One-Stop Solution for Life Science Research

Major depressive disorder (MDD) is a mood disorder characterized by prolonged depressed mood and loss of interest or pleasure. Key symptoms include fatigue, sleep disturbances, and feelings of guilt. It is estimated that about 10% of the population will experience MDD at least once in their lifetime. The disorder can be triggered by various factors such as stress, and while several theories have been proposed regarding its pathogenesis--including the monoamine hypothesis, HPA axis dysfunction, neuroinflammation, and BDNF hypothesis--the exact mechanisms remain unclear. Therefore, diverse research efforts are actively underway worldwide to establish more effective early diagnosis and treatment methods.

Alzheimer's disease is characterized by senile plaques and neurofibrillary tangles found in postmortem brains and is a major cause of dementia. The deposition of Amyloid-beta (Aβ) and accumulation of Tau protein are hallmark features, and their roles in the onset and progression of the disease have long been debated. Among various hypotheses, the widely supported amyloid cascade hypothesis posits that the highly toxic Aβ42 species acts on neurons, triggering neurofibrillary tangle formation, leading to neuronal dysfunction and cell death. While genes such as APP and presenilins have been identified as causes of familial Alzheimer's disease, many therapeutic drugs have failed to demonstrate efficacy in clinical trials, prompting re-evaluation of the hypothesis details. Recently, there has been growing attention on the toxicity of intracellular Aβ oligomers; however, their mechanisms remain unclear and further research is needed.
Against this background, anti-Aβ antibodies, ELISA kits, Aβ oligomer and tau-related reagents are widely used in research worldwide, advancing studies aimed at elucidating disease mechanisms and developing effective treatments.

Parkinson's disease is a neurodegenerative disorder characterized by the degeneration and loss of dopaminergic neurons in the substantia nigra of the midbrain, leading to motor symptoms as well as non-motor manifestations. Pathologically, it is known for the abnormal accumulation and aggregation of alpha-synuclein, forming Lewy bodies. While the exact mechanisms underlying disease onset remain unclear, the central hypothesis focuses on the toxic effects of abnormal alpha-synuclein accumulation inducing neuronal cell death. Genetic factors and environmental influences are also believed to contribute, and various pathways are being actively investigated.

Microglia are a type of glial cell responsible for immune functions in the central nervous system. They play a crucial role in maintaining neural function through cytokine release, phagocytosis of foreign substances and dead cells, and synaptic pruning. Traditionally, research has focused on activated microglia involved in inflammatory responses; however, recent studies have revealed that microglia also participate in neural circuit formation during normal brain development by eliminating unnecessary synapses, contributing to the maturation of functional circuits. Dysfunction in this process may underlie neurodevelopmental disorders such as autism spectrum disorder (ASD), and enhancing microglial synaptic phagocytosis is being explored as a potential therapeutic approach. On the other hand, excessive microglial activation is implicated in the onset and progression of neurodegenerative diseases such as Alzheimer's disease and amyotrophic lateral sclerosis (ALS), making microglia a focus in understanding and developing treatments for these conditions.

Fibrosis is a condition characterized by the abnormal proliferation of connective tissue and excessive accumulation of extracellular matrix (ECM) components, such as collagen produced by fibroblasts. It is triggered by factors such as viral infections, autoimmune reactions, and tissue injury. Chronic inflammation leads to excessive ECM deposition, resulting in tissue dysfunction. Fibrosis is observed in diseases such as idiopathic pulmonary fibrosis, liver cirrhosis, chronic kidney disease, and rheumatoid arthritis. Additionally, fibrosis surrounding tumors has been shown to contribute to tumor malignancy through complex interactions with cancer cells.

Cancer (malignant tumor) is characterized by the malignant proliferation of cells caused by genetic abnormalities in normal cells, with features including invasion into surrounding tissues and metastasis to other organs. Cancer cells arise daily even in healthy individuals, but the immune system typically eliminates them. When immune function is compromised, cancer cells can proliferate uncontrollably and progress. In addition to conventional treatments such as surgery and chemotherapy, new approaches like molecular targeted therapies and immunotherapies have been developed. Research on these treatments relies heavily on research reagents such as antibodies and ELISA kits for detecting specific cancer cell proteins, as well as flow cytometry antibodies for analyzing cellular states.

Carbohydrates in food are digested into glucose, which is transported through the bloodstream to provide energy to cells throughout the body. Insulin secreted by the pancreas promotes the uptake of glucose into cells, and excess glucose is stored as glycogen in the liver and muscles.
Diabetes is a condition characterized by high blood glucose levels due to insulin deficiency or impaired insulin function, and its progression can lead to complications such as retinopathy and nephropathy. Gastrointestinal hormones like GLP-1 and GIP regulate insulin secretion and play an important role in blood glucose control.

Lipids are major components of cell membranes and play an indispensable role in maintaining cell structure and function. They also serve as an important energy source alongside carbohydrates and proteins, contributing to energy storage and hormone synthesis in the body.Lipids exist in various forms such as fatty acids, triglycerides, phospholipids, and cholesterol, each fulfilling specific roles within biological systems. However, abnormalities in lipid metabolism are known to increase the risk of lifestyle-related diseases such as obesity, diabetes, atherosclerosis, and fatty liver disease. Therefore, maintaining proper lipid balance is crucial for health.In recent years, research focusing on elucidating the mechanisms of dyslipidemia and developing treatments targeting lipid metabolism has advanced, significantly contributing to the prevention and improvement of lifestyle-related diseases.

The kidneys maintain homeostasis in the body by filtering waste products and salts from the blood and excreting them as urine. However, when kidney function declines, it becomes difficult to regulate the balance of fluids and salts, leading to various health problems. Kidney diseases are often caused by lifestyle-related conditions such as hypertension, diabetes, and obesity, making early detection and treatment essential. In particular, diabetic nephropathy is characterized by the presence of microalbuminuria in its early stages.

The liver is an essential organ responsible for various metabolic functions, including nutrient storage, detoxification of harmful substances, and synthesis of digestive enzymes. Liver diseases are primarily caused by lifestyle-related factors such as hepatitis virus infections, obesity, and diabetes. A major challenge is that early-stage liver disease often presents with few symptoms, leading to delayed diagnosis.
Liver function decline is assessed using biomarkers in the blood, such as ALT, AST, GLDH, ALP, and ammonia nitrogen, which serve as indicators for early detection and treatment intervention. Recently, improvements in the accuracy of these markers and the development of new diagnostic technologies have contributed significantly to the effective management of liver diseases.

Cell therapy is an advanced medical technology that uses cells derived from the patient or donors to treat diseases and restore function. Among these, CAR-T cell therapy, which involves genetically modifying T cells to specifically target cancer cells, has shown remarkable efficacy, especially in refractory hematological malignancies, and has attracted attention as a promising cancer immunotherapy. To ensure the efficacy and safety of cell therapies, utilizing biomarkers to rigorously assess cell quality and function is essential. This not only supports quality control during manufacturing but also plays a crucial role in evaluating patient response and monitoring adverse effects after administration.
Additionally, mesenchymal stem cells (MSCs) are used in regenerative medicine and immune modulation, and exosomes (extracellular vesicles, EVs) secreted by MSCs have garnered attention as mediators of intercellular communication and therapeutic effects. MSC-derived EVs have been reported to possess anti-inflammatory and tissue repair properties, representing a promising cell-free therapeutic approach.