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Leowattana W, Leowattana P, Leowattana T. Quantitative hepatitis B core antibody and quantitative hepatitis B surface antigen: Novel viral biomarkers for chronic hepatitis B management. World J Hepatol 2024; 16:550-565. [DOI: 10.4254/wjh.v16.i4.550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/03/2024] [Accepted: 03/12/2024] [Indexed: 04/24/2024] Open
Abstract
The management of hepatitis B virus (HBV) infection now involves regular and appropriate monitoring of viral activity, disease progression, and treatment response. Traditional HBV infection biomarkers are limited in their ability to predict clinical outcomes or therapeutic effectiveness. Quantitation of HBV core antibodies (qAnti-HBc) is a novel non-invasive biomarker that may help with a variety of diagnostic issues. It was shown to correlate strongly with infection stages, hepatic inflammation and fibrosis, chronic infection exacerbations, and the presence of occult infection. Furthermore, qAnti-HBc levels were shown to be predictive of spontaneous or treatment-induced HBeAg and HBsAg seroclearance, relapse after medication termination, re-infection following liver transplantation, and viral reactivation in the presence of immunosuppression. qAnti-HBc, on the other hand, cannot be relied on as a single diagnostic test to address all problems, and its diagnostic and prognostic potential may be greatly increased when paired with qHBsAg. Commercial qAnti-HBc diagnostic kits are currently not widely available. Because many methodologies are only semi-quantitative, comparing data from various studies and defining universal cut-off values remains difficult. This review focuses on the clinical utility of qAnti-HBc and qHBsAg in chronic hepatitis B management.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Srinakharinwirot University, Wattana 10110, Bangkok, Thailand
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Leowattana W, Leowattana P, Leowattana T. Systemic treatment for advanced pancreatic cancer. World J Gastrointest Oncol 2023; 15:1691-1705. [PMID: 37969416 PMCID: PMC10631439 DOI: 10.4251/wjgo.v15.i10.1691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/24/2023] [Accepted: 09/22/2023] [Indexed: 10/10/2023] Open
Abstract
Pancreatic cancer is a deadly disease with an extremely poor 5-year survival rate due to treatment resistance and late-stage detection. Despite numerous years of research and pharmaceutical development, these figures have not changed. Treatment options for advanced pancreatic cancer are still limited. This illness is typically detected at a late stage, making curative surgical resection impossible. Chemotherapy is the most commonly utilized technique for treating advanced pancreatic cancer but has poor efficacy. Targeted therapy and immunotherapy have made significant progress in many other cancer types and have been proven to have extremely promising possibilities; these therapies also hold promise for pancreatic cancer. There is an urgent need for research into targeted treatment, immunotherapy, and cancer vaccines. In this review, we emphasize the foundational findings that have fueled the therapeutic strategy for advanced pancreatic cancer. We also address current advancements in targeted therapy, immunotherapy, and cancer vaccines, all of which continue to improve the clinical outcome of advanced pancreatic cancer. We believe that clinical translation of these novel treatments will improve the low survival rate of this deadly disease.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Srinakharinwirot University, Wattana 10110, Bangkok, Thailand
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Leowattana W, Leowattana P, Leowattana T. Systemic treatments for resectable carcinoma of the esophagus. World J Gastroenterol 2023; 29:4628-4641. [PMID: 37662861 PMCID: PMC10472899 DOI: 10.3748/wjg.v29.i30.4628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/18/2023] [Accepted: 07/28/2023] [Indexed: 08/10/2023] Open
Abstract
One of the most prevalent malignancies in the world is esophageal cancer (EC). The 5-year survival rate of EC remains pitiful despite treatment advancements. Neoadjuvant chemoradiotherapy in conjunction with esophagectomy is the standard of care for patients with resectable disease. The pathological complete response rate, however, is not acceptable. A distant metastasis or a locoregional recurrence will occur in about half of the patients. To increase the clinical effectiveness of therapy, it is consequently vital to investigate cutting-edge and potent therapeutic modalities. The approach to the management of resectable EC using immunotherapy has been considerably altered by immune checkpoint inhibitors. Systemic immunotherapy has recently been shown to have the potential to increase the survival of patients with resectable EC, according to growing clinical data. A combination of chemotherapy, radiation, and immunotherapy may have a synergistic antitumor impact because, according to mounting evidence, these treatments can stimulate the immune system via a number of different pathways. In light of this, it makes sense to consider the value of neoadjuvant immunotherapy for patients with surgically treatable EC. In this review, we clarify the rationale for neoadjuvant immunotherapy in resectable EC patients, recap the clinical outcomes of these approaches, go through the upcoming and ongoing investigations, and emphasize the difficulties and unmet research requirements.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakarinwirot University, Wattana 10110, Bangkok, Thailand
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Abstract
Gastric cancer (GC) is believed to be the fifth most common cancer and the third most common cause of death worldwide. Treatment techniques include radiation, chemotherapy, gastrectomy, and targeted treatments are often employed. Some hopeful results from the development of GC immunotherapy have already changed treatment approaches. Along with previous combination medicines, new immunotherapies have been developed that target distinct molecules. Despite ongoing studies into the current therapeutic options and significant improvements in this field, the prognosis for the ailment is poor. Since there are few treatment options and a delay in detection, the illness actually advances, spreads, and metastasizes. The bulk of immunotherapies in use today rely on cytotoxic immune cells, monoclonal antibodies, and gene-transferred vaccines. Immune checkpoint inhibitors have become more popular. In this review, we sought to examine the viewpoint and development of several immunotherapy treatment modalities for advanced GC, as well as the clinical results thus far reported. Additionally, we outlined tumor immune escape and tumor immunosurveillance.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Wattana 10110, Bangkok, Thailand
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Leowattana W, Leowattana T, Leowattana P. Paradigm shift of chemotherapy and systemic treatment for biliary tract cancer. World J Gastrointest Oncol 2023; 15:959-972. [PMID: 37389105 PMCID: PMC10302992 DOI: 10.4251/wjgo.v15.i6.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/14/2023] [Accepted: 05/05/2023] [Indexed: 06/14/2023] Open
Abstract
Biliary tract cancers (BTC) are frequently identified at late stages and have a poor prognosis due to limited systemic treatment regimens. For more than a decade, the combination of gemcitabine and cis-platin has served as the first-line standard treatment. There are few choices for second-line chemo-therapy. Targeted treatment with fibroblast growth factor receptor 2 inhibitors, neurotrophic tyrosine receptor kinase inhibitors, and isocitrate dehydrogenase 1 inhibitors has had important results. Immune checkpoint inhibitors (ICI) such as pembrolizumab are only used in first-line treatment for microsatellite instability high patients. The TOPAZ-1 trial's outcome is encouraging, and there are several trials underway that might soon put targeted treatment and ICI combos into first-line options. Newer targets and agents for existing goals are being studied, which may represent a paradigm shift in BTC management. Due to a scarcity of targetable mutations and the higher toxicity profile of the current medications, the new category of drugs may occupy a significant role in BTC therapies.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Wattana 10110, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
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Abstract
Pott's spine, commonly known as spinal tuberculosis (TB), is an extrapulmonary form of TB caused by Mycobacterium TB. Pott's paraplegia occurs when the spine is involved. Spinal TB is usually caused by the hematogenous spread of infection from a central focus, which can be in the lungs or another location. Spinal TB is distinguished by intervertebral disc involvement caused by the same segmental arterial supply, which can result in severe morbidity even after years of approved therapy. Neurological impairments and spine deformities are caused by progressive damage to the anterior vertebral body. The clinical, radiographic, microbiological, and histological data are used to make the diagnosis of spinal TB. In Pott's spine, combination multidrug antitubercular therapy is the basis of treatment. The recent appearance of multidrug-resistant/extremely drug-resistant TB and the growth of human immunodeficiency virus infection have presented significant challenges in the battle against TB infection. Patients who come with significant kyphosis or neurological impairments are the only ones who require surgical care. Debridement, fusion stabilization, and correction of spinal deformity are the cornerstones of surgical treatment. Clinical results for the treatment of spinal TB are generally quite good with adequate and prompt care.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakarinwirot University, Wattana 10110, Bangkok, Thailand
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Abstract
Significant progress has been achieved in the treatment of metastatic colorectal cancer (mCRC) patients during the last 20 years. There are currently numerous treatments available for the first-line treatment of mCRC. Sophisticated molecular technologies have been developed to reveal novel prognostic and predictive biomarkers for CRC. The development of next-generation sequencing and whole-exome sequencing, which are strong new tools for the discovery of predictive molecular biomarkers to facilitate the delivery of customized treatment, has resulted in tremendous breakthroughs in DNA sequencing technology in recent years. The appropriate adjuvant treatments for mCRC patients are determined by the tumor stage, presence of high-risk pathologic characteristics, microsatellite instability status, patient age, and performance status. Chemotherapy, targeted therapy, and immunotherapy are the main systemic treatments for patients with mCRC. Despite the fact that these novel treatment choices have increased overall survival for mCRC, survival remains optimal for individuals with non-metastatic disease. The molecular technologies currently being used to support our ability to practice personalized medicine; the practical aspects of applying molecular biomarkers to regular clinical practice; and the evolution of chemotherapy, targeted therapy, and immunotherapy strategies for the treatment of mCRC in the front-line setting are all reviewed here.
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Affiliation(s)
- Wattana Leowattana
- Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Pathomthep Leowattana
- Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
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Leowattana W, Leowattana P, Leowattana T. Systemic treatment for metastatic colorectal cancer. World J Gastroenterol 2023; 29:1425-1444. [DOI: 10.3748/wjg.v29.i10.1425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/10/2023] Open
Abstract
Significant progress has been achieved in the treatment of metastatic colorectal cancer (mCRC) patients during the last 20 years. There are currently numerous treatments available for the first-line treatment of mCRC. Sophisticated molecular technologies have been developed to reveal novel prognostic and predictive biomarkers for CRC. The development of next-generation sequencing and whole-exome sequencing, which are strong new tools for the discovery of predictive molecular biomarkers to facilitate the delivery of customized treatment, has resulted in tremendous breakthroughs in DNA sequencing technology in recent years. The appropriate adjuvant treatments for mCRC patients are determined by the tumor stage, presence of high-risk pathologic characteristics, microsatellite instability status, patient age, and performance status. Chemotherapy, targeted therapy, and immunotherapy are the main systemic treatments for patients with mCRC. Despite the fact that these novel treatment choices have increased overall survival for mCRC, survival remains optimal for individuals with non-metastatic disease. The molecular technologies currently being used to support our ability to practice personalized medicine; the practical aspects of applying molecular biomarkers to regular clinical practice; and the evolution of chemotherapy, targeted therapy, and immunotherapy strategies for the treatment of mCRC in the front-line setting are all reviewed here.
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Affiliation(s)
- Wattana Leowattana
- Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Pathomthep Leowattana
- Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
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Leowattana W, Leowattana T, Leowattana P. Circulating angiotensin converting enzyme 2 and COVID-19. World J Clin Cases 2022; 10:12470-12483. [PMID: 36579082 PMCID: PMC9791519 DOI: 10.12998/wjcc.v10.i34.12470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/20/2022] [Accepted: 11/08/2022] [Indexed: 12/02/2022] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has triggered a widespread outbreak since December 2019. The SARS-CoV-2 infection-related illness has been dubbed the coronavirus disease 2019 (COVID-19) by the World Health Organization. Asymptomatic and subclinical infections, a severe hyper-inflammatory state, and mortality are all examples of clinical signs. After attaching to the angiotensin converting enzyme 2 (ACE2) receptor, the SARS-CoV-2 virus can enter cells through membrane fusion and endocytosis. In addition to enabling viruses to cling to target cells, the connection between the spike protein (S-protein) of SARS-CoV-2 and ACE2 may potentially impair the functionality of ACE2. Blood pressure is controlled by ACE2, which catalyzes the hydrolysis of the active vasoconstrictor octapeptide angiotensin (Ang) II to the heptapeptide Ang-(1-7) and free L-Phe. Additionally, Ang I can be broken down by ACE2 into Ang-(1-9) and metabolized into Ang-(1-7). Numerous studies have demonstrated that circulating ACE2 (cACE2) and Ang-(1-7) have the ability to restore myocardial damage in a variety of cardiovascular diseases and have anti-inflammatory, antioxidant, anti-apoptotic, and anti-cardiomyocyte fibrosis actions. There have been some suggestions for raising ACE2 expression in COVID-19 patients, which might be used as a target for the creation of novel treatment therapies. With regard to this, SARS-CoV-2 is neutralized by soluble recombinant human ACE2 (hrsACE2), which binds the viral S-protein and reduces damage to a variety of organs, including the heart, kidneys, and lungs, by lowering Ang II concentrations and enhancing conversion to Ang-(1-7). This review aims to investigate how the presence of SARS-CoV-2 and cACE2 are related. Additionally, there will be discussion of a number of potential therapeutic approaches to tip the ACE/ACE-2 balance in favor of the ACE-2/Ang-(1-7) axis.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Bangkok, Thailand
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Leowattana W, Leowattana T, Leowattana P. Human-induced pluripotent stem cell-atrial-specific cardiomyocytes and atrial fibrillation. World J Clin Cases 2022; 10:9588-9601. [PMID: 36186184 PMCID: PMC9516943 DOI: 10.12998/wjcc.v10.i27.9588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/22/2022] [Accepted: 08/16/2022] [Indexed: 02/05/2023] Open
Abstract
Patient-specific human-induced pluripotent stem cell-derived atrial cardiomyocytes (hiPSC-aCMs) may be produced, genome-edited, and differentiated into multiple cell types for regenerative medicine, disease modeling, drug testing, toxicity screening, and three-dimensional tissue fabrication. There is presently no complete model of atrial fibrillation (AF) available for studying human pharmacological responses and evaluating the toxicity of potential medication candidates. It has been demonstrated that hiPSC-aCMs can replicate the electrophysiological disease phenotype and genotype of AF. The hiPSC-aCMs, however, are immature and do not reflect the maturity of aCMs in the native myocardium. Numerous laboratories utilize a variety of methodologies and procedures to improve and promote aCM maturation, including electrical stimulation, culture duration, biophysical signals, and changes in metabolic variables. This review covers the current methods being explored for use in the maturation of patient-specific hiPSC-aCMs and their application towards a personalized approach to the pharmacologic therapy of AF.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
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Leowattana W, Leowattana T, Leowattana P. SARS-CoV-2 viral load in the upper respiratory tract and disease severity in COVID-19 patients. World J Meta-Anal 2022; 10:195-205. [DOI: 10.13105/wjma.v10.i4.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/23/2022] [Accepted: 07/27/2022] [Indexed: 02/05/2023] Open
Abstract
Due to the disease's broad clinical spectrum, it is currently unclear how to predict the future prognosis of patients at the time of diagnosis of coronavirus disease 2019 (COVID-19). Real-time reverse transcription-polymerase chain reaction (RT-PCR) is the gold standard molecular technique for diagnosing COVID-19. The number of amplification cycles necessary for the target genes to surpass a threshold level is represented by the RT-PCR cycle threshold (Ct) values. Ct values were thought to be an adequate proxy for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral load. A body of evidence suggests that SARS-CoV-2 viral load is a possible predictor of COVID-19 severity. The link between SARS-CoV-2 viral load and the likelihood of severe disease development in COVID-19 patients is not clearly elucidated. In this review, we describe the scientific data as well as the important findings from many clinical studies globally, emphasizing how viral load may be related to disease severity in COVID-19 patients. Most of the evidence points to the association of SARS-CoV-2 viral load and disease severity in these patients, and early anti-viral treatment will reduce the severe clinical outcomes.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
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Abstract
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Due to the emergence and spread of the drug resistance to numerous antibiotics, global
research attempts focus on new classes of antibiotics with different mechanisms of action from currently
used drugs. Pleuromutilin was first identified as a natural antibiotic in 1951 from the New
York Botanical Garden and Columbia University. The substance was isolated from Pleurotus mutilus
and Pleurotus passeckerianus. Nevertheless, pleuromutilin was first launched in 1979 (tiamulin)
for use in veterinarians. However, antibiotics with new targets or employing a different action
mechanism are always attractive because they conquered recognized resistance by the bacteria
and were not resisted against approved antibiotic classes. Pleuromutilin has a unique antibacterial
activity that binds to the peptidyl transferase at the central area of the bacteria's 50S ribosome to inhibit
protein synthesis. Pleuromutilin antibiotics have antimicrobial activity against Gram-positive
pathogens. Besides, they cover some fastidious Gram-negative bacteria. As Gram-positive bacteria
increased resistance against currently approved antibiotics, the pleuromutilin antibiotic was investigated
to develop a systemically antibacterial drug to be used in humans. In 2006, lefamulin was developed
and started to encounter studying for systemic infection in humans. Lefamulin is a semisynthetic
pleuromutilin antibiotic, and the US FDA approved it for community-acquired bacterial
pneumonia (CABP) treatment in August 2019. This review will focus on this antibiotic's critical issues,
the relevant bacterial spectrum activity, preclinical and clinical information, and potentially
therapeutic properties of pleuromutilin antibiotic.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajavithi road,
Rachatawee, Bangkok10400, Thailand
| | | | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakharinwirot University, 114 Sukhumvit 23, Wattana District,
Bangkok10110, Thailand
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