| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Camilio, Ketil A. Wang, Meng-Yu Mauseth, Brynjar Waagene, Stein Kvalheim, Gunnar Rekdal, Øystein Sveinbjørnsson, Baldur Mælandsmo, Gunhild M. |
| Abstract | Background Immunochemotherapy, the combined use of immunotherapy and chemotherapy, has demonstrated great promise in several cancers. LTX-315 is an oncolytic peptide with potent immunomodulatory properties designed for the local treatment of solid tumors. By inducing rapid immunogenic cell death through the release of danger-associated molecular pattern molecules (DAMPs), LTX-315 is capable of reshaping the tumor microenvironment, turning “cold” tumors “hot” through a significant increase in tumor-infiltrating lymphocytes. Methods We investigated the potential of LTX-315 to be used in combination with standard-of-care chemotherapy (doxorubicin, brand name CAELYX®) against triple-negative breast cancer in an orthotopic 4 T1 mammary fat pad model. Tumor growth curves were compared using one-way ANOVA analysis of variance and Tukey’s multiple comparisons test, and animal survival curves were compared using the log-rank (Mantel-Cox) test. We considered p values ≤0.05 to indicate statistical significance. Results We found that LTX-315 displayed a strong additive antitumoral effect when used in combination with CAELYX®, and induced immune-mediated changes in the tumor microenvironment, followed by complete regression in the majority of animals treated. Furthermore, imaging techniques and histological examination showed that the combination induced strong local necrosis, followed by an increase in the infiltration of CD4+ and CD8+ immune cells into the tumor parenchymal tissue. Conclusions Our data demonstrate that LTX-315 is a promising combination partner with CAELYX® for the treatment of triple-negative breast cancer. |
| Related Links | https://breast-cancer-research.biomedcentral.com/counter/pdf/10.1186/s13058-018-1092-x.pdf |
| Ending Page | 12 |
| Page Count | 12 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1186/s13058-018-1092-x |
| Journal | Breast Cancer Research |
| Issue Number | 1 |
| Volume Number | 21 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2019-01-22 |
| Access Restriction | Open |
| Subject Keyword | Cancer Research Oncology Surgical Oncology Triple-negative breast cancer Immunochemotherapy Combination therapy Immunotherapy Oncolytic peptide LTX-315 Doxorubicin DAMPs ICD |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
| Journal Impact Factor | 6.1/2023 |
| 5-Year Journal Impact Factor | 7.1/2023 |
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