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Cox regression was utilized to determine the associations between factors and overall survival (OS). Changes in cytokines and immune cell compositions in peripheral blood samples following the combined treatment were investigated, along with their correlations with treatment response.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The mean cycle of cryo-PD-1 combination treatment was 2.2 (range, 1\u20136), and the 3-month overall response rate (RECIST 1.1 criteria) was 26.7%. Of the 21 patients who failed previous PD-1 blockade therapy after diagnosis of liver metastasis, 4 (19.0%) achieved response within 3 months since combination treatment. The diameter of ablated lesion \u2009\u2264\u200930\u00a0mm, metastatic organs \u2009\u2264\u20092, and pre-treatment LDH level \u2009\u2264\u2009300 U\/L were independent prognostic factors for favorable OS. Further analysis showed patients with intrahepatic tumor size of 15\u201345\u00a0mm, and ablated lesion size of \u2009\u2264\u200930\u00a0mm had significantly higher 3-month response rate (42.9% vs 12.5%;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.022) and survival time (30.5 vs 14.2\u00a0months;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.045) than their counterparts. The average increase in NLR among patients with ablated tumor size of \u2009\u2264\u20093\u00a0cm and \u2009&gt;\u20093\u00a0cm were 3.59\u2009\u00b1\u20095.01 and 7.21\u2009\u00b1\u200912.57, respectively. The average increase in serum IL-6 levels among patients with ablated tumor size of \u2009\u2264\u20093\u00a0cm and \u2009&gt;\u20093\u00a0cm were 8.62\u2009\u00b1\u20097.95\u00a0pg\/ml and 15.40\u2009\u00b1\u200911.43\u00a0pg\/ml, respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Size selection of intrahepatic lesions for cryoablation is important in order to achieve abscopal effect and long-term survival among patients with liver metastatic melanoma receiving PD-1 blockade therapy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00262-024-03637-1","type":"journal-article","created":{"date-parts":[[2024,3,2]],"date-time":"2024-03-02T08:01:28Z","timestamp":1709366488000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Size selection of intrahepatic lesions for cryoablation contributes to abscopal effect and long-term survival in patients with liver metastatic melanoma receiving PD-1 blockade therapy"],"prefix":"10.1007","volume":"73","author":[{"given":"Lujun","family":"Shen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongtong","family":"Tan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"Nie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiquan","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gulijiayina","family":"Nuerhashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Han","family":"Qi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fei","family":"Cao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunyong","family":"Wen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuanggang","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianqi","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peng","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dandan","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoshi","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weijun","family":"Fan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,3,2]]},"reference":[{"issue":"1","key":"3637_CR1","doi-asserted-by":"publisher","first-page":"5","DOI":"10.1158\/1078-0432.CCR-21-1193","volume":"28","author":"JC Lee","year":"2022","unstructured":"Lee JC, Green MD, Huppert LA, Chow C, Pierce RH, Daud AI (2022) The liver-immunity nexus and cancer immunotherapy. 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