AI Article Synopsis
Article Abstract
Objective: A preclinical study was designed to evaluate the effects of adoptively transferred cytokine-induced killer (CIK) cells on colorectal adenocarcinoma.
Methods: Forty NOG mice bearing HT-29 xenograft tumors were developed and equally divided into 2 groups of treatment and control. The mice in the treatment group received cumulatively 40-60 × 10 CIK cells in four divided doses.
Results: Median tumor doubling times for HT-29 xenograft tumors in the treatment and control groups were found to be 8.98 and 4.32 days; respectively. The treatment resulted in tumor growth delay (TGD) of 52.5 %. CIK cell-induced log cell kill (LCK) was found to be 0.67, which implies reduction of 78.6 % of neoplastic colorectal cells. Median length of survival in the treated mice was significantly longer than controls (57 (41-63) vs 41 (31-57) days, P < 0.001). Mice in the treatment group experienced graft-versus-host disease (GvHD) from median of day 13th after the cell therapy. LCK and TGD significantly increased after emergence of GvHD. After necropsy, tumors of the treatment group contained high levels of human-originated CD3, CD4 and CD8 cells and showed significantly lower mitotic counts (P < 0.001) and residual tumor scores (P = 0.005) than the controls (entirely negative for the mentioned CD markers). Ninety percent of the treated mice were found to be responding.
Conclusions: Adoptive transfer of allogeneic CIK cells may be an efficient antitumoral therapy for colorectal cancer. Allogeneic CIK cell-mediated GvHD may contribute to amplification of graft-versus-tumor effects of the cellular therapy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.intimp.2022.109446 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Coordinated immune networks in leukemia bone marrow microenvironments distinguish response to cellular therapy.
Sci Immunol
January 2025
Irving Institute for Cancer Dynamics, Columbia University, New York, NY 10027, USA.
Understanding how intratumoral immune populations coordinate antitumor responses after therapy can guide treatment prioritization. We systematically analyzed an established immunotherapy, donor lymphocyte infusion (DLI), by assessing 348,905 single-cell transcriptomes from 74 longitudinal bone marrow samples of 25 patients with relapsed leukemia; a subset was evaluated by both protein- and transcriptome-based spatial analysis. In acute myeloid leukemia (AML) DLI responders, we identified clonally expanded CD8 cytotoxic T lymphocytes with in vitro specificity for patient-matched AML.
View Article and Find Full Text PDFInjectable supramolecular hydrogel co-loading abemaciclib/NLG919 for neoadjuvant immunotherapy of triple-negative breast cancer.
Nat Commun
January 2025
State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.
The efficacy of cancer immunotherapy relies on a sufficient amount of functional immune cells. Triple-negative breast cancer lacks enough immune cell infiltration, and adjuvant therapy is necessary to prime anti-tumor immunity. However, the improvement in efficacy is unsatisfactory with concern about inducing systemic immunotoxicity.
View Article and Find Full Text PDFLong-term tumor suppression in cholangiocarcinoma using cytokine-induced killer cell therapy and high-dose vitamin C: a case report.
Korean J Clin Oncol
December 2024
Department of Family Medicine, Yeom Chang Hwan Hospital, Seoul, Korea.
This case study explores the effectiveness of autologous cytokine-induced killer (CIK) cell-based immunotherapy in a 49-year-old male patient with inoperable stage IIIb cholangiocarcinoma, characterized by high levels of the sodium-dependent vitamin C transporter-2 (SVCT2) in immune cells. Despite an initial lack of tumor reduction following chemotherapy, the patient showed a significant decrease in tumor markers and stabilization of the tumor after undergoing radiation and proton therapy. Subsequently, CIK cell therapy, combined with high-dose vitamin C, was administered 52 times over 6 years.
View Article and Find Full Text PDFElephant in the room: natural killer cells don't forget HIV either.
Curr Opin HIV AIDS
December 2024
Division of Innate and Comparative Immunology, Center for Human Systems Immunology, Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA.
Purpose Of Review: Like elephants (and T cells), accumulating evidence suggest natural killer (NK) cells never forget. The description of adaptive or memory NK cells, which can be induced by HIV/SIV infections and vaccines and associated with protective effects in persons with HIV (PWH), has dramatically increased the interest in leveraging NK cells to prevent HIV infection or suppress HIV reservoirs. However, harnessing their full antiviral potential has been hindered by an incomplete understanding of mechanisms underlying adaptive NK cell development and infected cell recognition.
View Article and Find Full Text PDFThe novel CD16A/anti-CD3 bifunctional protein, eCD16A/anti-CD3-BFP, redirects T cell cytotoxicity toward antibody-bound target cells.
Hum Vaccin Immunother
December 2025
Department of Research and Development, ManySmart Therapeutics, Taipei, Taiwan.
Monoclonal antibodies enhance innate immunity, while bispecific T cell engager antibodies redirect adaptive T cell immunity. To stimulate both innate and adaptive mechanisms, we created a bifunctional eCD16A/anti-CD3-BFP adapter protein for combined use with clinically approved monoclonal IgG1 antibodies. The adaptor protein contains the extracellular domain of the human CD16A high-affinity variant, which binds the Fc domain of IgG1 antibodies, and an anti-human CD3 single-chain variable fragment that redirects T cell cytotoxicity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!