cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.74r8t9
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Chiloglanis carnosus, Chiloglanis congicus, Chiloglanis deckenii, Chiloglanis devosi, Chiloglanis dialloi, Chiloglanis disneyi, Chiloglanis elisabethianus, Chiloglanis emarginatus, Chiloglanis fasciatus, Chiloglanis harbinger, Chiloglanis kabaensis, Chiloglanis kalambo, Chiloglanis kerioensis, Chiloglanis kolente, Chiloglanis lamottei, Chiloglanis loffabrevum, Chiloglanis longibarbis, Chiloglanis lufirae, Chiloglanis lukugae, Chiloglanis macropterus, Chiloglanis marlieri, Chiloglanis mbozi, Chiloglanis microps, Chiloglanis modjensis, Chiloglanis mongoensis, Chiloglanis neumanni, Chiloglanis niger, Chiloglanis niloticus, Chiloglanis normani, Chiloglanis nzerekore, Chiloglanis occidentalis, Chiloglanis paratus, Chiloglanis pezoldi, Chiloglanis pojeri, Chiloglanis polyodon, Chiloglanis polypogon, Chiloglanis pretoriae, Chiloglanis reticulatus, Chiloglanis rukwaensis, Chiloglanis ruziziensis, Chiloglanis sanagaensis, Chiloglanis sardinhai, Chiloglanis somereni, Chiloglanis swierstrai, Chiloglanis trilobatus, Chiloglanis tweddlei, Chiloglanis voltae, Chiloglanis waterloti, Chilotilapia euchilus, Chilotilapia rhoadesii, Chindongo ater, Chindongo bellicosus, Chindongo cyaneus, Chindongo demasoni, Chindongo flavus, Chindongo heteropictus, Maylandia heteropicta, Chindongo longior, Chindongo minutus, Chindongo saulosi, Chromidotilapia cavalliensis, Chromidotilapia elongata, Chromidotilapia guntheri, Chromidotilapia kingsleyae, Chromidotilapia linkei, Chromidotilapia mamonekenei, Chromidotilapia melaniae, Chromidotilapia mrac, Chromidotilapia nana, Chromidotilapia regani, Chromidotilapia schoutedeni, Chrysichthys aluuensis, Chrysichthys ansorgii, Chrysichthys auratus, Chrysichthys bocagii, Chrysichthys brachynema, Chrysichthys brevibarbis, Chrysichthys cranchii, Chrysichthys dageti, Chrysichthys delhezi, Chrysichthys dendrophorus, Chrysichthys duttoni, Chrysichthys furcatus, Chrysichthys nigrodigitatus, Chrysichthys grandis, Chrysichthys graueri, Chrysichthys habereri, Chrysichthys helicophagus, Chrysichthys hildae, Chrysichthys johnelsi, Chrysichthys laticeps, Chrysichthys levequei, Chrysichthys longibarbis, Chrysichthys longidorsalis, Chrysichthys longipinnis, Chrysichthys mabusi, Chrysichthys macropterus, Chrysichthys maurus, Chrysichthys nyongensis)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((52.9229 -4.6891,52.7928 -5.4458,52.3502 -5.9456,52.3597 -6.2641,52.5923 -6.5238,52.2937 -6.7403,52.2917 -6.9401,53.175 -6.9401,53.1471 -6.7216,54.1043 -5.961,54.1687 -5.5199,53.8001 -5.19,53.8668 -4.7363,53.5536 -4.4067,53.1632 -4.4308,52.9229 -4.6891))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006487-250827131500795/datasets/export for details.
DOI: 10.22002/mn37q-rgq43
title: Vibrio delta-CheA3

description: Vibrio cholerae strain deleted for CheA3
description: <strong>Tilt Series Date:</strong> 2014-03-05</p>
<strong>Data Taken By:</strong> Ariane Briegel</p>
<strong>Species / Specimen:</strong> Vibrio cholerae</p>
<strong>Strain:</strong> O1 biovar El Tor</p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-60.0°, 60.0°), step: 1°, constant angular increment, dosage: 160.0 eV/Å²,  defocus: -10.0 μm,  magnification: 33000x. </p>
<strong>Microscope:</strong> Janelia Titan</p>
<strong>Acquisition Software:</strong> UCSFTomo</p>
<strong>Upload Method:</strong> pipeline</p>
<strong>Processing Software Used:</strong> Raptor</p>
<strong>Collaborators and Roles:</strong> Ikuro Kawagishi</p>
<strong>Purification / Growth Conditions / Treatment:</strong> Grew in LB 24 hours at 30C; diluted 150 µL into 2 mL Ca-HEPES buffer and grew 16 hours at 30C</p>
description: Files available via S3 at https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/aba2014-03-05-4/rawdata/</p>deltaA3AtlasBtgt.mrc,  Tilt Series (Pixel Size 0.33 nm), 241.0 MB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/aba2014-03-05-4/rawdata/deltaA3AtlasBtgt.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/csqbe-vvs16
title: Agro C58 22C liq

description: Raw data files of Agro C58 22C liq
description: <strong>Tilt Series Date:</strong> 2014-08-05</p>
<strong>Data Taken By:</strong> Elitza Tocheva</p>
<strong>Species / Specimen:</strong> Agrobacterium tumefaciens</p>
<strong>Strain:</strong> </p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-60.0°, 60.0°), step: 1.0°, constant angular increment, dosage: 200.0 eV/Å²,  defocus: -10.0 μm,  magnification: 22500x. </p>
<strong>Microscope:</strong> Caltech Polara</p>
<strong>Acquisition Software:</strong> UCSFTomo</p>
<strong>Upload Method:</strong> reupload_downloaded</p>
<strong>Processing Software Used:</strong> IMOD</p>
<strong>Collaborators and Roles:</strong> C58 from Pat Zambryski</p>
<strong>Purification / Growth Conditions / Treatment:</strong> 22C liquid</p>
<strong>Sample Preparation:</strong> Vitrobot</p>
description: Files available via S3 at https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/etl2014-08-05-41/rawdata/</p>22_C58_liq10003.mrc,  Tilt Series (Pixel Size 0.5 nm), 3.4 GB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/etl2014-08-05-41/rawdata/22_C58_liq10003.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/qfgqk-a1886
title: Agro_C58_22C_liq

description: Raw data files of Agro_C58_22C_liq
description: <strong>Tilt Series Date:</strong> 2014-09-05</p>
<strong>Data Taken By:</strong> Elitza Tocheva</p>
<strong>Species / Specimen:</strong> Agrobacterium tumefaciens</p>
<strong>Strain:</strong> </p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-60.0°, 60.0°), step: 1.0°, constant angular increment, dosage: 200.0 eV/Å²,  defocus: -10.0 μm,  magnification: 22500x. </p>
<strong>Microscope:</strong> Caltech Polara</p>
<strong>Acquisition Software:</strong> UCSFTomo</p>
<strong>Upload Method:</strong> pipeline</p>
<strong>Processing Software Used:</strong> Raptor</p>
<strong>Collaborators and Roles:</strong> strain from Pat Zambryski</p>
<strong>Purification / Growth Conditions / Treatment:</strong> 22C liquid</p>
<strong>Sample Preparation:</strong> Vitrobot</p>
description: Files available via S3 at https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/etl2014-09-05-29/rawdata/</p>c58_22_liq20003.mrc,  Tilt Series (Pixel Size 0.5 nm), 3.4 GB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/etl2014-09-05-29/rawdata/c58_22_liq20003.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/ab2db-4q250
title: Agrobacterium tumefaciens

description: Agrobacterium_VirB8-GFP_deltaVirB8
description: <strong>Tilt Series Date:</strong> 2013-05-07</p>
<strong>Data Taken By:</strong> Elitza Tocheva</p>
<strong>Species / Specimen:</strong> Agrobacterium tumefaciens</p>
<strong>Strain:</strong> </p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-60.0°, 60.0°), step: 1°, constant angular increment, dosage: 200.0 eV/Å²,  defocus: -10.0 μm,  magnification: 26000x. </p>
<strong>Acquisition Software:</strong> UCSF tomo</p>
<strong>Upload Method:</strong> uploadraptor</p>
<strong>Processing Software Used:</strong> Raptor</p>
<strong>Collaborators and Roles:</strong> strain from PatZambryski</p>
<strong>Purification / Growth Conditions / Treatment:</strong> Titan_K2</p>
<strong>Sample Preparation:</strong> quantifoil grid R2/2, 20nm gold, 100% humidity</p>
description: Files available via S3 at https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/etl2013-05-07-52/rawdata/</p>VirB_deltaVirB0004.mrc,  Tilt Series (Pixel Size 0.42 nm), 3.4 GB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/etl2013-05-07-52/rawdata/VirB_deltaVirB0004.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/m2bnm-0t481
title: Hyphomonas session7 41KX

description: high-order DNA, H-NS, nucleoid, asymmetric cell division
description: <strong>Tilt Series Date:</strong> 2009-02-05</p>
<strong>Data Taken By:</strong> Jian Shi</p>
<strong>Species / Specimen:</strong> Hyphomonas neptunium</p>
<strong>Strain:</strong> ATCC 15444</p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-63.0°, 63.0°), step: 1.5°, constant angular increment, dosage: 120.0 eV/Å²,  defocus: -5.0 μm,  magnification: 0x. </p>
<strong>Acquisition Software:</strong> Leginon</p>
<strong>Upload Method:</strong> rundir</p>
<strong>Processing Software Used:</strong> imod</p>
<strong>Collaborators and Roles:</strong> Cultured by Jian; data collected by Jian; processed by Jian</p>
<strong>Purification / Growth Conditions / Treatment:</strong> exponential phase in PYE media...</p>
<strong>Sample Preparation:</strong> C-flat grid, 10nm gold, 100% humidity...</p>
description: Files available via S3 at https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/jsa2009-02-05-61/rawdata/</p>09feb05a_Hm7I_074.mrc,  Tilt Series (Pixel Size 0.512 nm), 704.7 MB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/jsa2009-02-05-61/rawdata/09feb05a_Hm7I_074.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/8v4yk-z6e28
title: 1003_deletion w/o iron

description: Raw data files of 1003_deletion w/o iron
description: <strong>Tilt Series Date:</strong> 2009-11-12</p>
<strong>Data Taken By:</strong> Zhuo Li</p>
<strong>Species / Specimen:</strong> Magnetospirillum magneticum</p>
<strong>Strain:</strong> AMB-1</p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-63.0°, 63.0°), step: 1°, constant angular increment, dosage: 110.0 eV/Å²,  defocus: -15.0 μm,  magnification: 18000x. </p>
<strong>Acquisition Software:</strong> Leginon</p>
<strong>Upload Method:</strong> webload</p>
<strong>Processing Software Used:</strong> RAPTOR, Peach, IMOD</p>
<strong>Collaborators and Roles:</strong> Cells sent from Arash Komeili, data collected by ZL.</p>
<strong>Purification / Growth Conditions / Treatment:</strong> (Could be) Stationary phase</p>
<strong>Sample Preparation:</strong> Quantifoil R2/1 or R2/2, 10nm gold, 100% humidity</p>
description: Files available via S3 at https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/zla2009-11-12-5/rawdata/</p>09nov12a_mamknofe_005.mrc,  Tilt Series (Pixel Size 1.192 nm), 1.1 GB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/zla2009-11-12-5/rawdata/09nov12a_mamknofe_005.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/1xdjs-1hs84
title: mature HIV-1

description: mature HIV-1, single axis, total dose 60 e/A2
description: <strong>Tilt Series Date:</strong> 2005-04-26</p>
<strong>Data Taken By:</strong> Elizabeth Wright</p>
<strong>Species / Specimen:</strong> mature HIV-1</p>
<strong>Strain:</strong> </p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-63.0°, 63.0°), step: 2°, constant angular increment, dosage: 60.0 eV/Å²,  defocus: 6.0 μm,  magnification: 0x. </p>
<strong>Acquisition Software:</strong> UCSF Tomo</p>
<strong>Upload Method:</strong> webload</p>
<strong>Processing Software Used:</strong> </p>
<strong>Collaborators and Roles:</strong> N/A</p>
<strong>Purification / Growth Conditions / Treatment:</strong> prepared by the Sundquist lab</p>
<strong>Sample Preparation:</strong> R0.6/1 quantifoil, 10 nm gold, 100% humidity</p>
description: Files available via S3 at ttps://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/ewr2005-04-26-10/rawdata/</p>hiv_41kx_6um_pos6_042605_b.mrc,  Tilt Series (Pixel Size 5.6 nm), 562.2 MB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/ewr2005-04-26-10/rawdata/hiv_41kx_6um_pos6_042605_b.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/cz0ct-8vb27
title: mature HIV-1

description: mature HIV-1, single axis, total dose 120 e/A2
description: <strong>Tilt Series Date:</strong> 2005-04-25</p>
<strong>Data Taken By:</strong> Elizabeth Wright</p>
<strong>Species / Specimen:</strong> mature HIV-1</p>
<strong>Strain:</strong> </p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-70.0°, 70.0°), step: 2°, constant angular increment, dosage: 120.0 eV/Å²,  defocus: 4.0 μm,  magnification: 0x. </p>
<strong>Acquisition Software:</strong> UCSF Tomo</p>
<strong>Upload Method:</strong> webload</p>
<strong>Processing Software Used:</strong> </p>
<strong>Collaborators and Roles:</strong> N/A</p>
<strong>Purification / Growth Conditions / Treatment:</strong> prepared by the Sundquist lab</p>
<strong>Sample Preparation:</strong> R0.6/1 quantifoil, 10 nm gold, 100% humidity</p>
description: Files available via S3 at https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/ewr2005-04-25-9/rawdata/</p>HIV_41kx_4um_120e_Apr2505_b.mrc,  Tilt Series (Pixel Size 5.6 nm), 604.1 MB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/ewr2005-04-25-9/rawdata/HIV_41kx_4um_120e_Apr2505_b.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.22002/ybhne-faw12
title: mature HIV-1

description: mature HIV-1, single axis, total dose 120 e/A2
description: <strong>Tilt Series Date:</strong> 2005-04-29</p>
<strong>Data Taken By:</strong> Elizabeth Wright</p>
<strong>Species / Specimen:</strong> mature HIV-1</p>
<strong>Strain:</strong> </p>
<strong>Tilt Series Settings:</strong>  Single Axis, tilt range: (-70.0°, 70.0°), step: 2°, constant angular increment, dosage: 120.0 eV/Å²,  defocus: 4.0 μm,  magnification: 0x. </p>
<strong>Acquisition Software:</strong> UCSF Tomo</p>
<strong>Upload Method:</strong> webload</p>
<strong>Processing Software Used:</strong> </p>
<strong>Collaborators and Roles:</strong> N/A</p>
<strong>Purification / Growth Conditions / Treatment:</strong> prepared by the Sundquist lab</p>
<strong>Sample Preparation:</strong> R0.6/1 quantifoil, 10 nm gold, 100% humidity</p>
description: Files available via S3 at ttps://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/ewr2005-04-29-9/rawdata/</p>hiv2005429_i_41kx_4um.mrc,  Tilt Series (Pixel Size 5.6 nm), 604.1 MB  
        
<a role="button" class="ui compact mini button" href="https://sdsc.osn.xsede.org/ini210004tommorrell/tomography_archive/ewr2005-04-29-9/rawdata/hiv2005429_i_41kx_4um.mrc"
        > <i class="download icon"></i> Download </a></p>
DOI: 10.15468/dl.t4bj64
title: Occurrence Download

description: A dataset containing 285 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Taeniopygia guttata",
 "Country is Belgium",
 "HasCoordinate is true"
 ]
}

 The dataset includes 285 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006489-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rpzzpe
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Taeniopygia guttata",
 "Country is Colombia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 6 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006491-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.e6px9g
title: Occurrence Download

description: A dataset containing 921 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Acartia pacifica"
 ]
}

 The dataset includes 921 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006492-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.28333249
title: The role of TRECs/KRECs as immune indicators that reflect immunophenotypes and predict the risk of infection in systemic autoimmune diseases

description: T cell receptor rearrangement excision circles (TRECs) and immunoglobulin κ-deleting recombination excision circles (KRECs) represent the lymphopoiesis capacity, widely used for newborn screening of inborn errors of immunity. To clarify the significance of TRECs and KRECs as immune indicators in patients with systemic autoimmune diseases, we prospectively evaluated TREC and KREC levels with qPCR, lymphocyte phenotypes with flow cytometry, along with lymphocyte counts and serum immunoglobulin levels in peripheral blood samples from newly diagnosed patients. Each variable was assessed before immunosuppressive treatments (baseline), 3-, 6-, and 12-months after the treatment. Severe infections were recorded until 6 months after treatment. Among 35 patients, TREC and KREC levels were associated positively with the proportion of recent thymic emigrants, naïve T and B cells at all the timepoints. TREC and KREC levels decreased after treatment. The ratios of TREC and KREC levels under treatment to baseline were significantly lower in patients with severe infection than those without. In conclusion, TREC and KREC levels reflect peripheral blood immunophenotypes, specifically recent-emigrated T and B cells, in patients under treatment-naïve and immunosuppressive conditions. The longitudinal changes in TREC and KREC levels were beneficial markers for predicting the risk of severe infection during immunosuppressive treatments.
DOI: 10.6084/m9.figshare.28333249.v1
title: The role of TRECs/KRECs as immune indicators that reflect immunophenotypes and predict the risk of infection in systemic autoimmune diseases

description: T cell receptor rearrangement excision circles (TRECs) and immunoglobulin κ-deleting recombination excision circles (KRECs) represent the lymphopoiesis capacity, widely used for newborn screening of inborn errors of immunity. To clarify the significance of TRECs and KRECs as immune indicators in patients with systemic autoimmune diseases, we prospectively evaluated TREC and KREC levels with qPCR, lymphocyte phenotypes with flow cytometry, along with lymphocyte counts and serum immunoglobulin levels in peripheral blood samples from newly diagnosed patients. Each variable was assessed before immunosuppressive treatments (baseline), 3-, 6-, and 12-months after the treatment. Severe infections were recorded until 6 months after treatment. Among 35 patients, TREC and KREC levels were associated positively with the proportion of recent thymic emigrants, naïve T and B cells at all the timepoints. TREC and KREC levels decreased after treatment. The ratios of TREC and KREC levels under treatment to baseline were significantly lower in patients with severe infection than those without. In conclusion, TREC and KREC levels reflect peripheral blood immunophenotypes, specifically recent-emigrated T and B cells, in patients under treatment-naïve and immunosuppressive conditions. The longitudinal changes in TREC and KREC levels were beneficial markers for predicting the risk of severe infection during immunosuppressive treatments.
DOI: 10.6084/m9.figshare.28343867
title: Characteristic TARC/CCL17 expression in the salivary gland of IgG4-related disease: potential diagnostic utility and insights into pathogenesis

description: Immunoglobulin G4-related disease (IgG4-RD) is a chronic inflammatory condition of unknown etiology characterized by lymphocytic infiltration, fibrosis, and infiltration of IgG4-positive plasma cells. It affects various organs, including the pancreas and salivary glands. Immunological abnormalities are suspected to play a role in its pathogenesis, and there is an epidemiological link to allergic conditions and type 2 inflammation. This study focused on the expression of thymus and activation-regulated chemokine (TARC)/CCL17, which is involved in the migration of T helper 2 and/or regulatory T cells, in salivary gland tissues of patients with IgG4-RD. We analyzed 60 salivary gland biopsy samples obtained from patients at Sapporo Medical University Hospital between 2015 and 2020. Immunohistochemical analysis revealed TARC/CCL17 positivity in 87.2% of histologically confirmed IgG4-RD cases and negativity in 84.6% of histologically unconfirmed but clinically suspected IgG4-RD cases. There was a significant correlation between histologically confirmed IgG4-RD and TARC/CCL17 expression, suggesting its potential diagnostic utility and possible involvement in the pathogenesis of IgG4-RD.
DOI: 10.6084/m9.figshare.28343867.v1
title: Characteristic TARC/CCL17 expression in the salivary gland of IgG4-related disease: potential diagnostic utility and insights into pathogenesis

description: Immunoglobulin G4-related disease (IgG4-RD) is a chronic inflammatory condition of unknown etiology characterized by lymphocytic infiltration, fibrosis, and infiltration of IgG4-positive plasma cells. It affects various organs, including the pancreas and salivary glands. Immunological abnormalities are suspected to play a role in its pathogenesis, and there is an epidemiological link to allergic conditions and type 2 inflammation. This study focused on the expression of thymus and activation-regulated chemokine (TARC)/CCL17, which is involved in the migration of T helper 2 and/or regulatory T cells, in salivary gland tissues of patients with IgG4-RD. We analyzed 60 salivary gland biopsy samples obtained from patients at Sapporo Medical University Hospital between 2015 and 2020. Immunohistochemical analysis revealed TARC/CCL17 positivity in 87.2% of histologically confirmed IgG4-RD cases and negativity in 84.6% of histologically unconfirmed but clinically suspected IgG4-RD cases. There was a significant correlation between histologically confirmed IgG4-RD and TARC/CCL17 expression, suggesting its potential diagnostic utility and possible involvement in the pathogenesis of IgG4-RD.