
{"id":19693,"date":"2021-08-27T09:00:29","date_gmt":"2021-08-27T09:00:29","guid":{"rendered":"https:\/\/dev2.btitrainingcenter.com\/protein-adsorption-desorption-dynamics-on-ca-enriched-titanium-surfaces-biological-implications\/"},"modified":"2025-03-04T13:44:04","modified_gmt":"2025-03-04T12:44:04","slug":"protein-adsorption-desorption-dynamics-on-ca-enriched-titanium-surfaces-biological-implications","status":"publish","type":"post","link":"https:\/\/www.btitrainingcenter.com\/it\/protein-adsorption-desorption-dynamics-on-ca-enriched-titanium-surfaces-biological-implications\/","title":{"rendered":"Protein adsorption\/desorption dynamics on Ca-enriched titanium surfaces: biological implications"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row content_text_aligment=&#8221;left&#8221; row_background_lines=&#8221;no&#8221;][vc_column][vc_column_text]<\/p>\n<h3 class=\"title\">Abstract<\/h3>\n<div id=\"enc-abstract\" class=\"abstract-content selected\">\n<div id=\"enc-abstract\" class=\"abstract-content selected\">\n<div id=\"abstract\" class=\"abstract\">\n<div id=\"enc-abstract\" class=\"abstract-content selected\">\n<p>Calcium ions are used in the development of biomaterials for the promotion of coagulation, bone regeneration, and implant osseointegration. Upon implantation, the time-dependent release of calcium ions from titanium implant surfaces modifies the physicochemical characteristics at the implant-tissue interface and thus, the biological responses. The aim of this study is to examine how the dynamics of protein adsorption on these surfaces change over time. Titanium discs with and without Ca were incubated with human serum for 2 min, 180 min, and 960 min. The layer of proteins attached to the surface was characterised using nLC-MS\/MS. The adsorption kinetics was different between materials, revealing an increased adsorption of proteins associated with coagulation and immune responses prior to Ca release. Implant-blood contact experiments confirmed the strong coagulatory effect for Ca surfaces. We employed primary human alveolar osteoblasts and THP-1 monocytes to study the osteogenic and inflammatory responses. In agreement with the proteomic results, Ca-enriched surfaces showed a significant initial inflammation that disappeared once the calcium was released. The distinct protein adsorption\/desorption dynamics found in this work demonstrated to be useful to explain the differential biological responses between the titanium and Ca-ion modified implant surfaces.<\/p>\n<\/div>\n<p><strong class=\"sub-title\">Keywords:\u00a0<\/strong>Bioinorganic chemistry; Blood clotting; Dental implants; Osseointegration; Proteomics.<\/p>\n<\/div>\n<p id=\"copyright\" class=\"copyright\"><em>\u00a9 2021. The Author(s).<\/em><\/p>\n<\/div>\n<\/div>\n<p>[\/vc_column_text][vc_empty_space][vc_column_text]<\/p>\n<h3>Figures<\/h3>\n<p>[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row content_placement=&#8221;middle&#8221; content_text_aligment=&#8221;center&#8221;][vc_column]<div class=\"qodef-image-gallery qodef-grid-list qodef-disable-bottom-space  qodef-ig-grid-type qodef-four-columns qodef-tiny-space  qodef-image-behavior-lightbox\">\n\t<div class=\"qodef-ig-inner qodef-outer-space\">\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig1_HTML.jpeg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-256]\" title=\"&lt;strong&gt;Figure 01&lt;\/strong&gt; SEM micrographs of the surfaces: a control, b Ca and c Ca-released. Magnifications: a\u2013c \u00d7\u20091000 and a\u2032\u2013c\u2032 \u00d7\u20095000. EDX chemical analysis of a\u2033 control, b\u2033 Ca and c\u2033 Ca-released surfaces\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig1_HTML-200x200.jpeg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig2_HTML.jpeg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-256]\" title=\"&lt;strong&gt;Figure 02&lt;\/strong&gt; Normalised abundance of the differential proteins related to functions in a blood coagulation and b immune system after 2 min, 180 min and 960 min of incubation with human serum. Results are shown as mean\u2009\u00b1\u2009SE. The asterisks [p\u2009\u2264\u20090.05 (*), p\u2009\u2264\u20090.01 (**) and p\u2009\u2264\u20090.001 (***)] indicate statistically significant differences in the adsorption of the protein between Control and Ca surfaces. Red stars (Ca) and grey diamonds (control) show statistical differences in protein adsorption between consecutive times of testing\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig2_HTML-200x200.jpeg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig3_HTML.jpeg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-256]\" title=\"&lt;strong&gt;Figure 03&lt;\/strong&gt; PANTHER diagrams showing biological processes and pathways associated with the proteins more abundant on Ca, relative to Control samples, versus contact time with human serum (T1\u2009=\u20092 min, T2\u2009=\u2009180 min and T3\u2009=\u2009960 min)\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig3_HTML-200x200.jpeg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig4_HTML.jpeg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-256]\" title=\"&lt;strong&gt;Figure 04&lt;\/strong&gt; a, b Implant\u2013blood contact and a\u2032, b\u2032 blood coagulation after 20 min of incubation in blood for a control and b Ca surfaces\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig4_HTML-200x200.jpeg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig5_HTML.jpeg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-256]\" title=\"&lt;strong&gt;Figure 05&lt;\/strong&gt; a Cell adhesion after 60 min and 90 min of culture and b cell viability after 72 h of incubation. c Procollagen type 1 and d osteocalcin synthesis at 7 days of assay. Results were calculated in percentage in relation to the Control and are represented as mean\u2009\u00b1\u2009SE. The asterisks [p\u2009\u2264\u20090.05 (*), p\u2009\u2264\u20090.01 (**)] indicate statistically significant differences\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig5_HTML-200x200.jpeg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig6_HTML.jpeg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-256]\" title=\"&lt;strong&gt;Figure 06&lt;\/strong&gt; a TGF-\u03b2 and b TNF-\u03b1 cytokine liberation in THP-1 cells after 1 and 3 days of culture. Results were calculated in percentage in relation to the Control and are represented as mean\u2009\u00b1\u2009SE. The asterisks [p\u2009\u2264\u20090.05 (*), p\u2009\u2264\u20090.001 (***)] indicate statistically significant differences\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig6_HTML-200x200.jpeg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig7_HTML.jpeg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-256]\" title=\"&lt;strong&gt;Figure 07&lt;\/strong&gt; Schematic description of the changes in the first layer of proteins attached to the sample surface due to an alteration in the calcium content of the material. The release of Ca ions can lead to changes in the affinity of the proteins that are being adhered to the surface. These proteins could stop its diffusion towards the material, due to its affinity for the Ca2+ released in the serum. This phenomenon could promote desorption processes, reducing the presence of Ca-related proteins in the protein layer formed on the biomaterial over time\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/775_2021_1886_Fig7_HTML-200x200.jpeg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n<\/div>[vc_empty_space height=&#8221;50px&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<a itemprop=\"url\" href=\"\/wp-content\/uploads\/2021\/08\/775_2021_Article_1886.pdf\" target=\"_blank\"  class=\"qodef-btn qodef-btn-medium qodef-btn-solid btnWebRosa2\"  >\n    <span class=\"qodef-btn-text\">Scarica articolo<\/span>\n    <\/a>[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p><strong>J Biol Inorg Chem. 2021 Sep;26(6):715-726.<\/strong> Calcium ions are used in the development of biomaterials for the promotion of coagulation, bone regeneration, and implant osseointegration. Upon implantation, the time-dependent release of calcium ions from titanium implant surfaces modifies the physicochemical characteristics at the implant-tissue interface and thus, the biological responses<\/p>\n","protected":false},"author":1,"featured_media":19689,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[153],"tags":[413,414,415,416],"class_list":["post-19693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-implantologia-orale","tag-apnea-it","tag-implantologia-it","tag-medicina-it","tag-salud-it"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/posts\/19693","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/comments?post=19693"}],"version-history":[{"count":2,"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/posts\/19693\/revisions"}],"predecessor-version":[{"id":36355,"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/posts\/19693\/revisions\/36355"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/media\/19689"}],"wp:attachment":[{"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/media?parent=19693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/categories?post=19693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/it\/wp-json\/wp\/v2\/tags?post=19693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}