Mini-review: The market growth of diagnostic and therapeutic monoclonal antibodies; SARS CoV-2 an example

BACKGROUND: The emergence of novel viruses poses severe challenges to global public health highlighting the crucial necessity for new antivirals. MAIN BODY: Monoclonal antibodies (mAbs) are immunoglobulins that bind with a single epitope. Mouse mAbs are generated by classic hybridoma technology and are mainly used for immunodiagnostics. For immunotherapy, it is critical to use monoclonal antibodies in the human form to minimize adverse reactions. They have been successfully used to treat numerous illnesses, accordingly, an increasing number of mAbs, with high potency against emerging viruses is the target of every biopharmaceutical company. The diagnostic and therapeutic mAbs market grows rapidly into a multi-billion-dollar business. Biopharmaceuticals are innovative resolutions which revolutionized the treatment of significant chronic diseases and malignancies. Currently, a variety of therapeutic options that include antiviral medications, monoclonal antibodies, and immunomodulatory agents are available in the management of COVID-19. SHORT CONCLUSION: The invasion of mAbs in new medical sectors will increase the market magnitude as it is expected to generate revenue of about 300 billion $ by 2025. In the current mini-review, the applications of monoclonal antibodies in immune-diagnosis and immunotherapy will be demonstrated, particularly for COVID-19 infection and will focus mainly on monoclonal antibodies in the market.

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Hybridoma technology; advancements, clinical significance, and future aspects

Journal of Genetic Engineering and Biotechnology ◽

10.1186/s43141-021-00264-6 ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

Sanchita Mitra ◽

Pushpa Chaudhary Tomar

Keyword(s):

Monoclonal Antibodies ◽

Clinical Significance ◽

Cell Lines ◽

Tumor Antigens ◽

Specific Antigen ◽

Hybridoma Cells ◽

Main Body ◽

Highly Sensitive ◽

Hybridoma Technology

Abstract Background Hybridoma technology is one of the most common methods used to produce monoclonal antibodies. In this process, antibody-producing B lymphocytes are isolated from mice after immunizing the mice with specific antigen and are fused with immortal myeloma cell lines to form hybrid cells, called hybridoma cell lines. These hybridoma cells are cultured in a lab to produce monoclonal antibodies, against a specific antigen. This can be achieved by an in vivo or an in vitro method. It is preferred above all the available methods to produce monoclonal antibodies because antibodies thus produced are of high purity and are highly sensitive and specific. Main body of the abstract Monoclonal antibodies are useful in diagnostic, imaging, and therapeutic purposes and have a very high clinical significance. Once hybridoma cells become stable, these cell lines offer limitless production of homogenized antibodies. This method is also cost-effective. The antibodies produced by this method are highly sensitive and specific to the targeted antigen. It is an important tool used in various fields of research such as in toxicology, animal biotechnology, medicine, pharmacology, cell, and molecular biology. Monoclonal antibodies are used extensively in the diagnosis and therapeutic applications. Radiolabeled monoclonal antibodies are used as probes to detect tumor antigens in the living system; also radioisotope coupled antibodies are used for therapeutic target specific action on oncogenic cells. Short conclusion Presently, the monoclonal antibodies used are either raised in mice or rats; this poses a risk of disease transfer from mice to humans. There is no guarantee that antibodies thus created are entirely virus-free, despite the purification process. Also, there are some immunogenic responses observed against the antibodies of mice origin. Technologically advanced techniques such as genetic engineering helped in reducing some of these limitations. Advanced methods are under development to make lab-produced monoclonal antibodies as human as possible. This review discusses the advantages and challenges associated with monoclonal antibody production, also enlightens the advancement, clinical significance, and future aspects of this technique.

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Neutralizing Monoclonal Antibodies as Promising Therapeutics against Middle East Respiratory Syndrome Coronavirus Infection

Viruses ◽

10.3390/v10120680 ◽

2018 ◽

Vol 10 (12) ◽

pp. 680 ◽

Cited By ~ 8

Author(s):

Hui-Ju Han ◽

Jian-Wei Liu ◽

Hao Yu ◽

Xue-Jie Yu

Keyword(s):

Monoclonal Antibodies ◽

Middle East ◽

Middle East Respiratory Syndrome ◽

Global Public Health ◽

Emerging Viruses ◽

Passive Immunotherapy ◽

Worldwide Distribution ◽

High Fatality Rate ◽

Coronavirus Infection ◽

Review Current

Since emerging in 2012, Middle East Respiratory Syndrome Coronavirus (MERS-CoV) has been a global public health threat with a high fatality rate and worldwide distribution. There are no approved vaccines or therapies for MERS until now. Passive immunotherapy with neutralizing monoclonal antibodies (mAbs) is an effective prophylactic and therapeutic reagent against emerging viruses. In this article, we review current advances in neutralizing mAbs against MERS-CoV. The receptor-binding domain (RBD) in the spike protein of MERS-CoV is a major target, and mouse, camel, or human-derived neutralizing mAbs targeting RBD have been developed. A major problem with neutralizing mAb therapy is mutant escape under selective pressure, which can be solved by combination of neutralizing mAbs targeting different epitopes. Neutralizing mAbs are currently under preclinical evaluation, and they are promising candidate therapeutic agents against MERS-CoV infection.

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PERSPECTIVES OF APPLICATION OF ANTIBODIES AGAINST ENDOGLIN (CD105) FOR VISUALIZATION AND ANTI-ANGIOGENE THERAPY OF TUMORS

Problems in oncology ◽

10.37469/0507-3758-2018-64-4-504-507 ◽

2018 ◽

Vol 64 (4) ◽

pp. 504-507

Author(s):

Vladimir Klimovich ◽

Natalya Vartanyan ◽

Anastasiya Stolbovaya ◽

Lidiya Terekhina ◽

Olga Shashkova ◽

...

Keyword(s):

Endothelial Cells ◽

Monoclonal Antibodies ◽

Human Plasma ◽

Vascular Endothelium ◽

Immune Complexes ◽

Targeted Delivery ◽

Biological Fluids ◽

Therapeutic Drugs ◽

Cultured Endothelial Cells ◽

Hybridoma Technology

During last years monoclonal antibodies (MAB) directed against vascular endothelium markers demonstrated their efficiency for visualization and targeted delivery of therapeutic drugs to tumors. Endoglin (CD105) which serves as a key element that determines endothelial cells quiescence or activation is one of such markers. Endoglin is highly expressed on the vascular endothelium of growing tumors. A first panel of MAB against endoglin in our country was produced at the hybridoma technology laboratory of RRC RST named after A.M. Granov. On the basis of these MAB ELISA was created allowing detection of endoglin in human plasma and other biological fluids. Several MAB had been shown to bind endoglin on the membrane of the cultured endothelial cells and to persist there for several hours. During the first 30 min after binding some of the immune complexes “endoglin-MAB” were internalized into the cytoplasm and were found included in the endosomes. In future these MAB can be used to create the reagents for the addressed delivery of isotope tags both on the membrane and into the cytoplasm of endothelial cells.

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Design of Innovative Therapeutic Monoclonal Antibodies

Biotekhnologiya ◽

10.21519/0234-2758-2017-33-1-10-29 ◽

2017 ◽

pp. 10-29

Author(s):

A.V. Karabelskii ◽

◽

T.A. Nemankin ◽

A.B. Ulitin ◽

A.S. Vaganov ◽

...

Keyword(s):

Monoclonal Antibodies ◽

Therapeutic Monoclonal Antibodies

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Therapeutic Monoclonal Antibodies in Clinical Practice against Cancer

Anti-Cancer Agents in Medicinal Chemistry ◽

10.2174/1871520620666200703191653 ◽

2020 ◽

Vol 20 (16) ◽

pp. 1895-1907

Author(s):

Navgeet Kaur ◽

Anju Goyal ◽

Rakesh K. Sindhu

Keyword(s):

Monoclonal Antibody ◽

Monoclonal Antibodies ◽

Clinical Practice ◽

Therapeutic Agent ◽

Hematologic Malignancies ◽

Immune Checkpoints ◽

Malignant Cells ◽

Main Target ◽

Therapeutic Monoclonal Antibodies ◽

Cancerous Cells

The importance of monoclonal antibodies in oncology has increased drastically following the discovery of Milstein and Kohler. Since the first approval of the monoclonal antibody, i.e. Rituximab in 1997 by the FDA, there was a decline in further applications but this number has significantly increased over the last three decades for various therapeutic applications due to the lesser side effects in comparison to the traditional chemotherapy methods. Presently, numerous monoclonal antibodies have been approved and many are in queue for approval as a strong therapeutic agent for treating hematologic malignancies and solid tumors. The main target checkpoints for the monoclonal antibodies against cancer cells include EGFR, VEGF, CD and tyrosine kinase which are overexpressed in malignant cells. Other immune checkpoints like CTLA-4, PD-1 and PD-1 receptors targeted by the recently developed antibodies increase the capability of the immune system in destroying the cancerous cells. Here, in this review, the mechanism of action, uses and target points of the approved mAbs against cancer have been summarized.

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COVID-19: Unmasking Emerging SARS-CoV-2 Variants, Vaccines and Therapeutic Strategies

Biomolecules ◽

10.3390/biom11070993 ◽

2021 ◽

Vol 11 (7) ◽

pp. 993

Author(s):

Renuka Raman ◽

Krishna J. Patel ◽

Kishu Ranjan

Keyword(s):

Immune Response ◽

Monoclonal Antibodies ◽

Severe Acute Respiratory Syndrome ◽

Small Molecules ◽

Viral Vector ◽

Therapeutic Strategies ◽

Convincing Evidence ◽

Plasma Therapy ◽

Therapeutic Monoclonal Antibodies ◽

Increased Susceptibility

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of the coronavirus disease 2019 (COVID-19) pandemic, which has been a topic of major concern for global human health. The challenge to restrain the COVID-19 pandemic is further compounded by the emergence of several SARS-CoV-2 variants viz. B.1.1.7 (Alpha), B.1.351 (Beta), P1 (Gamma) and B.1.617.2 (Delta), which show increased transmissibility and resistance towards vaccines and therapies. Importantly, there is convincing evidence of increased susceptibility to SARS-CoV-2 infection among individuals with dysregulated immune response and comorbidities. Herein, we provide a comprehensive perspective regarding vulnerability of SARS-CoV-2 infection in patients with underlying medical comorbidities. We discuss ongoing vaccine (mRNA, protein-based, viral vector-based, etc.) and therapeutic (monoclonal antibodies, small molecules, plasma therapy, etc.) modalities designed to curb the COVID-19 pandemic. We also discuss in detail, the challenges posed by different SARS-CoV-2 variants of concern (VOC) identified across the globe and their effects on therapeutic and prophylactic interventions.

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