{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T11:12:09Z","timestamp":1782213129581,"version":"3.54.5"},"reference-count":84,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,2,4]],"date-time":"2022-02-04T00:00:00Z","timestamp":1643932800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001807","name":"S\u00e3o Paulo Research Foundation","doi-asserted-by":"publisher","award":["2020\/15751-5"],"award-info":[{"award-number":["2020\/15751-5"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cells"],"abstract":"<jats:p>Bone is the most common site of metastasis in breast cancer. Metastasis is promoted by acidosis, which is associated with osteoporosis. To investigate how acidosis could promote bone metastasis, we compared differentially expressed genes (DEGs) in MDA-MB-231 cancer cells in acidosis, bone metastasis, and bone metastatic tumors. The DEGs were identified using Biojupies and GEO2R. The expression profiles were assessed with Morpheus. The overlapping DEGs between acidosis and bone metastasis were compared to the bulk of the DEGs in terms of the most important genes and enriched terms using CytoHubba and STRING. The expression of the genes in this overlap filtered by secreted proteins was assessed in the osteoporosis secretome. The analysis revealed that acidosis-associated transcriptomic changes were more similar to bone metastasis than bone metastatic tumors. Extracellular matrix (ECM) organization would be the main biological process shared between acidosis and bone metastasis. The secretome genes upregulated in acidosis, bone metastasis, and osteoporosis-associated mesenchymal stem cells are enriched for ECM organization and angiogenesis. Therefore, acidosis may be more important in the metastatic niche than in the primary tumor. Acidosis may contribute to bone metastasis by promoting ECM organization. Untreated osteoporosis could favor bone metastasis through the increased secretion of ECM organization proteins.<\/jats:p>","DOI":"10.3390\/cells11030544","type":"journal-article","created":{"date-parts":[[2022,2,4]],"date-time":"2022-02-04T11:35:17Z","timestamp":1643974517000},"page":"544","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Transcriptomic Response to Acidosis Reveals Its Contribution to Bone Metastasis in Breast Cancer Cells"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6919-6369","authenticated-orcid":false,"given":"Ana Sayuri","family":"Yamagata","sequence":"first","affiliation":[{"name":"Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo 05508-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0649-8279","authenticated-orcid":false,"given":"Paula Paccielli","family":"Freire","sequence":"additional","affiliation":[{"name":"Department of Immunology, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo 05508-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1024-5151","authenticated-orcid":false,"given":"N\u00edcolas","family":"Jones Villarinho","sequence":"additional","affiliation":[{"name":"Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo 05508-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9511-4251","authenticated-orcid":false,"given":"Ramon Handerson Gomes","family":"Teles","sequence":"additional","affiliation":[{"name":"Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo 05508-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kelliton Jos\u00e9 Mendon\u00e7a","family":"Francisco","sequence":"additional","affiliation":[{"name":"Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo 05508-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruy Gastaldoni","family":"Jaeger","sequence":"additional","affiliation":[{"name":"Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo 05508-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9613-8626","authenticated-orcid":false,"given":"Vanessa Morais","family":"Freitas","sequence":"additional","affiliation":[{"name":"Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo 05508-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"209","DOI":"10.3322\/caac.21660","article-title":"Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. 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