The MDS is a disease of the blood system that is characterized by abnormality in the formation of blood cells in the bone marrow, which may lead to a decrease in the number of red cells, white cells and slabs in external blood. MDS is in the category of malignant blood disease, with a certain risk of being transformed into acute marrow leukaemia (AML), one of the most serious complications for MDS patients.The following is a detailed discussion of the conversion of MDS to leukaemia:MDS and leukaemiaMDS disease progressMDS is a cloned stem cell disease with a natural hemogenic pathology. Some MDS patients may remain stable for long periods of time, while others may progress to more serious blood diseases, including AML. According to statistics, approximately 30 per cent of MDS patients develop into AML in the years following diagnosis.2. Risk factors for transformationGenetic anomalies: Certain specific chromosome anomalies, such as-7/del (7q),-5/del (5q), complex chromosome anomalies, are related to the high risk of MDS conversion to AML.MDS sub-type: According to the World Health Organization classification, MDS is divided into sub-types, with higher risk of MDS (e.g. MDS-RAEB and MDS-RAEB-t) becoming AML.Age: older patients advance at higher risk of AML.Level of blood cell reduction: Severe anaemia, reduction of neutral particles and reduction of slabs may be associated with progress of disease.Mechanisms for transformation1. Genetic instabilityThe genetic instability of the cloned blood stem cells of MDS could lead to further genetic mutation and chromosomal anomalies, which could drive the transformation of the disease to AML.2. Changes in the micro-environment of blood productionChanges in the microblood environment of MDS patients, including cell-factor genocrine anomalies and functional disorders of bone marrow cell cells, may contribute to the expansion of malignant cloning.Declining immune surveillance functionsThe surveillance function of the immune system could be impaired in MDS, which allowed malignant cloning cells to escape immunization surveillance, thus providing an opportunity for progress to AML.How to monitor and prevent transformationRegular follow-up visitsMDS patients are required to conduct regular blood tests and bone marrow assessments to monitor the progress of the disease and the risk of transformation.Bone marrow examinationThe percentage of primitive cells in the bone marrow can be assessed through bone marrow piercing and biopsy, which is a key indicator for predicting the transformation of disease.Genetics testingChromosomal analysis and molecular genetics testing can help to identify high-risk genetic anomalies and thus guide treatment strategies.4. Treatment interventionsSupportive treatment: includes blood transfusions, antibiotics and blood growth factors, among others, which aim to alleviate symptoms and improve quality of life.Treatment of diseases: the use of immuno-regulating agents, demethylated drugs, etc., is intended to slow the progress of the disease and reduce the risk of AML conversion.Blood stem cell transplant: For patients suitable for transplant, blood stem cell transplant is the only possible cure for MDS and also prevents the transition of disease to AML.ConclusionsThere is a real risk of mutilation of osteomytic abnormalities into acute melcoming leukaemia, a process influenced by a number of factors. The risk of conversion can be reduced to some extent through regular monitoring and appropriate treatment interventions. For MDS patients, it is essential to follow a personalized treatment plan in close cooperation with the medical team. As medical research progresses, understanding of the natural history of MDS and the treatment strategy is also deepening, providing patients with more treatment options and hope.
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