Dataset Information

A multifunctional PEGylated liposomal-encapsulated sunitinib enhancing autophagy, immunomodulation, and safety in renal cell carcinoma.

ABSTRACT:

Background

Sunitinib is a multikinase inhibitor used to treat patients with advanced renal cell carcinoma (RCC). However, sunitinib toxicity makes it a double-edged sword. Potent immune modulation by sunitinib extends to nuclear interactions. To address these issues, there is an urgent need for delivery vectors suitable for sunitinib treatment.

Methods

We developed PEGylated liposomes as delivery vectors to precisely target sunitinib (lipo-sunitinib) to RCC tumors. Further investigations, including RNA sequencing (RNA-seq), were performed to evaluate transcriptomic changes in these pathways. DiI/DiR-labeled lipo-sunitinib was used for the biodistribution analysis. Flow cytometry and immunofluorescence (IF) were used to examine immune modulation in orthotopic RCC models.

Results

The evaluation of results indicated that lipo-sunitinib precisely targeted the tumor site to induce autophagy and was readily taken up by RCC tumor cells. In addition, transcriptomic assays revealed that following lipo-sunitinib treatment, autophagy, antigen presentation, cytokine, and chemokine production pathways were upregulated, whereas the epithelial-mesenchymal transition (EMT) pathway was downregulated. In vivo data provided evidence supporting the inhibitory effect of lipo-sunitinib on RCC tumor progression and metastasis. Flow cytometry further demonstrated that liposunitinib increased the infiltration of effector T cells (Teffs) and conventional type 1 dendritic cells (cDC1s) into the tumor. Furthermore, systemic immune organs such as the tumor-draining lymph nodes, spleen, and bone marrow exhibited upregulated anticancer immunity following lipo-sunitinib treatment.

Conclusion

Our findings demonstrated that lipo-sunitinib is distributed at the RCC tumor site, concurrently inducing potent autophagy, elevating antigen presentation, activating cytokine and chemokine production pathways, and downregulating EMT in RCC cells. This comprehensive approach significantly enhanced tumor inhibition and promoted anticancer immune modulation.

SUBMITTER: Yueh PF

PROVIDER: S-EPMC11293195 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature

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Publications

A multifunctional PEGylated liposomal-encapsulated sunitinib enhancing autophagy, immunomodulation, and safety in renal cell carcinoma.

Yueh Po-Fu PF Chiang Chih-Sheng CS Tsai I-Jung IJ Tseng Yun-Long YL Chen He-Ru HR Lan Keng-Li KL Hsu Fei-Ting FT

Journal of nanobiotechnology 20240731 1

<h4>Background</h4>Sunitinib is a multikinase inhibitor used to treat patients with advanced renal cell carcinoma (RCC). However, sunitinib toxicity makes it a double-edged sword. Potent immune modulation by sunitinib extends to nuclear interactions. To address these issues, there is an urgent need for delivery vectors suitable for sunitinib treatment.<h4>Methods</h4>We developed PEGylated liposomes as delivery vectors to precisely target sunitinib (lipo-sunitinib) to RCC tumors. Further investi ...[more]

PMID: 39085911

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Project description:BackgroundMetastatic renal cell carcinoma (mRCC) patients receiving first-line sunitinib typically survive >2 yr, with chronic treatment sometimes extending to ≥6 yr.ObjectiveTo analyze long-term safety with sunitinib in mRCC patients.Design, setting, and participantsData were pooled from 5739 patients in nine trials, comprising seven phase II studies, a phase III study, and an expanded-access trial in various treatment settings (e.g., cytokine refractory or treatment-naïve).Outcome measurements and statistical analysisInterval and cumulative time-period analyses evaluated the incidence of treatment-related adverse events (TRAEs) for up to 6 yr, in the overall population and in those with long-term (≥2 yr) sunitinib treatment.Results and limitationsAmong long-term patients (n=807), most TRAEs occurred initially in the first year and then decreased in frequency; TRAEs following this pattern included decreased appetite, diarrhea, dysgeusia, dyspepsia, fatigue, hypertension, mucosal inflammation, nausea, and stomatitis. However, hypothyroidism increased by interval analysis from 6% at 0-<6 mo to 42% at 5-<6 yr and by cumulative analysis from 14% at 0-<1 yr to 36% over 6 yr. Grade 3/4 TRAEs in long-term patients peaked during the first year and then steadily decreased. The overall population displayed only minor differences from long-term patients, with no clinically significant differences between grade ≥3 TRAE profiles (<5% difference in incidence rates at all intervals). Limitations included retrospective design, assessment variability, lack of pharmacokinetic data, and absence of baseline characteristics for long-term patients.ConclusionsProlonged sunitinib was not associated with new types or increased severity of TRAEs. Except hypothyroidism, toxicity was not cumulative.Patient summaryMore than 800 mRCC patients received sunitinib for between 2 and 6 yr without experiencing new or more severe treatment-related toxicity. Clinicians may be able to prescribe chronic sunitinib treatment for as long as patients continue to derive clinical benefit, without untoward additional risk.

Project description:ImportanceThere are substantial unmet therapeutic needs in patients with platinum-resistant recurrent ovarian cancer (PROC), and novel therapeutic strategies should be explored.ObjectiveTo evaluate the efficacy and safety of treatment with apatinib (a vascular endothelial growth factor receptor 2 tyrosine kinase inhibitor) plus pegylated liposomal doxorubicin (PLD) for PROC.Design, setting, and participantsThe APPROVE trial was performed as an open-label, randomized clinical trial at 11 hospitals in China between March 22, 2018, and November 16, 2020. Patients with histologically confirmed ovarian cancer who had experienced disease progression during or within 6 months of discontinuing any prior line of treatment with platinum-based chemotherapy were eligible. This primary analysis was based on data that were current as of January 28, 2021.InterventionsPatients received PLD alone (40 mg/m2, intravenously, every 4 weeks, for up to 6 cycles) or PLD plus apatinib (250 mg, orally, daily).Main outcomes and measuresThe primary end point was progression-free survival (PFS) by Response Evaluation Criteria in Solid Tumours (RECIST), version 1.1, in the intent-to-treat population.ResultsIn total, 152 female patients were randomized, with 78 (51.3%) in the apatinib plus PLD group (median age, 54 years; range, 22-76 years) and 74 (48.7%) in the PLD group (median age, 56 years; range, 33-72 years). The median follow-up duration was 8.7 months (IQR, 4.7-14.1 months). The median PFS was 5.8 months (95% CI, 3.8-8.8) for treatment with apatinib plus PLD vs 3.3 months (95% CI, 2.1-3.8) for PLD (hazard ratio, 0.44; 95% CI, 0.28-0.71; P < .001). The median overall survival was 23.0 months (95% CI, 18.9 to not reached) with treatment with apatinib plus PLD vs 14.4 months (95% CI, 12.1-23.4) with PLD (hazard ratio, 0.66; 95% CI, 0.40-1.09). The most frequent grade 3 or higher treatment-emergent adverse events were decreased neutrophil counts (11 [14.9%] in the apatinib plus PLD group vs 6 [8.3%] in the PLD group), hypertension (6 [8.1%] vs none), and decreased white blood cell count (5 [6.8%] vs 3 [4.2%]). Two patients receiving treatment with apatinib plus PLD experienced grade 2 fistulas.Conclusions and relevanceThis randomized clinical trial found that treatment with apatinib plus PLD showed promising efficacy and manageable toxic effects in patients with PROC and may be a new alternative treatment option in this setting.Trial registrationClinicaltrials.gov Identifier: NCT04348032.

Dataset Information

A multifunctional PEGylated liposomal-encapsulated sunitinib enhancing autophagy, immunomodulation, and safety in renal cell carcinoma.

Background

Methods

Results

Conclusion

Publications

A multifunctional PEGylated liposomal-encapsulated sunitinib enhancing autophagy, immunomodulation, and safety in renal cell carcinoma.

Similar Datasets

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