{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T03:42:08Z","timestamp":1790998928430,"version":"4.1.0"},"reference-count":72,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2025,10,23]],"date-time":"2025-10-23T00:00:00Z","timestamp":1761177600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Aim: Photodynamic therapy uses a photosensitizer and light to generate reactive oxygen species that kill tumor cells and can shift inflammatory signaling. Hypericin is a potent photosensitizer, but its immunomodulatory impact in breast cancer needs clarification. We evaluated the phototoxic and cytokine-modulating effects of hypericin-mediated photodynamic therapy in MCF-7 human breast adenocarcinoma cells. This study examines how HYP-PDT affects MCF-7 breast cancer cells by assessing viability and cytokine secretion to guide the development of targeted, immune-enhancing PDT protocols. Methods: MCF-7 cells were incubated with hypericin at 0, 0.125, 0.25, 0.5, or 1 \u03bcM, then exposed to light doses of 0, 1, 2, or 5 J\/cm2. Viability was measured 24 h later by MTT; selected conditions were also assessed by Trypan Blue. Cell supernatants collected after sublethal treatment were analyzed for IL-6, IL-8, IL-10, and TNF-\u03b1 using a multiplex immunoassay. Experiments were repeated four times. Statistical analyses followed the study\u2019s plan for group comparisons. Results: At 1 J\/cm2, MTT values did not differ from matched dark controls across hypericin concentrations. At 2 and 5 J\/cm2, some conditions showed increased MTT signal relative to controls, indicating higher metabolic activity; Trypan Blue performed at 0 J\/cm2 showed a concentration-dependent reduction in viability with hypericin. Hypericin-PDT decreased IL-6 and IL-8 concentrations and increased TNF-\u03b1 in MCF-7 supernatants. No statistically significant changes were detected for IL-10. Conclusions: Hypericin-PDT altered inflammatory readouts in MCF-7 cells, with reductions in IL-6 and IL-8 and an increase in TNF-\u03b1, consistent with a pro-inflammatory shift. Viability results suggest condition-dependent changes in metabolic activity or survival effects that warrant confirmation with matched cell counts across all light doses. These findings support further standardized dosimetry and multi-line validation of hypericin-PDT in breast cancer models.<\/jats:p>","DOI":"10.3390\/jcm14217514","type":"journal-article","created":{"date-parts":[[2025,10,24]],"date-time":"2025-10-24T02:34:45Z","timestamp":1761273285000},"page":"7514","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Hypericin Photodynamic Therapy Induces Cytotoxicity and Modulates Cytokine Secretion in MCF-7 Breast Cancer Cells"],"prefix":"10.3390","volume":"14","author":[{"given":"Magdalena","family":"Czarnecka-Czapczy\u0144ska","sequence":"first","affiliation":[{"name":"Doctoral School, Medical University of Silesia, 40-055 Katowice, Poland"},{"name":"Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8216-4495","authenticated-orcid":false,"given":"Zenon","family":"Czuba","sequence":"additional","affiliation":[{"name":"Department of Microbiology and Immunology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2661-6570","authenticated-orcid":false,"given":"David","family":"Aebisher","sequence":"additional","affiliation":[{"name":"Department of Photomedicine and Physical Chemistry, Medical College, Rzesz\u00f3w University, 35-310 Rzesz\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1201-3709","authenticated-orcid":false,"given":"Wiktoria","family":"Mytych","sequence":"additional","affiliation":[{"name":"English Division Science Club, Medical College, Rzesz\u00f3w University, 35-310 Rzesz\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-3173-9389","authenticated-orcid":false,"given":"Jakub","family":"Fiegler-Rudol","sequence":"additional","affiliation":[{"name":"Department of Periodontal and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5673-7413","authenticated-orcid":false,"given":"Rafa\u0142","family":"Wiench","sequence":"additional","affiliation":[{"name":"Department of Periodontal and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1284-3809","authenticated-orcid":false,"given":"Aleksandra","family":"Kawczyk-Krupka","sequence":"additional","affiliation":[{"name":"Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,10,23]]},"reference":[{"key":"ref_1","first-page":"721","article-title":"Breast Cancer: An Overview of Current Therapeutic Strategies, Challenge, and Perspectives","volume":"15","author":"Wang","year":"2023","journal-title":"Breast Cancer"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Mokoena, D.R., George, B.P., and Abrahamse, H. 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