhimiia · 2013PubMed Verified

  10. 10.
    Peptides tissue-specifically stimulate cell differentiation during their aging

    Khavinson VKh, Linkova NS, Polyakova VO, Kheifets OV, Tarnovskaya SI, Kvetnoy IM · Bulletin of experimental biology and medicine · 2012PubMed Verified

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    Computational titration analysis of a multiprotic HIV-1 protease-ligand complex

    Spyrakis F, Fornabaio M, Cozzini P, Mozzarelli A, Abraham DJ, Kellogg GE · Journal of the American Chemical Society · 2004PubMed Verified

  14. 14.
    HIV-1 protease inhibitors: enthalpic versus entropic optimization of the binding affinity

    Velazquez-Campoy A, Todd MJ, Freire E · Biochemistry · 2000PubMed Verified

  15. 15.
    Proteolytic processing of HIV-1 protease precursor, kinetics and mechanism

    Louis JM, Wondrak EM, Kimmel AR, Wingfield PT, Nashed NT · The Journal of biological chemistry · 1999PubMed Verified

  16. 16.
    Hydrophilic peptides derived from the transframe region of Gag-Pol inhibit the HIV-1 protease

    Louis JM, Dyda F, Nashed NT, Kimmel AR, Davies DR · Biochemistry · 1998PubMed Verified

  17. 17.
    Purification and characterization of the 2-ketoaldonate reductase from Brevibacterium ketosoreductum ATCC21914

    Yum DY, Bae SS, Pan JG · Bioscience, biotechnology, and biochemistry · 1998PubMed Verified

  18. 18.
    Functions of characteristic Cys-Gly-His-Cys (CGHC) and Gln-Glu-Asp-Leu (QEDL) motifs of microsomal ER-60 protease

    Urade R, Oda T, Ito H, Moriyama T, Utsumi S, Kito M · Journal of biochemistry · 1997PubMed Verified

  19. 19.
  20. 20.
    Identification and purification of a new staphylococcal enterotoxin, H

    Su YC, Wong AC · Applied and environmental microbiology · 1995PubMed Verified

  21. 21.
    The corrected primary structure of chicken (avian) pancreatic polypeptide

    Marks NJ, Shaw C, Halton DW, Thim L · Regulatory peptides · 1994PubMed Verified

  22. 22.
    Isolation and structural characterisation of herring gull (Larus argentatus) pancreatic polypeptide

    Barton CL, Shaw C, Halton DW, Thim L · General and comparative endocrinology · 1994PubMed Verified

  23. 23.
    Recombinant anti-erbB2 immunotoxins containing Pseudomonas exotoxin

    Batra JK, Kasprzyk PG, Bird RE, Pastan I, King CR · Proceedings of the National Academy of Sciences of the United States of America · 1992PubMed Verified

  24. 24.
  25. 25.
    Increased cytotoxic activity of Pseudomonas exotoxin and two chimeric toxins ending in KDEL

    Seetharam S, Chaudhary VK, FitzGerald D, Pastan I · The Journal of biological chemistry · 1991PubMed Verified

  26. 26.
    Pseudomonas exotoxin contains a specific sequence at the carboxyl terminus that is required for cytotoxicity

    Chaudhary VK, Jinno Y, FitzGerald D, Pastan I · Proceedings of the National Academy of Sciences of the United States of America · 1990PubMed Verified

  27. 27.
  28. 28.
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  30. 30.
    Expression of normal and mutant human pre-pro-insulins in Xenopus oocytes

    Shennan KI, Docherty K · Biochimie · 1988PubMed Verified

  31. 31.
  32. 32.
    Isolation and characterization of neuropeptide Y from porcine intestine

    Tatemoto K, Siimesmaa S, Jörnvall H, Allen JM, Polak JM, Bloom SR et al. · FEBS letters · 1985PubMed Verified

  33. 33.
  34. 34.
    Amino acid sequence of Synechocystis 6714 ferredoxin: a unique structural feature of unicellular blue-green algal ferredoxin

    Hase T, Inoue K, Matsubara H, Williams MM, Rogers LJ · Journal of biochemistry · 1982PubMed Verified

  35. 35.
    Neuropeptide Y: complete amino acid sequence of the brain peptide

    Tatemoto K · Proceedings of the National Academy of Sciences of the United States of America · 1982PubMed Verified

  36. 36.
  37. 37.
    Isolation, characterization, and crystallization of ribulosebisphosphate carboxylase from autotrophically grown Rhodospirillum rubrum

    Schloss JV, Phares EF, Long MV, Norton IL, Stringer CD, Hartman FC · Journal of bacteriology · 1979PubMed Verified

  38. 38.
    Studies on cytochrome c. XIV. Synthesis of the protected heptadecapeptide (sequence 88-104) of horse heart cytochrome c

    Borin G, Filippi B, Cavaggion F, Marchiori F · International journal of peptide and protein research · 1977PubMed Verified

  39. 39.
    Isolation and characterization of a new pancreatic polypeptide hormone

    Kimmel JR, Hayden LJ, Pollock HG · The Journal of biological chemistry · 1975PubMed Verified

Medical disclaimer: This information is for educational purposes only and does not constitute medical advice. Many compounds listed are research chemicals not approved for human use. Always consult a qualified healthcare professional before starting any protocol.

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