Esther Chong

Esther Chong

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 January 2021 in Cancer Medicine
Verified
Journal Article
Open access
PDF file
JMJustin Moyers
Justin Moyers
ECEsther Chong
Esther Chong
JPJiahao Peng
Jiahao Peng
HTHsin Hsiang Clarence Tsai
Hsin Hsiang Clarence Tsai
DSDaniel Sufficool
Daniel Sufficool
GNGayathri Nagaraj
Gayathri Nagaraj
Introduction: Immunotherapy (IT) and radiotherapy (RT) have improved overall survival in patients with melanoma with brain metastasis (MBM). We examined the real‐world survival impact of IT and RT combination and timing strategies.Materials and Methods: From the facility‐based National Cancer Database (NCDB) data set, 3008 cases of MBM were identified between 2011 and 2015. Six treatment cohorts were identified: stereotactic radiosurgery (SRS) + IT, SRS alone, whole brain radiotherapy (WBRT) + IT, WBRT alone, IT alone, and none. Concurrent therapy was defined as IT given within 28 days before or after RT; nonconcurrent defined as IT administered within 28–90 days of RT. The co‐primary outcomes were propensity score‐adjusted overall survival by treatment regimen and overall survival by RT and IT timing.Results: Median overall survival (mOS) was performed for each treatment category; SRS +IT 15.77 m; (95%CI 12.13–21.29), SRS alone (9.33 m; 95%CI: 8.0–11.3), IT alone (7.29 m; 95%CI: 5.35–12.91), WBRT +IT (4.89 m; 95%CI: 3.65–5.92), No RT or IT (3.29 m; 95%CI: 2.96–3.75), and WBRT alone (3.12 m; 95%CI 2.79–3.52). By propensity score matching, mOS for SRS +IT (15.5 m; 95%CI: 11.5–20.2) was greater than SRS alone (10.1 m; 95%CI: 8.4–11.8) (p = 0.010), and median survival for WBRT +IT (4.6 m; 95%CI: 3.4–5.6) was greater than WBRT alone (2.9 m; 95%CI: 2.5–3.5) (p < 0.001). In the SRS +IT group, 24‐month landmark survival was 47% (95%CI; 42–52) for concurrent versus 37% (95%CI; 30–44) for nonconcurrent (p = 0.40).Conclusion: Those who received IT in addition to WBRT and SRS experienced longer survival compared to RT modalities alone, while those receiving concurrent SRS and IT trended toward improved survival versus nonconcurrent therapy.

14 June 2022 in Biomedicines
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Journal Article
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CHChristopher Hino
Christopher Hino
BPBryan Pham
Bryan Pham
DPDaniel Park
Daniel Park
CYChieh Yang
Chieh Yang
MNMichael H.K. Nguyen
Michael H.K. Nguyen
HCHuynh Cao
Huynh Cao
The tumor microenvironment (TME) plays an essential role in the development, proliferation, and survival of leukemic blasts in acute myeloid leukemia (AML). Within the bone marrow and peripheral blood, various phenotypically and functionally altered cells in the TME provide critical signals to suppress the anti-tumor immune response, allowing tumor cells to evade elimination. Thus, unraveling the complex interplay between AML and its microenvironment may have important clinical implications and are essential to directing the development of novel targeted therapies. This review summarizes recent advancements in our understanding of the AML TME and its ramifications on current immunotherapeutic strategies. We further review the role of natural products in modulating the TME to enhance response to immunotherapy.

Verified
Journal Article
Open access
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DCDani Ran Castillo
Dani Ran Castillo
WJWon Jin Jeon
Won Jin Jeon
DPDaniel Park
Daniel Park
BPBryan Pham
Bryan Pham
CYChieh Yang
Chieh Yang
SMSaied Mirshahidi
Saied Mirshahidi
In the past decade, targeted therapies for solid tumors, including non-small cell lung cancer (NSCLC), have advanced significantly, offering tailored treatment options for patients. However, individuals without targetable mutations pose a clinical challenge, as they may not respond to standard treatments like immune-checkpoint inhibitors (ICIs) and novel targeted therapies. While the mechanism of action of ICIs seems promising, the lack of a robust response limits their widespread use. Although the expression levels of programmed death ligand 1 (PD-L1) on tumor cells are used to predict ICI response, identifying new biomarkers, particularly those associated with the tumor microenvironment (TME), is crucial to address this unmet need. Recently, inflammatory cytokines such as interleukin-1 beta (IL-1β) have emerged as a key area of focus and hold significant potential implications for future clinical practice. Combinatorial approaches of IL-1β inhibitors and ICIs may provide a potential therapeutic modality for NSCLC patients without targetable mutations. Recent advancements in our understanding of the intricate relationship between inflammation and oncogenesis, particularly involving the IL-1β/PD-1/PD-L1 pathway, have shed light on their application in lung cancer development and clinical outcomes of patients. Targeting these pathways in cancers like NSCLC holds immense potential to revolutionize cancer treatment, particularly for patients lacking targetable genetic mutations. However, despite these promising prospects, there remain certain aspects of this pathway that require further investigation, particularly regarding treatment resistance. Therefore, the objective of this review is to delve into the role of IL-1β in NSCLC, its participation in inflammatory pathways, and its intricate crosstalk with the PD-1/PD-L1 pathway. Additionally, we aim to explore the potential of IL-1β as a therapeutic target for NSCLC treatment.

1 January 2021 in Rare Tumors
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Journal Article
Open access
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ANAnthony L Nguyen
Anthony L Nguyen
ECEsther Chong
Esther Chong
JLJoanne Lee
Joanne Lee
SMSaied Mirshahidi
Saied Mirshahidi
HMHamid Mirshahidi
Hamid Mirshahidi
Pineoblastoma is a rare, primitive, and malignant tumor arising from the parenchyma of the pineal gland. It typically metastasizes along the cerebral neural axis, with rare extraneural metastasis and even more rare intraosseous extraneural metastasis. A patient with pineoblastoma, initially treated with chemotherapy, presented 10 years after initial diagnosis with multiple osseous metastases including his pelvis, femur, and vertebrae, and is currently undergoing chemotherapy.

1 January 2021 in Rare Tumors
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Journal Article
Open access
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ANAnthony L Nguyen
Anthony L Nguyen
ECEsther Chong
Esther Chong
JLJoanne Lee
Joanne Lee
SMSaied Mirshahidi
Saied Mirshahidi
HMHamid Mirshahidi
Hamid Mirshahidi
Cutaneous metastasis of breast cancer carries a poor prognosis, invokes a poor quality of life, and increases mortality by raising one’s risk of bleeding and infection. Currently, options for treatment are systemic chemotherapy, surgical resection and radiation. These treatments are invasive and can have toxic side effects. A 50-year-old African-American woman with stage IV breast cancer with cutaneous metastasis to the left anterior chest and left supraclavicular area was successfully treated with topical imiquimod. She experienced improvement in appearance and symptoms within several months of starting treatment, resulting in near resolution of her cutaneous metastasis. Imiquimod is currently approved for several cutaneous conditions and has the potential to treat cutaneous metastasis of breast cancer.

Verified
Journal Article
Open access
PDF file
DCDani Ran Castillo
Dani Ran Castillo
DPDaniel Park
Daniel Park
WJWon Jin Jeon
Won Jin Jeon
BJBowon Joung
Bowon Joung
JLJae Lee
Jae Lee
HCHuynh Cao
Huynh Cao
Mantle cell lymphoma (MCL) is a type of non-Hodgkin lymphoma (NHL) characterized by a hallmark translocation of t (11; 14). CD10 negativity has been used to differentiate MCL from other NHL types; however, recently, there has been an increase in the number of reported cases of CD10-positive MCL. This warrants further investigation into this rarer immunophenotype and its clinical significance. BCL6, which is a master transcription factor for the regulation of cell proliferation and key oncogene in B cell lymphomagenesis, has been reported to have co-expression with CD10 in MCL. The clinical significance of this aberrant antigen expression remains unknown. We conducted a systematic review by searching four databases and selected five retrospective analyses and five case series. Two survival analyses were conducted to determine if BCL6 positivity conferred a survival difference: 1. BCL6+ vs. BCL6− MCL. 2. BCL6+/CD10+ vs. BCL6−/CD10+ MCL. Correlation analysis was conducted to determine if BCL6 positivity correlated with the Ki67 proliferation index (PI). Overall survival (OS) rates were performed by the Kaplan–Meier method and log-rank test. Our analyses revealed that BCL6+ MCL had significantly shorter overall survival (median OS: 14 months vs. 43 months; p = 0.01), BCL6+/CD10+ MCL had an inferior outcome vs. BCL6+/CD10− MCL (median OS: 20 months vs. 55 months p = 0.1828), BCL6+ MCL had significantly higher percentages of Ki67% (Ki67% difference: 24.29; p = 0.0094), and BCL6 positivity had a positive correlation with CD10+ status with an odds ratio 5.11 (2.49, 10.46; p = 0.0000286). Our analysis showed that BCL6 expression is correlated with CD10 positivity in MCL, and BCL6 expression demonstrated an inferior overall survival. The higher Ki67 PI in BCL6+ MCL compared to BCL6− MCL further supports the idea that the BCL6+ immunophenotype may have prognostic value in MCL. MCL management should consider incorporating prognostic scoring systems adjusted for BCL6 expression. Targeted therapies against BCL6 may offer potential therapeutic options for managing MCL with aberrant immunophenotypes.