PMID- 33908712 OWN - NLM STAT- MEDLINE DCOM- 20211022 LR - 20211022 IS - 2005-0399 (Electronic) IS - 2005-0380 (Print) IS - 2005-0380 (Linking) VI - 32 IP - 4 DP - 2021 Jul TI - Autologous cervical tumor lysate pulsed dendritic cell stimulation followed by cisplatin treatment abrogates FOXP3+ cells in vitro. PG - e59 LID - 10.3802/jgo.2021.32.e59 [doi] LID - e59 AB - OBJECTIVE: Dendritic cells (DCs) are administered as immunotherapeutic adjuvants after the completion of standard treatment in most settings. However, our Phase I trial indicated that one patient out of four, who received autologous tumor lysate-pulsed dendritic cell (TLDC) also received cisplatin chemotherapy and experienced complete regression of her lung lesion, continuing to be disease free till date. Hence, the objective of our current study is to evaluate the sustenance or augmentation of immune responses when autologous human papillomavirus positive cervical tumor lysate pulsed DC- are combined with cisplatin, using co-culture assays in vitro. METHODS: Before treatment, peripheral blood and punch biopsy samples were collected from 23 cervical cancer patients after obtaining an informed consent. DC functionality was confirmed through phenotypic and functional assays using autologous peripheral blood mononuclear cells as responders. For cisplatin experiments, the drug was added at 150, 200 (clinical dose equivalent), and 400 muM concentrations to DCs alone or DC-T cell co-cultures. Phenotypic assessment and functional characterization of DCs was done using flow cytometry. Cytokine enzyme-linked immunosorbent assay and interferon (IFN)-gamma enzyme-linked immune absorbent spot assays were also performed. RESULTS: The functionality of TLDCs was not compromised upon cisplatin treatment in vitro even at the highest (400 muM) concentration. Even though cisplatin treatment reduced the secretion of IFN-gamma and interleukin (IL)-12p40 in co-cultures stimulated with TLDCs, this effect was not significant (p>0.05). A doubling of IFN-gamma secretion following cisplatin treatment was observed in at least one of three independent experiments. Additional experiments showed a reduction in both FOXP3+ regulatory T cells and IL-10 levels. CONCLUSION: Our results provide evidence that cisplatin treatment may be given after autologous TLDC administration to maintain or improve a productive anti-tumor response in vaccinated patients. CI - Copyright (c) 2021. Asian Society of Gynecologic Oncology, Korean Society of Gynecologic Oncology, and Japan Society of Gynecologic Oncology. FAU - Dhandapani, Hemavathi AU - Dhandapani H AUID- ORCID: 0000-0002-8103-408X AD - Department of Molecular Oncology, Cancer Institute (WIA), Dr. Krishnamurthy Campus, Chennai 600036, India. FAU - Seetharaman, Abirami AU - Seetharaman A AUID- ORCID: 0000-0002-2981-1726 AD - Department of Molecular Oncology, Cancer Institute (WIA), Dr. Krishnamurthy Campus, Chennai 600036, India. FAU - Jayakumar, Hascitha AU - Jayakumar H AUID- ORCID: 0000-0002-5075-1318 AD - Department of Molecular Oncology, Cancer Institute (WIA), Dr. Krishnamurthy Campus, Chennai 600036, India. FAU - Ganeshrajah, Selvaluxmy AU - Ganeshrajah S AUID- ORCID: 0000-0002-3722-2331 AD - Department of Radiation Oncology, Cancer Institute (WIA), Dr. Krishnamurthy Campus, Chennai 600036, India. FAU - Singh, Shirley Sunder AU - Singh SS AUID- ORCID: 0000-0001-9625-7107 AD - Department of Oncopathology, Cancer Institute (WIA), Dr. Krishnamurthy Campus, Chennai 600036, India. FAU - Thangarajan, Rajkumar AU - Thangarajan R AUID- ORCID: 0000-0003-0283-5346 AD - Department of Molecular Oncology, Cancer Institute (WIA), Dr. Krishnamurthy Campus, Chennai 600036, India. FAU - Ramanathan, Priya AU - Ramanathan P AUID- ORCID: 0000-0001-8722-3204 AD - Department of Molecular Oncology, Cancer Institute (WIA), Dr. Krishnamurthy Campus, Chennai 600036, India. priya.serkin@gmail.com. LA - eng PT - Clinical Trial, Phase I PT - Journal Article DEP - 20210406 PL - Korea (South) TA - J Gynecol Oncol JT - Journal of gynecologic oncology JID - 101483150 RN - 0 (FOXP3 protein, human) RN - 0 (Forkhead Transcription Factors) RN - 0 (Pharmaceutical Preparations) RN - 82115-62-6 (Interferon-gamma) RN - Q20Q21Q62J (Cisplatin) SB - IM MH - Cisplatin MH - Dendritic Cells MH - Female MH - Forkhead Transcription Factors MH - Humans MH - Interferon-gamma MH - Leukocytes, Mononuclear MH - *Pharmaceutical Preparations MH - *Uterine Cervical Neoplasms/therapy PMC - PMC8192235 OTO - NOTNLM OT - Cervical Cancer OT - Chemotherapy, Adjuvant OT - Cisplatin OT - Dendritic Cells OT - Interferon-gamma OT - Th1 Cells COIS- No potential conflict of interest relevant to this article was reported. EDAT- 2021/04/29 06:00 MHDA- 2023/02/25 06:00 PMCR- 2021/07/01 CRDT- 2021/04/28 09:03 PHST- 2020/10/16 00:00 [received] PHST- 2021/02/08 00:00 [revised] PHST- 2021/03/13 00:00 [accepted] PHST- 2021/04/29 06:00 [pubmed] PHST- 2023/02/25 06:00 [medline] PHST- 2021/04/28 09:03 [entrez] PHST- 2021/07/01 00:00 [pmc-release] AID - 32.e59 [pii] AID - 10.3802/jgo.2021.32.e59 [doi] PST - ppublish SO - J Gynecol Oncol. 2021 Jul;32(4):e59. doi: 10.3802/jgo.2021.32.e59. Epub 2021 Apr 6.