Evidence map›Paper›PMID 22007676›Full record

ArticleJournal of medicinal chemistry2011

Structure-activity relationships in toll-like receptor 2-agonists leading to simplified monoacyl lipopeptides.

Geetanjali Agnihotri, Breanna M Crall, Tyler C Lewis, Timothy P Day, Rajalakshmi Balakrishna, Hemamali J Warshakoon, Subbalakshmi S Malladi, Sunil A David

Abstract read
In one paragraph

Article in Journal of medicinal chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed.

  1. Article
  2. Article
  3. Fatty acids ofMicrobiology spectrum · 2024
    Article
  4. Review
  5. Stereoisomeric PamRSC medicinal chemistry · 2022
    Article
  6. Lipopeptides for Vaccine Development.Bioconjugate chemistry · 2021
    Review
  7. Article
  8. Article
  9. Development ofMolecules (Basel, Switzerland) · 2019
    Article
  10. Article
  11. Review
  12. Biomaterials for vaccine-based cancer immunotherapy.Journal of controlled release : official journal of the Controlled Release Society · 2018
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Peptide Lipidation - A Synthetic Strategy to Afford Peptide Based Therapeutics.Advances in experimental medicine and biology · 2017
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Geetanjali AgnihotriDepartment of Medicinal Chemistry, University of Kansas, Multidisciplinary Research Building, Lawrence, KS 66047, United States.
Breanna M Crall
Tyler C Lewis
Timothy P Day
Rajalakshmi Balakrishna
Hemamali J Warshakoon
Subbalakshmi S Malladi
Sunil A David

Funding

NIAID NIH HHS HHSN272200900033C
6 · The paper itself

Abstract

Toll-like receptor 2-agonistic lipopeptides typified by S-[2,3-bis(palmitoyloxy)-(2RS)-propyl]-R-cysteinyl-S-serine (PAM(2)CS) compounds are potential vaccine adjuvants. In continuation of previously reported structure-activity relationships on this chemotype, we have determined that at least one acyl group of optimal length (C(16)) and an appropriately oriented ester carbonyl group is essential for TLR2-agonistic activity. The spacing between one of the palmitoyl ester carbonyl and the thioether is crucial to allow for an important H-bond, which observed in the crystal structure of the lipopeptide:TLR2 complex; consequently, activity is lost in homologated compounds. Penicillamine-derived analogues are also inactive, likely due to unfavorable steric interactions with the carbonyl of Ser 12 in TLR2. The thioether in this chemotype can be replaced with a selenoether. Importantly, the thioglycerol motif can be dispensed with altogether and can be replaced with a thioethanol bridge. These results have led to a structurally simpler, synthetically more accessible, and water-soluble analogue possessing strong TLR2-agonistic activities in human blood.

Indexed as

Adjuvants, Immunologicalpha-Linolenic AcidAnimalsHumansLinoleic AcidsLipopeptidesMiceModels, MolecularMolecular StructureSolubilityStereoisomerismStructure-Activity RelationshipToll-Like Receptor 2Adjuvants, Immunologicalpha-Linolenic AcidLinoleic AcidsLipopeptidesToll-Like Receptor 2

Identifiers

PMID22007676
PMCPMC3228886

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.