Peer Review History
| Original SubmissionNovember 28, 2025 |
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Dear Dr. Cattoretti, Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process. plosone@plos.org. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.
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Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols.... We look forward to receiving your revised manuscript. Kind regards, Deborah S. Cunninghame Graham Academic Editor PLOS One Journal Requirements: When submitting your revision, we need you to address these additional requirements. 1. Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming. The PLOS ONE style templates can be found at https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf and 2. Please provide additional details regarding participant consent. In the ethics statement in the Methods and online submission information, please ensure that you have specified (1) whether consent was informed and (2) what type you obtained (for instance, written or verbal, and if verbal, how it was documented and witnessed). If your study included minors, state whether you obtained consent from parents or guardians. If the need for consent was waived by the ethics committee, please include this information. If you are reporting a retrospective study of medical records or archived samples, please ensure that you have discussed whether all data were fully anonymized before you accessed them and/or whether the IRB or ethics committee waived the requirement for informed consent. If patients provided informed written consent to have data from their medical records used in research, please include this information. 3. Thank you for stating the following financial disclosure: “Regione Lombardia POR FESR 2014–2020, Call HUB Ricerca ed Innovazione: ImmunHUB. (GCat and MMB) EU Horizon 2020 programme (GenoMed4All project #101017549, HARMONY and HARMONY-PLUS project #116026) (GCast) The AIRC Foundation (Associazione Italiana per la Ricerca contro il Cancro; Milan, Italy; projects #26216. (GCast) KUL INTERNE FONDSEN MIDDEL-Zware infrastructuren EMH-D8191-AKUL/19/30 I005920N (FMB) FWO Fundamenteel Klinisch Mandaat EMH-D8972-FKM/20. (FMB) The National Recovery and Resilience Plan (NRRP), Mission 4 Component 2 Investment 1.4 - Call for tender No. 3138 of 16 December 2021, rectified by Decree n.3175 of 18 December 2021 of Italian Ministry of University and Research funded by the European Union – NextGenerationEU; Project code CN_00000033, Concession Decree No. 1034 of 17 June 2022 adopted by the Italian Ministry of University and Research, CUP B83C2200293000 , Project title “National Biodiversity Future Center - NBFC”. (MMB)” Please state what role the funders took in the study. If the funders had no role, please state: "The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript." If this statement is not correct you must amend it as needed. Please include this amended Role of Funder statement in your cover letter; we will change the online submission form on your behalf. 4. Please be informed that funding information should not appear in the Acknowledgments section or other areas of your manuscript. We will only publish funding information present in the Funding Statement section of the online submission form. Please remove any funding-related text from the manuscript. 5. If the reviewer comments include a recommendation to cite specific previously published works, please review and evaluate these publications to determine whether they are relevant and should be cited. There is no requirement to cite these works unless the editor has indicated otherwise. 6. Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice. Additional Editor Comments (if provided): The manuscript needs minor revisions - as laid out in the comments by reviewer 2. Please can you ensure that you clarify which findings the authors consider the most biologically significant, and how these results relate to prior knowledge or to findings from alternative approaches such as scRNA-seq or spatial transcriptomics. Major comments: Given the large number of cell types defined, it would be helpful to clarify whether each represents a biologically distinct population or whether some reflect minor variations around an individual baseline phenotype. For each cell type, could the authors quantify inter-individual variability in spatial localisation across lymph nodes? In particular, Fig. 11 suggests substantial differences in the localisation of distinct dendritic cell subsets between samples. However, it is unclear to what extent this reflects true biological variability versus differences arising from the plane of tissue sectioning. For cell types not previously described, or not previously described in situ, could the authors further validate these populations? For example, this could include staining adjacent sections from the same lymph nodes with additional markers, examining lymph nodes from additional donors, or identifying analogous populations in previously published datasets. Throughout the manuscript, the authors could more clearly relate their findings to previous studies of human lymph nodes and clarify how the cell types they define correspond to those described in other work. Several groups have mapped lymph node cell populations using approaches such as scRNA-seq and spatial transcriptomics, each with distinct strengths and limitations. A more explicit comparison would help readers understand which aspects of lymph node biology are best resolved by multiplexed immunofluorescence versus transcriptomic methods, and where the results are concordant or divergent. How did the authors decide which clusters to group together into a single cell type? How much phenotypic variability exists among the clusters grouped into each cell type, and how can one be confident that these represent a single biological population rather than a mixture of related but distinct cell types? How much inter-individual variability was observed in cellular neighbourhoods, and is this variability accounted for statistically? Which neighbourhood relationships were highly consistent across donors, and which appeared donor-specific? Minor comments: Not all figures are referenced in order in the text. HDBSCAN appears to identify a large number of very small clusters (e.g. for myeloid cells in Fig. 2D). How should these small clusters be interpreted biologically? By how many markers do these clusters typically differ, and how sensitive are the results to the choice of clustering algorithm or parameters? Did you identify any association between, for example age, and cell type frequency? Table 2 and 3 – how were the markers chosen for CD4 and CD8 classification (e.g. TCF7, FOXP3, TIM3, PD1, CD137, Ki67)? Clarifying this rationale would improve reproducibility and interpretability. The cluster labels in Fig. 3 align with those in Fig. 4. However, the strategy for defining these cell types using TCF7 in combination with FOXP3, checkpoint molecules, and Ki67 is not described in the text until later (when introducing Fig. 4) – this is confusing for the reader. Line 269-270 – the authors describe effector cells as progenitor exhausted (Tpex). Given that this is a healthy human LN cohort, would one expect Tpex cells to be present at such frequencies? If so, additional discussion or justification would be helpful. Line 373-374 – given that some CD5⁺ subsets lack canonical B cell markers, how can their B cell identity be confirmed (for cells not expressing IgD)? Is it possible that some of these clusters represent mixed populations? Line 515 – given that ILC3s are reported in situ, could the authors validate the localisation of this population by staining adjacent sections with additional ILC3 markers, or by comparison with published spatial datasets? [Note: HTML markup is below. Please do not edit.] Reviewers' comments: Reviewer's Responses to Questions Comments to the Author 1. Is the manuscript technically sound, and do the data support the conclusions? Reviewer #1: Yes Reviewer #2: Yes ********** 2. Has the statistical analysis been performed appropriately and rigorously? -->?> Reviewer #1: Yes Reviewer #2: Yes ********** 3. Have the authors made all data underlying the findings in their manuscript fully available??> The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.--> Reviewer #1: Yes Reviewer #2: Yes ********** 4. Is the manuscript presented in an intelligible fashion and written in standard English??> Reviewer #1: Yes Reviewer #2: Yes ********** Reviewer #1: This paper serves as a comprehensive resource. The authors compiled a geographical atlas of the normal human lymph node by staining sections from 19 lymph nodes with a 78-marker antibody panel and analyzing the data using the BRAQUE pipeline. The lymph nodes were considered normal based on their small size and the absence of pathological features. Both the MILAN staining method—which involves multiple cycles of staining and stripping—and the BRAQUE bioinformatic pipeline were validated. The antibody panel included markers of cell differentiation, chemokine receptors, and transcription factors. In total, 77 distinct cell types were identified, including T cells, B cells, dendritic cells, innate immune cells, and stromal cells. Their spatial localization within the major, well-defined lymph node compartments was described. Single-cell RNA sequencing technologies have shown that cells with similar phenotypes can exhibit different functional states, leading to the identification of novel cellular populations. This atlas provides a framework to investigate these populations in situ, and their relative distribution within lymph nodes may help elucidate their functional roles in vivo, within the tissue where immune responses occur. The paper is complex, but the extensive figures and tables presented in both the main text and supplementary materials are essential for data completeness and for facilitating reuse by other researchers. Reviewer #2: Summary: The authors use a high-dimensional cyclic immunofluorescence approach, specifically MILAN, to study cell populations and their spatial organisation in healthy human lymph nodes. Overall the paper is comprehensive and provides a rich and useful resource. However, it is not immediately clear which findings the authors consider the most biologically significant, nor how the results relate to prior knowledge or to findings from alternative approaches such as scRNA-seq or spatial transcriptomics. Major comments: Given the large number of cell types defined, it would be helpful to clarify whether each represents a biologically distinct population or whether some reflect minor variations around an individual baseline phenotype. For each cell type, could the authors quantify inter-individual variability in spatial localisation across lymph nodes? In particular, Fig. 11 suggests substantial differences in the localisation of distinct dendritic cell subsets between samples. However, it is unclear to what extent this reflects true biological variability versus differences arising from the plane of tissue sectioning. For cell types not previously described, or not previously described in situ, could the authors further validate these populations? For example, this could include staining adjacent sections from the same lymph nodes with additional markers, examining lymph nodes from additional donors, or identifying analogous populations in previously published datasets. Throughout the manuscript, the authors could more clearly relate their findings to previous studies of human lymph nodes and clarify how the cell types they define correspond to those described in other work. Several groups have mapped lymph node cell populations using approaches such as scRNA-seq and spatial transcriptomics, each with distinct strengths and limitations. A more explicit comparison would help readers understand which aspects of lymph node biology are best resolved by multiplexed immunofluorescence versus transcriptomic methods, and where the results are concordant or divergent. How did the authors decide which clusters to group together into a single cell type? How much phenotypic variability exists among the clusters grouped into each cell type, and how can one be confident that these represent a single biological population rather than a mixture of related but distinct cell types? How much inter-individual variability was observed in cellular neighbourhoods, and is this variability accounted for statistically? Which neighbourhood relationships were highly consistent across donors, and which appeared donor-specific? Minor comments: Not all figures are referenced in order in the text. HDBSCAN appears to identify a large number of very small clusters (e.g. for myeloid cells in Fig. 2D). How should these small clusters be interpreted biologically? By how many markers do these clusters typically differ, and how sensitive are the results to the choice of clustering algorithm or parameters? Did you identify any association between, for example age, and cell type frequency? Table 2 and 3 – how were the markers chosen for CD4 and CD8 classification (e.g. TCF7, FOXP3, TIM3, PD1, CD137, Ki67)? Clarifying this rationale would improve reproducibility and interpretability. The cluster labels in Fig. 3 align with those in Fig. 4. However, the strategy for defining these cell types using TCF7 in combination with FOXP3, checkpoint molecules, and Ki67 is not described in the text until later (when introducing Fig. 4) – this is confusing for the reader. Line 269-270 – the authors describe effector cells as progenitor exhausted (Tpex). Given that this is a healthy human LN cohort, would one expect Tpex cells to be present at such frequencies? If so, additional discussion or justification would be helpful. Line 373-374 – given that some CD5⁺ subsets lack canonical B cell markers, how can their B cell identity be confirmed (for cells not expressing IgD)? Is it possible that some of these clusters represent mixed populations? Line 515 – given that ILC3s are reported in situ, could the authors validate the localisation of this population by staining adjacent sections with additional ILC3 markers, or by comparison with published spatial datasets? ********** what does this mean?). If published, this will include your full peer review and any attached files.). If published, this will include your full peer review and any attached files.). If published, this will include your full peer review and any attached files.). If published, this will include your full peer review and any attached files. If you choose “no”, your identity will remain anonymous but your review may still be made public. Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our For information about this choice, including consent withdrawal, please see our For information about this choice, including consent withdrawal, please see our For information about this choice, including consent withdrawal, please see our Privacy Policy..--> Reviewer #1: Yes: Rita CarsettiRita CarsettiRita CarsettiRita Carsetti Reviewer #2: No ********** [NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.] To ensure your figures meet our technical requirements, please review our figure guidelines: https://journals.plos.org/plosone/s/figures You may also use PLOS’s free figure tool, NAAS, to help you prepare publication quality figures: https://journals.plos.org/plosone/s/figures#loc-tools-for-figure-preparation. NAAS will assess whether your figures meet our technical requirements by comparing each figure against our figure specifications. |
| Revision 1 |
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The normal human lymph node cell classification and landscape defined by high-dimensional spatial proteomic PONE-D-25-63676R1 Dear Dr. Cattoretti, We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements. Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication. An invoice will be generated when your article is formally accepted. Please note, if your institution has a publishing partnership with PLOS and your article meets the relevant criteria, all or part of your publication costs will be covered. Please make sure your user information is up-to-date by logging into Editorial Manager at Editorial Manager® and clicking the ‘Update My Information' link at the top of the page. 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Cunninghame Graham Academic Editor PLOS One Additional Editor Comments (optional): Thank you for submitting your revision. All the reviewer's comments have been addressed - so I recommend acceptance of the manuscript. Reviewers' comments: Reviewer's Responses to Questions Comments to the Author Reviewer #1: All comments have been addressed Reviewer #2: All comments have been addressed ********** 2. Is the manuscript technically sound, and do the data support the conclusions??> Reviewer #1: Yes Reviewer #2: Yes ********** 3. Has the statistical analysis been performed appropriately and rigorously? -->?> Reviewer #1: Yes Reviewer #2: Yes ********** 4. Have the authors made all data underlying the findings in their manuscript fully available??> The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.--> Reviewer #1: Yes Reviewer #2: Yes ********** 5. Is the manuscript presented in an intelligible fashion and written in standard English??> Reviewer #1: Yes Reviewer #2: Yes ********** Reviewer #1: This paper provides a valuable resource for the study of the human lymph node. The authors' revisions in response to the reviewers' comments have added useful details and improved the precision of the work. Reviewer #2: (No Response) ********** what does this mean?). If published, this will include your full peer review and any attached files.). If published, this will include your full peer review and any attached files.). If published, this will include your full peer review and any attached files.). If published, this will include your full peer review and any attached files. If you choose “no”, your identity will remain anonymous but your review may still be made public. Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our For information about this choice, including consent withdrawal, please see our For information about this choice, including consent withdrawal, please see our For information about this choice, including consent withdrawal, please see our Privacy Policy..--> Reviewer #1: Yes: Rita CarsettiRita CarsettiRita CarsettiRita Carsetti Reviewer #2: No ********** |
| Formally Accepted |
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PONE-D-25-63676R1 PLOS One Dear Dr. Cattoretti, I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS One. Congratulations! Your manuscript is now being handed over to our production team. At this stage, our production department will prepare your paper for publication. This includes ensuring the following: * All references, tables, and figures are properly cited * All relevant supporting information is included in the manuscript submission, * There are no issues that prevent the paper from being properly typeset You will receive further instructions from the production team, including instructions on how to review your proof when it is ready. Please keep in mind that we are working through a large volume of accepted articles, so please give us a few days to review your paper and let you know the next and final steps. Lastly, if your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org. You will receive an invoice from PLOS for your publication fee after your manuscript has reached the completed accept phase. If you receive an email requesting payment before acceptance or for any other service, this may be a phishing scheme. Learn how to identify phishing emails and protect your accounts at https://explore.plos.org/phishing. If we can help with anything else, please email us at customercare@plos.org. Thank you for submitting your work to PLOS ONE and supporting open access. Kind regards, PLOS ONE Editorial Office Staff on behalf of Dr. Deborah S. Cunninghame Graham Academic Editor PLOS One |
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