Despite the large number of cancer chemotherapeutics, cancer treatment is still not very satisfactory. Immune checkpoint inhibition has emerged as a new ray of hope in the immunotherapy approach for cancer treatment. Immune checkpoint inhibitors are molecules located on the surface of immune cells that regulate unnecessary immune responses and keep autoimmune reactions in check. Immune checkpoint inhibitors (ICIs), such as anti-programmed cell death protein-1 and anti-programmed cell death ligand-1, have been employed to activate receptors on immune cells like T-cells, which can deactivate the immune checkpoint and thus reactivate them against cancer cells. However, ICI therapy has limitations, including resistance development in patients, its suitability for all patients, multiple organ disorders, and hyper-progression. Therefore, understanding the chemical structures of small molecule ICIs may aid in designing and developing novel ICIs with improved efficacy and efficiency for cancer chemotherapy. This review’s novelty lies in its summary of the U.S. Food and Drug Administration-approved drugs, repurposed drugs, candidate drugs used alone or in combination with monoclonal antibodies, and novel potential lead molecules under preclinical investigation, which may be useful for designing new chemical entities as ICIs. The review describes 10 different drugs approved by the U.S. Food and Drug Administration that have demonstrated immune checkpoint inhibition targeting the programmed cell death ligand-1/programmed cell death protein-1 signaling, CTLA-4/CD28, TIGIT/PVR, and CD47/SIRPα pathways, as well as three repurposed drugs, 11 candidate drugs, and nine drugs in combination with monoclonal antibodies that are in various phases of clinical trials.

High-mobility group box-1 (HMGB1) is an architectural chromosomal protein with various roles depending on its cellular localization. Extracellular HMGB1 functions as a prototypical damage-associated molecular pattern that triggers inflammation and adaptive immune responses, mediated by specific cell surface receptors, including receptors for advanced glycation end products and toll-like receptors. Post-translational modifications of HMGB1 significantly impact various cellular processes that contribute to the pathogenesis of liver diseases. Recent studies have highlighted the close relationship between HMGB1 and the pathogenesis of acute liver injuries, including acetaminophen-induced liver injury, hepatic ischemia-reperfusion injury, and acute liver failure. In chronic liver diseases, HMGB1 plays a role in nonalcoholic fatty liver disease, alcohol-associated liver disease, liver fibrosis, and hepatocellular carcinoma. Targeting HMGB1 as a therapeutic approach, either by inhibiting its release or blocking its extracellular function, is a promising strategy for treating liver diseases. This review aimed to summarize the available evidence on HMGB1’s role in liver disease, focusing on its multifaceted signaling pathways, impact on disease progression, and the translation of these findings into clinical interventions.

Type 2 diabetes mellitus (T2DM) is a prevalent yet complex metabolic disorder that has shown a rising incidence over the past few decades. Recent research has identified flavonoids as compounds capable of both preventing and managing T2DM through various mechanisms. These mechanisms include enhancing insulin sensitivity, stimulating insulin secretion, modulating intestinal microbiota, inhibiting glucose absorption, and reducing gluconeogenesis. Moreover, numerous studies have suggested that flavonoids may influence gut hormones. Therefore, we propose that flavonoids could serve as effective therapeutic agents for T2DM by modulating intestinal hormone levels. This review aimed to elucidate the potential pathways through which flavonoids may impact T2DM, with a particular emphasis on their role in regulating the enteroendocrine system.

Hyperuricemia (HU), characterized by elevated uric acid (UA) levels in the blood, is a global health concern associated with various conditions, including cardiovascular diseases, gout, hypertension, metabolic syndrome, renal dysfunction, and neurodegenerative diseases. Recent studies highlight the multifaceted origins of HU, implicating genetic predisposition, dietary patterns, lifestyle choices, and environmental influences. Genetic variations affecting enzymes and transporters involved in purine metabolism and UA excretion have been identified, paving the way for personalized treatment strategies. Advances in diagnostic imaging and omics technologies provide enhanced precision in detecting and evaluating risks. While pharmacological interventions remain central to managing HU, persistent challenges such as treatment resistance necessitate the exploration of novel drug targets and lifestyle modifications. Chinese herbal medicines present a potential alternative with fewer side effects. Emerging research on the impact of gut microbiota on UA metabolism opens new therapeutic avenues. Despite progress, challenges such as optimizing treatment duration and understanding long-term effects remain. Collaborative efforts are essential to address these challenges and advance our comprehension of HU. Integrating precision medicine and holistic patient care approaches holds promise for improving outcomes and enhancing the quality of life for individuals with HU. This review provided a contemporary analysis of HU, covering its causes, associated health risks, diagnosis, treatment, and future outlook.

Hematological malignancies present a complex challenge within oncology, necessitating a thorough understanding of genetic factors for effective detection and management. As we delved into the forefront of cancer research, our focus turned to the emerging field of N6-methyladenosine (m6A) epigenetic approaches. Among RNA modifications, m6A is the most common and thoroughly investigated post-transcriptional alteration in messenger RNA. The m6A modification involves the addition of a methyl group to the adenosine at the N6 position within RNA molecules, a process mediated by proteins collectively referred to as m6A writers, erasers, and readers. The dynamic nature of m6A modifications on RNA molecules presents a promising avenue for enhancing our understanding of gene expression regulation in hematological malignancies. This review explores the potential breakthroughs that m6A epigenetic tools offer in cancer diagnostics and treatment, highlighting their role in enabling more precise interventions. By acknowledging the importance of genetic insights and integrating advancements in m6A epigenetics, this article advocates for a comprehensive approach to managing hematological malignancies.

Pancreatic ductal adenocarcinoma (PDAC) is an aggressive disease with difficulties in early diagnosis, poor prognosis, and limited effective therapies. Early detection and effective treatment offer the optimal chance to improve survival rates. Various studies have shown that gut microbiota dysbiosis is closely related to PDAC, with potential mechanism involving immune regulation, metabolic process impact, and reshaping the tumor microenvironment. A comprehensive understanding of the microbiota in PDAC might lead to the establishment of screening or early-stage diagnosis methods, implementation of cancer bacteriotherapy such as fecal microbiota transplantation, creating new opportunities and fostering hope for desperate PDAC patients.

Drug-induced hepatotoxicity is a significant clinical issue worldwide. Given the limited treatment options for these liver injuries, understanding the mechanisms and modes of cell death is crucial for identifying novel therapeutic targets. For the past 60 years, reactive oxygen species and iron-dependent lipid peroxidation (LPO) have been hypothesized to be involved in many models of acute drug-induced liver injury. However, this mechanism of toxicity was largely abandoned when apoptosis became the primary focus of cell death research. More recently, ferroptosis—a novel, non-apoptotic form of cell death—was identified in NRAS-mutant HT-1080 fibrosarcoma cells exposed to erastin and other NRLs. Ferroptosis is characterized by glutathione depletion and the impairment of glutathione peroxidase 4 activity, which hinders the detoxification of lipid hydroperoxides. These hydroperoxides then serve as substrates for iron-dependent LPO propagation. This cell death mechanism is now receiving widespread attention, extending well beyond its original identification in cancer research, including in the field of drug-induced liver injury. However, concerns arise when such mechanisms are applied across different cell types and disease states without sufficient validation. This review critically evaluated the historical evidence for iron-dependent LPO as a mechanism of drug-induced hepatotoxicity and explored how these earlier findings have led to the current concept of ferroptosis. Overall, the published data support the idea that multi-layered endogenous antioxidant defense mechanisms in the liver limit the occurrence of pathophysiologically relevant LPO under normal conditions. Only when these defense mechanisms are severely compromised does ferroptosis become a significant mode of drug-induced cell death.

The incidence of cardia gastric cancer (CGC) is rising worldwide, particularly in East Asia. There has been a debate over whether Helicobacter pylori (H. pylori) constitutes a risk factor for CGC. This study aimed to evaluate the relative risk of H. pylori infection and CGC in Asian countries.

Relevant studies examining H. pylori and CGC were searched in PubMed, Embase, and Web of Science from their inception to June 30, 2024. Either a random-effect model or a fixed-effect model was used to calculate pooled odds ratios (ORs) with 95% confidence intervals (CIs). Sensitivity analyses and assessments of publication bias were performed. The stability of results was evaluated in cases where publication bias was detected.

A total of 24 studies were included in the meta-analysis. A significant association between H. pylori and CGC was observed (OR = 2.20, 95% CI 1.73–2.80). In a subgroup analysis of different countries, a significant association was observed in East Asian countries, including China (OR = 2.12, 95% CI 1.63–2.77), Japan (OR = 2.21, 95% CI 1.16–4.20), and Korea (OR = 2.36, 95% CI 1.58–3.54), but not in Iran (OR = 1.48, 95% CI 0.77–2.84). The pooled OR from five prospective cohort studies revealed a strong association between H. pylori and CGC (OR = 2.32, 95% CI 1.47–3.66).

East Asia bears a significant burden of H. pylori-related CGC. A clear association between H. pylori infection and CGC was observed in this region.

Hepatocellular carcinoma (HCC) is the fourth leading cause of cancer-related death worldwide. Multiple treatment modalities are available for the management of HCC, depending on its stage as determined by the Barcelona Clinic Liver Cancer staging system. Because liver transplantation (LT) theoretically removes the cancer and replaces the organ at risk for future malignancy, LT is often considered the most definitive and one of the most efficacious treatment options for HCC. Nevertheless, the success and efficacy of liver transplantation depend on various tumor characteristics. As a result, multiple criteria have been developed to assess the appropriateness of a case of HCC for LT, with the pioneering Milan Criteria established in 1996. Over the past 20 to 30 years, these criteria have been critically evaluated, expanded, and often liberalized to make LT for patients with HCC a more universally applicable option. Furthermore, the development of other treatment modalities has enabled downstaging and bridging strategies for HCC prior to LT. In this narrative and comprehensive review, we provided an update on recent trends in the epidemiology of HCC, selection criteria for LT, implementation of LT across different regions, treatment modalities available as bridges, downstaging strategies, alternatives to LT, and, finally, post-LT surveillance.

Over the past decade, significant progress has been made in managing acute myeloid leukemia (AML). However, refractory disease and relapse continue to pose major challenges. These issues highlight the need for innovative therapeutic options to achieve deeper remission and effectively treat refractory and relapsed diseases, thereby improving survival rates. Natural killer (NK) cell-based therapies have emerged as a promising option. NK cells, a specialized population of innate lymphoid cells, exhibit inherent anti-viral and anti-cancer capabilities. Unlike T cells, NK cells do not require prior antigen sensitization to eliminate their target cells, enhancing their potential as immunotherapeutic agents. However, NK cells often exhibit dysfunction in patients with hematological malignancies. Revitalizing these cells represent another immunotherapeutic strategy. Various NK cell-based therapies have been explored in recent decades, particularly in managing AML. These therapies include chimeric antigen receptor-NK cell therapy, bispecific and trispecific NK cell engagers (bi-specific killer cell engager (BiKEs) and tri-specific killer cell engager (TriKEs), and cytokine-induced memory-like NK cells. These therapies are also associated with fewer adverse events, such as neurotoxicity. Despite their potential for clinical cancer management, challenges such as the in vivo expansion of NK cells remain unresolved. This review summarizes the biology of NK cells and the diverse NK cell-based therapies being developed for the potential management of AML, as evidenced in preclinical studies and clinical trials.