Evidence map›Paper›PMID 41369347›Full record

ReviewCells2025

Cellular and Molecular Roles of Human Odorant-Binding Proteins and Related Lipocalins in Olfaction and Neuroinflammation.

Juchan Ha, Hyojin Kim, Hyungsup Kim, Yongwoo Jang

Abstract readReview
In one paragraph

Review in Cells, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

4 authors.

Juchan HaDepartment of Medical and Digital Engineering, College of Engineering, Hanyang University, Seoul 04736, Republic of Korea.ORCID 0009-0009-7164-1896
Hyojin KimDepartment of Medical and Digital Engineering, College of Engineering, Hanyang University, Seoul 04736, Republic of Korea.
Hyungsup KimResearch Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea.ORCID 0000-0003-2008-198X
Yongwoo JangDepartment of Medical and Digital Engineering, College of Engineering, Hanyang University, Seoul 04736, Republic of Korea.ORCID 0000-0003-1574-9009

Funding

National Research Foundation of Korea RS-2023-00302751National Research Foundation of Korea RS-2025-25399773Sookmyung Women's University Research Grant 1-2503-2013
6 · The paper itself

Abstract

Olfactory perception depends on soluble proteins in the perireceptor environment that support odorant transport, mucosal protection, and tissue homeostasis. In insects, odorant-binding proteins (OBPs) in the sensillum lymph are indispensable for odor detection, whereas in humans the indispensability of OBPs (OBP2A/2B) remains unclear because they are inconsistently detected in nasal mucus. Consequently, it remains unclear whether other soluble proteins compensate for this function or how they contribute to odorant processing and signal transmission within the olfactory mucus. Accumulating evidence indicates that OBP-like lipocalins (LCN1, LCN2, LCN15) and apolipoprotein D, together with bactericidal/permeability-increasing (BPI)-fold proteins, act as major mediators of odorant solubilization, antimicrobial defense, oxidative stress regulation, and extracellular matrix (ECM) remodeling. Alterations in those proteins and ECM organization are linked to idiopathic and age-related smell loss, chronic rhinosinusitis, and neurodegenerative disorders, underscoring their broad relevance at the interface of chemosensation, mucosal defense, and brain health. Major unresolved issues include the functional indispensability of human OBPs, the receptor-specific contributions of OBP-like proteins, and the mechanistic relationships linking olfactory proteome remodeling, sensory signaling, and disease progression. This review provides an integrative overview of structural and mechanistic insights, highlights current controversies, and proposes future research directions, including receptor-protein mapping, integrated structural-functional studies, structural-functional analysis of OBP-ECM networks, and clinical validation of OBP-related biomarkers.

Indexed as

LipocalinsNeuroinflammatory DiseasesReceptors, OdorantSmellAnimalsHumansLipocalinsodorant-binding proteinReceptors, Odorantchronic rhinosinusitislipocalinsneurodegenerationodorant-binding proteinsolfactory mucus

Identifiers

PMID41369347
PMCPMC12691349

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Registered trials

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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.