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To evaluate the effect of s\u03bcg on bone marrow (BM), male C57Bl\/6N mice were divided into three groups: vivarium control (VC), 30-day hindlimb suspension (HS), and subsequent 12-h short-term support reloading (RL). The effects on BM total mononucleated cells (MNCs) as well as stromal and hematopoietic progenitors from murine tibia were studied. The number of BM MNCs, immunophenotype, proliferation, colony-forming units (CFUs), differentiation and secretory activity of hematopoietic and stromal BM cells were determined. HS led to a twofold decrease in MNCs, alteration of surface molecule expression profiles, suppression of proliferative activity of BM cells, and change of soluble mediators' levels. The stromal compartment was characterized by a decrease of CFU of fibroblasts and suppression of spontaneous osteo-commitment after HS. Among the hematopoietic precursors, a decrease in the total number of CFUs was found mainly at the expense of suppression of CFU-GM and CFU-GEMM. After RL, restoration of the stromal precursor's functional activity to control levels and overabundance of paracrine mediator's production were detected, whereas the complete recovery of hematopoietic precursor's activity did not occur. These data demonstrate the fast functional reaction of the stromal compartment on restoration of loading support.<\/jats:p>","DOI":"10.1089\/scd.2021.0111","type":"journal-article","created":{"date-parts":[[2021,10,29]],"date-time":"2021-10-29T10:34:48Z","timestamp":1635503688000},"page":"1228-1240","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Short-Term Reloading After Prolonged Unloading Ensures Restoration of Stromal but Not Hematopoietic Precursor Activity in Tibia Bone Marrow of C57Bl\/6N Mice"],"prefix":"10.1177","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0631-9082","authenticated-orcid":false,"given":"Elena A.","family":"Markina","sequence":"first","affiliation":[{"name":"Cell Physiology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russian Federation."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8498-2907","authenticated-orcid":false,"given":"Olga Y.","family":"Alekseeva","sequence":"additional","affiliation":[{"name":"Cell Physiology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russian Federation."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elena R.","family":"Andreeva","sequence":"additional","affiliation":[{"name":"Cell Physiology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russian Federation."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ludmila B.","family":"Buravkova","sequence":"additional","affiliation":[{"name":"Cell Physiology Laboratory, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russian Federation."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2021,12,16]]},"reference":[{"key":"e_1_3_5_2_2","doi-asserted-by":"publisher","DOI":"10.1089\/scd.2014.0408"},{"key":"e_1_3_5_3_2","doi-asserted-by":"publisher","DOI":"10.1089\/scd.2017.0264"},{"key":"e_1_3_5_4_2","doi-asserted-by":"publisher","DOI":"10.1134\/S1990519X18030069"},{"key":"e_1_3_5_5_2","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00997.2015"},{"key":"e_1_3_5_6_2","doi-asserted-by":"publisher","DOI":"10.1152\/ajpendo.00330.2012"},{"key":"e_1_3_5_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bone.2007.02.012"},{"key":"e_1_3_5_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bone.2005.04.033"},{"key":"e_1_3_5_9_2","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.2000.89.3.1046"},{"key":"e_1_3_5_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bone.2013.09.003"},{"key":"e_1_3_5_11_2","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00576.2014"},{"key":"e_1_3_5_12_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0092664"},{"key":"e_1_3_5_13_2","doi-asserted-by":"publisher","DOI":"10.1096\/fj.14-259770"},{"key":"e_1_3_5_14_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-019-44468-w"},{"key":"e_1_3_5_15_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2141.2003.04669.x"},{"key":"e_1_3_5_16_2","first-page":"534","article-title":"Immunophenotyping of acute leukemia by flow cytometric analysis","volume":"100","author":"Borowitz MJ","year":"1993","unstructured":"Borowitz MJ, , Guenther KL, , Shults KE, and Stelzer GT. 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