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Background: Eukaryotic cells demonstrate two tightly linked vesicular transport systems, comprising intracellular vesicle transport and extracellular vesicle transport system. Intracellular transport vesicles can translocate biomolecules between compartments inside the cell, for example, proteins from the rough endoplasmic reticulum to the Golgi apparatus. Whereas, the secreted vesicles so-called extracellular vesicles facilitate the transport of biomolecules, for example, nucleic acids, proteins and lipids between cells. Vesicles can be formed during the process of endocytosis or/and autophagy and not only act as mediators of intra-and inter-cellular communication but also represent pathological conditions of cells or tissues. Methods: In this review, we searched articles in PubMed, published between 2000 and 2020, with following terms: autophagy, autophagocytosis, transport vesicles, lysosomes, endosomes, exocytosis, exosomes, alone or in different combinations. The biological functions that were selected based on relevancy to our topic include cellular homeostasis and tumorigenesis. Results: The searched literature shows that there is a high degree of synergies between exosome biogenesis and autophagy, which encompass endocytosis and endosomes, lysosomes, exocytosis and exosomes, autophagocytosis, autophagosomes and amphisomes. These transport systems not only maintain cellular homeostasis but also operate synergically against fluctuations in the external and internal environment such as during tumorigenesis and metastasis. Additionally, exosomal and autophagic proteins may serve as cancer diagnosis approaches. Conclusion: Exosomal and autophagy pathways play pivotal roles in homeostasis and metastasis of tumor cells. Understanding the crosstalk between endomembrane organelles and vesicular trafficking may expand our insight into cooperative functions of exosomal and autophagy pathways during disease progression and may help to develop effective therapies against lysosomal diseases including cancers and beyond.

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Since the new coronavirus known as 2019‐nCoV (severe acute respiratory syndrome coronavirus 2, SARS‐CoV‐2) has widely spread in Wuhan, China, with severe pneumonia, scientists and physicians have made remarkable efforts to use various options such as monoclonal antibodies, peptides, vaccines, small‐molecule drugs and interferon therapies to control, prevent or treatment infections of 2019‐nCoV. However, no vaccine or drug has yet been confirmed to completely treat 2019‐nCoV. In this review, we focus on the use of potential available small‐molecule drug candidates for treating infections caused by 2019‐nCoV.

Today, tremendous attention has been devoted to a new coronavirus, SARS‐CoV‐2 (2019‐nCoV), due to severe effects on the global public in all over the world. Rapid and accurate diagnosis of 2019‐nCoV are important for early treatment and cutting off epidemic transmission. In this regard, laboratory detection protocols, such as polymerase chain reaction (PCR) and computed tomography (CT) examination, have been utilized broadly for 2019‐nCoV detection. Recently, nano‐based methods for 2019‐nCoV diagnoses are rapidly expanding and declaring comparable results with PCR and CT. In this review, recent advances in nano‐based techniques have been highlighted and compared briefly with PCR and CT as well‐known methods for 2019‐nCoV detection.